Invention Grant
US09412883B2 Methods and apparatus for MOS capacitors in replacement gate process
有权
替代栅极工艺中MOS电容器的方法和装置
- Patent Title: Methods and apparatus for MOS capacitors in replacement gate process
- Patent Title (中): 替代栅极工艺中MOS电容器的方法和装置
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Application No.: US13303083Application Date: 2011-11-22
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Publication No.: US09412883B2Publication Date: 2016-08-09
- Inventor: Pai-Chieh Wang , Tung-Heng Hsieh , Yimin Huang , Chung-Hui Chen
- Applicant: Pai-Chieh Wang , Tung-Heng Hsieh , Yimin Huang , Chung-Hui Chen
- 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, LLP
- Main IPC: H01L29/94
- IPC: H01L29/94 ; H01L27/06 ; H01L27/08 ; H01L49/02

Abstract:
Methods and apparatus for polysilicon MOS capacitors in a replacement gate process. A method includes disposing a gate dielectric layer over a semiconductor substrate; disposing a polysilicon gate layer over the dielectric layer; patterning the gate dielectric layer and the polysilicon gate layer to form a plurality of polysilicon gates spaced by at least a minimum polysilicon to polysilicon pitch; defining a polysilicon resistor region containing at least one of the polysilicon gates and not containing at least one other of the polysilicon gates, which form dummy gates; depositing a mask layer over an inter-level dielectric layer; patterning the mask layer to expose the dummy gates; removing the dummy gates and the gate dielectric layer underneath the dummy gates to leave trenches in the inter-level dielectric layer; and forming high-k metal gate devices in the trenches in the inter-level dielectric layer. An apparatus produced by the method is disclosed.
Public/Granted literature
- US20130126953A1 Methods and Apparatus for MOS Capacitors in Replacement Gate Process Public/Granted day:2013-05-23
Information query
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