Patent
Atlas literature
Patent
US 11,633,946 B2Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 740 13 Example 4 477 1062 15 Example 5 489 1067 15 Example 6 512 1070 16 It can be seen from the above table that: There is no significant difference in …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A fabrication method of a hexagonal boron nitride (h-BN)-based thermally-conductive composite film, com-prising the following steps: S1. attaching a first adhesive layer to an h-BN film carried on a carrier film, and separating the h-BN film from the carrier film to obtain a first resulting film, wherein an adhesive layer side of the first resulting film is defined as a first side and an h-BN film side of the first resulting film is defined as a second side; S2. attaching a second adhesive layer to the second side of the first resulting film obtained in S₁ to obtain a second resulting film; S3. pasting a high-power graphite film to the h-BN film side of the second resulting film obtained in S₂ to obtain a third resulting film; S4. attaching a third adhesive layer to a graphite film side of the third resulting film obtained in S₃ to obtain a fourth resulting film; and S5. shaping the fourth resulting film obtained in S₄ according to a required size to obtain the h-BN-based thermally-conductive composite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the first adhesive layer in S₁ comprises a first single-sided adhesive tape with a polyethylene terephthalate (PET) film or a first double-sided adhesive tape with the PET film; the second adhesive layer in S₂ comprises a second single-sided adhesive tape with the PET film or a second double-sided adhesive tape with the PET film; and the third adhesive layer in S₄ comprises a third single-sided adhesive tape with the PET film or a third double-sided adhesive tape with the PET film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S2, the second adhesive layer attached to the second side comprises a single-sided or double-sided adhesive tape with a PET film, and after the second adhesive layer is attached, the PET film on the single-sided or double-sided adhesive tape at the second side is separated.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the high-power graphite film in S₃ has a PET carrier film or does not have a PET carrier film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S3, when the high-power graphite film has a PET carrier film, after the high-power graphite film is pasted, the PET carrier film is separated from the high-power graphite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein a PET film is exposed at each of the first adhesive layer and the third adhesive layer of the h-BN-based thermally-con-ductive composite film obtained in S5, wherein the PET film serves as a protective layer, and the PET film at each of the adhesive layer side and the h-BN film side of the h-BN-based thermally-conductive composite film are separated prior to using the h-BN-based thermally conductive com-posite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein each of the first adhesive layer, the second adhesive layer, and the third adhesive layer comprises a double-sided adhe-sive tape with a PET film; wherein the second adhesive layer B₂ of the first resulting film has a second PET film with a peeling force of 0.2 to 2.2 g/(25 mm); the third adhesive layer of the high-power graphite film has a third PET film with a peeling force of 2.5 to 4.5 g/(25 mm); and the first adhesive layer of the composite film has a first PET film with a peeling force of 0.2 to 5 g/(25 mm).
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the high-power graphite film is pasted by a rolling process with a pressure of 10 MPa to 20 MPa and a roll speed of 0.1 m/s to 0.6 m/s.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein a thickness l2 of the high-power graphite film is determined by: l1 l2 = a×m×l1 ×, l1 + l2 wherein l1 represents a thickness of the h-BN film in S1; a represents an adjustment parameter, and the adjust-ment parameter a is a constant of 4; and m represents a correction coefficient, and the correction coefficient m is a constant of 0.3 to 7.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S3, before the high-power graphite film is pasted to the h-BN film side of the second resulting film, the second resulting film is subjected to a constant-temperature heat treatment at 42° C. to 47° C.; and a method for determining an end time point of the constant-temperature heat treatment is as follows: when 0.03<∆u(i)<0.09, Tw TzTI + TI 2 + TwTI Tz + 2Tw Δu(i) = Ki f (i-2) + f (i)-f (i-1), Tz f TzTI Tz wherein ∆u(i) represents a weight change of the second resulting film within a time interval corresponding to two concentration tests; Ki represents a constant of 8 to 13; ù(i) represents a deviation of an i-th sampling, ù(i−1) represents a deviation of an (i−1)-th sampling, and ù(i−2) represents a deviation of an (i−2)-th sampling; Tz represents a sampling period of 3 seconds to 5 seconds; TI represents an integration time of 20 seconds to 50 seconds; and Tw represents a differential time of 20 seconds to 70 seconds. ∗ ∗ ∗ ∗ ∗
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using coated adhesive layers (no PET film stripping required), a high-power graphite film without PET carrier film, and rolling process at 20 MPa and 0.6 m/s. h-BN film thickness: 50 µm; graphite film thickness: 50 µm.
4 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using double-sided adhesive tape with PET film for all adhesive layers. PET film on double-sided tape at side B separated after S2. High-power graphite film had PET carrier film which was separated after pasting in S3. PET protective films exposed at sides A and B of final composite. Carrier film PET peeling force: 2.2 g/(25 mm); graphite film PET peeling force: 4.5 g/(25 mm); double-sided tape PET peeling force: 5 g/(25 mm). Rolling at 20 MPa, 0.6 m/s. h-BN film: 50 µm; graphite film: 50 µm.
4 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using double-sided adhesive tape with PET film for all adhesive layers. PET film separated after S2. High-power graphite film had PET carrier film which was separated after pasting. PET protective films exposed at sides A and B of final composite.
Layer stacks claimed or described, ordered top of device to substrate.
h-BN-based thermally-conductive composite film
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 3–5 seconds | — |
Duration | 20–50 seconds |
Patents and literature cited by this patent (applicant and examiner references).
Cited patents · 7
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,633,946 B2Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 740 13 Example 4 477 1062 15 Example 5 489 1067 15 Example 6 512 1070 16 It can be seen from the above table that: There is no significant difference in …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A fabrication method of a hexagonal boron nitride (h-BN)-based thermally-conductive composite film, com-prising the following steps: S1. attaching a first adhesive layer to an h-BN film carried on a carrier film, and separating the h-BN film from the carrier film to obtain a first resulting film, wherein an adhesive layer side of the first resulting film is defined as a first side and an h-BN film side of the first resulting film is defined as a second side; S2. attaching a second adhesive layer to the second side of the first resulting film obtained in S₁ to obtain a second resulting film; S3. pasting a high-power graphite film to the h-BN film side of the second resulting film obtained in S₂ to obtain a third resulting film; S4. attaching a third adhesive layer to a graphite film side of the third resulting film obtained in S₃ to obtain a fourth resulting film; and S5. shaping the fourth resulting film obtained in S₄ according to a required size to obtain the h-BN-based thermally-conductive composite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the first adhesive layer in S₁ comprises a first single-sided adhesive tape with a polyethylene terephthalate (PET) film or a first double-sided adhesive tape with the PET film; the second adhesive layer in S₂ comprises a second single-sided adhesive tape with the PET film or a second double-sided adhesive tape with the PET film; and the third adhesive layer in S₄ comprises a third single-sided adhesive tape with the PET film or a third double-sided adhesive tape with the PET film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S2, the second adhesive layer attached to the second side comprises a single-sided or double-sided adhesive tape with a PET film, and after the second adhesive layer is attached, the PET film on the single-sided or double-sided adhesive tape at the second side is separated.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the high-power graphite film in S₃ has a PET carrier film or does not have a PET carrier film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S3, when the high-power graphite film has a PET carrier film, after the high-power graphite film is pasted, the PET carrier film is separated from the high-power graphite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein a PET film is exposed at each of the first adhesive layer and the third adhesive layer of the h-BN-based thermally-con-ductive composite film obtained in S5, wherein the PET film serves as a protective layer, and the PET film at each of the adhesive layer side and the h-BN film side of the h-BN-based thermally-conductive composite film are separated prior to using the h-BN-based thermally conductive com-posite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein each of the first adhesive layer, the second adhesive layer, and the third adhesive layer comprises a double-sided adhe-sive tape with a PET film; wherein the second adhesive layer B₂ of the first resulting film has a second PET film with a peeling force of 0.2 to 2.2 g/(25 mm); the third adhesive layer of the high-power graphite film has a third PET film with a peeling force of 2.5 to 4.5 g/(25 mm); and the first adhesive layer of the composite film has a first PET film with a peeling force of 0.2 to 5 g/(25 mm).
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the high-power graphite film is pasted by a rolling process with a pressure of 10 MPa to 20 MPa and a roll speed of 0.1 m/s to 0.6 m/s.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein a thickness l2 of the high-power graphite film is determined by: l1 l2 = a×m×l1 ×, l1 + l2 wherein l1 represents a thickness of the h-BN film in S1; a represents an adjustment parameter, and the adjust-ment parameter a is a constant of 4; and m represents a correction coefficient, and the correction coefficient m is a constant of 0.3 to 7.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S3, before the high-power graphite film is pasted to the h-BN film side of the second resulting film, the second resulting film is subjected to a constant-temperature heat treatment at 42° C. to 47° C.; and a method for determining an end time point of the constant-temperature heat treatment is as follows: when 0.03<∆u(i)<0.09, Tw TzTI + TI 2 + TwTI Tz + 2Tw Δu(i) = Ki f (i-2) + f (i)-f (i-1), Tz f TzTI Tz wherein ∆u(i) represents a weight change of the second resulting film within a time interval corresponding to two concentration tests; Ki represents a constant of 8 to 13; ù(i) represents a deviation of an i-th sampling, ù(i−1) represents a deviation of an (i−1)-th sampling, and ù(i−2) represents a deviation of an (i−2)-th sampling; Tz represents a sampling period of 3 seconds to 5 seconds; TI represents an integration time of 20 seconds to 50 seconds; and Tw represents a differential time of 20 seconds to 70 seconds. ∗ ∗ ∗ ∗ ∗
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using coated adhesive layers (no PET film stripping required), a high-power graphite film without PET carrier film, and rolling process at 20 MPa and 0.6 m/s. h-BN film thickness: 50 µm; graphite film thickness: 50 µm.
4 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using double-sided adhesive tape with PET film for all adhesive layers. PET film on double-sided tape at side B separated after S2. High-power graphite film had PET carrier film which was separated after pasting in S3. PET protective films exposed at sides A and B of final composite. Carrier film PET peeling force: 2.2 g/(25 mm); graphite film PET peeling force: 4.5 g/(25 mm); double-sided tape PET peeling force: 5 g/(25 mm). Rolling at 20 MPa, 0.6 m/s. h-BN film: 50 µm; graphite film: 50 µm.
4 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using double-sided adhesive tape with PET film for all adhesive layers. PET film separated after S2. High-power graphite film had PET carrier film which was separated after pasting. PET protective films exposed at sides A and B of final composite.
Layer stacks claimed or described, ordered top of device to substrate.
h-BN-based thermally-conductive composite film
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 3–5 seconds | — |
Duration | 20–50 seconds |
Patents and literature cited by this patent (applicant and examiner references).
Cited patents · 7
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,633,946 B2Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 740 13 Example 4 477 1062 15 Example 5 489 1067 15 Example 6 512 1070 16 It can be seen from the above table that: There is no significant difference in …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A fabrication method of a hexagonal boron nitride (h-BN)-based thermally-conductive composite film, com-prising the following steps: S1. attaching a first adhesive layer to an h-BN film carried on a carrier film, and separating the h-BN film from the carrier film to obtain a first resulting film, wherein an adhesive layer side of the first resulting film is defined as a first side and an h-BN film side of the first resulting film is defined as a second side; S2. attaching a second adhesive layer to the second side of the first resulting film obtained in S₁ to obtain a second resulting film; S3. pasting a high-power graphite film to the h-BN film side of the second resulting film obtained in S₂ to obtain a third resulting film; S4. attaching a third adhesive layer to a graphite film side of the third resulting film obtained in S₃ to obtain a fourth resulting film; and S5. shaping the fourth resulting film obtained in S₄ according to a required size to obtain the h-BN-based thermally-conductive composite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the first adhesive layer in S₁ comprises a first single-sided adhesive tape with a polyethylene terephthalate (PET) film or a first double-sided adhesive tape with the PET film; the second adhesive layer in S₂ comprises a second single-sided adhesive tape with the PET film or a second double-sided adhesive tape with the PET film; and the third adhesive layer in S₄ comprises a third single-sided adhesive tape with the PET film or a third double-sided adhesive tape with the PET film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S2, the second adhesive layer attached to the second side comprises a single-sided or double-sided adhesive tape with a PET film, and after the second adhesive layer is attached, the PET film on the single-sided or double-sided adhesive tape at the second side is separated.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the high-power graphite film in S₃ has a PET carrier film or does not have a PET carrier film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S3, when the high-power graphite film has a PET carrier film, after the high-power graphite film is pasted, the PET carrier film is separated from the high-power graphite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein a PET film is exposed at each of the first adhesive layer and the third adhesive layer of the h-BN-based thermally-con-ductive composite film obtained in S5, wherein the PET film serves as a protective layer, and the PET film at each of the adhesive layer side and the h-BN film side of the h-BN-based thermally-conductive composite film are separated prior to using the h-BN-based thermally conductive com-posite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein each of the first adhesive layer, the second adhesive layer, and the third adhesive layer comprises a double-sided adhe-sive tape with a PET film; wherein the second adhesive layer B₂ of the first resulting film has a second PET film with a peeling force of 0.2 to 2.2 g/(25 mm); the third adhesive layer of the high-power graphite film has a third PET film with a peeling force of 2.5 to 4.5 g/(25 mm); and the first adhesive layer of the composite film has a first PET film with a peeling force of 0.2 to 5 g/(25 mm).
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the high-power graphite film is pasted by a rolling process with a pressure of 10 MPa to 20 MPa and a roll speed of 0.1 m/s to 0.6 m/s.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein a thickness l2 of the high-power graphite film is determined by: l1 l2 = a×m×l1 ×, l1 + l2 wherein l1 represents a thickness of the h-BN film in S1; a represents an adjustment parameter, and the adjust-ment parameter a is a constant of 4; and m represents a correction coefficient, and the correction coefficient m is a constant of 0.3 to 7.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S3, before the high-power graphite film is pasted to the h-BN film side of the second resulting film, the second resulting film is subjected to a constant-temperature heat treatment at 42° C. to 47° C.; and a method for determining an end time point of the constant-temperature heat treatment is as follows: when 0.03<∆u(i)<0.09, Tw TzTI + TI 2 + TwTI Tz + 2Tw Δu(i) = Ki f (i-2) + f (i)-f (i-1), Tz f TzTI Tz wherein ∆u(i) represents a weight change of the second resulting film within a time interval corresponding to two concentration tests; Ki represents a constant of 8 to 13; ù(i) represents a deviation of an i-th sampling, ù(i−1) represents a deviation of an (i−1)-th sampling, and ù(i−2) represents a deviation of an (i−2)-th sampling; Tz represents a sampling period of 3 seconds to 5 seconds; TI represents an integration time of 20 seconds to 50 seconds; and Tw represents a differential time of 20 seconds to 70 seconds. ∗ ∗ ∗ ∗ ∗
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using coated adhesive layers (no PET film stripping required), a high-power graphite film without PET carrier film, and rolling process at 20 MPa and 0.6 m/s. h-BN film thickness: 50 µm; graphite film thickness: 50 µm.
4 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using double-sided adhesive tape with PET film for all adhesive layers. PET film on double-sided tape at side B separated after S2. High-power graphite film had PET carrier film which was separated after pasting in S3. PET protective films exposed at sides A and B of final composite. Carrier film PET peeling force: 2.2 g/(25 mm); graphite film PET peeling force: 4.5 g/(25 mm); double-sided tape PET peeling force: 5 g/(25 mm). Rolling at 20 MPa, 0.6 m/s. h-BN film: 50 µm; graphite film: 50 µm.
4 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using double-sided adhesive tape with PET film for all adhesive layers. PET film separated after S2. High-power graphite film had PET carrier film which was separated after pasting. PET protective films exposed at sides A and B of final composite.
Layer stacks claimed or described, ordered top of device to substrate.
h-BN-based thermally-conductive composite film
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 3–5 seconds | — |
Duration | 20–50 seconds |
Patents and literature cited by this patent (applicant and examiner references).
Cited patents · 7
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 11,633,946 B2Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 740 13 Example 4 477 1062 15 Example 5 489 1067 15 Example 6 512 1070 16 It can be seen from the above table that: There is no significant difference in …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A fabrication method of a hexagonal boron nitride (h-BN)-based thermally-conductive composite film, com-prising the following steps: S1. attaching a first adhesive layer to an h-BN film carried on a carrier film, and separating the h-BN film from the carrier film to obtain a first resulting film, wherein an adhesive layer side of the first resulting film is defined as a first side and an h-BN film side of the first resulting film is defined as a second side; S2. attaching a second adhesive layer to the second side of the first resulting film obtained in S₁ to obtain a second resulting film; S3. pasting a high-power graphite film to the h-BN film side of the second resulting film obtained in S₂ to obtain a third resulting film; S4. attaching a third adhesive layer to a graphite film side of the third resulting film obtained in S₃ to obtain a fourth resulting film; and S5. shaping the fourth resulting film obtained in S₄ according to a required size to obtain the h-BN-based thermally-conductive composite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the first adhesive layer in S₁ comprises a first single-sided adhesive tape with a polyethylene terephthalate (PET) film or a first double-sided adhesive tape with the PET film; the second adhesive layer in S₂ comprises a second single-sided adhesive tape with the PET film or a second double-sided adhesive tape with the PET film; and the third adhesive layer in S₄ comprises a third single-sided adhesive tape with the PET film or a third double-sided adhesive tape with the PET film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S2, the second adhesive layer attached to the second side comprises a single-sided or double-sided adhesive tape with a PET film, and after the second adhesive layer is attached, the PET film on the single-sided or double-sided adhesive tape at the second side is separated.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the high-power graphite film in S₃ has a PET carrier film or does not have a PET carrier film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S3, when the high-power graphite film has a PET carrier film, after the high-power graphite film is pasted, the PET carrier film is separated from the high-power graphite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein a PET film is exposed at each of the first adhesive layer and the third adhesive layer of the h-BN-based thermally-con-ductive composite film obtained in S5, wherein the PET film serves as a protective layer, and the PET film at each of the adhesive layer side and the h-BN film side of the h-BN-based thermally-conductive composite film are separated prior to using the h-BN-based thermally conductive com-posite film.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein each of the first adhesive layer, the second adhesive layer, and the third adhesive layer comprises a double-sided adhe-sive tape with a PET film; wherein the second adhesive layer B₂ of the first resulting film has a second PET film with a peeling force of 0.2 to 2.2 g/(25 mm); the third adhesive layer of the high-power graphite film has a third PET film with a peeling force of 2.5 to 4.5 g/(25 mm); and the first adhesive layer of the composite film has a first PET film with a peeling force of 0.2 to 5 g/(25 mm).
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein the high-power graphite film is pasted by a rolling process with a pressure of 10 MPa to 20 MPa and a roll speed of 0.1 m/s to 0.6 m/s.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein a thickness l2 of the high-power graphite film is determined by: l1 l2 = a×m×l1 ×, l1 + l2 wherein l1 represents a thickness of the h-BN film in S1; a represents an adjustment parameter, and the adjust-ment parameter a is a constant of 4; and m represents a correction coefficient, and the correction coefficient m is a constant of 0.3 to 7.
The fabrication method of the h-BN-based thermally-conductive composite film according to claim 1, wherein in S3, before the high-power graphite film is pasted to the h-BN film side of the second resulting film, the second resulting film is subjected to a constant-temperature heat treatment at 42° C. to 47° C.; and a method for determining an end time point of the constant-temperature heat treatment is as follows: when 0.03<∆u(i)<0.09, Tw TzTI + TI 2 + TwTI Tz + 2Tw Δu(i) = Ki f (i-2) + f (i)-f (i-1), Tz f TzTI Tz wherein ∆u(i) represents a weight change of the second resulting film within a time interval corresponding to two concentration tests; Ki represents a constant of 8 to 13; ù(i) represents a deviation of an i-th sampling, ù(i−1) represents a deviation of an (i−1)-th sampling, and ù(i−2) represents a deviation of an (i−2)-th sampling; Tz represents a sampling period of 3 seconds to 5 seconds; TI represents an integration time of 20 seconds to 50 seconds; and Tw represents a differential time of 20 seconds to 70 seconds. ∗ ∗ ∗ ∗ ∗
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using coated adhesive layers (no PET film stripping required), a high-power graphite film without PET carrier film, and rolling process at 20 MPa and 0.6 m/s. h-BN film thickness: 50 µm; graphite film thickness: 50 µm.
4 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using double-sided adhesive tape with PET film for all adhesive layers. PET film on double-sided tape at side B separated after S2. High-power graphite film had PET carrier film which was separated after pasting in S3. PET protective films exposed at sides A and B of final composite. Carrier film PET peeling force: 2.2 g/(25 mm); graphite film PET peeling force: 4.5 g/(25 mm); double-sided tape PET peeling force: 5 g/(25 mm). Rolling at 20 MPa, 0.6 m/s. h-BN film: 50 µm; graphite film: 50 µm.
4 materials1 process step
Fabrication of an h-BN-based thermally-conductive composite film using double-sided adhesive tape with PET film for all adhesive layers. PET film separated after S2. High-power graphite film had PET carrier film which was separated after pasting. PET protective films exposed at sides A and B of final composite.
Layer stacks claimed or described, ordered top of device to substrate.
h-BN-based thermally-conductive composite film
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 3–5 seconds | — |
Duration | 20–50 seconds |
Patents and literature cited by this patent (applicant and examiner references).
Cited patents · 7
Related documents with shared materials, methods, properties, or citations.
| — |
Duration | 20–70 seconds | — |
Pressure | 10–20 MPa | — |
Temperature | 42–47 °C | — |
Thickness | 1–3 µm | — |
Thickness | 20–100 µm | — |
Thickness | 30–300 µm | — |
Cited non-patent literature · 2
| — |
Duration | 20–70 seconds | — |
Pressure | 10–20 MPa | — |
Temperature | 42–47 °C | — |
Thickness | 1–3 µm | — |
Thickness | 20–100 µm | — |
Thickness | 30–300 µm | — |
Cited non-patent literature · 2
| — |
Duration | 20–70 seconds | — |
Pressure | 10–20 MPa | — |
Temperature | 42–47 °C | — |
Thickness | 1–3 µm | — |
Thickness | 20–100 µm | — |
Thickness | 30–300 µm | — |
Cited non-patent literature · 2
| — |
Duration | 20–70 seconds | — |
Pressure | 10–20 MPa | — |
Temperature | 42–47 °C | — |
Thickness | 1–3 µm | — |
Thickness | 20–100 µm | — |
Thickness | 30–300 µm | — |
Cited non-patent literature · 2
