Invention Grant
- Patent Title: Analysis method for semiconductor device
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Application No.: US16829026Application Date: 2020-03-25
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Publication No.: US11243245B2Publication Date: 2022-02-08
- Inventor: Ping-Hsun Su
- Applicant: Shanghai Huali Integrated Circuit Mfg. Co., Ltd.
- Applicant Address: CN Shanghai
- Assignee: Shanghai Huali Integrated Circuit Mfg. Co., Ltd.
- Current Assignee: Shanghai Huali Integrated Circuit Mfg. Co., Ltd.
- Current Assignee Address: CN Shanghai
- Agency: Adsero IP
- Priority: CN201910250826.6 20190329
- Main IPC: G01R31/26
- IPC: G01R31/26 ; H01L21/66 ; G06F17/40

Abstract:
The present disclosure provides an analysis method of a semiconductor device, and the semiconductor device comprises a plurality of HKMG fin field effect transistors and a wafer on which the plurality of HKMG fin field effect transistors are located, and the analysis method comprises: performing acceptance testing on the wafer to be tested; constructing an N-type model based on the position of each N-type transistor at the surface of the wafer to be tested and the corresponding acceptance test result, constructing a P-type model based on the position of each P-type transistor at the surface of the wafer to be tested and the corresponding acceptance test result, and constructing an N/P ratio model corresponding to the surface of the wafer to be tested based on the N-type model and the P-type model; and identifying the N/P ratio model based on a preset standard wafer model to determine whether the wafer to be tested is compliant based on the N/P ratio model. According to the analysis method provided by the present disclosure, it is possible to find a non-compliant wafer among a plurality of wafers, thereby enabling the subsequent targeted parameter analysis and improving the efficiency of optimizing the process scheme.
Public/Granted literature
- US20200309843A1 ANALYSIS METHOD FOR SEMICONDUCTOR DEVICE Public/Granted day:2020-10-01
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