Verifying proximity of ground vias to signal vias in an integrated circuit
First Claim
1. A computer-implemented method comprising steps of:
- (A) identifying a signal via in an integrated, circuit design; and
(B) determining whether there is at least one signal return path in the integrated circuit design within a predetermined threshold distance from the signal via.
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Accused Products
Abstract
Techniques are disclosed for verifying the proximity of ground vias to signal vias in an integrated circuit package design. A package designer creates the package design using a package design tool. A proximity verifier verifies that there is a ground via within a predetermined threshold distance of each specified signal via in the package design. The proximity verifier may notify the package designer of any signal vias which are not sufficiently close to ground vias, such as by providing visual indications of such signal vias in a graphical representation of the package design displayed on a display monitor. In response, the package designer may modify the package model to ensure that all signal vias are sufficiently close to ground vias. The proximity verifier may be implemented as a design rule which may be executed automatically and in real-time by the package design tool.
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Citations
30 Claims
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1. A computer-implemented method comprising steps of:
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(A) identifying a signal via in an integrated, circuit design; and
(B) determining whether there is at least one signal return path in the integrated circuit design within a predetermined threshold distance from the signal via. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system comprising:
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a computer-readable medium tangibly embodying an integrated circuit design; and
signal via identification means for identifying a signal via in the integrated circuit design; and
first proximity verification means for determining whether there is a signal return path in the integrated circuit design within a predetermined threshold distance from the signal via. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification