Static information storage and retrieval – Read only systems – Fusible
Reexamination Certificate
2006-08-28
2008-12-09
Le, Vu A (Department: 2824)
Static information storage and retrieval
Read only systems
Fusible
C365S225700
Reexamination Certificate
active
07463503
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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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Le Vu A
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