Patent ID: 6489255
Filing Date: 2002-12-03
Classification: H01L

Abstract:
A method of forming a single chemical vapor deposited layer of doped oxide glass on a semiconductor device in a chemical vapor deposition chamber consisting essentially of the steps of:a) mixing and reacting gaseous sources of silicon, ozone, oxygen and at least one of the dopants comprising boron and phosphorus over said semiconductor device, wherein said ozone and oxygen are present in admixture in relative amounts whereby said ozone is present in a ratio of about 9-15 weight percent in said oxygen-ozone mixture and said dopant being present in an amount such that the deposited layer of oxide glass contains no greater than about 4 weight percent of each dopant concentration; b) depositing a single layer of doped oxide glass on said semiconductor device with no greater than about 4 weight percent each of boron and phosphorus concentration; and c) annealing said single layer of doped oxide glass on said semiconductor device at a temperature no greater than about 700Â° C. for a time sufficient to reflow said layer.