Patent US4885188A successfully refreshed from Google Patents.
US4885188A
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Process for forming thin film of metal sulfides
Assignee: Panasonic Holdings Corp
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Filing: 1986-01-16
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Granted: 1989-12-05
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Expires: 2006-01-16
Abstract
Abstract This invention is designed to form thin films of metal sulfides usable in various types of electronic devices with a simple process comprising forming a layer of an organometallic compound having at least one metal-sulfur or metal-oxygen bond in the molecule on a substrate by printing or other means and then thermally decomposing the formed organometallic compound layer in an inert gas which may or may not be mixed with hydrogen sulfide.
Inventors
- 👤 Yo Hasegawa
- 👤 Kazuyuki Okano
- 👤 Akira Nakanishi
- 👤 Hiroshi Hatase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:11
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/02; C23C18/12; C23C18/1204; C23C18/125; C23C18/1275
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
60 words
A process for forming a thin film of a metal sulfide, which comprises coating a substrate with a layer of a solution including an organometallic compound having at least one metal-sulfur bond in the molecule, and then thermally decomposing said organometallic compound layer in an inert gas mixed with hydrogen sulfide to form a thin film of a metal sulfide.
Claim 2
Dependent Claim
60 words
A process for forming a thin film of a metal sulfide, which comprises coating a substrate with a layer of a solution including an organometallic compound having at least one metal-sulfur bond in the molecule, and then thermally decomposing said organometallic compound layer in an inert gas mixed with hydrogen sulfide to form a thin film of a metal sulfide.
Claim 3
Dependent Claim
20 words
The process according to claim 1, wherein the organometallic compound having at least one metal-sulfur bond is a metal mercaptide.
Claim 4
Dependent Claim
22 words
The process according to claim 1, wherein the organometallic compound having at least one metal-sulfur bond is a thiocarboxylate of a metal.
Claim 5
Dependent Claim
22 words
The process according to claim 1, wherein the organometallic compound having at least one metalsulfur bond is a dithiocarboxylate of a metal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |