公开(公告)号：US20130119470A1

公开(公告)日：2013-05-16

申请号：US13678103

申请日：2012-11-15

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Katsuyuki HORITA ,  Toshiaki IWAMATSU ,  Hideki MAKIYAMA ,  Yoshiki YAMAMOTO

IPC: H01L29/78 ,  H01L21/48

CPC classification number: H01L21/84 ,  H01L21/28008 ,  H01L21/283 ,  H01L21/31111 ,  H01L21/486 ,  H01L21/743 ,  H01L21/76802 ,  H01L21/76831 ,  H01L21/76895 ,  H01L21/76897 ,  H01L27/0207 ,  H01L27/1203 ,  H01L29/66568 ,  H01L29/78 ,  H01L29/78648 ,  H01L29/78654 ,  H01L2924/0002 ,  H01L2924/00

Abstract: Characteristics of a semiconductor device are improved. A semiconductor device of the present invention includes: (a) a MISFET arranged in an active region formed of a semiconductor region surrounded by an element isolation region; and (b) an insulating layer arranged below the active region. Further, the semiconductor device includes: (c) a p-type semiconductor region arranged below the active region so as to interpose the insulating layer; and (d) an n-type semiconductor region whose conductivity type is opposite to the p-type, arranged below the p-type semiconductor region. And, the p-type semiconductor region includes a connection region extending from below the insulating layer, and the p-type semiconductor region and a gate electrode of the MISFET are connected to each other by a shared plug which is an integrally-formed conductive film extending from above the gate electrode to above the connection region.