Patent US5254171A successfully refreshed from Google Patents.
US5254171A
Expired / Lapsed
US
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Bias ECR plasma CVD apparatus comprising susceptor, clamp, and chamber wall heating and cooling means
Assignee: Sony Corp
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Filing: 1992-04-13
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Granted: 1993-10-19
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Expires: 2012-04-13
Abstract
Abstract A bias ECR plasma CVD apparatus includes an ECR plasma generating chamber and a plasma CVD chamber for forming a film on a substrate by a plasma CVD reaction. A heating device and a cooling device are provided at least in the vicinity of the substrate for maintaining the substrate and the vicinity thereof at a constant temperature. With this construction, the number of contaminant particles deposited on a surface of the substrate in forming the film on the substrate can be reduced.
Inventors
- 👤 Hideaki Hayakawa
- 👤 Junichi Sato
- 👤 Tetsuo Gocho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:54
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/44; C23C16/46; C23C16/463; C23C16/50; C23C16/511; H; H01; H01J; H01J37/00; H01J37/32; H01J37/32009; H01J37/32357; H01J37/32431; H01J37/3266; H01J37/32678; H01J2237/00; H01J2237/02; H01J2237/022; H01J2237/20; H01J2237/2001; H01J2237/32; H01J2237/33; H01J2237/332; H01J2237/3321
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
A bias ECR plasma CVD apparatus including an ECR plasma generating chamber and a plasma CVD chamber for forming a film on a substrate by a plasma CVD reaction, comprising: a susceptor for supporting the substrate; a first heating device and a first cooling device provided in said susceptor for maintaining the substrate and a vicinity about the substrate at a constant temperature; a mechanical clamp means for clamping the substrate, said mechanical clamp means comprising a mechanical clamp for clamping the substrate and a mechanical clamp holder for holding said mechanical clamp; and a second heating device and a second cooling device provided in said mechanical clamp means for maintaining the substrate and the vicinity about the substrate at a constant temperature.
Claim 2
Dependent Claim
123 words
A bias ECR plasma CVD apparatus including an ECR plasma generating chamber and a plasma CVD chamber for forming a film on a substrate by a plasma CVD reaction, comprising: a susceptor for supporting the substrate; a first heating device and a first cooling device provided in said susceptor for maintaining the substrate and a vicinity about the substrate at a constant temperature; a mechanical clamp means for clamping the substrate, said mechanical clamp means comprising a mechanical clamp for clamping the substrate and a mechanical clamp holder for holding said mechanical clamp; and a second heating device and a second cooling device provided in said mechanical clamp means for maintaining the substrate and the vicinity about the substrate at a constant temperature.
Claim 3
Dependent Claim
44 words
A bias ECR plasma CVD apparatus as defined in claim 1, wherein the plasma CVD chamber has a wall, and further comprising: a plurality of third heating devices and a plurality of third cooling devices provided in said wall of said plasma CVD chamber.
Claim 4
Dependent Claim
37 words
A bias ECR plasma CVD apparatus as claimed in claim 2, wherein said plurality of third heating devices and said plurality of third cooling devices are arranged in alternation in said wall of said plasma CVD chamber.
Claim 5
Dependent Claim
37 words
A bias ECR plasma CVD apparatus as claimed in claim 2, wherein said plurality of fourth heating devices and said plurality of fourth cooling devices are arranged in alternation in said wall of said plasma drawing window.
Claim 6
Dependent Claim
43 words
A bias ECR plasma CVD apparatus as claimed in claim 1, further comprising: a plasma drawing window having a wall; and a plurality of fourth heating devices and a plurality of fourth cooling devices provided in said wall of said plasma drawing window.
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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) | 1996-10-18 | 1997-04-19 | 1997-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-18 | 2001-04-19 | 2001-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-18 | 2005-04-19 | 2005-10-19 | $7700.00 | Window Closed / Lapsed |