Inspecting apparatus and inspecting method for circuit board

Details Inspecting apparatus and inspecting method for circuit board Inspecting apparatus and inspecting method for circuit board

2005-01-11

2005-01-11

Pert, Evan (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S754090

Reexamination Certificate

active

06842026

ABSTRACT:
The present invention provides an apparatus and method for inspecting a circuit board at a high speed. An LCD driver module100as an object to be inspected has an onboard LCD driving LSI110.One circuit-wiring group111is connected to SEG terminals, and another circuit-wiring group112is connected to COM terminals of the LSI110.An inspection apparatus1generates an LSI drive signal and sends it to input terminals113of the LSI110.A pair of sensors2, 3are positioned opposedly to the circuit-wiring groups111, 112,respectively, in a non-contact manner. Each of the sensors2, 3detects voltage changes in the corresponding circuit-wiring group111, 112caused by driving the LSI110,and the detected signals are analyzed by the inspection apparatus1.

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