Patent ID: 7535064
Filing Date: 2009-05-19
Classification: H01L

Abstract:
1. A semiconductor device comprising: a Fin which is formed on a major surface of a semiconductor substrate and extends in a first direction; a source region and a drain region which are formed at both end portions in the first direction of the Fin; a first extension region which is formed between the source region and the drain region within the Fin in contact with the source region, the first extension region having a lower impurity concentration than the source region; a second extension region which is formed between the source region and the drain region within the Fin in contact with the drain region, the second extension region having a lower impurity concentration than the drain region; a channel region which is located between the first extension region and the second extension region within the Fin, a height of the Fin of the channel region being greater than a height of the Fin of each of the first extension region and the second extension region, the Fin of the channel region including a protruding portion protruding above an upper surface of the first and second extension regions; an insulation film which covers both side surfaces and an upper surface of the channel region; and a gate electrode which covers the channel region via the insulation film.