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US 2003/0189843 A1Published application
Refresh scheme for dynamic page programming
AssigneeAdvanced Micro Devices, Inc.
InventorsBinh Quang Le, Michael Chung, Pau-Ling Chen
Life of this patent
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AssigneeAdvanced Micro Devices, Inc.
InventorsBinh Quang Le, Michael Chung, Pau-Ling Chen
Estimating the term…
A flash memory array having multiple dual bit memory cells divided into section attached to a wordline and a pair of reference cells logically associated with each section. A method of reprogramming a section or sections of words that are required to be changed includes inputting allowed changes to the flash memory array, reading word or words to be changed in each section, programming bits in word or words to be changed in each section, refreshing previously programmed bits in the word or words that are changed, refreshing previously programmed bits in the word or words changed in each section, refreshing previously programmed bits in the remaining word or words in each section and refreshing previously programmed in each pair of reference cells in the section in which changes have been made.
A flash memory array, comprising:
A method of reprogramming and refreshing dual bit flash memory cells in a dual bit flash memory array wherein multiple dual bit flash memory cells are attached to a common wordline and divided into sections wherein a pair of reference cells are logically associated with each section of dual bit flash memory cells, the method comprising:
Dependencies are inferred from the claim text.