EP0400947B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Diamond growth
Assignee: De Beers Industrial Diamond Division Pty Ltd
•
Filing: 1990-05-29
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Granted: 1994-08-17
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Expires: 2010-05-29
Abstract
No abstract record available.
Inventors
- 👤 Barbara Lynn Jones
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-22 23:47
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: 9
Claim 1
Independent Claim
62 words
A method of producing an essentially free-standing diamond or diamond-like film (16) having a desired profile includes the steps of providing a solid substrate (10) having a surface (12) shaped to the desired profile, producing a thin carbide layer (14) on the profiled surface (12), growing a diamond or diamond-like film (16) on the carbide layer (14) and removing the substrate (10).
Claim 2
Dependent Claim
25 words
A method according to claim 1 wherein in order to obtain a completely free-standing diamond or diamond-like film the carbide layer (14) is also removed.
Claim 3
Dependent Claim
18 words
A method according to claim 1 or claim 2 wherein the substrate (10) is a solid carbon substrate.
Claim 4
Dependent Claim
14 words
A method according to claim 3 wherein the substrate (10) is a graphite substrate.
Claim 5
Independent Claim
29 words
A method according to any one of the preceding claims wherein the carbide is a carbide of a high melting metal selected from titanium, hafnium, zirconium, molybdenum and tantalum.
Claim 6
Independent Claim
23 words
A method according to any one of the preceding claims wherein the carbide layer (14) has a thickness of less than 20 microns.
Claim 7
Independent Claim
24 words
A method according to any one of claims 1 to 4 wherein the carbide layer (14) has a thickness of less than 5 microns.
Claim 8
Independent Claim
33 words
A method according to any one of the preceding claims wherein the solid substrate (10) and/or carbide layer (14) are removed by a method selected from machining, milling, etching and a combination thereof.
Claim 9
Independent Claim
28 words
A method according to any one of the preceding claims wherein the diamond or diamond-like film (16) is grown on the carbide layer (14) by chemical vapour deposition.
References Cited (Backward Citations)
EP0288065A2
Cited
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