Resources Contact Us Home
Integrated circuit memory with dual P-sense amplifiers associated with each column line

Image Number 4 for United States Patent #5323350.

A DRAM or VRAM integrated circuit memory of the divided bit line design includes a bit line pair extending from a column decoder to a SAM. An N-sense amplifier divides the bit line pair into two pairs of bit halves. The N-sense amplifier is connected to each of the bit line halves through an isolation transistor. A P-sense amplifier is connected across each pair of the bit line halves. Since a P-sense amplifier is associated with each pair of bit line halves, the P-sense amplifier never has to pull through isolation transistors, and thus the isolation transistors can be high threshold transistors, eliminating the natural threshold mask step in fabrication. The two P-sense amplifiers separate the bit line voltages faster, thereby decreasing crossing current and saving power, and pull the bit lines to full high voltage levels.

  Recently Added Patents
Single well reservoir characterization apparatus and methods
Distributed multicast packet replication with centralized quality of service
Organic EL display device and method for manufacturing the same
Register files for a digital signal processor operating in an interleaved multi-threaded environment
Curable inks comprising surfactant-coated magnetic nanoparticles
Memory controller including a hardware compression and decompression engine for managing system memory and graphical operations
Hand mixer
  Randomly Featured Patents
Economic means of aspirating a fuel combustion engine with non-atmospheric gases to produce a subsequently useful byproduct
Electronics rack cover systems
Method and apparatus for damping control of an electric assist steering system with vehicle speed signal loss feature
Miniature vertically polarized multiple frequency band antenna and method of providing an antenna for a wireless device
Speech recognition device with reference transformation means
Tire pressure monitoring system with low frequency initiation approach
Bale sampler
Apparatus for jamming infrared attack unit using a modulated radio frequency carrier
Crystalline 4-(3-chloro-2-fluoroanilino)-7 methoxy-6-{[1-(N-methylcarbamoylmethyl)piperidin-4-yl]oxy}quinazoline difumarate form A
Control unit for mixed light illumination, especially for microscopy