Semiconductor device
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United States of America Patent
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Dec 9, 2008
Grant Date -
Mar 15, 2007
app pub date -
Aug 28, 2006
filing date -
Sep 14, 2005
priority date (Note) -
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Abstract
A semiconductor device has: a memory element which is arranged on a semiconductor substrate and records information therein; a terminal for inputting first voltage for recording the information to the memory element and second voltage lower than the first voltage for reading out the information from the memory element; and an electrostatic discharge protection circuit which is connected to the terminal. The electrostatic discharge protection circuit includes a diode whose cathode is connected to the first terminal and whose anode is connected to a ground potential, and a first MOS transistor whose drain and gate are connected to the terminal and whose source and back gate are connected to the ground potential.
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