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. 09, 1993
Filed:
Oct. 09, 1990
David N Bull, Rochester, NY (US);
Edward J Ozimek, Penfield, NY (US);
Terry Tarn, Pittsford, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
The present invention relates to a solid state assembly having a solid state device bonded to a terminal board of an insulating material having a plurality of metal terminal pads thereon and arranged in a pattern. A metal bump is on each of the terminal pads of the terminal plate with an amalgam layer covering at least a top of each bump. The solid state device has a plurality of metal terminal pads thereon. The solid state device is mounted on the terminal board with each of its terminal pads being seated on the amalgam of each bump on the terminal board. The assembly is formed by placing some amalgam on each of the bumps on the terminal plate. The solid state device is then mounted on the terminal plate and the amalgam is hardened, such as by heating at a low temperature, to bond the amalgam to the bumps and the solid state device terminal plates. Once the device is bonded to the terminal board, the temperature the assembly is subject to can be higher than the temperature used for the bonding operation without causing any harm to the bond.