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:
Mar. 04, 2003
Filed:
Oct. 17, 2001
Raymond A. Jackson, Beacon, NY (US);
John U. Knickerbocker, Hopewell Junction, NY (US);
Thomas E. Lombardi, Poughkeepsie, NY (US);
Amy B. Ostrander, Wappingers Falls, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A structure and method for converting a standard ceramic carrier into a temporary chip attach carrier, wherein the device comprises a substrate, a plurality of metal vias interspersed in the substrate, a carrier layer further comprising a cavity dam with a plurality of holes filled with conductive adhesive. The process of forming the temporary chip attach carrier comprises applying a secondary layer further comprising a plurality of holes on a substrate, applying conductive adhesive in the holes, curing the adhesive, placing a chip containing C4 solder bumps onto the secondary layer, applying a force onto the chip, testing and burning-in the secondary layer, removing the force from the chip, separating the chip from the secondary layer, and then re-using the secondary layer.