Patent US4945857A successfully refreshed from Google Patents.
US4945857A
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Plasma formation of hydride compounds
Assignee: International Business Machines Corp
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Filing: 1989-03-15
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Granted: 1990-08-07
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Expires: 2009-03-15
Abstract
Abstract The synthesis of hydride compounds by reacting both the ingredients of the compound and the hydrogen together in the presence of energy sufficient to ionize the hydrogen. An inert bombardment ingredient enhances efficiency. In situ generation of ingredients such as arsine is provided within the reactor adjacent the deposition site in chemical vapor deposition.
Inventors
- 👤 John C. Marinace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:41
CPC Classifications
C; C30; C30B; C30B25/00; C30B25/02; C01; C01B; C01B25/00; C01B25/06; C01B6/00; C01B6/06; C01B6/065; C23; C23C; C23C16/00; C23C16/44; C23C16/448; C23C16/4488; C30B29/00; C30B29/10; C30B29/40
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
A semiconductor fabrication apparatus comprising: semiconductor formation site having means to decompose at least two gas products into a semiconductor at said semiconductor formation site, at least two reaction sites separate and upstream from said semiconductor formation site, means for providing a first phase of at least one raw material to a first reaction site, means for providing a second phase of at least one raw material to a second reaction site, means for providing hydrogen to at least two reaction sites, means for combining said raw material and said hydrogen at each of said reaction sites, means for subjecting said raw material and said hydrogen to plasma energy to induce said raw material and said hydrogen to form said gas product at said reaction site, and means for transporting each of said gas products to said semiconductor formation site.
Claim 2
Dependent Claim
140 words
A semiconductor fabrication apparatus comprising: semiconductor formation site having means to decompose at least two gas products into a semiconductor at said semiconductor formation site, at least two reaction sites separate and upstream from said semiconductor formation site, means for providing a first phase of at least one raw material to a first reaction site, means for providing a second phase of at least one raw material to a second reaction site, means for providing hydrogen to at least two reaction sites, means for combining said raw material and said hydrogen at each of said reaction sites, means for subjecting said raw material and said hydrogen to plasma energy to induce said raw material and said hydrogen to form said gas product at said reaction site, and means for transporting each of said gas products to said semiconductor formation site.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 which further comprises: means for providing an inert gas to each reaction site provided with hydrogen.
Claim 4
Dependent Claim
29 words
The apparatus of claim 1 which further comprises: means to combine at least two of said gas products before the combination of gas products enters the semiconductor formation site.
Claim 5
Dependent Claim
11 words
the apparatus of claim 2 where said inert gas is Ar.
Claim 6
Dependent Claim
11 words
The apparatus of claim 4 where said raw material is As.
Claim 7
Dependent Claim
11 words
The apparatus of claim 4 where said raw material is P.
Claim 8
Dependent Claim
11 words
The apparatus of claim 4 where said raw material is Ga.
Claim 9
Dependent Claim
38 words
The apparatus of claim 4 wherein: said raw material for at least one of said gas products being chosen from the group of As and P and said raw material for at least one gas product being Ga.
References Cited (Backward Citations)
US4505949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |