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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Is a

Patent

Patent attributes

Current Assignee

Micron Technology

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7466618

Patent Inventor Names

Stephen R. Porter0

Scott J. Derner0

Date of Patent

December 16, 2008

Patent Application Number

10930517

Date Filed

August 31, 2004

Patent Primary Examiner

‌

Pho M Luu

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.