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
Churn prediction and management system
Method of fabricating crystal unit, crystal unit fabrication mask, and crystal unit package
Control of protein activity using a conducting polymer
Wireless monitoring in process applications
Noise suppression in speech signals
Routing of data including multimedia between electronic devices
Polymer composites having highly dispersed carbon nanotubes
  Randomly Featured Patents
Carrier and method of use
Multi-column multi-data type internationalized sort extension method for web applications
Block copolymers
DOCSIS network interface device and methods and systems for using the same
Opthalmic lens having a positive refractive power
Gardening shears
Digital electronic control and switching arrangement
Optimized scalar promotion with load and splat SIMD instructions
Semiconductor memory device having multiple selector unit simultaneously selecting memory cells from memory cell blocks in diagnostic mode of operation
Construction for mounting electronic component on flexible substrate