- 专利标题: Hybrid wafer dicing approach using a rotating beam laser scribing process and plasma etch process
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申请号: US15081296申请日: 2016-03-25
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公开(公告)号: US09852997B2公开(公告)日: 2017-12-26
- 发明人: Jungrae Park , Wei-Sheng Lei , James S. Papanu , Brad Eaton , Ajay Kumar
- 申请人: APPLIED MATERIALS, INC.
- 申请人地址: US CA Santa Clara
- 专利权人: Applied Materials, Inc.
- 当前专利权人: Applied Materials, Inc.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Schwabe, Williamson & Wyatt, P.C.
- 主分类号: H01L21/00
- IPC分类号: H01L21/00 ; H01L23/544 ; H01L21/78 ; B23K26/359 ; B23K26/064 ; B23K26/364
摘要:
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.
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