Patent US4500611A successfully refreshed from Google Patents.
US4500611A
Expired / Lapsed
US
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Solderable layer system
Assignee: Mannesmann VDO AG
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Filing: 1981-07-22
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Granted: 1985-02-19
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Expires: 2001-07-22
Abstract
Abstract A corrosion-resistant solderable layer system is connected to an unsolderable layer, the layer system and the unsolderable layer being applied to a support and comprises a solderable layer and an anti-corrosion layer which covers the solderable layer and protects the latter against oxidation. The anti-corrosion layer is made of an oxidizable metal.
Inventors
- 👤 Friedrich W. Nickol
- 👤 Holm Baeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:30
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; B; B23; B23K; B23K1/00; B23K1/20; B23K35/00; B23K35/001; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1345; H05K2201/00; H05K2201/03; H05K2201/032; H05K2201/0326; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583; Y10T428/1259; Y10T428/12611; Y10T428/12618; Y10T428/12674; Y10T428/12681; Y10T428/12708; Y10T428/12715; Y10T428/12722; Y10T428/12986
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
In a corrosion-resistant solderable layer system, produced in a manufacturing stage of a transparent display device, said corrosion-resistant solderable layer system being connected at least indirectly to an unsolderable layer, the layer system and the unsolderable layer being applied to a support, and the layer system comprises a solderable layer and an anti-corrosion layer which covers the solderable layer and protects the latter against oxidation, the improvement in the layer system wherein the anti-corrosion layer is made of an oxidizable metal.
Claim 2
Dependent Claim
81 words
In a corrosion-resistant solderable layer system, produced in a manufacturing stage of a transparent display device, said corrosion-resistant solderable layer system being connected at least indirectly to an unsolderable layer, the layer system and the unsolderable layer being applied to a support, and the layer system comprises a solderable layer and an anti-corrosion layer which covers the solderable layer and protects the latter against oxidation, the improvement in the layer system wherein the anti-corrosion layer is made of an oxidizable metal.
Claim 3
Dependent Claim
23 words
The layer system as set forth in claim 1, wherein the anti-corrosion layer is made of an at least partially oxidized metal compound.
Claim 4
Dependent Claim
30 words
The layer system as set forth in claim 1, wherein the anti-corrosion layer has a thickness such that diffusion of oxygen to said solderable layer is at least substantially prevented.
Claim 5
Dependent Claim
21 words
The layer system as set forth in claim 1, further comprising a bond-producing layer between said support and said solderable layer.
Claim 6
Dependent Claim
61 words
The layer system as set forth in claim 6, wherein said oxidizable metal composition of the anti-corrosion layer exists prior to a high temperature oxidation process of a further manufacturing stage of the transparent display device, said high temperature oxidation process being capable of causing said conductor layer to become a substantially completely oxidized metal after the high temperature oxidation process.
Claim 7
Dependent Claim
32 words
The layer system as set forth in claim 1, wherein said unsolderable layer is a conductor layer on said support, said solderable layer is between said anti-corrosion layer and said conductor layer.
Claim 8
Dependent Claim
20 words
The layer system as set forth in claim 6, further comprising a bond-producing layer arranged next to said conductor layer.
Claim 9
Dependent Claim
23 words
The layer system as set forth in claim 7, wherein said bond-producing layer is arranged between said conductor layer and said solderable layer.
Claim 10
Dependent Claim
18 words
The layer system as set forth in claim 4 or 8, wherein said bond-producing layer is electrically conducting.
Claim 11
Dependent Claim
64 words
The layer system as set forth in claim 1, wherein the oxidizable metal is selected from the group consisting of silicon, tin, indium, oxides of silicon, tin and indium, the support is made of a material selected from the group consisting of glass, silicon, expoxide and ceramic, and the unsolderable layer is indium tin oxide substantially of a thickness of 250 to 1500 Å.
Claim 12
Dependent Claim
24 words
The layer system as set forth in claim 5, wherein said conductor layer is indium tin oxide prior to the high temperature oxidation process.
References Cited (Backward Citations)
US3367755A
Cited
US3620692A
Cited
US4095876A
Cited
US4283118A
Cited
US4255474A
Cited
US4352716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |