AT499682T

Compensation currents in non-volatile memory read operations

Abstract

Adjacent the apparent charge stored on a floating gate of the memory cell because of coupling of an electric field caused by charges stored in the floating gate can be shifted. The shift in apparent charge can cause of a false reading by reducing the conduction current of the memory cell is detected as a result increases the apparent threshold voltage. A read process for a selected memory cell takes into account the status of one or more adjacent memory cells. If the adjacent memory cell is in one or more lines in the determined set of program state and may be to increase the apparent conduction current of the selected memory cell compensation current is provided. The bit line of the programmed adjacent memory cell initialization voltage is provided to derive the compensation current between the bit line of the bit lines and the selected memory cell in the programmed adjacent cells.

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Expired 15 June 2026, 0.3 years ago.

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15703305United States of AmericaA
2006023541United States of AmericaW

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US2006285391A1United States of AmericaA1
WO2007001911A1World Intellectual Property Organization (WIPO)A1
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TW200717526ATaiwan Province of ChinaA
US2007133297A1United States of AmericaA1
US2007133298A1United States of AmericaA1
EP1894205A1European Patent Office (EPO)A1
KR20080032103ARepublic of KoreaA
US7379343B2United States of AmericaB2
US2008198656A1United States of AmericaA1
CN101263560AChinaA
JP2008547149AJapanA
TWI309830BTaiwan Province of ChinaB
US7535769B2United States of AmericaB2
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CN101263560BChinaB
KR100989447B1Republic of KoreaB1
EP1894205B1European Patent Office (EPO)B1
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DE602006020272D1GermanyD1
JP4892552B2JapanB2