Split gate memory cell with a floating gate in the corner of a trench

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United States of America Patent

PATENT NO 6521944
SERIAL NO

09925662

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Abstract

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A memory cell and method for making a memory cell. The memory cell has a floating gate and a control gate, and a source region and a drain region. The structure of the device is such that the area of capacitive coupling between the floating gate and the source region is oriented along a sidewall of a trench formed in a substrate. The drain region is disposed under the bottom of the trench.

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Patent Owner(s)

  • NATIONAL SEMICONDUCTOR CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mirgorodski, Yuri San Jose, CA 56 587

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