EP0092020A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Composite structure, particularly for use as a printed-circuit board
Assignee: Olin Corp
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Filing: 1983-01-20
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Granted: —
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Expires: 2003-01-20
Abstract
Abstract A composite 24 is characterized by metal or alloy component 26 having a thin refractory oxide layer 28 on a surface 30 thereof. Another metal or alloy component 32 has a thin refractory oxide 34 on its surface 36. A glass 38, having a closely matched coefficient of thermal expansion to the metal or alloy components 26 and 32, bonds the thin refractory oxide layers 28 and 34 and electrically insulates the first component from the second component whereby thermal stress between the metal or alloy components and the glass is substantially eliminated.
Inventors
- 👤 Sheldon H. Butt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 17:14
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/05; H05K1/053; H05K1/0306; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0364; H05K2201/0382; H05K2203/00; H05K2203/06; H05K2203/068; H05K3/00; H05K3/40; H05K3/42; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49126; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
110 words
A composite 24 characterized by: a first metal or alloy component 26 having a thin refractory oxide layer 28 on at least a first surface 30 thereof; a second metal or alloy component 32 having a second thin refractory oxide layer 34 on at least a first surface 36 thereof; and means 38 having a closely matched-coefficient of thermal expansion to said first and second metal or alloy components 26, 32 for bonding said first and second thin refractory oxide layers 28, 34 and for electrically insulating said first component from said second component whereby thermal stress between said metal or alloy components and said bonding means is substantially eliminated.
Claim 2
Dependent Claim
110 words
A composite 24 characterized by: a first metal or alloy component 26 having a thin refractory oxide layer 28 on at least a first surface 30 thereof; a second metal or alloy component 32 having a second thin refractory oxide layer 34 on at least a first surface 36 thereof; and means 38 having a closely matched-coefficient of thermal expansion to said first and second metal or alloy components 26, 32 for bonding said first and second thin refractory oxide layers 28, 34 and for electrically insulating said first component from said second component whereby thermal stress between said metal or alloy components and said bonding means is substantially eliminated.
Claim 3
Dependent Claim
27 words
A composite as in' claim 1 characterized in that said first and second alloy components 26, 32 comprise: 2 to 12% aluminum and the balance essentially copper.
Claim 4
Dependent Claim
26 words
A composite as in claim 2 characterized in that said alloy components comprise: 2 to 10% aluminum, 0.001 to 3% silicon and the balance essentially copper.
Claim 5
Dependent Claim
28 words
A composite as in claim 3 characterized in that said alloy component consists essentially of: 2.5 to 3.1% aluminum, 1.5 to 2.1% silicon and the balance essentially copper.
Claim 6
Dependent Claim
39 words
A composite as in claim 2 characterized in that said bonding means further includes: a glass component 38 bonded between said first and second thin refractory oxide layers 28, 34 for insulating said first component from said second component.
Claim 7
Dependent Claim
15 words
A composite as in claim 5 characterized in that said refractory oxide layers include A1203.
Claim 8
Dependent Claim
54 words
A composite as in claim 5 characterized in that said first alloy component supports and strengthens said composite, said first component further characterized by: a first copper or copper base alloy substrate 42 bonded to the second surface opposite said first surface of said first component for increasing the conductivity of said first component.
Claim 9
Dependent Claim
29 words
A composite as in claims 2 or 7 characterized in that said second copper or copper base alloy component 32 is a thin foil having an.electrical circuit pattern thereon.
Claim 10
Dependent Claim
44 words
A composite as in claim 8 characterized in that said second component further includes; a second copper or copper base alloy substrate 47 bonded to the second surface opposite said first surface of said second component for improving the conductivity of said second composite.
Claim 11
Dependent Claim
31 words
A composite as in claim 5 characterized in that said glass component 38 has a coefficient of expansion substantially the same as said first or second copper or copper base alloys.
Claim 12
Dependent Claim
33 words
A composite as in claim 5 characterized in that said first and second components each have an electrical circuit pattern thereon and said glass component provides stiffness for said first and second components.
Claim 13
Dependent Claim
32 words
A composite as in claim 11 further characterized by: conductive means 56 in said glass component extending between said first and second alloy components for electrical interconnection between the electrical circuit patterns.
Claim 14
Dependent Claim
23 words
A composite as in claim 11 further characterized by: a metallic grid means 66 bonded into said glass component for stiffening said composite.
Claim 15
Dependent Claim
34 words
A composite as in claim 13 characterized by said metallic grid means 66 being a copper or copper alloy having a thin refractory oxide layer on the surface to bond with said glass component.
Claim 16
Dependent Claim
37 words
A composite as in claim 14 further characterized by: conductive means 69 in said glass component between said first and second alloy components without contacting said grid means 66 for electrical interconnection between the electrical circuit patterns.
Claim 17
Dependent Claim
63 words
A composite as in claim 2 characterized by having at least a third copper or copper base alloy component having third and fourth thin refractory, layers on opposing wide surfaces of said at least third component, means for bonding said first and third thin refractory oxide layers and said second and fourth refractory oxide layers. to provide rigidity to the resulting multi-layer composite.
Claim 18
Dependent Claim
56 words
A composite as in claim 16 further characterized by: at least two glass components, one of said glass components being bonded between and to said first and third thin refractory oxide layers and the other of said glass components being bonded between said second and fourth thin refractory oxide layers of said second and third components.
Claim 19
Dependent Claim
28 words
A composite as in claim 17 further characterized by: metallic grid means bonded into at least one of said glass components for added stiffening of said multi-layer composite.
Claim 20
Dependent Claim
29 words
A composite as in claims 17 or 18 characterized in that said at least third copper base alloy component comprises: 2 to 12% aluminum and the balance essentially copper.
Claim 21
Dependent Claim
27 words
A composite as in claim 19 characterized in that said third alloy component comprises: 2 to 10% aluminum, 0.001 to 3% silicon and the balance essentially copper.
References Cited (Backward Citations)
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