Resources Contact Us Home
Semiconductor integrated circuit device

Image Number 9 for United States Patent #7453742.

A semiconductor integrated circuit device includes a charge transfer transistor provided between a bit line and a sense amplifier, and a bit line clamp voltage generating circuit which generates bit line clamp voltage to be applied to the gate of the charge transfer transistor. The bit line clamp voltage generating circuit includes a current mirror circuit, a resistive dividing circuit provided between the input stage of the current mirror circuit and a reference potential node, a potential setting circuit provided between the output node of the resistive dividing circuit and the output stage of the current mirror circuit, and an operational amplifier which compares potential of the input stage of the current mirror circuit with reference potential to control the current mirror circuit. The operational amplifier is configured by transistors other than intrinsic transistors. The bit line clamp voltage is derived from the output stage of the current mirror circuit.

  Recently Added Patents
Encoding digital content based on models for predicting similarity between exemplars
Grid computing accounting and statistics management system
Wireless subscriber managing storage of HARQ packets
Semiconductor memory system having ECC circuit and controlling method thereof
Bicycle shifting method
Method and system for monitoring and treating hemodynamic parameters
Method for identifying modulators of GPCR GPR1 function
  Randomly Featured Patents
Regeneration of ion exchange resin and recovery of regenerant solution
Anti-lock braking system
Scroll compressor discharge muffler
Microwave oven
Output control signal generating circuit
Magnetic captive key switch lock
.omega.-Aryl-12,13(e)-didehydro-13,14-dihydro-PGD compounds
Layout structure of the fuel pump of a motorcycle
Long pulse production from short pulses
Electronic camera with print specifying information