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Automatic integrated circuit routing using spines

  • US 8,099,700 B1
  • Filed: 08/14/2007
  • Issued: 01/17/2012
  • Est. Priority Date: 06/07/2004
  • Status: Active Grant
First Claim
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1. A method for routing at least one interconnect of an integrated circuit comprising:

  • identifying at least two pins to couple;

    by using a computer, calculating a route area having a boundary so that the at least two pins touch the boundary, wherein the route area has a rectangular shape and is bounded by a first, second, third, and fourth side, the third side is opposite of the first side, the fourth side is opposite of the second side, the first side is longer than the second side, the first and third sides extend in a first direction, the second and fourth sides extend in a second direction, and the second direction is orthogonal to the first direction;

    routing a spine interconnect extending in the first direction at least a length from a first pin to a second pin in the first direction; and

    routing a plurality of stitching interconnects in the second direction to couple the first pin and second pin to the spine interconnect.

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