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:
Aug. 20, 2013
Filed:
Dec. 21, 2010
Benjamin N. Eldridge, Danville, CA (US);
Gaetan L. Mathieu, Varennes, CA;
Benjamin N. Eldridge, Danville, CA (US);
Gaetan L. Mathieu, Varennes, CA;
FormFactor, Inc., Livermore, CA (US);
Abstract
A probe head can comprise a substrate and electrically conductive structures extending from opposite surfaces of the substrate. The probe head can be made by forming frame structures each comprising a frame to which a row of the conductive structures is coupled. The frame structures can be placed in a stack. A compressible shim or a curable adhesive can be provided between adjacent frames in the stack to control a distance between the contact ends of the conductive structures in adjacent rows of the conductive structures. The frames can include cavities that form a mold while the frames are in the stack, and the substrate can be formed by introducing a moldable material into the mold. After the moldable material hardens, the frame can be removed, leaving the conductive structures embedded in the substrate.