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:
Dec. 17, 1991
Filed:
Jan. 31, 1991
Michael J Bertram, Austin, TX (US);
Daniel M Andrews, Austin, TX (US);
Thomas A Bishop, Austin, TX (US);
Microelectronics and Computer Technology Corporation, Austin, TX (US);
Abstract
A desoldering material with an opening or window shaped so that the base of an electronic component can fit inside the opening while the desoldering material simultaneously contacts all solder joints which bond the component's outer leads to pads on a surface. A first adhesive secures the base to the surface, a second adhesive secures a retraction device to the base, the first adhesive is heated and softened without softening the second adhesive, and the retraction device removes the desoldered component from the surface. The invention is well suited to removing tape-automated-bonded integrated circuits adhesively attached to high density multichip module substrates.