System and method for detecting storage nodes that are susceptible to charge sharing

A method for identifying a storage node of an integrated circuit that is susceptible to charge sharing by another node, comprising the steps of:

• identifying the node as a storage node;
• evaluating all devices connected to storage node and identifying at least one pass FET device that is channel-connected to the storage node;
• determining that the at least one pass FET device is being driven by the storage node;
• obtaining a first capacitance value for the storage node;
• obtaining a second capacitance value for a channel node on the pass FET device opposite the storage node;
• calculating a ratio between the first capacitance value and the second capacitance value;
• and
• generating a warning message if the ratio exceeds a predetermined number.

A system for identifying a storage node that is susceptible to charge sharing by another node comprising:

• means for identifying a storage node from a netlist;
• means for identifying all pass FET devices that are being driven by the storage node;
• means for obtaining a first capacitance value for the storage node;
• means for obtaining a second capacitance value for each pass FET device that is being driven by the storage node, the second capacitance being the capacitance value of a channel node of each pass FET device opposite the storage node;
• means for calculating a ratio between the first and second capacitance values for each pass FET device being driven by the storage node;
• and
• means for generating a warning message if the ratio is greater than a predetermined number.