US4621147A
Expired / Lapsed
US
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Novel trivalent organometallic compounds and methods of preparing same
Assignee: State University of New York at Albany
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Filing: 1984-11-21
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Granted: 1986-11-04
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Expires: 2004-11-21
Abstract
Abstract In the manufacture of semiconductors it is desirable to make controlled deposits of certain phosphides or arsenides of trivalent metals such as gallium, indium and aluminum. There are provided novel neopentyl derivatives of these metals whose stability characteristics makes them ideally suited for the above purpose.
Inventors
- 👤 Orville T. Beachley, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:17
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
27 words
A metallo-organic compound of the structure: M [CH 2 C(CH 3 ) 3 ] 3 wherein M is selected from the group consisting of Ga and In.
Claim 2
Dependent Claim
27 words
A metallo-organic compound of the structure: M [CH 2 C(CH 3 ) 3 ] 3 wherein M is selected from the group consisting of Ga and In.
Claim 3
Dependent Claim
8 words
Trisneopentyl gallium, being a compound of claim 1.
Claim 4
Dependent Claim
8 words
Trisneopentyl indium, being a compound of claim 1.
Claim 5
Dependent Claim
27 words
A process of preparing a compound of claim 1, which comprises reacting MX 3 with neopentyl lithium in hydrocarbon solution, where X is iodo, bromo or chloro.
Claim 6
Dependent Claim
26 words
A process of claim 4 which comprises the further steps of removing the volatile portions of the reaction product and separating the desired trisneopentyl M therefrom.
Claim 7
Dependent Claim
12 words
A process of claim 5 wherein the volatiles are removed by distillation.
Claim 8
Dependent Claim
17 words
A process of claim 5 wherein the desired product is separated from the total volatiles by distillation.
References Cited (Backward Citations)
US4101568A
Cited
US4170604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |