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Interactive CAD apparatus for designing packaging of logic circuit design

  • US 6,117,183 A
  • Filed: 08/26/1997
  • Issued: 09/12/2000
  • Est. Priority Date: 01/08/1996
  • Status: Expired due to Term
First Claim
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1. An interactive CAD apparatus for logic circuit packaging design, comprising:

  • component moving means, responsive to an operator'"'"'s instruction, for moving a component on a display screen where a component placement diagram is displayed;

    associated path extraction means for extracting a signal path associated with the component being moved by said component moving means;

    temporary position calculation means for calculating temporary position data representing a placement position corresponding to the position of said component on said display screen at prescribed intervals of time when said component is being moved by said component moving means;

    associated path delay calculation means for successively calculating delay values for the signal path extracted by said associated path extraction means, based on the temporary position data calculated by said temporary position calculation means; and

    associated path delay display means for successively displaying on said display screen the delay values calculated by said associated path delay calculation means.

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