Patent US5209916A successfully refreshed from Google Patents.
US5209916A
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Conversion of fullerenes to diamond
Assignee: Dimerond Technologies LLC
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Filing: 1991-11-25
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Granted: 1993-05-11
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Expires: 2011-11-25
Abstract
Abstract A method of forming synthetic diamond on a substrate is disclosed. The method involves providing a substrate surface covered with a fullerene or diamond coating, positioning a fullerene in an ionization source, creating a fullerene vapor, ionizing fullerene molecules, accelerating the fullerene ions to energies above 250 eV to form a fullerene ion beam, impinging the fullerene ion beam on the substrate surface and continuing these steps to obtain a diamond thickness on the substrate.
Inventors
- 👤 Dieter M. Gruen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:16
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/26; C23C16/27; C23C16/274; C01; C01B; C01B32/00; C01B32/25; C01B32/26; C23C14/00; C23C14/06; C23C14/0605; C23C14/0611; C23C14/22; C23C14/221; C23C16/277; C30; C30B; C30B23/00; C30B23/02; C30B25/00; C30B25/02; C30B25/10; C30B25/105; C30B29/00; C30B29/02; C30B29/04; C30B33/00; H; H01; H01J; H01J9/00; H01J9/02; H01J9/022; H01J9/025; Y; Y10; Y10S; Y10S977/00; Y10S977/70; Y10S977/734
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
A method of forming synthetic diamond on a coated substrate surface having an initial coating selected from the group consisting of fullerene and diamond comprising the step of: (a) supplying fullerenes to an ionization source; (b) creating a vapor of said fullerenes by heating said fullerenes in said ionization source in a vacuum chamber; (c) ionizing fullerene molecules in said vapor of fullerenes by at least one of the procedures of laser ablation, electron bombardment, electron attachment or photoionization to fullerene ions; (d) accelerating said fullerene ions to energies of about 250 eV to 2.5 keV to form a fullerene ion beam; (e) impinging said fullerene ion beam on said substrate surface and fragmenting said fullerene ions; and (f) continuing said steps (a)-(e) to grow a diamond film on said coated substrate surface.
Claim 2
Independent Claim
133 words
A method of forming synthetic diamond on a coated substrate surface having an initial coating selected from the group consisting of fullerene and diamond comprising the step of: (a) supplying fullerenes to an ionization source; (b) creating a vapor of said fullerenes by heating said fullerenes in said ionization source in a vacuum chamber; (c) ionizing fullerene molecules in said vapor of fullerenes by at least one of the procedures of laser ablation, electron bombardment, electron attachment or photoionization to fullerene ions; (d) accelerating said fullerene ions to energies of about 250 eV to 2.5 keV to form a fullerene ion beam; (e) impinging said fullerene ion beam on said substrate surface and fragmenting said fullerene ions; and (f) continuing said steps (a)-(e) to grow a diamond film on said coated substrate surface.
Claim 3
Dependent Claim
20 words
The method as defined in claim 1 wherein said substrate surface is maintained at a temperature of about 50°-500° C.
Claim 4
Dependent Claim
20 words
The method as defined in claim 1 wherein said fullerene in said step (b) is heated to about 500°-600° C.
Claim 5
Independent Claim
109 words
A method of forming synthetic diamond on a substrate surface having an initial coating selected from the group consisting of fullerene and diamond comprising the steps of: (a) supplying fullerenes to an ionization source; (b) creating a vapor of said fullerenes from said fullerenes positioned in said ionization source; (c) ionizing fullerene molecules in said vapor of fullerenes to form fullerene ions; (d) accelerating said fullerene ions to energies of at least about 250 eV to form a fullerene ion beam; (d) impinging said fullerene ion beam on said coated substrate surface; and (f) continuing said steps (a)-(e) to obtain grow a diamond film on said coated substrate surface.
Claim 6
Independent Claim
109 words
A method of forming synthetic diamond on a substrate surface having an initial coating selected from the group consisting of fullerene and diamond comprising the steps of: (a) supplying fullerenes to an ionization source; (b) creating a vapor of said fullerenes from said fullerenes positioned in said ionization source; (c) ionizing fullerene molecules in said vapor of fullerenes to form fullerene ions; (d) accelerating said fullerene ions to energies of at least about 250 eV to form a fullerene ion beam; (d) impinging said fullerene ion beam on said coated substrate surface; and (f) continuing said steps (a)-(e) to obtain grow a diamond film on said coated substrate surface.
References Cited (Backward Citations)
US4629631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-05-10 | 1996-11-09 | 1997-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-10 | 2000-11-09 | 2001-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-10 | 2004-11-09 | 2005-05-11 | $7700.00 | Window Closed / Lapsed |