Method and end cell library for avoiding substrate noise in an integrated circuit

摘要

A method of avoiding substrate noise in an integrated circuit includes steps of receiving as input from an integrated circuit design at least a portion of a block for placement and routing on a substrate and an outer boundary of the block, selecting an end cell from a set of end cells for terminating the block in an outer area that extends from the outer boundary to an end cell boundary outside the block, and placing the selected end cell in the outer area to isolate the block electrically from the substrate.