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. 06, 2005
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 inspecting at a high speed by using a sensor having flexibility and excellent productivity. When a circuit boardas a subject of inspection is selected, CAD data of the circuit wiringon this circuit boardis analyzed to detect the position of the end of each wiring. Then, two or more sensor elements adjacent to the end (from which the voltage variation can be detected) are specified. The switching circuitis controlled to connect the selected sensor elements to an output terminaland to connect the remaining sensor elements to the GND terminalIn this state, when an voltage is applied to one of the selected circuit wirings and then an inspection signal (voltage variation) is output from the output terminalit will be determined that no disconnection exists in the circuit wiring.