Invention Grant
- Patent Title: Uniform masking for wafer dicing using laser and plasma etch
- Patent Title (中): 使用激光和等离子体蚀刻的晶圆切割均匀掩模
-
Application No.: US13917366Application Date: 2013-06-13
-
Publication No.: US09048309B2Publication Date: 2015-06-02
- Inventor: Mohammad Kamruzzaman Chowdhury , Wei-Sheng Lei , Todd Egan , Brad Eaton , Madhava Rao Yalamanchili , Ajay Kumar
- Applicant: Mohammad Kamruzzaman Chowdhury , Wei-Sheng Lei , Todd Egan , Brad Eaton , Madhava Rao Yalamanchili , Ajay Kumar
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Blakely Sokoloff Taylor Zafman LLP
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L21/78

Abstract:
Uniform masking for wafer dicing using laser and plasma etch is described. In an example, a method of dicing a semiconductor wafer having a plurality of integrated circuits having bumps or pillars includes uniformly spinning on a mask above the semiconductor wafer, the mask composed of a layer covering and protecting the integrated circuits. The mask is then patterned with a laser scribing process to provide a patterned mask with gaps, exposing regions of the semiconductor wafer between the integrated circuits. The semiconductor wafer is then etched through the gaps in the patterned mask to singulate the integrated circuits.
Public/Granted literature
- US20140017879A1 UNIFORM MASKING FOR WAFER DICING USING LASER AND PLASMA ETCH Public/Granted day:2014-01-16
Information query
IPC分类: