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System for controlling switch transistor performance

  • US 20060044043A1
  • Filed: 08/24/2004
  • Published: 03/02/2006
  • Est. Priority Date: 08/24/2004
  • Status: Active Grant
First Claim
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1. A method for controlling performance of a switch transistor, the method comprising the steps of:

  • providing a switch transistor, having a first terminal coupled to a first supply voltage, a second terminal coupled to an internal voltage rail, a gate coupled to an activation signal source, and a body coupled to a bias signal source;

    providing a bias signal sufficient to induce a negative body bias across the switch transistor when that transistor is shut off;

    providing a bias signal sufficient to induce a negative body bias across the switch transistor for a period of time following assertion of an activation signal from the activation signal source that turns the switch transistor on; and

    providing a bias signal sufficient to induce a positive body bias across the switch transistor after the period of time.

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