Resources Contact Us Home
Preservation circuit and methods to maintain values representing data in one or more layers of memory

Image Number 3 for United States Patent #8120945.

Circuitry and methods for restoring data in memory are disclosed. The memory may include at least one layer of a non-volatile two-terminal cross-point array that includes a plurality of two-terminal memory elements that store data as a plurality of conductivity profiles and retain stored data in the absence of power. Over a period of time, logic values indicative of the stored data may drift such that if the logic values are not restored, the stored data may become corrupted. At least a portion of each memory may have data rewritten or restored by circuitry electrically coupled with the memory. Other circuitry may be used to determine a schedule for performing restore operations to the memory and the restore operations may be triggered by an internal or an external signal or event. The circuitry may be positioned in a logic layer and the memory may be fabricated over the logic layer.

  Recently Added Patents
Method for drug screening and characterization by calcium flux
Subcarrier cluster-based power control in wireless communications
Post-processing including median filtering of noise suppression gains
Semiconductor pressure sensor
Post-processing device and image forming system
Image processing device, printing apparatus, image processing method, and method of producing printing apparatus
Method for manufacturing and reoxidizing a TiN/Ta.sub.2O.sub.5/TiN capacitor
  Randomly Featured Patents
Offset weight supporting slide
Process for cutting a material by means of a laser beam
Integrated circuit packaging system with multiple row leads and method of manufacture thereof
Motor drive apparatus and its inspection method
Auxiliary power device for refrigerated trucks
Gravity assisted access plug
P.F. 12A peach tree
Wireless receiver
Semiconductor integrated circuit having signal paths with equal propagation delays
Tools and methods for disuniting semiconductor wafers