Patent US4713284A successfully refreshed from Google Patents.
US4713284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic coated laminate and process for producing the same
Assignee: Resonac Corp
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Filing: 1986-12-19
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Granted: 1987-12-15
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Expires: 2006-12-19
Abstract
Abstract Ceramic coated laminates for printed circuit boards produced by flame spraying a ceramic powder on a metal plate such as copper foil or a woven fabric prepreg, laminating one or two ceramic coated metal plates and woven fabric prepregs so as to place the ceramic layer between the metal plate and the prepreg, hot-pressing the laminated members, and if necessary peeling off the metal plate(s), are excellent in thermal conductivity and heat resistance.
Inventors
- 👤 Hiroshi Hasegawa
- 👤 Mitsuhiro Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:39
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/14; B32B15/04; B32B15/08; B32B15/20; B32B5/00; B32B5/02; B32B5/024; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/036; H05K3/00; H05K3/38; B32B2255/00; B32B2255/20; B32B2305/00; B32B2305/07; B32B2305/076; B32B2305/10; B32B2305/18; B32B2305/188; B32B2307/00; B32B2307/30; B32B2307/302; B32B2311/00; B32B2311/12; B32B2457/00; B32B2457/08; H05K1/0306; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/0179; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K2203/00; H05K2203/06; H05K2203/066; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/24926; Y10T442/00; Y10T442/30; Y10T442/3382; Y10T442/3415; Y10T442/3423
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
41 words
A ceramic coated laminate comprising a woven fabric prepreg layer, one or a pair of ceramic flame sprayed layers bonded to the woven fabric prepreg layer and one or a pair of copper foils bonded to the ceramic flame sprayed layers.
Claim 2
Dependent Claim
41 words
A ceramic coated laminate comprising a woven fabric prepreg layer, one or a pair of ceramic flame sprayed layers bonded to the woven fabric prepreg layer and one or a pair of copper foils bonded to the ceramic flame sprayed layers.
Claim 3
Dependent Claim
32 words
A ceramic coated laminate according to claim 1, wherein the ceramic layer is formed on a copper foil by flame spraying and molding of the ceramic coated laminate is conducted by hot-pressing.
Claim 4
Dependent Claim
49 words
A ceramic coated laminate according to claim 1, wherein the ceramic layer is formed on a woven fabric prepreg by flame spraying and molding of the ceramic coated laminate is conducted by hot-pressing using one or a pair of copper foils having an adhesive layer at an inside thereof.
Claim 5
Dependent Claim
22 words
A ceramic coated laminate according to claim 1, wherein a woven fabric in the woven fabric prepreg layer is a glass fiber.
Claim 6
Dependent Claim
22 words
A ceramic coated laminate according to claim 1, wherein a woven fabric in the woven fabric prepreg layer is an aramide fiber.
Claim 7
Dependent Claim
21 words
A ceramic coated laminate according to claim 1, wherein a resin in the woven fabric prepreg layer is an epoxy resin.
Claim 8
Dependent Claim
21 words
A ceramic coated laminate according to claim 1, wherein a resin in the woven fabric prepreg layer is a polyimide resin.
Claim 9
Dependent Claim
23 words
A ceramic coated laminate according to claim 1, wherein alumina powder is used solely or as a main component in a ceramic powder.
Claim 10
Dependent Claim
24 words
A ceramic coated laminate according to claim 1, wherein silicon carbide powder is used solely or as a main component in a ceramic powder.
Claim 11
Dependent Claim
86 words
A ceramic coated laminate produced by flame spraying a ceramic on a surface of a metal plate to form a ceramic layer thereon, sandwiching a number of woven fabric prepregs between a pair of the ceramic coated metal plates so as to contact the ceramic layers with the prepregs, or laminating a number of woven fabric prepregs on the ceramic coated metal plate so as to contact the ceramic layer with a prepreg, hot-pressing the resulting laminated members, and peeling off the metal plate or plates.
Claim 12
Dependent Claim
86 words
A ceramic coated laminate produced by flame spraying a ceramic on a surface of a metal plate to form a ceramic layer thereon, sandwiching a number of woven fabric prepregs between a pair of the ceramic coated metal plates so as to contact the ceramic layers with the prepregs, or laminating a number of woven fabric prepregs on the ceramic coated metal plate so as to contact the ceramic layer with a prepreg, hot-pressing the resulting laminated members, and peeling off the metal plate or plates.
Claim 13
Dependent Claim
21 words
A ceramic coated laminate according to claim 4, wherein a woven fabric in the woven fabric prepregs is a glass fiber.
Claim 14
Dependent Claim
19 words
A ceramic coated laminate according to claim 4, wherein a resin in the woven fabric prepregs is a polyimide.
Claim 15
Dependent Claim
23 words
A ceramic coated laminate according to claim 4, wherein allumina powder is used solely or as a main component in a ceramic powder.
Claim 16
Dependent Claim
91 words
A process for producing a ceramic coated laminate, which comprises flame spraying a ceramic powder on a surface of a metal plate to form a ceramic layer thereon, sandwiching a number of woven fabric prepregs between a pair of the ceramic coated metal plates so as to contact the ceramic layers with the prepregs, or laminating a number of woven fabric prepregs on the ceramic coated metal plate so as to contact the ceramic layer with a prepreg, hot-pressing the resulting laminated members, and peeling off the metal plate or plates.
Claim 17
Dependent Claim
91 words
A process for producing a ceramic coated laminate, which comprises flame spraying a ceramic powder on a surface of a metal plate to form a ceramic layer thereon, sandwiching a number of woven fabric prepregs between a pair of the ceramic coated metal plates so as to contact the ceramic layers with the prepregs, or laminating a number of woven fabric prepregs on the ceramic coated metal plate so as to contact the ceramic layer with a prepreg, hot-pressing the resulting laminated members, and peeling off the metal plate or plates.
Claim 18
Dependent Claim
23 words
A process according to claim 14, wherein the metal plate surface to be flame sprayed is previously subjected to a mold release treatment.
References Cited (Backward Citations)
US4501787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |