Patent ID: 8952744
Filing Date: 2015-02-10
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a first doped region having a first conductivity; a second doped region adjoined with the first doped region and having a second conductivity opposite to the first conductivity; a first doped contact; a second doped contact having an opposing conductivity to the first doped contact, wherein the first doped contact and the second doped contact are on the first doped region, the first doped contact and the second doped contact have a first PN junction therebetween; a first doped layer under the first doped contact or the second doped contact, wherein the first doped layer and the first or second doped contact have a second PN junction therebetween, and the second PN junction is adjoined with the first PN junction; a third doped contact having the first conductivity and disposed in the second doped region; and a first gate structure on the second doped region between the first doped region and the third doped contact.