Fishing – trapping – and vermin destroying
Patent
1989-12-04
1991-07-16
Hearn, Brian E.
Fishing, trapping, and vermin destroying
437 51, 437 52, 437193, 437195, 437228, 437233, 437235, H01L 2170
Patent
active
050325337
ABSTRACT:
An array of nonvolatile memory cells are formed at a face of a semiconductor body, the cells including source regions and including drain regions that are part of a common drain column conductor. Each cell has first and second sub-channel regions between source and drain. The conductivity of the first sub-channel regions of each cell is controlled by a field-plate conductor formed over and insulated from the first sub-channel region. The conductivity of each of the second sub-channel regions is controlled by a floating-gate conductor formed over and insulated from the second sub-channel region. A row line, including control gates, is located above and insulated from the floating gates of the cells for reading, programming and erasing the cells. The field-plate conductor switch provided isolation of the cells during programming.
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patent: 4612629 (1986-09-01), Harari
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patent: 4853895 (1989-08-01), Mitchell et al.
patent: 4947222 (1980-08-01), Gill et al.
D'Arrigo Sebastiano
Gill Manzur
Brady W. James
Comfort James T.
Hearn Brian E.
Sharp Melvin
Texas Instruments Incorporated
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