Patent ID: 6195307
Filing Date: 2001-02-27
Classification: G11C

Abstract:
A semiconductor device comprising:a booster circuit having an input terminal, an output terminal, an n-number of transistors composed of a first, a second, . . . , an n-th (where n is a positive integer) transistors diode-connected, and an n-number of capacitors composed of a first, a second, . . . , a n-th capacitors, said n-number of transistors being serially connected between said input terminal and said output terminal, said first transistor being connected to said input terminal and said n-th transistor being connected to said output terminal, each of said n-number of capacitors having a first and a second electrodes, said first electrodes of said n-number of capacitors being respectively connected to gate electrodes of said n-number of transistors, the second electrodes of odd-numbered capacitors among said n-number of capacitors being supplied with a control signal, the second electrodes of even-numbered capacitors among said n-number of capacitors being supplied with a complementary signal of said control signal;a terminal to which a power supply voltage is supplied;a charge transfer transistor having a current path and a gate terminal, an end of said current path being connected to said input terminal of said booster circuit, another end of said current path being connected to said terminal, said gate terminal being supplied with said complementary signal of said control signal;a differential amplifier circuit having a first and a second input terminals and an output terminal, said first input terminal being supplied with a voltage according to a potential of said output terminal of said booster circuit, said second input terminal being supplied with a reference voltage, said output terminal of said differential amplifier circuit outputting an output signal; anda circuit which is connected to said output terminal of said differential amplifier circuit and produces the control signal and the complimentary signal thereof to be supplied to said booster circuit and said charge transfer transistor.