Patent ID: 7667294
Filing Date: 2010-02-23
Classification: H01L

Abstract:
1. A lateral bipolar transistor formed over a substrate of an SOI structure having a silicon layer provided over an embedded insulating film layer, comprising: an emitter diffusion region formed in the substrate; two base diffusion regions formed so as to interpose the emitter diffusion region therebetween; two collector diffusion regions formed so as to interpose the emitter diffusion region and the two base diffusion regions therebetween; at least two base drawing diffusion regions formed at positions away from the emitter diffusion region in a state of being respectively electrically connected to the two base diffusion regions; and an isolation insulating film formed so as to be adjacent to the portion of an emitter diffusion region which is not in contact with the base diffusion regions, and reach the embedded insulating film layer.