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:
Nov. 21, 1995
Filed:
Nov. 01, 1993
William M Williams, Gilbert, AZ (US);
Anthony Angelo, Gilbert, AZ (US);
Gregory L Westbrook, Chandler, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An integrated circuit test system provides a quick change flexible circuit membrane (214). The flexible circuit membrane is a quadrant based design which allows steep launch angles away from a rectangular die under test (112). The flexible circuit membrane is edge guided (308,309) for positioning and concentric alignment in a probe tooling fixture (212). The system may include a focusing force member (528) focusing force only at the test point locations in line with the die pad contact positions (512) which allows greater force to be concentrated on the contact area, and helps to alleviate the debris tracking or 'dust mop' effect. Additionally, a relieved area (620) may be provided on the pressure applicator (616) to prevent membrane droop or the pillowing effects.