IC card

Details IC card IC card

1996-09-19

1998-10-20

Pitts, Harold

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Records

Conductive

235487, G06K 1906

Patent

active

058250140

ABSTRACT:
An IC card, including a first semiconductor device and a second semiconductor device which obtain power from an information processing device, includes a switching circuit including (a) a resistor which is coupled between a power supply line and the second semiconductor device so that the power voltage is applied to the second semiconductor device gradually, (b) a voltage detection circuit for monitoring the voltage applied to the second semiconductor device, and (c) a transistor which is turned on by a detection signal produced at the voltage detection circuit when the voltage applied to the second semiconductor device exceeds a predetermined value.

REFERENCES:
patent: 5047988 (1991-09-01), Mizuta
patent: 5138142 (1992-08-01), Sanemitsu
Dual Damascene; A ULSI Wiring Technology Jun. 11-12, 1991 VMIC Conference TH-0359-0/91/0000-0144 $01.00 C 1991 IEEE, Carter W. Kaanta, et al, pp. 144-152.

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