Inter-signal proximity verification in an integrated circuit

A computer-implemented system comprising:

• first identification means for identifying a first signal net in a first layer of an integrated circuit design;
• second identification means for identifying a second signal net in a second layer of the integrated circuit design;
• first determination means for determining whether at least one portion of the second signal net is within a threshold distance of the first signal net;
• measurement means for measuring the aggregate length along the first signal net that is within the threshold distance of the second signal net if it is determined that at least one portion of the second signal net is within the threshold distance of the first signal net;
• second determination means for determining whether the measured length is at least as great as a threshold length;
• and
• notification means for notifying a user that the second signal net is a neighbor of the first signal net if it is determined that the measured length is at least as great as the threshold length.

A computer-readable medium tangibly embodying computer program instructions for performing steps of:

• (A) identifying a first signal net in a first layer of an integrated circuit design;
• (B) identifying a second signal net in a second layer of the integrated circuit design;
• (C) determining whether at least one portion of the second signal net is within a threshold distance of the first signal net;
• (D) if it is determined that at least one portion of the second signal net is within, the threshold distance of the first signal net, measuring the aggregate length along the first signal net that is within the threshold distance of the second signal net;
• (E) determining whether the measured length is at least as great as a threshold length;
• and
• (F) notifying a user that the second signal net is a neighbor of the first signal net if it is determined that the measured length is at least as great as the threshold length.

A computer-implemented method comprising steps of:

• (A) identifying a first signal net in an integrated circuit design;
• (B) identifying a plurality of second signal nets in the integrated circuit design;
• (C) identifying a subset of the plurality of second signal nets that are closest to the first signal net by performing steps of:
• (C) (1) sorting the plurality of second signal nets according to distances between the first signal net and the plurality of second signal nets to produce a sorted signal net list;
• (C)(2) identifying a number NC;
• and
• (C)(3) identifying the first NC signal nets in the sorted signal net list as the subset of the plurality of second signal nets;
• and
• (D) notifying a user of the subset of the plurality of second signal nets.

A computer-implemented system comprising:

• first identification means for identifying a first signal net in an integrated circuit design;
• second identification means for identifying a plurality of second signal nets in the integrated circuit design;
• subset identification means for identifying a subset of the plurality of second signal nets that are closest to the first signal net, the subset identification means comprising:
• means for sorting the plurality of second signal nets according to distances between the first signal net and the plurality of second signal nets to produce a sorted signal net list;
• means for identifying a number NC;
• and
• means for identifying the first NC signal nets in the sorted signal net list as the subset of the plurality of second signal nets;
• and
• notification means for notifying a user of the subset of the plurality of second signal nets.

A computer-readable medium tangibly storing computer program instructions for performing steps of:

• (A) identifying a first signal net in an integrated circuit design;
• (B) identifying a plurality of second signal nets in the integrated circuit design;
• (C) identifying a subset of the plurality of second signal nets that are closest to the first signal net by performing steps of:
• (C)(1) sorting the plurality of second signal nets according to distances between the first signal net and the plurality of second signal nets to produce a sorted signal net list;
• (C) (2) identifying a number NC;
• and
• (C) (3) identifying the first NC signal nets in the sorted signal net list as the subset of the plurality of second signal nets;
• and
• (D) notifying a user of the subset of the plurality of second signal nets.

A computer-implemented method comprising steps of:

• (A) identifying a first signal net, in an integrated circuit design, being edited by a user using an integrated circuit design tool;
• (B) identifying a second signal net in the integrated circuit design;
• (C) determining whether at least one portion of the second signal net is within a threshold distance of the first signal net;
• (D) if it is determined that at least one portion of the second signal net is within the threshold distance of the first signal net, measuring the aggregate length along the first signal net that is within the threshold distance of the second signal net;
• (E) determining whether the measured length is at least as great as a threshold length;
• and
• (F) notifying the user, while the user is editing the first signal net, that the second signal net is within the threshold distance of the first signal net if it is determined that the measured length is at least as great as the threshold length, by providing to the user a visual indication of coordinates on the first signal net which are within the threshold distance of the second signal net.

A computer-implemented system comprising:

• first identification means for identifying a first signal net, in an integrated circuit design, being edited by a user using an integrated circuit design tool;
• second identification means for identifying a second signal net in the integrated circuit design;
• first determination means for determining whether at least one portion of the second signal net is within a threshold distance of the first signal net;
• measurement means for measuring the aggregate length along the first signal net that is within the threshold distance of the second signal net if it is determined that at least one portion of the second signal net is within the threshold distance of the first signal net;
• second determination means for determining whether the measured length is at least as great as a threshold length;
• and
• notification means for notifying the user, while the user is editing the first signal net, that the second signal net is within the threshold distance of the first signal net if it is determined that the measured length is at least as great as the threshold length, by providing to the user a visual indication of coordinates on the first signal net which are within the threshold distance of the second signal net.

A computer-readable medium tangibly embodying computer program instructions for performing steps of:

• (A) identifying a first signal net, in an integrated circuit design, being edited by a user using an integrated circuit design tool;
• (B) identifying a second signal net in the integrated circuit design;
• (C) determining whether at least one portion of the second signal net is within a threshold distance of the first signal net;
• (D) if it is determined that at least one portion of the second signal net is within the threshold distance of the first signal net, measuring the aggregate length along the first signal net that is within the threshold distance of the second signal net;
• (E) determining whether the measured length is at least as great as a threshold length;
• and
• (F) notifying the user, while the user is editing the first signal net, that the second signal net is within the threshold distance of the first signal net if it is determined that the measured length is at least as great as the threshold length, by providing to the user a visual indication of coordinates on the first signal net which are within the threshold distance of the second signal net.

A computer-implemented method comprising steps of:

• (A) identifying a first signal net, in an integrated circuit design, being edited by a user using an integrated circuit design tool;
• (B) identifying a plurality of second signal nets in the integrated circuit design;
• (C) identifying a subset of the plurality of second signal nets that are closest to the first signal net;
• and
• (D) notifying the user of the subset of the plurality of second signal nets while the user is editing the first signal net, by providing to the user a visual indication of coordinates on the first signal net which are closest to the subset of the plurality of second signal nets.

A computer-implemented method comprising steps of:

• (A) identifying a first signal net in a first layer of an integrated circuit design;
• (B) identifying a plurality of second signal nets in the integrated circuit design;
• (C) identifying a subset of the plurality of second signal nets that are closest to the first signal net, the subset of the plurality of second signal nets including at least one signal net in a second layer of the integrated circuit design;
• and
• (D) notifying a user of the subset of the plurality of second signal nets.

A computer-implemented system comprising:

• first identification means for identifying a first signal net, in an integrated circuit design, being edited by a user using an integrated circuit design tool;
• second identification means for identifying a plurality of second signal nets in the integrated circuit design;
• subset identification means for identifying a subset of the plurality of second signal nets that are closest to the first signal net;
• and
• notification means for notifying a user of the subset of the plurality of second signal nets while the user is editing the first signal net, by providing to the user a visual indication of coordinates on the first signal net which are closest to the subset of the plurality of second signal nets.

A computer-implemented system comprising:

• first identification means for identifying a first signal net in a first layer of an integrated circuit design;
• second identification means for identifying a plurality of second signal nets in the integrated circuit design;
• subset identification means for identifying a subset of the plurality of second signal nets that are closest to the first signal net, the subset of the plurality of second signal nets including at least one signal net in a second layer of the integrated circuit design;
• and
• notification means for notifying a user of the subset of the plurality of second signal nets.

A computer-readable medium tangibly storing computer program instructions for performing steps of:

• (A) identifying a first signal net, in an integrated circuit design, being edited by a user using an integrated circuit design tool;
• (B) identifying a plurality of second signal nets in the integrated circuit design;
• (C) identifying a subset of the plurality of second signal nets that are closest to the first signal net;
• and
• (D) notifying the user of the subset of the plurality of second signal nets while the user is editing the first signal net, by providing to the user a visual indication of coordinates on the first signal net which are closest to the subset of the plurality of second signal nets.

A computer-readable medium tangibly storing computer program instructions for performing steps of:

• (A) identifying a first signal net in a first layer of an integrated circuit design;
• (B) identifying a plurality of second signal nets in the integrated circuit design;
• (C) identifying a subset of the plurality of second signal nets that are closest to the first signal net, the subset of the plurality of second signal nets including at least one signal, net in a second layer of the integrated circuit design;
• and
• (D) notifying a user of the subset of the plurality of second signal nets.