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. 05, 2005
Filed:
Jul. 22, 2003
Jerry Ihor Tustaniwskyj, Mission Viejo, CA (US);
James Wittman Babcock, Escondido, CA (US);
Jerry Ihor Tustaniwskyj, Mission Viejo, CA (US);
James Wittman Babcock, Escondido, CA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A chip tester includes a heat-exchanger which regulates the temperature of an integrated circuit chip that is being tested by pressing against the chip. The heat-exchanger incorporates an electric heater and a heatsink that are joined together with a layer of attach material. The layer of attach material is limited to one that can be melted, at least partially, at a predetermined temperature, and re-solidified, multiple times. A spacer is in the heat-exchanger which stays solid at the predetermined temperature and which keeps the layer of attach material at a constant thickness.