The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2012
Filed:
Nov. 17, 2008
Applicants:
Masayuki Yamamoto, Ibaraki, JP;
Yukitoshi Hase, Kameyama, JP;
Yasuji Kaneshima, Kameyama, JP;
Inventors:
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 38/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cutter blade is cut-in by being moved towards a deep part of a notch from one open end of the notch while being moved in a forward direction with respect to an outer periphery of a wafer. Immediately before a blade edge reaches the deep part of the notch, cutting movement of the cutter blade is once stopped, reversely moved to a initial piercing position, and thereafter, the cutter blade is moved towards the deep part of the notch from the other open end of the notch while being moved in a reverse direction with respect to the outer periphery of the wafer.