公开(公告)号：SG115598A1

公开(公告)日：2005-10-28

申请号：SG200307829

申请日：2003-12-26

Applicant: IBM

Inventor： HEEMYONG PARK ,  BYOUNG H LEE ,  PAUL D AGNELLO ,  DOMINIC J SCHEPIS ,  GHAVAM G SHAHIDI

IPC: H01L21/00 ,  H01L21/336 ,  H01L21/76 ,  H01L21/762 ,  H01L21/8238 ,  H01L21/84 ,  H01L27/01 ,  H01L21/28 ,  H01L27/08 ,  H01L27/092 ,  H01L27/12 ,  H01L29/417 ,  H01L29/423 ,  H01L29/49 ,  H01L29/74 ,  H01L29/76 ,  H01L29/78 ,  H01L29/786 ,  H01L29/94 ,  H01L31/062 ,  H01L31/113 ,  H01L31/119

Abstract: A method and structure for a CMOS device comprises depositing a silicon over insulator (SOI) wafer over a buried oxide (BOX) substrate, wherein the SOI wafer has a predetermined thickness; forming a gate dielectric over the SOI wafer, forming a shallow trench isolation (STI) region over the BOX substrate, wherein the STI region is configured to have a generally rounded corner; forming a gate structure over the gate dielectric; depositing an implant layer over the SOI wafer; performing one of N-type and P-type dopant implantations in the SOI wafer and the implant layer; and hearing the device to form source and drain regions from the implant layer and the SOI wafer, wherein the source and drain regions have a thickness greater than the predetermined thickness of the SOI wafer, wherein the gate dielectric is positioned lower than the STI region.