Patent ID: 9299803
Filing Date: 2016-03-29
CPC Classification: H01L

Claim Text:
1. A method of forming a semiconductor device, the method comprising: providing a substrate, the substrate having n-type doped source/drain features; depositing a flowable dielectric material layer over the substrate; performing a wet annealing process to the flowable dielectric material layer; and performing a dry annealing process to the flowable dielectric material layer, wherein: the wet annealing process includes a first portion performed at a temperature below 600 degrees Celsius and a second portion performed at temperatures above 850 degrees Celsius; the second portion is performed for a shorter duration than the first portion; the dry annealing process includes a third portion performed at a temperature below 600 degrees Celsius and a fourth portion performed at temperatures above 850 degrees Celsius; and the fourth portion is performed for a shorter duration than the third portion.