发明授权
- 专利标题: Embedded stressor structure and process
- 专利标题(中): 嵌入式应力器结构与过程
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申请号: US11297522申请日: 2005-12-08
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公开(公告)号: US07939413B2公开(公告)日: 2011-05-10
- 发明人: Yung Fu Chong , Zhijiong Luo , Joo Chan Kim , Brian Joseph Greene , Kern Rim
- 申请人: Yung Fu Chong , Zhijiong Luo , Joo Chan Kim , Brian Joseph Greene , Kern Rim
- 申请人地址: KR SG Singapore
- 专利权人: Samsung Electronics Co., Ltd.,Chartered Semiconductor Manufacturing, Ltd.,International Business Machines Corp (IBM)
- 当前专利权人: Samsung Electronics Co., Ltd.,Chartered Semiconductor Manufacturing, Ltd.,International Business Machines Corp (IBM)
- 当前专利权人地址: KR SG Singapore
- 代理机构: Horizon IP Pte Ltd
- 主分类号: H01L21/336
- IPC分类号: H01L21/336
摘要:
An example embodiments are structures and methods for forming an FET with embedded stressor S/D regions (e.g., SiGe), a doped layer below the embedded S/D region adjacent to the isolation regions, and a stressor liner over reduced spacers of the FET gate. An example method comprising the following. We provide a gate structure over a first region in a substrate. The gate structure is comprised of gate dielectric, a gate, and sidewall spacers. We provide isolation regions in the first region spaced from the gate structure; and a channel region in the substrate under the gate structure. We form S/D recesses in the first region in the substrate adjacent to the sidewall spacers. We form S/D stressor regions filling the S/D recesses. The S/D stressor regions can be thicker adjacent to the gate structure than adjacent to the isolation regions; We implant dopant ions into the S/D stressor regions and into the substrate below the S/D stressor regions adjacent to the isolation regions to form upper stressor doped regions.
公开/授权文献
- US20070132038A1 Embedded stressor structure and process 公开/授权日:2007-06-14
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