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:
Jul. 28, 2020
Filed:
Sep. 18, 2018
Johnstech International Corporation, Minneapolis, MN (US);
John Nelson, Brooklyn Park, MN (US);
Ranauld Perez, North Hills, CA (US);
Jeffrey Sherry, Savage, MN (US);
Michael Andres, Inver Grove Heights, MN (US);
David Johnson, Wayzata, MN (US);
JOHNSTECH INTERNATIONAL CORPORATION, Minneapolis, MN (US);
Abstract
The terminals of a device under test (DUT) are temporarily electrically connected to corresponding contact pads on a load board by a series of electrically conductive pin pairs. The pin pairs are protected against damage from balls on a DUT by a protective ball guide which includes recesses for receiving part of the ball but prevents the ball from driving the pins beyond a limited range. The ball guide provides fine alignment horizontally and vertically enabling stable electrical performance.