Test board provided with a capacitor charging circuit and relate

Details Test board provided with a capacitor charging circuit and relate Test board provided with a capacitor charging circuit and relate

1997-08-01

2000-04-18

Do, Diep N.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324754, 324755, G01R 104, G01R 3102

Patent

active

060519681

ABSTRACT:
A test board is provided to reduce the test time for integrated circuits required by the necessity to stabilize bias voltages applied to IC devices. The test board includes a capacitor connected to specific input terminals of the IC device and a capacitor charging circuit connected between the input terminals of the IC device and the capacitor charging circuit via switches. A testing method using this circuit includes the steps of mounting a test board to a tester, placing the IC device onto the test board, charging the capacitor by driving the capacitor charging circuit, and testing the IC devices according to test items. The test board used in this method includes application circuits for applying bias voltages to the IC device, a capacitor connected between the IC device and a ground terminal, and a capacitor charging circuit for charging the capacitor.

REFERENCES:
patent: 3855527 (1974-12-01), Masopust, Jr.
patent: 4677375 (1987-06-01), Nakaie et al.
patent: 4743837 (1988-05-01), Herzog
patent: 4812755 (1989-03-01), Toshiyuki et al.
patent: 5146174 (1992-09-01), Toliver et al.
patent: 5523699 (1996-06-01), Miyagawa

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