Invention Grant
- Patent Title: Automatic kerf offset mapping and correction system for laser dicing
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Application No.: US16908537Application Date: 2020-06-22
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Publication No.: US11901232B2Publication Date: 2024-02-13
- Inventor: Karthik Balakrishnan , Jungrae Park , Zavier Zai Yeong Tan , Sai Abhinand , James S. Papanu
- Applicant: Applied Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Schwabe, Williamson & Wyatt, P.C.
- Main IPC: H01L21/78
- IPC: H01L21/78 ; H01L21/3065 ; H01L21/027

Abstract:
Embodiments of the present disclosure include methods of determining scribing offsets in a hybrid laser scribing and plasma dicing process. In an embodiment, the method comprises forming a mask above a semiconductor wafer. In an embodiment, the semiconductor wafer comprises a plurality of dies separated from each other by streets. In an embodiment, the method further comprises patterning the mask and the semiconductor wafer with a laser scribing process. In an embodiment, the patterning provides openings in the streets. In an embodiment, the method further comprises removing the mask, and measuring scribing offsets of the openings relative to the streets.
Public/Granted literature
- US20210398853A1 AUTOMATIC KERF OFFSET MAPPING AND CORRECTION SYSTEM FOR LASER DICING Public/Granted day:2021-12-23
Information query
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