Semiconductor device manufacturing: process – Radiation or energy treatment modifying properties of...
Reexamination Certificate
2008-07-08
2008-07-08
Vu, David (Department: 2818)
Semiconductor device manufacturing: process
Radiation or energy treatment modifying properties of...
C438S795000, C438S033000, C438S068000, C257SE21599
Reexamination Certificate
active
11261600
ABSTRACT:
A method of carrying out the laser processing of a wafer with a laser beam processing machine comprising a chuck table for holding a wafer, a laser beam application means for applying a laser beam to the wafer held on the chuck table and a processing-feed means for processing-feeding the chuck table and the laser beam application means relative to each other, comprising the steps of a wafer affixing step for putting the wafer on the surface of a protective tape mounted on an annular frame, a wafer holding step for holding the wafer put on the protective tape on the chuck table, and a laser beam application step for applying a laser beam having a predetermined wavelength from the laser beam application means to the wafer held on the chuck table and processing-feeding the wafer with the processing-feed means, wherein the protective tape is made of a material which transmits the laser beam having a predetermined wavelength applied from the laser beam application means.
REFERENCES:
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patent: 6580054 (2003-06-01), Liu et al.
patent: 2004/0164061 (2004-08-01), Takeuchi et al.
patent: 2006/0035444 (2006-02-01), Nakamura et al.
patent: 2003-320466 (2003-11-01), None
Furuta Kenji
Hoshino Hitoshi
Kitahara Nobuyasu
Oba Ryugo
Takeda Noburu
Disco Corporation
Nguyen Thinh T
Smith , Gambrell & Russell, LLP
Vu David
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