US5125557A
Expired / Lapsed
US
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Ceramics bonded product and method of producing the same
Assignee: Toshiba Corp
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Filing: 1991-07-01
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Granted: 1992-06-30
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Expires: 2011-07-01
Abstract
Abstract Disclosed is a ceramics bonded product, which comprises a ceramics sintered body bonded to another ceramics sintered body or a metal member through a ductile metal and a group IVa transition metal nitride interposed therebetween. Also disclosed is a method of producing a ceramics bonded product, which comprises bonding a ceramics sintered body and another ceramics sintered body or a metal member by allowing a ductile metal and a group IVa transition metal nitride to exist therebetween.
Inventors
- 👤 Shun-ichiro Tanaka
- 👤 Kazuo Ikeda
- 👤 Akio Sayano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:37
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B37/003; C04B37/006; C04B2235/00; C04B2235/65; C04B2235/658; C04B2235/6581; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/122; C04B2237/124; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/36; C04B2237/366; C04B2237/368; C04B2237/40; C04B2237/407; C04B2237/50; C04B2237/59; C04B2237/592; C04B2237/64; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K3/00; H05K3/38
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
141 words
A process for producing a bonded multilayer product comprising the steps of: providing a first body comprising a first ceramic sintered material which contains nitrogen; providing at least a second body bondable to said first body, wherein said second body is comprised of a second ceramic sintered material or a metal; applying a layer comprised of titanium or a titanium compound to said first body and said second body, respectively; forming a composite wherein (i) the layer applied to said first body faces the layer applied to said second body and (ii) a copper or copper alloy foil is interposed therebetween; and heating said composite at a temperature not lower than the melting point of each of said layers, so as to cause nitrogen in said first body to react with said layer applied thereto, thereby effecting bonding of said composite.
Claim 2
Dependent Claim
141 words
A process for producing a bonded multilayer product comprising the steps of: providing a first body comprising a first ceramic sintered material which contains nitrogen; providing at least a second body bondable to said first body, wherein said second body is comprised of a second ceramic sintered material or a metal; applying a layer comprised of titanium or a titanium compound to said first body and said second body, respectively; forming a composite wherein (i) the layer applied to said first body faces the layer applied to said second body and (ii) a copper or copper alloy foil is interposed therebetween; and heating said composite at a temperature not lower than the melting point of each of said layers, so as to cause nitrogen in said first body to react with said layer applied thereto, thereby effecting bonding of said composite.
Claim 3
Dependent Claim
139 words
A process for producing a bonded multilayer product comprising the steps of: providing a first body comprising a nitrogen-containing ceramic; providing at least a second body bondable to said first body, said second body comprising a second ceramic body or a metal member; forming a compact comprising copper or copper alloy powder; applying a layer comprised of titanium or a titanium compound to said first body and said second body, respectively; forming a composite wherein (i) the layer applied to said first body faces the layer applied to said second body and (ii) said copper compact is interposed therebetween; and heating said composite at a temperature not lower than the melting point of each of said layers, so as to cause nitrogen in said first body to react with said layer applied thereto, thereby effecting bonding of said composite.
Claim 4
Dependent Claim
139 words
A process for producing a bonded multilayer product comprising the steps of: providing a first body comprising a nitrogen-containing ceramic; providing at least a second body bondable to said first body, said second body comprising a second ceramic body or a metal member; forming a compact comprising copper or copper alloy powder; applying a layer comprised of titanium or a titanium compound to said first body and said second body, respectively; forming a composite wherein (i) the layer applied to said first body faces the layer applied to said second body and (ii) said copper compact is interposed therebetween; and heating said composite at a temperature not lower than the melting point of each of said layers, so as to cause nitrogen in said first body to react with said layer applied thereto, thereby effecting bonding of said composite.
Claim 5
Dependent Claim
112 words
A process for producing a bonded multilayer product, comprising the steps of: providing at least one ceramic body containing nitrogen and at least one copper or alloy member to be bonded together; forming a bonding layer between said ceramic body and said copper member, said bonding layer comprising titanium or a titanium compound such that said ceramic body, said copper or copper alloy member and said bonding layer comprise a multilayer structure; and heating said multilayer structure at a temperature not lower than the melting point of said bonding layer so as to react nitrogen from said ceramic body with titanium and bond said multilayer structure to form said bonded multilayer product.
Claim 6
Dependent Claim
112 words
A process for producing a bonded multilayer product, comprising the steps of: providing at least one ceramic body containing nitrogen and at least one copper or alloy member to be bonded together; forming a bonding layer between said ceramic body and said copper member, said bonding layer comprising titanium or a titanium compound such that said ceramic body, said copper or copper alloy member and said bonding layer comprise a multilayer structure; and heating said multilayer structure at a temperature not lower than the melting point of said bonding layer so as to react nitrogen from said ceramic body with titanium and bond said multilayer structure to form said bonded multilayer product.
Claim 7
Dependent Claim
19 words
A process according to claim 1, wherein said first and second bodies each comprise a nitride ceramics sintered body.
Claim 8
Dependent Claim
47 words
A process according to claim 1, wherein said applying step comprises: preparing a slurry comprising an organic solvent and a powder of said titanium or titanium compound; coating said slurry on said first body and said second body; and heat drying said coating to form said layer.
Claim 9
Dependent Claim
17 words
A process according to claim 1, wherein said temperature is not lower than about 1050 degree C.
Claim 10
Dependent Claim
18 words
A process according to claim 1, wherein said heating is done in a vacuum or argon gas atmosphere.
Claim 11
Dependent Claim
19 words
A process according to claim 2, wherein said first and second bodies each comprise a nitride ceramics sintered body.
Claim 12
Dependent Claim
47 words
A process according to claim 2, wherein said applying step comprises: preparing a slurring comprising an organic solvent and a powder of said titanium or titanium compound; coating said slurry on said first body and said second body; and heat drying said coating to form said layer.
Claim 13
Dependent Claim
17 words
A process according to claim 2, wherein said temperature is not lower than about 1050 degree C.
Claim 14
Dependent Claim
17 words
A process according to claim 2, wherein said heating is done in vacuum or argon gas atmosphere.
Claim 15
Dependent Claim
44 words
A process according to claim 3, wherein said forming step comprises: preparing a slurry comprising an organic solvent and a powder of said titanium or titanium compound; coating said slurry on said ceramic body; and heat drying said coating to form said bonding layer.
Claim 16
Dependent Claim
24 words
A process according to claim 3, wherein said forming step comprises inserting a metallic titanium member between said ceramic body and said copper member.
Claim 17
Dependent Claim
17 words
A process according to claim 3, wherein said temperature is not lower than about 1050 degree C.
Claim 18
Dependent Claim
18 words
A process according to claim 3, wherein said heating is done in a vacuum or argon gas atmosphere.
Claim 19
Dependent Claim
34 words
A process according to claim 3, wherein said bonding layer is formed by disposing on said copper or copper alloy member a coating of titanium in the form of a plurality of discontinuous dots.
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| 7.5 Years (Year 8) | 1999-06-30 | 1999-12-30 | 2000-06-30 | $3760.00 | Window Closed / Lapsed |
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