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:
Dec. 24, 1991
Filed:
Dec. 19, 1988
Edward S Hoyt, Williston, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A probe for testing integrated circuit wafers is disclosed herein. The probe comprises a ceramic body having an extended voltage contact on the upper most surface, an extended ground contact on the lower most surface, sets of interdigitated internal metallic plates, one set of plates beginning at the voltage contact and extending part way into the body and the other set of plates beginning at the ground contact and extending interdigitally into the body between the other set of plates, but separated therefrom by the material of the body and a needle-like member contacts which connected to one of the needle-like members has a cantilevered tip adapted to contact a semiconductor circuit interconnection pad.