Integrated circuit with channel length indicator

Details Integrated circuit with channel length indicator Integrated circuit with channel length indicator

1988-02-25

1988-12-06

Smith, Jerry

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324133, G01R 3126

Patent

active

047898259

ABSTRACT:
An integrated circuit includes first and second field effect transistors having differing channel lengths, and a means for comparing the channel currents flowing therethrough. An excessive difference of currents indicates "short channel" effects, which can degrade performance. A signal flag indicating this condition may be provided to a test pad on the chip, or used to disable operation of the integrated circuit, or otherwise used to provide an indication.

REFERENCES:
patent: 3801910 (1974-04-01), Quinn
patent: 4096430 (1978-06-01), Waldron
patent: 4278988 (1981-07-01), Clifford et al.
patent: 4305011 (1981-12-01), Audaire et al.
patent: 4346344 (1982-08-01), Blauschild
patent: 4454467 (1984-06-01), Sakaguchi

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