Patent ID: 7199030
Filing Date: 2007-04-03
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising: forming a gate electrode on a gate insulating layer formed on a semiconductor substrate; forming a mask film selected from either a silicon nitride film or a silicon oxynitride film on the semiconductor substrate so that the gate electrode is covered by the mask film, and so that the mask film is in direct contact with a surface of the semiconductor substrate at areas immediately adjacent to the gate electrode; implanting impurity ions into the semiconductor substrate through the mask film; and activating the impurity ions implanted in the semiconductor substrate by executing a rapid thermal anneal method to the semiconductor substrate with the mask film, so as to produce stress by the mask film, between the mask film and the semiconductor substrate; wherein the mask film is directly formed on the semiconductor substrate at regions that serve as a source and a drain; and wherein the source and the drain extend under the gate electrode.