Invention Grant
- Patent Title: CMOS fabrication process
- Patent Title (中): CMOS制作工艺
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Application No.: US12696215Application Date: 2010-01-29
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Publication No.: US08125035B2Publication Date: 2012-02-28
- Inventor: Mahalingam Nandakumar , Song Zhao , Amitabh Jain
- Applicant: Mahalingam Nandakumar , Song Zhao , Amitabh Jain
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Jacqueline J. Garner; Wade J. Brady III; Frederick J. Telecky Jr.
- Main IPC: H01L27/092
- IPC: H01L27/092

Abstract:
Ultra high temperature (UHT) anneals above 1200 C for less than 100 milliseconds for PMOS transistors reduce end of range dislocations, but are incompatible with stress memorization technique (SMT) layers used to enhance NMOS on-state current. This invention reverses the conventional order of forming the NMOS first by forming PSD using carbon co-implants and UHT annealing them before implanting the NSD and depositing the SMT layer. End of range dislocation densities in the PSD space charge region below 100 cm−2 are achieved. Tensile stress in the PMOS from the SMT layer is significantly reduced. The PLDD may also be UHT annealed to reduce end of range dislocations close to the PMOS channel.
Public/Granted literature
- US20100133624A1 CMOS Fabrication Process Public/Granted day:2010-06-03
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