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:
Nov. 25, 2003
Filed:
Dec. 07, 2000
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/146 ;
U.S. Cl.
CPC ...
H01L 2/146 ;
Abstract
This invention relates to a composite member separating method in which a first member ( ) having a separation layer ( ) and a transfer layer ( ) on the separation layer ( ) is bonded to a second member ( ) is separated at a position different from the bonding interface between the first member ( ) and the second member ( ), the method comprising the steps of, applying a force asymmetric with respect to the interface to the end portion of the composite member to form a crack ( A) that runs from the surface of the first member ( ) to the separation layer ( ) through the transfer layer ( ), and then, growing the crack is grown along the separation layer ( ) to completely separate the composite member.