Invention Grant
- Patent Title: Phase shift mask and electronic component manufacturing method
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Application No.: US16343756Application Date: 2018-10-26
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Publication No.: US11385537B2Publication Date: 2022-07-12
- Inventor: Xiaoxiang Zhang , Mingxuan Liu , Huibin Guo , Yongzhi Song , Xiaolong Li , Wenqing Xu , Zumou Wu
- Applicant: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD. , BOE TECHNOLOGY GROUP CO., LTD.
- Applicant Address: CN Beijing; CN Beijing
- Assignee: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.,BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.,BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee Address: CN Beijing; CN Beijing
- Agency: Syncoda LLC
- Agent Feng Ma
- Priority: CN201810142878.7 20180211
- International Application: PCT/CN2018/112152 WO 20181026
- International Announcement: WO2019/153796 WO 20190815
- Main IPC: G03F1/32
- IPC: G03F1/32 ; G03F1/30 ; G03F1/36 ; G03F1/26 ; H01L21/027

Abstract:
A phase shift mask includes a transparent substrate and light-shielding portions. The light-shielding portions include a first light-shielding portion, and over one side of it, a first compensating light-shielding portion, which has a first distance to the first light-shielding portion and a first width smaller than a resolution of an exposing machine utilized for an exposure process using the phase shift mask. The light-shielding portions can further include a second compensating light-shielding portion, having a second distance to another side of the first light-shielding portion and a second width smaller than the resolution of the exposing machine. The first distance and the second distance respectively allow the first and the second compensating light-shielding portion to reduce an exposure at a region corresponding to two sides of the first light-shielding portion during the exposure process. A method manufacturing an electronic component utilizing the phase shift mask is also provided.
Public/Granted literature
- US20210356856A1 PHASE SHIFT MASK AND ELECTRONIC COMPONENT MANUFACTURING METHOD Public/Granted day:2021-11-18
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