Method and composition for depositing silicon dioxide layers
First Claim
1. A chemical vapor deposition method for forming SiO2 layers on a substrate which comprises contacting organosilicon reagent vapors with the surface of a heated substrate and heating said substrate to a temperature sufficiently high to pyrolyze said organosilicon vapors onto said surface,said organosilicon reagent comprising at least one compound of the formula
wherein x is at least 1, L is of a formula selected from the group consisting of --OR" and --ON═
R'"'"'", R'"'"' and R" are monovalent hydrocarbon radicals of less than 30 carbon atoms and R'"'"'" is a divalent hydrocarbon radical of less than 30 carbon atoms and,said organosilicon reagent being vaporized at a temperature below 300°
C.
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Abstract
A method and composition for depositing SiO2 on substrates by chemical vapor deposition are provided wherein aminoxysilane reagents are utilized. These aminoxysilane reagents pyrolyze at about the same temperatures as organometallic reagents, permitting multiple alternating layers of silicon dioxide and metal oxides to be formed at the same operating temperature.
49 Citations
17 Claims
- 1. A chemical vapor deposition method for forming SiO2 layers on a substrate which comprises contacting organosilicon reagent vapors with the surface of a heated substrate and heating said substrate to a temperature sufficiently high to pyrolyze said organosilicon vapors onto said surface,
said organosilicon reagent comprising at least one compound of the formula - space="preserve" listing-type="equation">Si(L).sub.4-x (ONR'"'"'.sub.2).sub.x I
wherein x is at least 1, L is of a formula selected from the group consisting of --OR" and --ON═
R'"'"'", R'"'"' and R" are monovalent hydrocarbon radicals of less than 30 carbon atoms and R'"'"'" is a divalent hydrocarbon radical of less than 30 carbon atoms and,said organosilicon reagent being vaporized at a temperature below 300°
C.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification