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US5114745A
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Method of producing a thin carbide layer on a carbon substrate, growing a diamond or diamond-like film on the carbide layer, and removing the carbon substrate
Assignee: Individual
•
Filing: 1990-05-30
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Granted: 1992-05-19
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Expires: 2010-05-30
Abstract
Abstract A method of producing a diamond or diamond-like film having a desired profile which involves providing a solid carbon substrate having a surface shaped to the desired profile, creating a thin carbide layer on the profiled surface growing a diamond or diamond-like film on the carbide layer, removing the carbon substrate and optionally also removing the carbide layer.
Inventors
- 👤 Barbara L. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:51
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/01; C23C16/22; C23C16/26; Y; Y10; Y10S; Y10S427/00; Y10S427/103; Y10S427/106
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
74 words
A method of producing a diamond or diamond-like film having a desired profile includes the steps of providing a solid carbon substrate having a surface shaped to the desired profiled, producing a thin carbide layer on the profiled surface, growing a diamond or diamond-like film on the carbide layer and removing the substrate, wherein the solid substrate and/or carbide layer are removed by a method selected from machining, milling, etching and a combination thereof.
Claim 2
Independent Claim
74 words
A method of producing a diamond or diamond-like film having a desired profile includes the steps of providing a solid carbon substrate having a surface shaped to the desired profiled, producing a thin carbide layer on the profiled surface, growing a diamond or diamond-like film on the carbide layer and removing the substrate, wherein the solid substrate and/or carbide layer are removed by a method selected from machining, milling, etching and a combination thereof.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein the carbide layer is also removed.
Claim 4
Dependent Claim
13 words
A method according to claim 1 wherein the substrate is a graphite substrate.
Claim 5
Dependent Claim
25 words
A method according to claim 1 wherein the carbide is a carbide of a high melting metal selected from titanium, hafnium, zirconium, molybdenum and tantalum.
Claim 6
Dependent Claim
18 words
A method according to claim 1 wherein the carbide layer has a thickness of less than 20 microns.
Claim 7
Dependent Claim
18 words
A method according to claim 1 wherein the carbide layer has a thickness of less than 5 microns.
Claim 8
Dependent Claim
22 words
A method according to claim 1 wherein the diamond or diamond-like film is grown on the carbide layer by chemical vapour deposition.
References Cited (Backward Citations)
US4434188A
Cited
US4707384A
Cited
JPS61106494A
Cited
JPS61151097A
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US5023068A
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US4987002A
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JPH02175696A
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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) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |