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. 11, 1979
Filed:
Feb. 23, 1978
Applicant:
Inventors:
Joseph F Wrinn, North Quincy, MA (US);
Mark S Hoffman, Newton Center, MA (US);
Assignee:
Teradyne, Inc., Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 64 ; 324421 ;
Abstract
Circuit board analysis system, featuring, in various aspects, a probe having three equally spaced tips to simultaneously contact a straight portion of a mounted IC lead, circuitry to monitor contact between the tips and the lead, use of very low level test signals while the board is powered up, and test signal injection to determine the absolute values of internal IC resistance.