Invention Grant
- Patent Title: Semiconductor device including corner recess
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Application No.: US15630666Application Date: 2017-06-22
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Publication No.: US10418334B2Publication Date: 2019-09-17
- Inventor: Hang Zhang , Weili Wang , Junrong Yan , Kim Lee Bock , Chee Keong Chin , Chong Un Tan , Xin Tian
- Applicant: SANDISK SEMICONDUCTOR (SHANGHAI) CO., LTD.
- Applicant Address: CN Shanghai
- Assignee: SanDisk Semiconductor (Shanghai) Co. Ltd.
- Current Assignee: SanDisk Semiconductor (Shanghai) Co. Ltd.
- Current Assignee Address: CN Shanghai
- Agency: Vierra Magen Marcus LLP
- Priority: CN201611187693 20161220
- Main IPC: H01L21/304
- IPC: H01L21/304 ; H01L23/00 ; H01L25/065 ; H01L21/78 ; H01L21/683

Abstract:
A semiconductor die is disclosed including corner recesses to prevent cracking of the semiconductor die during fabrication. Prior to dicing the semiconductor die from the wafer, recesses may be formed in the wafer at corners between any pair of semiconductor die. The recesses may be formed by a laser or photolithographic processes in the kerf area between semiconductor die. Once formed, the corner recesses prevent cracking and damage to semiconductor die which could otherwise occur at the corners of adjacent semiconductor die as the adjacent semiconductor die move relative to each other during the backgrind process.
Public/Granted literature
- US20180174983A1 SEMICONDUCTOR DEVICE INCLUDING CORNER RECESS Public/Granted day:2018-06-21
Information query
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