SELECTIVE COUPLING OF VOLTAGE FEEDS FOR BODY BIAS VOLTAGE IN AN INTEGRATED CIRCUIT DEVICE
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United States of America Patent
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Feb 2, 2016
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Dec 31, 2002
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Abstract
An integrated circuit device having a body bias voltage mechanism. The integrated circuit comprises a resistive structure disposed therein for selectively coupling either a body bias voltage or a power supply voltage to biasing wells. A first pad for coupling with a first externally disposed pin can optionally be provided. The first pad is for receiving an externally applied body bias voltage. Circuitry for producing a body bias voltage can be coupled to the first pad for coupling a body bias voltage to a plurality of biasing wells disposed on the integrated circuit device. If a body bias voltage is not provided, the resistive structure automatically couples a power supply voltage to the biasing wells. The power supply voltage may be obtained internally to the integrated circuit.
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