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:
Jun. 08, 2004
Filed:
Sep. 03, 2002
Applicant:
Inventors:
Raschid J. Bezama, Mahopac, NY (US);
Govindarajan Natarajan, Pleasant Valley, NY (US);
Robert W. Pasco, Wappingers Falls, NY (US);
Assignee:
International Business Machines Corp., Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 1/018 ;
U.S. Cl.
CPC ...
B23K 1/018 ;
Abstract
A method and structure for a chip detach apparatus and method that limits the solder ball maximum shear rate and, more particularly, that delays the application of shear force until a minimum predefined temperature is reached. The chip detach apparatus and method can be applied to chips with high solder ball counts, chips with small solder ball sizes, and chips with weak surface strength. The chip detach apparatus and method measures and accounts for variability in the electronic module manufacturing and assembly.