Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Making plural separate devices
Reexamination Certificate
2011-04-12
2011-04-12
Le, Dung A. (Department: 2818)
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
Making plural separate devices
C438S033000, C438S068000, C438S460000
Reexamination Certificate
active
07923297
ABSTRACT:
Size of a chipping is made small, suppressing blinding of a blade, when performing dicing of a wafer.When cutting a wafer, cutting is performed so that the portion of a V character-shaped shoulder may enter below the front surface of a wafer (depth Z2from a substrate front surface) using the metal-bond blade which includes the abrasive particle whose fineness number is more than #3000, and whose point is V character form. By processing it in this way, cutting resistance goes up and blinding of a blade can be prevented. Hereby, the size of a chipping can be suppressed small, preventing blinding of a blade.
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Le Dung A.
McDermott Will & Emery LLP
Renesas Electronics Corporation
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