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Organometallic tellurium compounds useful in chemical vapor deposition processes

Assignee: Advanced Technology Materials Inc
•
Filing: 1991-02-15
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Granted: 1994-05-17
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Expires: 2011-02-15
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Abstract

Abstract Novel tellurium compounds of the present invention have the formula: TeR.sup.1 R.sup.2 wherein R 1 is a fluorinated alkyl having the formula C n F.sub.(2n+1)-x H x where n may range from 1 to 6 and x may range from 0 to 2n, and R 2 is selected from the group consisting of alkyls having 2 to 6 carbon atoms, cycloalkyls having 3 to 6 carbon atoms, allyl, alkyl-substituted allyl having 4 to 6 carbon atoms, cyclopentadienyl, benzyl, alpha-methylbenzyl, and bis(alpha-methyl)benzyl. The novel tellurium reagents are useful as sources for organometallic vapor deposition processes, particularly the MOCVD fabrication of II-VI semiconductor materials such as Hg x Cd 1-x Te. The compounds are synthesized by high yield ligand exchange reactions between Te(R 1 ) 2 and Te(R 2 ) 2 .

Inventors

  • 👤 Duncan W. Brown
  • 👤 Rein U. Kirss
  • 👤 Douglas Gordon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 01:40
CPC Classifications
C; C30; C30B; C30B25/00; C30B25/02; C07; C07C; C07C395/00; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/305; C23C16/306; C30B29/00; C30B29/10; C30B29/46; C30B29/48

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 80 words
A compound having the formula: TeR.sup.1 R.sup.2 wherein R 1 is a fluorinated alkyl having the formula C n F.sub.(2n+1)-x H x ; and where n ranges from 1 to 6 and x ranges from 0 to 2 n; and R 2 is selected from the group consisting of secondary and tertiary alkyls having 3 to 6 carbon atoms, cycloalkyls having 3 to 6 carbon atoms, allyl, alkyl-substituted allyls having 4 to 6 carbon atoms, cyclopentadienyl, benzyl, alpha-methylbenzyl, and bis(alpha-methyl)benzyl.
Claim 2
Dependent Claim 80 words
A compound having the formula: TeR.sup.1 R.sup.2 wherein R 1 is a fluorinated alkyl having the formula C n F.sub.(2n+1)-x H x ; and where n ranges from 1 to 6 and x ranges from 0 to 2 n; and R 2 is selected from the group consisting of secondary and tertiary alkyls having 3 to 6 carbon atoms, cycloalkyls having 3 to 6 carbon atoms, allyl, alkyl-substituted allyls having 4 to 6 carbon atoms, cyclopentadienyl, benzyl, alpha-methylbenzyl, and bis(alpha-methyl)benzyl.
Claim 3
Dependent Claim 19 words
A compound according to claim 1 wherein R 1 is selected from the group consisting of trifluoromethyl and pentafluoroethyl.
Claim 4
Dependent Claim 35 words
A compound having the formula: TeR.sup.1 R.sup.2 wherein R 1 is selected from the group consisting of trifluoromethyl and pentafluoroethyl and R 2 is selected from the group consisting of t-butyl, i-propyl, allyl, and benzyl.
Claim 5
Dependent Claim 35 words
A compound having the formula: TeR.sup.1 R.sup.2 wherein R 1 is selected from the group consisting of trifluoromethyl and pentafluoroethyl and R 2 is selected from the group consisting of t-butyl, i-propyl, allyl, and benzyl.
Claim 6
Dependent Claim 25 words
A compound having the formula TeR.sup.1 R.sup.2 wherein R 1 is trifluoromethyl and R 2 is selected from the group consisting of t-butyl and allyl.
Claim 7
Dependent Claim 25 words
A compound having the formula TeR.sup.1 R.sup.2 wherein R 1 is trifluoromethyl and R 2 is selected from the group consisting of t-butyl and allyl.

References Cited (Backward Citations)

US4258208A Cited
US4256912A Cited
US4508662A Cited
US4578225A Cited
US4675088A Cited
US4920068A Cited
US4828938A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-05-16 1997-11-15 1998-05-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-05-16 2001-11-15 2002-05-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-05-16 2005-11-15 2006-05-17 $7700.00 Window Closed / Lapsed

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