Patent ID: 6064594
Filing Date: 2000-05-16
Classification: G11C

Abstract:
A voltage boosting circuit for use in an integrated circuit of the type having at least four driving voltage phases, the voltage phases including a first voltage phase with an amplitude substantially equal to a supply voltage, a second voltage phase with an amplitude substantially equal to the supply voltage and substantially in phase opposition to the first voltage phase, a first boosted voltage phase, and a second boosted voltage phase substantially in phase opposition to the first boosted voltage phase, said voltage boosting circuit comprising:an input receiving the first or second voltage phase;an output supplying the first or second boosted voltage phase;a charge node coupled to the input;a supply voltage precharge circuit for precharging the charge node; andan additional transistor connected between the supply voltage and the charge node,wherein the additional transistor is driven by a voltage with a greater amplitude than the supply voltage so that the charge node is precharged up to the supply voltage and the first or second boosted voltage phase that is output by the voltage boosting circuit reaches an amplitude equal to substantially twice the supply voltage.