Patent ID: 7488993
Filing Date: 2009-02-10
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor substrate of 100 micrometers or less in thickness; an electrode pattern formed above the semiconductor substrate; an insulation film of 50 micrometers or greater in thickness residing on parts of the upper surface side of the semiconductor substrate other than on the electrode pattern and a device forming region; and a semiconductor element provided in the device forming region, wherein the semiconductor element includes a semiconductor layer of a first conductivity type provided at the upper part of the semiconductor substrate; a well region of a second conductivity type provided at an upper surface part of the semiconductor layer, the well contacting the semiconductor layer; first and second impurity diffused regions of the first conductivity type as source and drain regions provided in the well region; and a gate electrode provided at an interface area between the semiconductor layer, the well region and the first and second impurity diffused regions on a gate insulating film.