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:
Jul. 31, 2007
Filed:
Jun. 21, 2004
Applicants:
Kevin Weaver, San Jose, CA (US);
Chetan S. Paydenkar, Mountain View, CA (US);
Inventors:
Kevin Weaver, San Jose, CA (US);
Chetan S. Paydenkar, Mountain View, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); G01R 31/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a stacked die integrated circuit structure, the structure can subsequently be tested by removing any packaging material and separating the die from a die paddle and from each other. The separation can involve the use of chemicals or heat, with or without the use of mechanical force. One aspect of the invention includes making use of specifically chosen adhesives to secure the die to the die paddle and to each other, so that any subsequent removal can readily be achieved.