Invention Grant
- Patent Title: Semiconductor device with localized stressor
- Patent Title (中): 具有局部应激源的半导体器件
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Application No.: US11738968Application Date: 2007-04-23
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Publication No.: US07825477B2Publication Date: 2010-11-02
- Inventor: Ru-Shang Hsiao , Min Cao , Chung-Te Lin , Ta-Ming Kuan , Cheng-Tung Hsu
- Applicant: Ru-Shang Hsiao , Min Cao , Chung-Te Lin , Ta-Ming Kuan , Cheng-Tung Hsu
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Slater & Matsil, L.L.P.
- Main IPC: H01L23/62
- IPC: H01L23/62 ; H01L29/78 ; H01L21/0234

Abstract:
A semiconductor device, such as a PMOS transistor, having localized stressors is provided. Recesses are formed on opposing sides of gate electrodes such that the recesses are offset from the gate electrode by dummy spacers. The recesses are filled with a stress-inducing layer. The dummy recesses are removed and lightly-doped drains are formed. Thereafter, new spacers are formed and the stress-inducing layer is recessed. One or more additional implants may be performed to complete source/drain regions. In an embodiment, the PMOS transistor may be formed on the same substrate as one or more NMOS transistors. Dual etch stop layers may also be formed over the PMOS and/or the NMOS transistors.
Public/Granted literature
- US20080258233A1 Semiconductor Device with Localized Stressor Public/Granted day:2008-10-23
Information query
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