发明申请
- 专利标题: Semiconductor integrated circuit and fabrication method thereof
- 专利标题(中): 半导体集成电路及其制造方法
-
申请号: US11294566申请日: 2005-12-06
-
公开(公告)号: US20060086988A1公开(公告)日: 2006-04-27
- 发明人: Haruyuki Sorada , Akira Asai , Takeshi Takagi , Akira Inoue , Yoshio Kawashima
- 申请人: Haruyuki Sorada , Akira Asai , Takeshi Takagi , Akira Inoue , Yoshio Kawashima
- 申请人地址: JP Osaka
- 专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人地址: JP Osaka
- 优先权: JPJP2003-169249 20030613
- 主分类号: H01L21/8238
- IPC分类号: H01L21/8238 ; H01L29/94
摘要:
A semiconductor integrated circuit fabrication method according to this invention includes: a step of forming a pair of first device forming regions and a pair of second device forming regions in a surface layer portion of a semiconductor substrate by surrounding each of the regions by device isolation; a step of forming a first oxide film covering the surface of the semiconductor substrate after the preceding step; a step of removing an intended portion of the first oxide film to expose the pair of second device forming regions; a step of forming a pair of heterojunction structures, by selective epitaxial growth, on the pair of second device forming regions thus exposed; a step of forming a second oxide film covering the surface of the substrate after the preceding step; and a step of forming a pair of gate electrodes above each of the pair of first device forming regions and the pair of second device forming regions, whereby a normal complementary MOS transistor and a heterojunction complementary MOS transistor are eventually formed in the pair of first device forming regions and the pair of second device forming regions, respectively.
公开/授权文献
- US07564073B2 CMOS and HCMOS semiconductor integrated circuit 公开/授权日:2009-07-21
信息查询
IPC分类: