Support apparatus, design support method, and computer-readable recording medium

A design support method executed by a computer, the design support method comprising:

• when a power line runs parallel between two signal lines in a circuit, partitioning a direction in which the two signal lines extend into a plurality of sections based on a position of the power line running parallel;
• calculating a crosstalk noise value when the power line does not run parallel, for each of the plurality of sections;
• calculating a coefficient that becomes larger with decrease in an area of the power line included in an area between the two signal lines based on a relative positional relationship between the two signal lines and the power line in the section, for each of the plurality of sections;
• correcting the crosstalk noise value corresponding to the section, using the coefficient corresponding to the section, for each of the plurality of sections;
• and
• calculating a total of the corrected crosstalk noise values corresponding respectively to the plurality of sections as a crosstalk noise value between the two signal lines.

A computer-readable recording medium having stored therein a design support program causing a computer to execute a process comprising:

• when a power line runs parallel between two signal lines in a circuit, partitioning a direction in which the two signal lines extend into a plurality of sections based on a position of the power line running parallel;
• calculating a crosstalk noise value when the power line does not run parallel, for each of the plurality of sections;
• calculating a coefficient that becomes larger with decrease in an area of the power line included in an area between the two signal lines based on a relative positional relationship between the two signal lines and the power line in the section, for each of the plurality of sections;
• correcting the crosstalk noise value corresponding to the section, using the coefficient corresponding to the section, for each of the plurality of sections;
• and
• calculating a total of the corrected crosstalk noise values corresponding respectively to the plurality of sections as a crosstalk noise value between the two signal lines.