Invention Grant
- Patent Title: Semiconductor equipment regulation method and semiconductor device fabrication method
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Application No.: US17455515Application Date: 2021-11-18
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Publication No.: US12002689B2Publication Date: 2024-06-04
- Inventor: Xifei Bao , Runsheng Shen
- Applicant: CHANGXIN MEMORY TECHNOLOGIES, INC.
- Applicant Address: CN Hefei
- Assignee: Changxin Memory Technologies, Inc.
- Current Assignee: Changxin Memory Technologies, Inc.
- Current Assignee Address: CN Hefei
- Agency: Cooper Legal Group, LLC
- Priority: CN 2010547902.2 2020.06.16
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L21/67 ; H10B12/00

Abstract:
The present application relates to a semiconductor equipment regulation method, including: providing a simulated wafer; placing the simulated wafer in an etching chamber, and conditioning a temperature in the chamber by using a temperature control device while the simulated wafer is etched by using an etching gas; during the etching process, forming a polymer layer on a surface of each etch hole; acquiring a thickness distribution map of the polymer layer in the entire simulated wafer; comparing the acquired thickness distribution map with a target thickness distribution map; and adjusting a temperature control effect through using the temperature control device on each region of the simulated wafer according to a result of the comparison, so as to adjust thickness uniformity of the polymer layer in the entire wafer.
Public/Granted literature
- US20220076969A1 SEMICONDUCTOR EQUIPMENT REGULATION METHOD AND SEMICONDUCTOR DEVICE FABRICATION METHOD Public/Granted day:2022-03-10
Information query
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