Reduction of cross-talk noise in VLSI circuits

A system for reducing cross-talk noise in a circuit, comprising:

• a noise analyzer configured to identify a victim net in an integrated circuit;
• an analysis engine configured to determine a value for a change in ground capacitance for a victim net, the change in ground capacitance providing a noise amplitude for the victim net less than or equal to a maximum allowed noise height;
• and
• a library configured to provide at least one cell having an input capacitance for coupling with the victim net, a total input capacitance for the victim net having a value substantially close to the change in ground capacitance.

A system for reducing cross-talk noise in a very large scale integration (“VLSI”) circuit, the system comprising:

• a means for performing a noise analysis on a plurality of nets in the VLSI circuit;
• a means for identifying at least one victim net among the plurality of nets, the victim net having a noise amplitude greater than a maximum allowable noise height;
• a means for selecting a victim net from the at least one victim net;
• a means for determining a change in a ground capacitance for the victim net such that the noise amplitude of the victim net is less than the maximum allowable noise height;
• a means for selecting from a cell library a cell providing an input capacitance value substantially close to the value of the change in the ground capacitance;
• and
• a means for coupling the cell with the victim net.

A process for reducing cross-talk noise in a very large scale integration (“VLSI”) circuit, the process comprising:

• performing a noise analysis on a plurality of nets in the VLSI circuit;
• identifying at least one victim net among the plurality of nets, the victim net having a noise amplitude greater than a maximum allowable noise height;
• selecting a victim net from the at least one victim net;
• determining a change in a ground capacitance for the victim net such that the noise amplitude of the victim net is less than the maximum allowable noise height;
• selecting from a cell library a cell providing an input capacitance value substantially close to the value of the change in the ground capacitance;
• and
• coupling the cell with the victim net.