HETEROLITHIC MICROWAVE INTEGRATED CIRCUITS INCLUDING GALLIUM-NITRIDE DEVICES ON INTRINSIC SEMICONDUCTOR | Matter42 Literature
Patent
Atlas literature
Patent
US 11,640,960 B2
HETEROLITHIC MICROWAVE INTEGRATED CIRCUITS INCLUDING GALLIUM-NITRIDE DEVICES ON INTRINSIC SEMICONDUCTOR
Timothy E. Boles, Wayne Mack Struble
MACOM Technology Solutions Holdings, Inc., Lowell, MA (US)·May 2, 2023·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1 depicts an example portion of a heterolithic microwave integrated circuit (HMIC) according to a first embodiment;
FIG. 2
FIG. 2 depicts an example portion of an HMIC according to a second embodiment;
FIG. 3
FIG. 3 depicts an example portion of an HMIC according to a third embodiment;
FIG. 4
FIG. 4-4C illustrates formation of one or more epitaxial layers of a different semiconductor material on a highly doped region of an intrinsic semiconductor …
FIG. 5
FIG. 5 illustrates circuitry formed for an HMIC;
FIG. 6
FIG. 6 illustrates passivation of HMIC circuitry;
FIG. 7
FIG. 7 illustrates an example portion of an HMIC sub- strate in which a portion of the wafer’s backside has been removed and a conductive ground plane has been …
FIG. 8
FIG. 8B depicts an elevation view of an example package that can contain an HMIC die. Features and advantages of the illustrated embodiments 60 will become …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
2 independent · 18 dependent
1
Independentfirst semiconductor material (silicon-based)second semiconductor material (gallium-oxide-containing transistor material)electrically-insulating dielectric materialheterolithic microwave integrated circuit (HMIC)
An integrated circuit, comprising: a first region of the integrated circuit, the first region containing a diode formed on a substrate from a first semiconductor material of a first base elemental com-position that is common with the substrate; 15 a second region of the integrated circuit, the second region containing a transistor comprising gallium-oxide formed over the substrate from a second semiconductor material that is different than the first semiconductor material of the first base elemental composition; and 20 a third region of the integrated circuit containing an electrically-insulating dielectric material.
2
Dependent← claim 1electrically-insulating dielectric material
The integrated circuit of claim 1, wherein the electri-cally-insulating dielectric material extends through the substrate and separates the substrate between the first region and the second region.
3
Dependent← claim 1p-i-n or n-i-p diode
The integrated circuit of claim 1, wherein the diode comprises a p-i-n or n-i-p diode.
4
Dependent← claim 1first semiconductor material (silicon-based)
The integrated circuit of claim 1, further comprising an intrinsic region of the first semiconductor material located between the second semiconductor material and the substrate in the second region.
5
Dependent← claim 1SiGaN
The integrated circuit of claim 1, wherein: the first semiconductor material has a base elemental composition of silicon; and the second semiconductor material comprises gallium-nitride material.
The integrated circuit of claim 1, wherein the transistor comprises a high-electron-mobility transistor.
7
Dependent← claim 1
The integrated circuit of claim 1, further comprising at least a portion of a conductive interconnect formed over the third region.
8
Dependent← claim 1
The integrated circuit of claim 1, further comprising at least a portion of a passive circuit element formed over the third region.
10
Dependent← claim 1
The integrated circuit of claim 1, further comprising a ground plane formed on a back side of the substrate below the first region, second region, and third region.
11
Dependent← claim 1
The integrated circuit of claim 1, further comprising a passivation layer formed over the first region, second region, and third region.
12
Dependent← claim 1glass
The integrated circuit of claim 1, wherein the electri-cally-insulating dielectric material comprises glass.
13
Dependent← claim 1first semiconductor material (silicon-based)
The integrated circuit of claim 1, further comprising doped region of the first semiconductor material under the second semiconductor material in the second region.
14
Independentfirst semiconductor material (silicon-based)second semiconductor material (gallium-oxide-containing transistor material)electrically-insulating dielectric material
A method of manufacturing an integrated circuit, the method comprising: forming a first semiconductor device from a first semiconductor material in a first region of a wafer; forming a second semiconductor material on the first semiconductor material in a second region of the wafer, the second semiconductor material having a different base elemental composition than the first semiconduc-tor material; forming a second semiconductor device comprising gal-lium-oxide formed from the second semiconductor material; etching a cavity in a third region of the wafer; filling the cavity with an electrically-insulating material; planarizing the electrically-insulating material; and removing a portion of a backside of the wafer to expose the electrically-insulating material.
15
Dependent← claim 14p-i-n or n-i-p diodehigh-electron-mobility transistor (HEMT)
The method of claim 14, wherein: forming the first semiconductor device comprises forming a diode; and forming the second semiconductor device comprises forming a transistor.
16
Dependent← claim 14SiGaN
The method of claim 14, wherein: the first semiconductor material has a base elemental composition of silicon; and the second semiconductor material comprises gallium-nitride material.
17
Dependent← claim 14
The method of claim 14, wherein forming the second semiconductor material comprises epitaxially growing the second semiconductor material on the first semiconductor material.
18
Dependent← claim 14
The method of claim 14, further comprising covering the second semiconductor material with a protective layer before filling the cavity.
20
Dependent← claim 14
The method of claim 14, further comprising forming a conductive interconnect over the electrically-insulating material in the third region. ∗ ∗ ∗ ∗ ∗
Device structures
Layer stacks claimed or described, ordered top of device to substrate.
heterolithic microwave integrated circuit (HMIC)
electrically-insulating dielectric materialthird region - electrically-insulating dielectric
second semiconductor material (gallium-oxide-containing transistor material)second region - transistor active material
first semiconductor material (silicon-based)first region - diode active area
first semiconductor material (silicon-based)substrate (first semiconductor material)
p-i-n or n-i-p diode
Sip-type doped region
Materials
Materials described outside the worked examples.
first semiconductor material (silicon-based)
Substrate And First Device Active Material
second semiconductor material (gallium-oxide-containing transistor material)
Second Device Active Material
Process steps
Additional fabrication and treatment steps described in the patent.
1
Epitaxial Growth
Step 1
Process details
notes:GaN epitaxial layers grown on first semiconductor material; second semiconductor material epitaxially grown on first semiconductor material per claim 17
method:epitaxial growth
substrate:highly doped silicon or intrinsic silicon
Materials:
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 4-4C illustrates formation of one or more epitaxial layers of a different semiconductor material on a highly doped region of an intrinsic semiconductor …
HETEROLITHIC MICROWAVE INTEGRATED CIRCUITS INCLUDING GALLIUM-NITRIDE DEVICES ON INTRINSIC SEMICONDUCTOR
Timothy E. Boles, Wayne Mack Struble
MACOM Technology Solutions Holdings, Inc., Lowell, MA (US)·May 2, 2023·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1 depicts an example portion of a heterolithic microwave integrated circuit (HMIC) according to a first embodiment;
FIG. 2
FIG. 2 depicts an example portion of an HMIC according to a second embodiment;
FIG. 3
FIG. 3 depicts an example portion of an HMIC according to a third embodiment;
FIG. 4
FIG. 4-4C illustrates formation of one or more epitaxial layers of a different semiconductor material on a highly doped region of an intrinsic semiconductor …
FIG. 5
FIG. 5 illustrates circuitry formed for an HMIC;
FIG. 6
FIG. 6 illustrates passivation of HMIC circuitry;
FIG. 7
FIG. 7 illustrates an example portion of an HMIC sub- strate in which a portion of the wafer’s backside has been removed and a conductive ground plane has been …
FIG. 8
FIG. 8B depicts an elevation view of an example package that can contain an HMIC die. Features and advantages of the illustrated embodiments 60 will become …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
2 independent · 18 dependent
1
Independentfirst semiconductor material (silicon-based)second semiconductor material (gallium-oxide-containing transistor material)electrically-insulating dielectric materialheterolithic microwave integrated circuit (HMIC)
An integrated circuit, comprising: a first region of the integrated circuit, the first region containing a diode formed on a substrate from a first semiconductor material of a first base elemental com-position that is common with the substrate; 15 a second region of the integrated circuit, the second region containing a transistor comprising gallium-oxide formed over the substrate from a second semiconductor material that is different than the first semiconductor material of the first base elemental composition; and 20 a third region of the integrated circuit containing an electrically-insulating dielectric material.
2
Dependent← claim 1electrically-insulating dielectric material
The integrated circuit of claim 1, wherein the electri-cally-insulating dielectric material extends through the substrate and separates the substrate between the first region and the second region.
3
Dependent← claim 1p-i-n or n-i-p diode
The integrated circuit of claim 1, wherein the diode comprises a p-i-n or n-i-p diode.
4
Dependent← claim 1first semiconductor material (silicon-based)
The integrated circuit of claim 1, further comprising an intrinsic region of the first semiconductor material located between the second semiconductor material and the substrate in the second region.
5
Dependent← claim 1SiGaN
The integrated circuit of claim 1, wherein: the first semiconductor material has a base elemental composition of silicon; and the second semiconductor material comprises gallium-nitride material.
The integrated circuit of claim 1, wherein the transistor comprises a high-electron-mobility transistor.
7
Dependent← claim 1
The integrated circuit of claim 1, further comprising at least a portion of a conductive interconnect formed over the third region.
8
Dependent← claim 1
The integrated circuit of claim 1, further comprising at least a portion of a passive circuit element formed over the third region.
10
Dependent← claim 1
The integrated circuit of claim 1, further comprising a ground plane formed on a back side of the substrate below the first region, second region, and third region.
11
Dependent← claim 1
The integrated circuit of claim 1, further comprising a passivation layer formed over the first region, second region, and third region.
12
Dependent← claim 1glass
The integrated circuit of claim 1, wherein the electri-cally-insulating dielectric material comprises glass.
13
Dependent← claim 1first semiconductor material (silicon-based)
The integrated circuit of claim 1, further comprising doped region of the first semiconductor material under the second semiconductor material in the second region.
14
Independentfirst semiconductor material (silicon-based)second semiconductor material (gallium-oxide-containing transistor material)electrically-insulating dielectric material
A method of manufacturing an integrated circuit, the method comprising: forming a first semiconductor device from a first semiconductor material in a first region of a wafer; forming a second semiconductor material on the first semiconductor material in a second region of the wafer, the second semiconductor material having a different base elemental composition than the first semiconduc-tor material; forming a second semiconductor device comprising gal-lium-oxide formed from the second semiconductor material; etching a cavity in a third region of the wafer; filling the cavity with an electrically-insulating material; planarizing the electrically-insulating material; and removing a portion of a backside of the wafer to expose the electrically-insulating material.
15
Dependent← claim 14p-i-n or n-i-p diodehigh-electron-mobility transistor (HEMT)
The method of claim 14, wherein: forming the first semiconductor device comprises forming a diode; and forming the second semiconductor device comprises forming a transistor.
16
Dependent← claim 14SiGaN
The method of claim 14, wherein: the first semiconductor material has a base elemental composition of silicon; and the second semiconductor material comprises gallium-nitride material.
17
Dependent← claim 14
The method of claim 14, wherein forming the second semiconductor material comprises epitaxially growing the second semiconductor material on the first semiconductor material.
18
Dependent← claim 14
The method of claim 14, further comprising covering the second semiconductor material with a protective layer before filling the cavity.
20
Dependent← claim 14
The method of claim 14, further comprising forming a conductive interconnect over the electrically-insulating material in the third region. ∗ ∗ ∗ ∗ ∗
Device structures
Layer stacks claimed or described, ordered top of device to substrate.
heterolithic microwave integrated circuit (HMIC)
electrically-insulating dielectric materialthird region - electrically-insulating dielectric
second semiconductor material (gallium-oxide-containing transistor material)second region - transistor active material
first semiconductor material (silicon-based)first region - diode active area
first semiconductor material (silicon-based)substrate (first semiconductor material)
p-i-n or n-i-p diode
Sip-type doped region
Materials
Materials described outside the worked examples.
first semiconductor material (silicon-based)
Substrate And First Device Active Material
second semiconductor material (gallium-oxide-containing transistor material)
Second Device Active Material
Process steps
Additional fabrication and treatment steps described in the patent.
1
Epitaxial Growth
Step 1
Process details
notes:GaN epitaxial layers grown on first semiconductor material; second semiconductor material epitaxially grown on first semiconductor material per claim 17
method:epitaxial growth
substrate:highly doped silicon or intrinsic silicon
Materials:
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 4-4C illustrates formation of one or more epitaxial layers of a different semiconductor material on a highly doped region of an intrinsic semiconductor …
HETEROLITHIC MICROWAVE INTEGRATED CIRCUITS INCLUDING GALLIUM-NITRIDE DEVICES ON INTRINSIC SEMICONDUCTOR
Timothy E. Boles, Wayne Mack Struble
MACOM Technology Solutions Holdings, Inc., Lowell, MA (US)·May 2, 2023·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1 depicts an example portion of a heterolithic microwave integrated circuit (HMIC) according to a first embodiment;
FIG. 2
FIG. 2 depicts an example portion of an HMIC according to a second embodiment;
FIG. 3
FIG. 3 depicts an example portion of an HMIC according to a third embodiment;
FIG. 4
FIG. 4-4C illustrates formation of one or more epitaxial layers of a different semiconductor material on a highly doped region of an intrinsic semiconductor …
FIG. 5
FIG. 5 illustrates circuitry formed for an HMIC;
FIG. 6
FIG. 6 illustrates passivation of HMIC circuitry;
FIG. 7
FIG. 7 illustrates an example portion of an HMIC sub- strate in which a portion of the wafer’s backside has been removed and a conductive ground plane has been …
FIG. 8
FIG. 8B depicts an elevation view of an example package that can contain an HMIC die. Features and advantages of the illustrated embodiments 60 will become …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
2 independent · 18 dependent
1
Independentfirst semiconductor material (silicon-based)second semiconductor material (gallium-oxide-containing transistor material)electrically-insulating dielectric materialheterolithic microwave integrated circuit (HMIC)
An integrated circuit, comprising: a first region of the integrated circuit, the first region containing a diode formed on a substrate from a first semiconductor material of a first base elemental com-position that is common with the substrate; 15 a second region of the integrated circuit, the second region containing a transistor comprising gallium-oxide formed over the substrate from a second semiconductor material that is different than the first semiconductor material of the first base elemental composition; and 20 a third region of the integrated circuit containing an electrically-insulating dielectric material.
2
Dependent← claim 1electrically-insulating dielectric material
The integrated circuit of claim 1, wherein the electri-cally-insulating dielectric material extends through the substrate and separates the substrate between the first region and the second region.
3
Dependent← claim 1p-i-n or n-i-p diode
The integrated circuit of claim 1, wherein the diode comprises a p-i-n or n-i-p diode.
4
Dependent← claim 1first semiconductor material (silicon-based)
The integrated circuit of claim 1, further comprising an intrinsic region of the first semiconductor material located between the second semiconductor material and the substrate in the second region.
5
Dependent← claim 1SiGaN
The integrated circuit of claim 1, wherein: the first semiconductor material has a base elemental composition of silicon; and the second semiconductor material comprises gallium-nitride material.
The integrated circuit of claim 1, wherein the transistor comprises a high-electron-mobility transistor.
7
Dependent← claim 1
The integrated circuit of claim 1, further comprising at least a portion of a conductive interconnect formed over the third region.
8
Dependent← claim 1
The integrated circuit of claim 1, further comprising at least a portion of a passive circuit element formed over the third region.
10
Dependent← claim 1
The integrated circuit of claim 1, further comprising a ground plane formed on a back side of the substrate below the first region, second region, and third region.
11
Dependent← claim 1
The integrated circuit of claim 1, further comprising a passivation layer formed over the first region, second region, and third region.
12
Dependent← claim 1glass
The integrated circuit of claim 1, wherein the electri-cally-insulating dielectric material comprises glass.
13
Dependent← claim 1first semiconductor material (silicon-based)
The integrated circuit of claim 1, further comprising doped region of the first semiconductor material under the second semiconductor material in the second region.
14
Independentfirst semiconductor material (silicon-based)second semiconductor material (gallium-oxide-containing transistor material)electrically-insulating dielectric material
A method of manufacturing an integrated circuit, the method comprising: forming a first semiconductor device from a first semiconductor material in a first region of a wafer; forming a second semiconductor material on the first semiconductor material in a second region of the wafer, the second semiconductor material having a different base elemental composition than the first semiconduc-tor material; forming a second semiconductor device comprising gal-lium-oxide formed from the second semiconductor material; etching a cavity in a third region of the wafer; filling the cavity with an electrically-insulating material; planarizing the electrically-insulating material; and removing a portion of a backside of the wafer to expose the electrically-insulating material.
15
Dependent← claim 14p-i-n or n-i-p diodehigh-electron-mobility transistor (HEMT)
The method of claim 14, wherein: forming the first semiconductor device comprises forming a diode; and forming the second semiconductor device comprises forming a transistor.
16
Dependent← claim 14SiGaN
The method of claim 14, wherein: the first semiconductor material has a base elemental composition of silicon; and the second semiconductor material comprises gallium-nitride material.
17
Dependent← claim 14
The method of claim 14, wherein forming the second semiconductor material comprises epitaxially growing the second semiconductor material on the first semiconductor material.
18
Dependent← claim 14
The method of claim 14, further comprising covering the second semiconductor material with a protective layer before filling the cavity.
20
Dependent← claim 14
The method of claim 14, further comprising forming a conductive interconnect over the electrically-insulating material in the third region. ∗ ∗ ∗ ∗ ∗
Device structures
Layer stacks claimed or described, ordered top of device to substrate.
heterolithic microwave integrated circuit (HMIC)
electrically-insulating dielectric materialthird region - electrically-insulating dielectric
second semiconductor material (gallium-oxide-containing transistor material)second region - transistor active material
first semiconductor material (silicon-based)first region - diode active area
first semiconductor material (silicon-based)substrate (first semiconductor material)
p-i-n or n-i-p diode
Sip-type doped region
Materials
Materials described outside the worked examples.
first semiconductor material (silicon-based)
Substrate And First Device Active Material
second semiconductor material (gallium-oxide-containing transistor material)
Second Device Active Material
Process steps
Additional fabrication and treatment steps described in the patent.
1
Epitaxial Growth
Step 1
Process details
notes:GaN epitaxial layers grown on first semiconductor material; second semiconductor material epitaxially grown on first semiconductor material per claim 17
method:epitaxial growth
substrate:highly doped silicon or intrinsic silicon
Materials:
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 4-4C illustrates formation of one or more epitaxial layers of a different semiconductor material on a highly doped region of an intrinsic semiconductor …
HETEROLITHIC MICROWAVE INTEGRATED CIRCUITS INCLUDING GALLIUM-NITRIDE DEVICES ON INTRINSIC SEMICONDUCTOR
Timothy E. Boles, Wayne Mack Struble
MACOM Technology Solutions Holdings, Inc., Lowell, MA (US)·May 2, 2023·US
Drawings
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1
FIG. 1 depicts an example portion of a heterolithic microwave integrated circuit (HMIC) according to a first embodiment;
FIG. 2
FIG. 2 depicts an example portion of an HMIC according to a second embodiment;
FIG. 3
FIG. 3 depicts an example portion of an HMIC according to a third embodiment;
FIG. 4
FIG. 4-4C illustrates formation of one or more epitaxial layers of a different semiconductor material on a highly doped region of an intrinsic semiconductor …
FIG. 5
FIG. 5 illustrates circuitry formed for an HMIC;
FIG. 6
FIG. 6 illustrates passivation of HMIC circuitry;
FIG. 7
FIG. 7 illustrates an example portion of an HMIC sub- strate in which a portion of the wafer’s backside has been removed and a conductive ground plane has been …
FIG. 8
FIG. 8B depicts an elevation view of an example package that can contain an HMIC die. Features and advantages of the illustrated embodiments 60 will become …
Claims
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
2 independent · 18 dependent
1
Independentfirst semiconductor material (silicon-based)second semiconductor material (gallium-oxide-containing transistor material)electrically-insulating dielectric materialheterolithic microwave integrated circuit (HMIC)
An integrated circuit, comprising: a first region of the integrated circuit, the first region containing a diode formed on a substrate from a first semiconductor material of a first base elemental com-position that is common with the substrate; 15 a second region of the integrated circuit, the second region containing a transistor comprising gallium-oxide formed over the substrate from a second semiconductor material that is different than the first semiconductor material of the first base elemental composition; and 20 a third region of the integrated circuit containing an electrically-insulating dielectric material.
2
Dependent← claim 1electrically-insulating dielectric material
The integrated circuit of claim 1, wherein the electri-cally-insulating dielectric material extends through the substrate and separates the substrate between the first region and the second region.
3
Dependent← claim 1p-i-n or n-i-p diode
The integrated circuit of claim 1, wherein the diode comprises a p-i-n or n-i-p diode.
4
Dependent← claim 1first semiconductor material (silicon-based)
The integrated circuit of claim 1, further comprising an intrinsic region of the first semiconductor material located between the second semiconductor material and the substrate in the second region.
5
Dependent← claim 1SiGaN
The integrated circuit of claim 1, wherein: the first semiconductor material has a base elemental composition of silicon; and the second semiconductor material comprises gallium-nitride material.
The integrated circuit of claim 1, wherein the transistor comprises a high-electron-mobility transistor.
7
Dependent← claim 1
The integrated circuit of claim 1, further comprising at least a portion of a conductive interconnect formed over the third region.
8
Dependent← claim 1
The integrated circuit of claim 1, further comprising at least a portion of a passive circuit element formed over the third region.
10
Dependent← claim 1
The integrated circuit of claim 1, further comprising a ground plane formed on a back side of the substrate below the first region, second region, and third region.
11
Dependent← claim 1
The integrated circuit of claim 1, further comprising a passivation layer formed over the first region, second region, and third region.
12
Dependent← claim 1glass
The integrated circuit of claim 1, wherein the electri-cally-insulating dielectric material comprises glass.
13
Dependent← claim 1first semiconductor material (silicon-based)
The integrated circuit of claim 1, further comprising doped region of the first semiconductor material under the second semiconductor material in the second region.
14
Independentfirst semiconductor material (silicon-based)second semiconductor material (gallium-oxide-containing transistor material)electrically-insulating dielectric material
A method of manufacturing an integrated circuit, the method comprising: forming a first semiconductor device from a first semiconductor material in a first region of a wafer; forming a second semiconductor material on the first semiconductor material in a second region of the wafer, the second semiconductor material having a different base elemental composition than the first semiconduc-tor material; forming a second semiconductor device comprising gal-lium-oxide formed from the second semiconductor material; etching a cavity in a third region of the wafer; filling the cavity with an electrically-insulating material; planarizing the electrically-insulating material; and removing a portion of a backside of the wafer to expose the electrically-insulating material.
15
Dependent← claim 14p-i-n or n-i-p diodehigh-electron-mobility transistor (HEMT)
The method of claim 14, wherein: forming the first semiconductor device comprises forming a diode; and forming the second semiconductor device comprises forming a transistor.
16
Dependent← claim 14SiGaN
The method of claim 14, wherein: the first semiconductor material has a base elemental composition of silicon; and the second semiconductor material comprises gallium-nitride material.
17
Dependent← claim 14
The method of claim 14, wherein forming the second semiconductor material comprises epitaxially growing the second semiconductor material on the first semiconductor material.
18
Dependent← claim 14
The method of claim 14, further comprising covering the second semiconductor material with a protective layer before filling the cavity.
20
Dependent← claim 14
The method of claim 14, further comprising forming a conductive interconnect over the electrically-insulating material in the third region. ∗ ∗ ∗ ∗ ∗
Device structures
Layer stacks claimed or described, ordered top of device to substrate.
heterolithic microwave integrated circuit (HMIC)
electrically-insulating dielectric materialthird region - electrically-insulating dielectric
second semiconductor material (gallium-oxide-containing transistor material)second region - transistor active material
first semiconductor material (silicon-based)first region - diode active area
first semiconductor material (silicon-based)substrate (first semiconductor material)
p-i-n or n-i-p diode
Sip-type doped region
Materials
Materials described outside the worked examples.
first semiconductor material (silicon-based)
Substrate And First Device Active Material
second semiconductor material (gallium-oxide-containing transistor material)
Second Device Active Material
Process steps
Additional fabrication and treatment steps described in the patent.
1
Epitaxial Growth
Step 1
Process details
notes:GaN epitaxial layers grown on first semiconductor material; second semiconductor material epitaxially grown on first semiconductor material per claim 17
method:epitaxial growth
substrate:highly doped silicon or intrinsic silicon
Materials:
Characterization
Measurements and analyses referenced in the patent, with their drawing references.
fet electrical
Fet Electrical
FIG. 4-4C illustrates formation of one or more epitaxial layers of a different semiconductor material on a highly doped region of an intrinsic semiconductor …
Sisubstrate (highly doped silicon or intrinsic silicon)
electrically-insulating dielectric material
Insulating Region Fill Material
silicon
Si
First Semiconductor Material (Base Elemental Composition)
Intrinsic Semiconductor Layer Underlying GaN DeviceDoped Substrate On Which GaN Epitaxial Layers Are Grown
gallium-nitride material
GaN
Second Semiconductor Material For Transistor
HEMT Active Layers
glass
Electrically-Insulating Dielectric Material
GaN
2
Cavity Etch And Fill
Step 2
Process details
steps:etching a cavity in a third region of the wafer, covering second semiconductor material with protective layer, filling cavity with electrically-insulating material under pressure, planarizing the electrically-insulating material, removing a portion of a backside of the wafer to expose the electrically-insulating material
Materials:electrically-insulating dielectric material
3
Ion Implantation And Diffusion
Step 3
Process details
notes:Highly doped region formed in intrinsic silicon by ion implantation and diffusion, or by epitaxial growth of thin highly doped silicon layer; doping density at least 5e18 cm⁻³
Materials:Si
Si
Doping Density
—
Si
Thickness
1.5–4 µm
—
Thickness
50–300 nm
—
Thickness
120–200 µm
—
Thickness
250–750 µm
—
Pressure
10–50 mTorr
—
Temperature
700–900 °C
—
Pressure
0.5–3 Torr
—
Duration
10–120 s
—
Thickness
50–200 µm
—
Thickness
10–50 µm
—
Thickness
1.5–6 µm
—
Thickness
≤ 10 µm
—
Thickness
≥ 50 µm
—
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US 9,431,551 B29,431,551 B2 8/2016 Wilhelm
US 9,515,161 B19,515,161 B1 12/2016 Shinohara et al.
US 9,559,012 B19,559,012 B1 1/2017 Chu et al.
US 9,799,760 B29,799,760 B2 10/2017 Green et al.
US 9,818,856 B29,818,856 B2 11/2017 Hoshi et al.
US 9,837,521 B29,837,521 B2 12/2017 Yamamoto et al.
US 9,837,524 B29,837,524 B2 12/2017 Miyake et al.
US 9,853,108 B29,853,108 B2 12/2017 Kawaguchi
US 9,893,174 B29,893,174 B2 2/2018 Chowdhury et al.
US 9,911,817 B29,911,817 B2 3/2018 Xia et al.
US 9,935,190 B29,935,190 B2 4/2018 Wu et al.
US 10,416,504 B210,416,504 B2 * 9/2019 Hatsumi........... G02F 1/134363examiner
US 10,950,598 B210,950,598 B2 3/2021 Boles et al.
US 11,056,483 B211,056,483 B2 * 7/2021 Boles.................. H01L 27/0629examiner
US 2002/0139971 A12002/0139971 A1 10/2002 Eda
US 2003/0141518 A12003/0141518 A1 7/2003 Yokogawa et al.
US 2005/0145851 A12005/0145851 A1 7/2005 Johnson et al.
US 2006/0249750 A12006/0249750 A1 11/2006 Johnson et al.
US 2007/0018199 A12007/0018199 A1 1/2007 Sheppard et al.
US 2007/0126067 A12007/0126067 A1 6/2007 Hattendorf et al.
US 2008/0169474 A12008/0169474 A1 7/2008 Sheppard
US 2008/0265379 A12008/0265379 A1 10/2008 Brandes et al.
US 2008/0265739 A12008/0265739 A1 10/2008 Yokosawa
US 2008/0308813 A12008/0308813 A1 12/2008 Suh et al.
US 2009/0026498 A12009/0026498 A1 1/2009 Matsuda
US 2009/0267078 A12009/0267078 A1 10/2009 Mishra et al.
US 2010/0019279 A12010/0019279 A1 1/2010 Chen et al.
US 2010/0117146 A12010/0117146 A1 5/2010 Ikeda et al.
US 2010/0164062 A12010/0164062 A1 7/2010 Wang et al.
US 2011/0049526 A12011/0049526 A1 3/2011 Chu et al.
US 2012/0223320 A12012/0223320 A1 9/2012 Dora
US 2013/0043517 A12013/0043517 A1 2/2013 Yin et al.
US 2014/0103357 A12014/0103357 A1 4/2014 Decoutere et al.
US 2014/0159116 A12014/0159116 A1 6/2014 Briere et al.
US 2014/0231823 A12014/0231823 A1 8/2014 Chowdhury et al.
US 2014/0306235 A12014/0306235 A1 10/2014 Decoutere et al.
US 2015/0034958 A12015/0034958 A1 2/2015 Wong et al.
US 2015/0060876 A12015/0060876 A1 3/2015 Xing et al.
US 2015/0294984 A12015/0294984 A1 10/2015 Cheng et al.
US 2015/0295074 A12015/0295074 A1 10/2015 Ozaki et al.
US 2015/0303291 A12015/0303291 A1 10/2015 Makiyama et al.
US 2016/0086938 A12016/0086938 A1 3/2016 Kinzer
US 2016/0155674 A12016/0155674 A1 6/2016 Cho et al.
US 2016/0190298 A12016/0190298 A1 6/2016 Wu et al.
US 2016/0233235 A12016/0233235 A1 8/2016 Miyairi et al.
US 2016/0351092 A12016/0351092 A1 12/2016 Chen et al.
US 2017/0133500 A12017/0133500 A1 5/2017 Etou et al.
US 2017/0301780 A12017/0301780 A1 10/2017 Boles et al.
US 2017/0301781 A12017/0301781 A1 10/2017 Boles et al.
US 2017/0301798 A12017/0301798 A1 10/2017 Kaleta et al.
US 2017/0301799 A12017/0301799 A1 10/2017 Boles et al.
US 2017/0317202 A12017/0317202 A1 11/2017 Green et al.
US 2017/0338171 A12017/0338171 A1 11/2017 Cho et al.
US 2017/0345812 A12017/0345812 A1 11/2017 Chou et al.
US 2018/0175268 A12018/0175268 A1 6/2018 Moon et al.
US 2018/0248009 A12018/0248009 A1 8/2018 Wong et al.
US 2018/0295683 A12018/0295683 A1 10/2018 Tung et al.
US 2019/0229114 A12019/0229114 A1 7/2019 Boles et al.
US 2019/0229115 A12019/0229115 A1 7/2019 Boles et al.
US 2019/0341480 A12019/0341480 A1 11/2019 Boles et al.
US 2021/0327886 A12021/0327886 A1 10/2021 Roig-Guitart et al.
Cited non-patent literature · 4
International Search Report for Application No. PCT/US2017/027779 dated Nov. 29, 2017.
Written Opinion of the ISA for Application No. PCT/US2017/027779 dated May 8, 2018. Ch. II International Preliminary Report on Patentability for Inter- national Application No. PCT/US2017/027779, dated Aug. 9, 2018. International Search Report for Application No. PCT/US2017/027780 dated Dec. 21, 2017. Written Opinion of the ISA for Application No. PCT/US2017/027780 dated May 30, 2018. Ch. II International Preliminary Report on Patentability for Inter- national Application No. PCT/US2017/027780, dated Jul. 24, 2018.
Tangsheng et al., AlGaN/GaN MIS HEMT with AIN Dielectric. GaAs Mantech Conf Proc. 2006: 227-30.
Tsou et al., 2.07-kV AlGaN/GaN Schottky Barrier Diodes on Silicon With High Baliga’s Figure-of-Merit. IEEE Electron Device Letters. Jan. 2016;37(1):70-3. International Search Report and Written Opinion for PCT/US2021/024375 dated Jun. 17, 2021. Non-Final Office Action for U.S. Appl. No. 17/181,613 dated Sep. 23, 2022. Non-Final Office Action for U.S. Appl. No. 17/213,900 dated Jul. 8, 2022.
material glasssubstrate glasscharacterization FET transportmaterial GaN
Sisubstrate (highly doped silicon or intrinsic silicon)
electrically-insulating dielectric material
Insulating Region Fill Material
silicon
Si
First Semiconductor Material (Base Elemental Composition)
Intrinsic Semiconductor Layer Underlying GaN DeviceDoped Substrate On Which GaN Epitaxial Layers Are Grown
gallium-nitride material
GaN
Second Semiconductor Material For Transistor
HEMT Active Layers
glass
Electrically-Insulating Dielectric Material
GaN
2
Cavity Etch And Fill
Step 2
Process details
steps:etching a cavity in a third region of the wafer, covering second semiconductor material with protective layer, filling cavity with electrically-insulating material under pressure, planarizing the electrically-insulating material, removing a portion of a backside of the wafer to expose the electrically-insulating material
Materials:electrically-insulating dielectric material
3
Ion Implantation And Diffusion
Step 3
Process details
notes:Highly doped region formed in intrinsic silicon by ion implantation and diffusion, or by epitaxial growth of thin highly doped silicon layer; doping density at least 5e18 cm⁻³
Materials:Si
Si
Doping Density
—
Si
Thickness
1.5–4 µm
—
Thickness
50–300 nm
—
Thickness
120–200 µm
—
Thickness
250–750 µm
—
Pressure
10–50 mTorr
—
Temperature
700–900 °C
—
Pressure
0.5–3 Torr
—
Duration
10–120 s
—
Thickness
50–200 µm
—
Thickness
10–50 µm
—
Thickness
1.5–6 µm
—
Thickness
≤ 10 µm
—
Thickness
≥ 50 µm
—
US 5,976,941 A5,976,941 A 11/1999 Boles et al.
US 6,014,064 A6,014,064 A 1/2000 Boles et al.
US 6,114,716 A6,114,716 A 9/2000 Boles et al.
US 6,150,197 A6,150,197 A 11/2000 Boles et al.
US 6,197,645 B16,197,645 B1 3/2001 Michael et al.
US 6,197,695 B16,197,695 B1 3/2001 Joly et al.
US 6,329,702 B16,329,702 B1 12/2001 Gresham et al.
US 6,379,785 B16,379,785 B1 4/2002 Ressler et al.
US 6,465,289 B16,465,289 B1 10/2002 Streit et al.
US 6,600,199 B26,600,199 B2 7/2003 Voldman et al.
US 7,026,223 B27,026,223 B2 4/2006 Goorich et al.
US 7,071,498 B27,071,498 B2 7/2006 Johnson et al.
US 7,223,441 B27,223,441 B2 5/2007 Remington, Jr. et al.
US 7,402,842 B27,402,842 B2 7/2008 Goodrich
US 7,419,892 B27,419,892 B2 9/2008 Sheppard et al.
US 7,692,263 B27,692,263 B2 4/2010 Wu et al.
US 7,709,859 B27,709,859 B2 5/2010 Smith et al.
US 7,719,091 B27,719,091 B2 5/2010 Brogle
US 7,745,848 B17,745,848 B1 6/2010 Rajagopal et al.
US 7,755,173 B27,755,173 B2 7/2010 Mondi et al.
US 7,858,456 B27,858,456 B2 12/2010 Chiola et al.
US 7,868,428 B27,868,428 B2 1/2011 Goodrich et al.
US 8,237,198 B28,237,198 B2 8/2012 Wu et al.
US 8,390,091 B28,390,091 B2 3/2013 Renaud
US 8,912,610 B28,912,610 B2 12/2014 Lin et al.
US 8,946,724 B18,946,724 B1 2/2015 Shinohara et al.
US 9,111,750 B29,111,750 B2 8/2015 Kashyap et al.
US 9,142,659 B29,142,659 B2 9/2015 Dora et al.
US 9,281,417 B19,281,417 B1 3/2016 Lin
US 9,431,551 B29,431,551 B2 8/2016 Wilhelm
US 9,515,161 B19,515,161 B1 12/2016 Shinohara et al.
US 9,559,012 B19,559,012 B1 1/2017 Chu et al.
US 9,799,760 B29,799,760 B2 10/2017 Green et al.
US 9,818,856 B29,818,856 B2 11/2017 Hoshi et al.
US 9,837,521 B29,837,521 B2 12/2017 Yamamoto et al.
US 9,837,524 B29,837,524 B2 12/2017 Miyake et al.
US 9,853,108 B29,853,108 B2 12/2017 Kawaguchi
US 9,893,174 B29,893,174 B2 2/2018 Chowdhury et al.
US 9,911,817 B29,911,817 B2 3/2018 Xia et al.
US 9,935,190 B29,935,190 B2 4/2018 Wu et al.
US 10,416,504 B210,416,504 B2 * 9/2019 Hatsumi........... G02F 1/134363examiner
US 10,950,598 B210,950,598 B2 3/2021 Boles et al.
US 11,056,483 B211,056,483 B2 * 7/2021 Boles.................. H01L 27/0629examiner
US 2002/0139971 A12002/0139971 A1 10/2002 Eda
US 2003/0141518 A12003/0141518 A1 7/2003 Yokogawa et al.
US 2005/0145851 A12005/0145851 A1 7/2005 Johnson et al.
US 2006/0249750 A12006/0249750 A1 11/2006 Johnson et al.
US 2007/0018199 A12007/0018199 A1 1/2007 Sheppard et al.
US 2007/0126067 A12007/0126067 A1 6/2007 Hattendorf et al.
US 2008/0169474 A12008/0169474 A1 7/2008 Sheppard
US 2008/0265379 A12008/0265379 A1 10/2008 Brandes et al.
US 2008/0265739 A12008/0265739 A1 10/2008 Yokosawa
US 2008/0308813 A12008/0308813 A1 12/2008 Suh et al.
US 2009/0026498 A12009/0026498 A1 1/2009 Matsuda
US 2009/0267078 A12009/0267078 A1 10/2009 Mishra et al.
US 2010/0019279 A12010/0019279 A1 1/2010 Chen et al.
US 2010/0117146 A12010/0117146 A1 5/2010 Ikeda et al.
US 2010/0164062 A12010/0164062 A1 7/2010 Wang et al.
US 2011/0049526 A12011/0049526 A1 3/2011 Chu et al.
US 2012/0223320 A12012/0223320 A1 9/2012 Dora
US 2013/0043517 A12013/0043517 A1 2/2013 Yin et al.
US 2014/0103357 A12014/0103357 A1 4/2014 Decoutere et al.
US 2014/0159116 A12014/0159116 A1 6/2014 Briere et al.
US 2014/0231823 A12014/0231823 A1 8/2014 Chowdhury et al.
US 2014/0306235 A12014/0306235 A1 10/2014 Decoutere et al.
US 2015/0034958 A12015/0034958 A1 2/2015 Wong et al.
US 2015/0060876 A12015/0060876 A1 3/2015 Xing et al.
US 2015/0294984 A12015/0294984 A1 10/2015 Cheng et al.
US 2015/0295074 A12015/0295074 A1 10/2015 Ozaki et al.
US 2015/0303291 A12015/0303291 A1 10/2015 Makiyama et al.
US 2016/0086938 A12016/0086938 A1 3/2016 Kinzer
US 2016/0155674 A12016/0155674 A1 6/2016 Cho et al.
US 2016/0190298 A12016/0190298 A1 6/2016 Wu et al.
US 2016/0233235 A12016/0233235 A1 8/2016 Miyairi et al.
US 2016/0351092 A12016/0351092 A1 12/2016 Chen et al.
US 2017/0133500 A12017/0133500 A1 5/2017 Etou et al.
US 2017/0301780 A12017/0301780 A1 10/2017 Boles et al.
US 2017/0301781 A12017/0301781 A1 10/2017 Boles et al.
US 2017/0301798 A12017/0301798 A1 10/2017 Kaleta et al.
US 2017/0301799 A12017/0301799 A1 10/2017 Boles et al.
US 2017/0317202 A12017/0317202 A1 11/2017 Green et al.
US 2017/0338171 A12017/0338171 A1 11/2017 Cho et al.
US 2017/0345812 A12017/0345812 A1 11/2017 Chou et al.
US 2018/0175268 A12018/0175268 A1 6/2018 Moon et al.
US 2018/0248009 A12018/0248009 A1 8/2018 Wong et al.
US 2018/0295683 A12018/0295683 A1 10/2018 Tung et al.
US 2019/0229114 A12019/0229114 A1 7/2019 Boles et al.
US 2019/0229115 A12019/0229115 A1 7/2019 Boles et al.
US 2019/0341480 A12019/0341480 A1 11/2019 Boles et al.
US 2021/0327886 A12021/0327886 A1 10/2021 Roig-Guitart et al.
Cited non-patent literature · 4
International Search Report for Application No. PCT/US2017/027779 dated Nov. 29, 2017.
Written Opinion of the ISA for Application No. PCT/US2017/027779 dated May 8, 2018. Ch. II International Preliminary Report on Patentability for Inter- national Application No. PCT/US2017/027779, dated Aug. 9, 2018. International Search Report for Application No. PCT/US2017/027780 dated Dec. 21, 2017. Written Opinion of the ISA for Application No. PCT/US2017/027780 dated May 30, 2018. Ch. II International Preliminary Report on Patentability for Inter- national Application No. PCT/US2017/027780, dated Jul. 24, 2018.
Tangsheng et al., AlGaN/GaN MIS HEMT with AIN Dielectric. GaAs Mantech Conf Proc. 2006: 227-30.
Tsou et al., 2.07-kV AlGaN/GaN Schottky Barrier Diodes on Silicon With High Baliga’s Figure-of-Merit. IEEE Electron Device Letters. Jan. 2016;37(1):70-3. International Search Report and Written Opinion for PCT/US2021/024375 dated Jun. 17, 2021. Non-Final Office Action for U.S. Appl. No. 17/181,613 dated Sep. 23, 2022. Non-Final Office Action for U.S. Appl. No. 17/213,900 dated Jul. 8, 2022.
material glasssubstrate glasscharacterization FET transportmaterial GaN
Sisubstrate (highly doped silicon or intrinsic silicon)
electrically-insulating dielectric material
Insulating Region Fill Material
silicon
Si
First Semiconductor Material (Base Elemental Composition)
Intrinsic Semiconductor Layer Underlying GaN DeviceDoped Substrate On Which GaN Epitaxial Layers Are Grown
gallium-nitride material
GaN
Second Semiconductor Material For Transistor
HEMT Active Layers
glass
Electrically-Insulating Dielectric Material
GaN
2
Cavity Etch And Fill
Step 2
Process details
steps:etching a cavity in a third region of the wafer, covering second semiconductor material with protective layer, filling cavity with electrically-insulating material under pressure, planarizing the electrically-insulating material, removing a portion of a backside of the wafer to expose the electrically-insulating material
Materials:electrically-insulating dielectric material
3
Ion Implantation And Diffusion
Step 3
Process details
notes:Highly doped region formed in intrinsic silicon by ion implantation and diffusion, or by epitaxial growth of thin highly doped silicon layer; doping density at least 5e18 cm⁻³
Materials:Si
Si
Doping Density
—
Si
Thickness
1.5–4 µm
—
Thickness
50–300 nm
—
Thickness
120–200 µm
—
Thickness
250–750 µm
—
Pressure
10–50 mTorr
—
Temperature
700–900 °C
—
Pressure
0.5–3 Torr
—
Duration
10–120 s
—
Thickness
50–200 µm
—
Thickness
10–50 µm
—
Thickness
1.5–6 µm
—
Thickness
≤ 10 µm
—
Thickness
≥ 50 µm
—
US 5,976,941 A5,976,941 A 11/1999 Boles et al.
US 6,014,064 A6,014,064 A 1/2000 Boles et al.
US 6,114,716 A6,114,716 A 9/2000 Boles et al.
US 6,150,197 A6,150,197 A 11/2000 Boles et al.
US 6,197,645 B16,197,645 B1 3/2001 Michael et al.
US 6,197,695 B16,197,695 B1 3/2001 Joly et al.
US 6,329,702 B16,329,702 B1 12/2001 Gresham et al.
US 6,379,785 B16,379,785 B1 4/2002 Ressler et al.
US 6,465,289 B16,465,289 B1 10/2002 Streit et al.
US 6,600,199 B26,600,199 B2 7/2003 Voldman et al.
US 7,026,223 B27,026,223 B2 4/2006 Goorich et al.
US 7,071,498 B27,071,498 B2 7/2006 Johnson et al.
US 7,223,441 B27,223,441 B2 5/2007 Remington, Jr. et al.
US 7,402,842 B27,402,842 B2 7/2008 Goodrich
US 7,419,892 B27,419,892 B2 9/2008 Sheppard et al.
US 7,692,263 B27,692,263 B2 4/2010 Wu et al.
US 7,709,859 B27,709,859 B2 5/2010 Smith et al.
US 7,719,091 B27,719,091 B2 5/2010 Brogle
US 7,745,848 B17,745,848 B1 6/2010 Rajagopal et al.
US 7,755,173 B27,755,173 B2 7/2010 Mondi et al.
US 7,858,456 B27,858,456 B2 12/2010 Chiola et al.
US 7,868,428 B27,868,428 B2 1/2011 Goodrich et al.
US 8,237,198 B28,237,198 B2 8/2012 Wu et al.
US 8,390,091 B28,390,091 B2 3/2013 Renaud
US 8,912,610 B28,912,610 B2 12/2014 Lin et al.
US 8,946,724 B18,946,724 B1 2/2015 Shinohara et al.
US 9,111,750 B29,111,750 B2 8/2015 Kashyap et al.
US 9,142,659 B29,142,659 B2 9/2015 Dora et al.
US 9,281,417 B19,281,417 B1 3/2016 Lin
US 9,431,551 B29,431,551 B2 8/2016 Wilhelm
US 9,515,161 B19,515,161 B1 12/2016 Shinohara et al.
US 9,559,012 B19,559,012 B1 1/2017 Chu et al.
US 9,799,760 B29,799,760 B2 10/2017 Green et al.
US 9,818,856 B29,818,856 B2 11/2017 Hoshi et al.
US 9,837,521 B29,837,521 B2 12/2017 Yamamoto et al.
US 9,837,524 B29,837,524 B2 12/2017 Miyake et al.
US 9,853,108 B29,853,108 B2 12/2017 Kawaguchi
US 9,893,174 B29,893,174 B2 2/2018 Chowdhury et al.
US 9,911,817 B29,911,817 B2 3/2018 Xia et al.
US 9,935,190 B29,935,190 B2 4/2018 Wu et al.
US 10,416,504 B210,416,504 B2 * 9/2019 Hatsumi........... G02F 1/134363examiner
US 10,950,598 B210,950,598 B2 3/2021 Boles et al.
US 11,056,483 B211,056,483 B2 * 7/2021 Boles.................. H01L 27/0629examiner
US 2002/0139971 A12002/0139971 A1 10/2002 Eda
US 2003/0141518 A12003/0141518 A1 7/2003 Yokogawa et al.
US 2005/0145851 A12005/0145851 A1 7/2005 Johnson et al.
US 2006/0249750 A12006/0249750 A1 11/2006 Johnson et al.
US 2007/0018199 A12007/0018199 A1 1/2007 Sheppard et al.
US 2007/0126067 A12007/0126067 A1 6/2007 Hattendorf et al.
US 2008/0169474 A12008/0169474 A1 7/2008 Sheppard
US 2008/0265379 A12008/0265379 A1 10/2008 Brandes et al.
US 2008/0265739 A12008/0265739 A1 10/2008 Yokosawa
US 2008/0308813 A12008/0308813 A1 12/2008 Suh et al.
US 2009/0026498 A12009/0026498 A1 1/2009 Matsuda
US 2009/0267078 A12009/0267078 A1 10/2009 Mishra et al.
US 2010/0019279 A12010/0019279 A1 1/2010 Chen et al.
US 2010/0117146 A12010/0117146 A1 5/2010 Ikeda et al.
US 2010/0164062 A12010/0164062 A1 7/2010 Wang et al.
US 2011/0049526 A12011/0049526 A1 3/2011 Chu et al.
US 2012/0223320 A12012/0223320 A1 9/2012 Dora
US 2013/0043517 A12013/0043517 A1 2/2013 Yin et al.
US 2014/0103357 A12014/0103357 A1 4/2014 Decoutere et al.
US 2014/0159116 A12014/0159116 A1 6/2014 Briere et al.
US 2014/0231823 A12014/0231823 A1 8/2014 Chowdhury et al.
US 2014/0306235 A12014/0306235 A1 10/2014 Decoutere et al.
US 2015/0034958 A12015/0034958 A1 2/2015 Wong et al.
US 2015/0060876 A12015/0060876 A1 3/2015 Xing et al.
US 2015/0294984 A12015/0294984 A1 10/2015 Cheng et al.
US 2015/0295074 A12015/0295074 A1 10/2015 Ozaki et al.
US 2015/0303291 A12015/0303291 A1 10/2015 Makiyama et al.
US 2016/0086938 A12016/0086938 A1 3/2016 Kinzer
US 2016/0155674 A12016/0155674 A1 6/2016 Cho et al.
US 2016/0190298 A12016/0190298 A1 6/2016 Wu et al.
US 2016/0233235 A12016/0233235 A1 8/2016 Miyairi et al.
US 2016/0351092 A12016/0351092 A1 12/2016 Chen et al.
US 2017/0133500 A12017/0133500 A1 5/2017 Etou et al.
US 2017/0301780 A12017/0301780 A1 10/2017 Boles et al.
US 2017/0301781 A12017/0301781 A1 10/2017 Boles et al.
US 2017/0301798 A12017/0301798 A1 10/2017 Kaleta et al.
US 2017/0301799 A12017/0301799 A1 10/2017 Boles et al.
US 2017/0317202 A12017/0317202 A1 11/2017 Green et al.
US 2017/0338171 A12017/0338171 A1 11/2017 Cho et al.
US 2017/0345812 A12017/0345812 A1 11/2017 Chou et al.
US 2018/0175268 A12018/0175268 A1 6/2018 Moon et al.
US 2018/0248009 A12018/0248009 A1 8/2018 Wong et al.
US 2018/0295683 A12018/0295683 A1 10/2018 Tung et al.
US 2019/0229114 A12019/0229114 A1 7/2019 Boles et al.
US 2019/0229115 A12019/0229115 A1 7/2019 Boles et al.
US 2019/0341480 A12019/0341480 A1 11/2019 Boles et al.
US 2021/0327886 A12021/0327886 A1 10/2021 Roig-Guitart et al.
Cited non-patent literature · 4
International Search Report for Application No. PCT/US2017/027779 dated Nov. 29, 2017.
Written Opinion of the ISA for Application No. PCT/US2017/027779 dated May 8, 2018. Ch. II International Preliminary Report on Patentability for Inter- national Application No. PCT/US2017/027779, dated Aug. 9, 2018. International Search Report for Application No. PCT/US2017/027780 dated Dec. 21, 2017. Written Opinion of the ISA for Application No. PCT/US2017/027780 dated May 30, 2018. Ch. II International Preliminary Report on Patentability for Inter- national Application No. PCT/US2017/027780, dated Jul. 24, 2018.
Tangsheng et al., AlGaN/GaN MIS HEMT with AIN Dielectric. GaAs Mantech Conf Proc. 2006: 227-30.
Tsou et al., 2.07-kV AlGaN/GaN Schottky Barrier Diodes on Silicon With High Baliga’s Figure-of-Merit. IEEE Electron Device Letters. Jan. 2016;37(1):70-3. International Search Report and Written Opinion for PCT/US2021/024375 dated Jun. 17, 2021. Non-Final Office Action for U.S. Appl. No. 17/181,613 dated Sep. 23, 2022. Non-Final Office Action for U.S. Appl. No. 17/213,900 dated Jul. 8, 2022.
material glasssubstrate glasscharacterization FET transportmaterial GaN
Sisubstrate (highly doped silicon or intrinsic silicon)
electrically-insulating dielectric material
Insulating Region Fill Material
silicon
Si
First Semiconductor Material (Base Elemental Composition)
Intrinsic Semiconductor Layer Underlying GaN DeviceDoped Substrate On Which GaN Epitaxial Layers Are Grown
gallium-nitride material
GaN
Second Semiconductor Material For Transistor
HEMT Active Layers
glass
Electrically-Insulating Dielectric Material
GaN
2
Cavity Etch And Fill
Step 2
Process details
steps:etching a cavity in a third region of the wafer, covering second semiconductor material with protective layer, filling cavity with electrically-insulating material under pressure, planarizing the electrically-insulating material, removing a portion of a backside of the wafer to expose the electrically-insulating material
Materials:electrically-insulating dielectric material
3
Ion Implantation And Diffusion
Step 3
Process details
notes:Highly doped region formed in intrinsic silicon by ion implantation and diffusion, or by epitaxial growth of thin highly doped silicon layer; doping density at least 5e18 cm⁻³
Materials:Si
Si
Doping Density
—
Si
Thickness
1.5–4 µm
—
Thickness
50–300 nm
—
Thickness
120–200 µm
—
Thickness
250–750 µm
—
Pressure
10–50 mTorr
—
Temperature
700–900 °C
—
Pressure
0.5–3 Torr
—
Duration
10–120 s
—
Thickness
50–200 µm
—
Thickness
10–50 µm
—
Thickness
1.5–6 µm
—
Thickness
≤ 10 µm
—
Thickness
≥ 50 µm
—
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material glasssubstrate glasscharacterization FET transportmaterial GaN