Patent ID: 8669149
Filing Date: 2014-03-11
Classification: H01L

Abstract:
1. A method for forming a semiconductor structure, comprising: providing a first type substrate; forming a first type body doped region in the first type substrate; forming a second type well region and a plurality of second type bar regions in the first type substrate, wherein the second type bar regions are disposed between the second type well region and the first type body doped region, and the first type body doped region, the second type well region, and each of the second type bar regions are separated to one another by the first type substrate; forming an isolation structure on the first type substrate; forming a gate structure partially covering the isolation structure, wherein the isolation structure covers the plurality of second type bar regions; forming a first type heavily-doped region in the first type body doped region; forming a second type heavily-doped region in the second type well region; and diffusing the second bar regions to form a second type continuous region adjoined to the second type well region by annealing.