Patent ID: 8143937

Claim:
An internal negative voltage generation device, comprising: a first internal negative voltage generation block configured to generate a first internal negative voltage at a first internal negative voltage terminal, the first internal negative voltage being lower than a ground voltage; a second internal negative voltage generation block configured to generate a second internal negative voltage according to the first internal negative voltage, the second internal negative voltage being higher than the first internal negative voltage and lower than the ground voltage; and an initial driving block configured to additionally drive a second internal negative voltage terminal to the first internal negative voltage during an initial set time interval of an active operation time interval, wherein the initial driving block comprises: a driving unit configured to drive the second internal negative voltage terminal to the first internal negative voltage in response to an operation control pulse signal; and an operation control unit configured to set a time interval of operation of the driving unit in response to a word line enable signal and to output the operation control pulse signal corresponding to the time interval, wherein the operation control unit comprises: an operation time interval setting section configured to set the time interval of the operation of the driving unit and to output a pulse signal corresponding to the time interval; and a signal level conversion section configured to convert the pulse signal from the operation time interval setting section into a signal level for the driving unit and to output the operation control pulse signal.