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.

Date of Patent:
Sep. 01, 2020

Filed:

Sep. 07, 2018
Applicant:

Johnstech International Corporation, Minneapolis, MN (US);

Inventors:

David T. Skodje, Minneapolis, MN (US);

Mike W. Andres, Inver Grove Heights, MN (US);

Jeffrey C. Sherry, Savage, MN (US);

Assignee:

Johnstech International Corporation, Minneapolis, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 1/067 (2006.01); G01R 31/00 (2006.01); G01R 1/073 (2006.01);
U.S. Cl.
CPC ...
G01R 1/07342 (2013.01);
Abstract

A high density thin walled test device testing chips/ICs is disclosed. A housing includes a slot for a contact pin and a pair of elastomers. The pin has an arcuate recess to receive part of the elastomer. Likewise the housing includes a channel to receive part of the elastomer. The recess and channel together partially surround the elastomer but not completely to allow shear forces and expansion space for the elastomer as it is compressed by the channel and recess. In addition, a front channel extends from the top surface of the housing toward the bottom surface but leaving a floor to support the elastomer so that it does not warp the housing when compressed. Further, the channel or the recess may include retainers which prevent the elastomer from moving out of position when the pin is in an uncompressed state.


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