Method for performing write and read operations in a passive matrix memory, and apparatus for performing the method

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United States of America Patent

PATENT NO 6606261
APP PUB NO 20020027794A1
SERIAL NO

09899094

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Abstract

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A method and apparatus for performing read and write operations in matrix-addressed memory array of memory cells is described. The memory cells comprising an electrically polarizable material exhibiting polarization remanence, in particular and electret or ferroelectric material, where a logical value stored in a memory cell is represented by an actual polarization state in the memory cell. The degree of polarization in the polarizable material is limited during each read and write cycle to a value defined by a circuit device controlling the read and write operations, with said value ranging from zero to an upper limit corresponding to saturation of the polarization and consistent with predetermined criterta for a reliable detection of a logic state of a memory cell.

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Patent Owner(s)

Patent OwnerAddress
THIN FILM ELECTRONICS ASAOSLO CITY OF NORWAY OSLO OSLO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Broms, Per Linkoping, SE 7 66
Gudesen, Hans Gude Brussels, BE 66 1918
Johansson, Mats Linkoping, SE 100 999
Nordal, Per-Erik Asker, NO 48 1709

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