US4486232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode material for semi-conductor devices
Assignee: NEW ENERGY DEVELOPMENT ORGANIZATION 1-1 HIGASHIIKEBUKURO TOSHIMA-KU TOKYO JAPAN A CORP OF JAPAN
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Filing: 1983-08-17
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Granted: 1984-12-04
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Expires: 2003-08-17
Abstract
Abstract An electrode material for semi-conductor device such as solar cells comprises Ag powders, at least one metal of zirconium, hafnium, vanadium, niobium, and tantalum, an organic binder, and an organic solvent, and, if necessary, glass, Pd powders and Pt powders. The electrodes are prepared from the electrode material by printing, drying and firing at a low temperature and have a low contact resistance without any junction breakage or increase in leak current.
Inventors
- 👤 Mitsuo Nakatani
- 👤 Haruhiko Matsuyama
- 👤 Masaaki Okunaka
- 👤 Hitoshi Yokono
- 👤 Tokio Isogai
- 👤 Tadashi Saitoh
- 👤 Sumiyuki Midorikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:05
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/20; H10F77/206; H10F77/211; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
28 words
An electrode material for semi-conductor device, which comprises Ag powders, at least one metal of zirconium, hafnium, vanadium, niobium, and tantalum, an organic binder and an organic solvent.
Claim 2
Dependent Claim
28 words
An electrode material for semi-conductor device, which comprises Ag powders, at least one metal of zirconium, hafnium, vanadium, niobium, and tantalum, an organic binder and an organic solvent.
Claim 3
Dependent Claim
21 words
An electrode material according to claim 1, where at least one of glass, Pd powders and Pt powders is further contained.
Claim 4
Dependent Claim
38 words
An electrode material according to claim 1 or 2, wherein 0.5-30 parts by weight of at least one metal of the zirconium, hafnium, vanadium, niobium and tantalum is contained per 100 parts by weight of the Ag powders.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |