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:
Feb. 16, 2016
Filed:
Jun. 19, 2013
Johnstech International Corporation, Minneapolis, MN (US);
Jathan Edwards, Afton, MN (US);
Charles Marks, Minneapolis, MN (US);
Brian Halvorson, St. Paul, MN (US);
Johnstech International Corporation, Minneapolis, MN (US);
Abstract
A testing device for wafer level testing of IC circuits is disclosed. An upper and lower pin () are configured to slide relatively to each other and are held in electrically biased contact by an elastomer (). The elastomer is precompressed from its natural rest state between a top () plate and a bottom (). Pre compression improves the resilient response of the pins. The pin crows () are maintained relatively coplanar by the engagement of at least one flang (-) against an up-stop surfaceof plate, thereby insuring coplanarity of the crowns. The pin guide () is maintained in alignment with the retainerby establishing a registration corner () and driving the guide into the corner by elastomers in at least one diagonally opposite corner.