Semiconductor integrated circuit device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 16, 2000
Issued Date -
N/A
app pub date -
Dec 31, 1997
filing date -
Jul 12, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A nonvolatile storage element of single-layer gate structure constructed by arranging a floating gate formed of a conductive layer to partly overlap with a control gate formed of a diffused layer is provided with a barrier layer covering a part or the whole of the surface of the floating gate. Such nonvolatile storage elements are used for redundancy control of defects or change of functions.
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