Patent ID: 8021992

Claim:
A high density plasma chemical vapor deposition process comprising: exciting a gas mixture to create a plasma comprising ions and directing the plasma into a dense region above the upper surface of a semiconductor wafer, said gas mixture comprising oxygen and one of silane and tetraethylorthosilicate; allowing a material from the plasma to be simultaneously deposited onto and etched from the semiconductor wafer to result in net deposition of said material while using a heat source in addition to said plasma to heat the semiconductor wafer supported on a semiconductor wafer chuck, said heating during said deposition to a temperature of greater than 600° C.; wherein the plasma during said deposition excludes a heavy bombardment species, said heavy bombardment species including argon ions, and wherein said plasma during said deposition comprises a light bombardment sputter etchant species selected from the group consisting of helium ion and hydrogen ions, said plasma not heating said material to reflow during said deposition.