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:
Aug. 16, 1994
Filed:
Feb. 04, 1992
Arthur Bross, Poughkeepsie, NY (US);
Thomas J Walsh, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
There is disclosed a high density electronic connector assembly (system) having a first insulating portion and a second insulating portion adapted to be mated together and held in precise dimensional relation to each other with a suitable steady force. There are a plurality of contact members projecting down beneath the first portion on very close centers. There is a like plurality of socket holes in the second portion, with a respective printed-circuit (conductor) land at the bottom of each hole. Each land is adapted to act as a spring element to establish a minimum normal contact force. Seated in each hole is a small metal ball. Each ball is adapted to press against a respective contact member of the first portion when the upper and lower portions are fully mated. There is also disclosed a method of seating and re-flow soldering the balls to the respective lands in the socket holes.