Patent ID: 7525367

Claim:
A method for implementing voltage level shifters for integrated circuits comprising: providing an input inverter operating in a domain of a first voltage supply; said input inverter receiving an input signal and providing a first inverted signal output; providing an output inverter coupled to said input inverter and operating in a domain of a second voltage supply higher than the first voltage supply; said output inverter providing an output signal having a voltage level corresponding to the second voltage supply and a logic value corresponding to the input signal; connecting a finisher transistor for leakage current control between the second voltage supply and the input to the output inverter; connecting a path control transistor for controlling a path between the first voltage supply and the input inverter; and connecting control transistors in series between the first voltage supply and ground, said control transistors defining a second input inverter receiving a common gate input of the input signal; and said control transistors providing a second inverted signal output applied to a gate input to said path control transistor.