US Patent 7466618 Current limiting antifuse programming path

Patent 7466618 was granted and assigned to Micron Technology on December, 2008 by the United States Patent and Trademark Office.

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Patent Inventor Names

Scott J. Derner0

Stephen R. Porter0

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Patent abstract

Method and apparatus are provided for regulating an antifuse programming current by lightly doping an electrically connected region so that the resistance of the region responds in a non-linear manner to changes in voltage. In this way a variable resistor or a variably resistive transistor may be created which vary their resistance in response to an applied voltage and which may thereby limit a programming current while not limiting a lesser, reading current to a serially connected antifuse.

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