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US4720560A Expired / Lapsed US ⏱️ 0.0 years remaining

Hybrid organometallic compounds, particularly for metal organic chemical vapor deposition

Assignee: ATK Launch Systems LLC
•
Filing: 1984-10-25
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Granted: 1988-01-19
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Expires: 2004-10-25
📄 Original PDF 🌐 Google Patents

Abstract

Abstract Compounds having the molecular formula: MR.sub.x wherein x is an integer from 2 to 4 inclusive, each said R substituent is independently selected from hydride, lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl substituted cyclopentadienyl, at least two of said R substituents are different, and M is an element selected from Groups 2B or 3A of the Periodic Table, Bismuth, Selenium, Tellurium, Beryllium, and Magnesium, but excluding Aluminum, Bismuth, Selenium, and Tellurium if any R is hydride. The hybrid compound is used for metal organic chemical vapor deposition. The invention also includes a metal organic chemical vapor deposition process employing a hybrid of first and second compounds having the above formula, but wherein the R substituents of each compound can be like or unlike and M is selected from Groups 2B, 2A, 3A, 5A, and 6A of the Periodic Table except for Carbon, Nitrogen, Oxygen, and Sulfur. The hybrid composite compound has different properties than the first and second compounds, and thus can be more suitable for a particular metal organic chemical vapor deposition process.

Inventors

  • 👤 Benjamin C. Hui
  • 👤 Jorg Lorberth
  • 👤 Andreas A. Melas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 11:26
CPC Classifications
C; C07; C07F; C07F5/00; C07C; C07C391/00; C07C395/00; C07F3/00; C07F3/02; C07F3/06; C07F3/08; C07F3/10; C07F3/12; C07F5/02; C07F5/027; C07F5/06; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/505; C07F9/66; C07F9/70; C07F9/72; C07F9/90; C07F9/94; C23; C23C; C23C16/00; C23C16/06; C23C16/18; C23C16/22; C23C16/30; C23C16/301; C23C16/305; C23C16/306

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 53 words
A compound having the molecular formula: MR.sub.X wherein x is 3, each said R substituent is independently selected from lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl-substituted cyclopentadienyl, at least two of said R substituents are different, and M is an element selected from Gallium and Indium, excluding dimethylcyclopentadienylgallium, dimethylcyclopentadienylindium, diethylcyclopentadienylgallium, and diethylcyclopentadienylindium.
Claim 2
Dependent Claim 53 words
A compound having the molecular formula: MR.sub.X wherein x is 3, each said R substituent is independently selected from lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl-substituted cyclopentadienyl, at least two of said R substituents are different, and M is an element selected from Gallium and Indium, excluding dimethylcyclopentadienylgallium, dimethylcyclopentadienylindium, diethylcyclopentadienylgallium, and diethylcyclopentadienylindium.
Claim 3
Dependent Claim 9 words
The invention of claim 1, wherein M is Indium.
Claim 4
Dependent Claim 12 words
The invention of claim 2, wherein each R substituent is lower alkyl.
Claim 5
Dependent Claim 14 words
The invention of claim 3, wherein at least one said R substituent is methyl.
Claim 6
Dependent Claim 12 words
The invention of claim 4, wherein two said R substituents are methyl.
Claim 7
Dependent Claim 13 words
The invention of claim 5, wherein the remaining said R substituent is ethyl.
Claim 8
Dependent Claim 14 words
The invention of claim 3 wherein at least one said R substituent is ethyl.
Claim 9
Dependent Claim 12 words
The invention of claim 7, wherein two said R substituents are ethyl.
Claim 10
Dependent Claim 13 words
The invention of claim 8, wherein the remaining said R substituent is methyl.
Claim 11
Dependent Claim 11 words
A monomeric compound according to claim 1, consisting essentially of dimethylethylindium.
Claim 12
Dependent Claim 11 words
A monomeric compound according to claim 1, consisting essentially of diethylmethylindium.
Claim 13
Dependent Claim 11 words
A compound selected from: methylbenzyltelluride; dimethylethylthallium; methylphenylgallium hydride; and ditolylgallium hydride.
Claim 14
Dependent Claim 11 words
A compound selected from: methylbenzyltelluride; dimethylethylthallium; methylphenylgallium hydride; and ditolylgallium hydride.
Claim 15
Dependent Claim 10 words
A compound according to claim 12, consisting essentially of methylbenzyltelluride.
Claim 16
Dependent Claim 1 words
Methyldiphenylaluminum.
Claim 17
Dependent Claim 1 words
Methyldiphenylaluminum.
Claim 18
Dependent Claim 1 words
Methylditolylaluminum.
Claim 19
Dependent Claim 1 words
Methylditolylaluminum.
Claim 20
Dependent Claim 10 words
A compound according to claim 1, consisting essentially of dimethylethylgallium.
Claim 21
Dependent Claim 10 words
A compound according to claim 12, consisting essentially of dimethylethylthallium.
Claim 22
Dependent Claim 11 words
A compound according to claim 12, consisting essentially of methylphenylgallium hydride.
Claim 23
Dependent Claim 11 words
A compound according to claim 12, consisting essentially of ditolylgallium hydride.

References Cited (Backward Citations)

US2266776A Cited
US2818416A Cited
US3097066A Cited
US2969382A Cited
US3026356A Cited
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US3161686A Cited
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JPS49121478A Cited
US4447369A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-01-18 1991-07-20 1992-01-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-01-18 1995-07-20 1996-01-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-01-18 1999-07-20 2000-01-19 $7700.00 Window Closed / Lapsed

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