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:
Oct. 14, 1997
Filed:
Jun. 07, 1995
John Acocella, Hopewell Junction, NY (US);
Donald Ray Banks, Eau Claire, WI (US);
Joseph Angelo Benenati, Hopewell Junction, NY (US);
Thomas Caulfield, Croton Fall, NY (US);
John Saunders Corbin, Jr, Austin, TX (US);
Karl Grant Hoebener, Georgetown, TX (US);
David P Watson, Beaverton, OR (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Two substrates are produced each with a planar, mirror-image matrix of metal contacts in a surface wiring layer. The substrates are positioned with the matrices in parallel confrontation which defines pairs of confronting contacts. A metal ball is positioned between each pair of contacts with a respective volume of joining material between the ball and each of the two respective contacts. The volumes of joining material are simultaneously melted to allow surface tension to align the substrates and to accurately center the balls between each respective pairs of contacts in a plane defines by the matrix of balls.