Patent US4717630A successfully refreshed from Google Patents.
US4717630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substrate for manufacturing single crystal thin films
Assignee: Individual
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Filing: 1986-05-09
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Granted: 1988-01-05
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Expires: 2006-05-09
Abstract
Abstract The invention is directed to a substrate for manufacturing single crystal thin films wherein the substrate is a replica pattern of a monocrystalline or single crystal cleavage plane. Such replica pattern may be formed by pressing a material in a softened state against the cleavage plane of the single crystal, with subsequent hardening, and also, by subjecting the single crystal cleavage plane to vapor deposition or plating, and thereafter removing the formed layer from the single crystal cleavage plane.
Inventors
- 👤 Yoshihiro Hamakawa
- 👤 Hideyuki Takakura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:57
CPC Classifications
C; C30; C30B; C30B19/00; C30B19/12; C30B23/00; C30B23/02; C30B23/04; C30B25/00; C30B25/02; C30B25/04; C30B25/18; Y; Y10; Y10S; Y10S117/00; Y10S117/901; Y10S117/902; Y10S117/914; Y10T; Y10T428/00; Y10T428/12; Y10T428/12472; Y10T428/12493; Y10T428/12674; Y10T428/12708; Y10T428/12722; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12861; Y10T428/12889; Y10T428/12896; Y10T428/12944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
An article comprising: an original plate produced by anisotropically etching a silicon single crystal wafer having a (100) surface to provide a single crystal cleavage plane, said original plate having a plurality of pyramidal surfaces each of which is a (111) plane; a layer of metal selected from the group consisting of tin, gold and zinc vapor deposited on said pyramidal surfaces of said original plate; a layer of nickel plated on said vapor deposited metal layer; and a stainless steel base fixed on said nickel layer through a brazing metal selected from the group consisting of gold and silver.
Claim 2
Dependent Claim
100 words
An article comprising: an original plate produced by anisotropically etching a silicon single crystal wafer having a (100) surface to provide a single crystal cleavage plane, said original plate having a plurality of pyramidal surfaces each of which is a (111) plane; a layer of metal selected from the group consisting of tin, gold and zinc vapor deposited on said pyramidal surfaces of said original plate; a layer of nickel plated on said vapor deposited metal layer; and a stainless steel base fixed on said nickel layer through a brazing metal selected from the group consisting of gold and silver.
References Cited (Backward Citations)
US3532582A
Cited
JPS4834069A
Cited
US4096025A
Cited
US4333792A
Cited
US4147584A
Cited
WO1980000126A1
Cited
US4204599A
Cited
US4229474A
Cited
US4350561A
Cited
US4303463A
Cited
US4371421A
Cited
US4565599A
Cited
US4444620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-04 | 1991-07-06 | 1992-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-04 | 1995-07-06 | 1996-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-04 | 1999-07-06 | 2000-01-05 | $7700.00 | Window Closed / Lapsed |