Patent ID: 7280422
Filing Date: 2007-10-09
Classification: G11C

Abstract:
1. An equalization signal driving circuit in a semiconductor memory device that includes a bit line precharge unit and a word line driver, comprising: a boosted voltage generator for producing a boosted voltage for an equalization signal by pumping an external supply voltage, wherein the boosted voltage generator includes a voltage pump for outputting the boosted voltage in response to an oscillation signal and wherein the voltage pump includes a voltage controlling unit for controlling the charging and discharging of a pumping capacitor of a pumping unit in response to the oscillation signal and the pumping unit for performing voltage pumping by receiving an output of the voltage controlling unit; and an equalization signal driver for generating the equalization signal by using said boosted voltage in response to an equalization command, and providing the equalization signal to the precharge unit, wherein said boosted voltage has a lower voltage level than a boosted voltage for the word line driver.