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, 2006
Filed:
Jun. 13, 2001
Shogo Ishioka, Fukayasu-gun, JP;
Shuji Yamaoka, Fukuyama, JP;
Shogo Ishioka, Fukayasu-gun, JP;
Shuji Yamaoka, Fukuyama, JP;
OHT, Inc., Hiroshima, JP;
Abstract
The present invention provides an inspection apparatus and an inspection method, capable of, when supplying an inspection signal to a circuit wiring, eliminating any need for a pin to be brought into contact with the circuit wiring and detecting any defects including an invisible microscopic defect. An inspection apparatus A for inspecting a circuit wiring of a circuit boardcomprises a conductive memberadapted to be disposed on the side of one of surfaces of the circuit boardand to be supplied with an inspection signal, a signal sourcefor supplying the inspection signal to the conductive member, a sensor unitincluding a plurality of cellsto be disposed the opposed to the conductive memberon the side of the other surface of the circuit board, and a computerfor acquiring each signal appearing at the cellsin response to the inspection signal supplied to the conductive member