APPARATUS AND METHOD FOR INTEGRATED CIRCUIT DESIGN FOR CIRCUIT EDIT
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United States of America Patent
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app pub date -
Oct 9, 2007
filing date -
Feb 25, 2005
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Abstract
A method and apparatus for optimizing an integrated circuit design for post-fabrication circuit editing and diagnostics. The method and apparatus is specifically directed to adding designed-for-edit modifications and designed-for-diagnostics structures to an integrated circuit design for post-fabrication circuit editing with a charged-particle beam tool. An integrated circuit design may be modified to create efficient and reliable access to specified nodes and structures, such as spare gates, by the charged-particle beam tool during subsequent testing and debugging of the fabricated device. Additionally, structures such as spare gates, spare transistors, spare metal wires, and debug circuitry may be added to an integrated circuit design to provide for easier editing of portions of the design that may fail.
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