Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 23, 2007
Patent Application Number
10907438
Date Filed
March 31, 2005
Patent Primary Examiner
Patent abstract
The present invention abandons the conventional approach of incrementing bits-per-cell b by 1, but allows increments of states-per-cell N by as little as 1 between product generations. Because N is no longer an integral power of 2, b takes a fractional value, resulting in a fractional-bit system. In a fractional-bit system, cells are decoded in unit of word. By adjusting the word-width, the system efficiency can be optimized. Hybrid N-ary system can be used to improve manufacturing yield and endurance lifetime.
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