Patent ID: 6323547
Filing Date: 2001-11-27
Classification: H01L

Abstract:
A contact pressure type semiconductor device, comprising:a disciform semiconductor substrate with a ring-shaped gate electrode formed thereon;a ring gate electrode in contact with said ring-shaped gate electrode;a gate terminal having a first end portion in contact with said ring gate electrode, and a second end portion extending to an outside portion of the contact pressure type semiconductor device; andan insulation cylinder fixed to an intermediate portion of said gate terminal between said first and second end portions so as to sandwich said intermediate portion from above and below and to surround all of said semiconductor substrate, said ring gate electrode, and a portion of said gate terminal which ranges from said first end portion to said intermediate portion,wherein said gate terminal is made of a material that has a permeability of 15,000 or less in the CGS Gaussian system of units.