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公开(公告)号:US20150325580A1
公开(公告)日:2015-11-12
申请号:US14746205
申请日:2015-06-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Sung-Hun LEE , Ki-Yong KIM , Sung-Wook PARK , Gyu-Yeol LEE
IPC: H01L27/115 , H01L29/788 , H01L29/423 , H01L29/49
CPC classification number: H01L27/11524 , H01L21/28273 , H01L21/823437 , H01L21/823443 , H01L21/823456 , H01L27/11529 , H01L29/42328 , H01L29/495 , H01L29/4975 , H01L29/788
Abstract: In a semiconductor device, a first gate structure is provided in a cell transistor region and includes a floating gate electrode, a first dielectric layer pattern, and a control gate electrode including a first metal silicide pattern. A second gate structure is provided in a selecting transistor region and includes a first conductive layer pattern, a second dielectric layer pattern, and a first gate electrode including a second metal silicide pattern. A third gate structure is provided in a peripheral circuit region and includes a second conductive layer pattern, a third dielectric layer pattern including opening portions on the second conductive layer pattern, and a second gate electrode including a concavo-convex portion at an upper surface portion thereof and a third metal silicide pattern. The third metal silicide pattern has a uniform thickness.
Abstract translation: 在半导体器件中,第一栅极结构设置在单元晶体管区域中,并且包括浮置栅电极,第一介电层图案和包括第一金属硅化物图案的控制栅电极。 第二栅极结构设置在选择晶体管区域中,并且包括第一导电层图案,第二介电层图案和包括第二金属硅化物图案的第一栅电极。 第三栅极结构设置在外围电路区域中,并且包括第二导电层图案,在第二导电层图案上包括开口部分的第三介电层图案,以及在上表面部分包括凹凸部分的第二栅电极 和第三金属硅化物图案。 第三金属硅化物图案具有均匀的厚度。