Invention Grant
US09245803B1 Hybrid wafer dicing approach using a bessel beam shaper laser scribing process and plasma etch process
有权
混合晶圆切片方法采用贝塞尔光束成形机激光划线工艺和等离子体蚀刻工艺
- Patent Title: Hybrid wafer dicing approach using a bessel beam shaper laser scribing process and plasma etch process
- Patent Title (中): 混合晶圆切片方法采用贝塞尔光束成形机激光划线工艺和等离子体蚀刻工艺
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Application No.: US14517287Application Date: 2014-10-17
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Publication No.: US09245803B1Publication Date: 2016-01-26
- 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: Blakely Sokoloff Taylor Zafman LLP
- Main IPC: H01L21/78
- IPC: H01L21/78 ; H01L21/308 ; H01L21/3065 ; H01L21/67 ; H01J37/32 ; B23K26/36 ; B23K26/16

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 Bessel beam shaper 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.
Information query
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