The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2025
Filed:
Jan. 12, 2022
Yangtze Memory Technologies Co., Ltd., Hubei, CN;
Gonglian Wu, Hubei, CN;
Yonggang Yang, Hubei, CN;
Xianglin Lv, Hubei, CN;
Rong Xu, Hubei, CN;
Yuping Xia, Hubei, CN;
Kaiyuan Liu, Hubei, CN;
Jun Li, Hubei, CN;
Zhenzhen Zhang, Hubei, CN;
Jingyu Bai, Hubei, CN;
Yangtze Memory Technologies Co., Ltd., Wuhan, CN;
Abstract
Embodiments of wet processing systems and methods for uniform wet processing are disclosed. A method described in the present disclosure includes measuring one or more wafer characteristics of a wafer using a plurality of detectors and determining a wafer profile of the wafer based on the measured one or more wafer characteristics. The method also includes setting first and second sets of wet processing parameters of a wet processing system for respective first and second wafer regions based on the wafer profile, where a value of at least one wet processing parameter is different between the first and second sets of wet processing parameters. The method further includes performing wet processing on the wafer by dispensing one or more chemicals onto the first and second wafer regions according to the respective first and second sets of wet processing parameters.