Invention Grant
- Patent Title: Hybrid wafer dicing approach using a rotating beam laser scribing process and plasma etch process
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Application No.: US15081296Application Date: 2016-03-25
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Publication No.: US09852997B2Publication Date: 2017-12-26
- Inventor: Jungrae Park , Wei-Sheng Lei , James S. Papanu , Brad Eaton , Ajay Kumar
- 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: H01L21/00
- IPC: H01L21/00 ; H01L23/544 ; H01L21/78 ; B23K26/359 ; B23K26/064 ; B23K26/364

Abstract:
Methods of dicing semiconductor wafers, each wafer having a plurality of integrated circuits, are described. In an example, a method of dicing a semiconductor wafer having a plurality of integrated circuits involves forming 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 rotating laser beam 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 plasma etched through the gaps in the patterned mask to singulate the integrated circuits.
Public/Granted literature
- US20170278801A1 HYBRID WAFER DICING APPROACH USING A ROTATING BEAM LASER SCRIBING PROCESS AND PLASMA ETCH PROCESS Public/Granted day:2017-09-28
Information query
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