Patent ID: 7631279
Filing Date: 2009-12-08
Classification: G06F,H01L

Abstract:
1. A method for designing a semiconductor integrated device comprising the steps of: modifying connection information by using a computer so as to short circuit a first element having a connection terminal coupled to first power supply wiring; modifying the connection information so as to short circuit a second element having a connection terminal coupled to second power supply wiring; providing different names respectively to different power pads in the first power supply wiring and the second power supply wiring; determining a node where terminals provided with the different names are short circuited; specifying the node as an element to which signals are inputted from the first power supply wiring and the second power supply wiring; specifying an input/output circuit unit for exchanging the signals between the first power supply wiring and the second power supply wiring; and performing predetermined element modification concerning the specified node and the input/output circuit unit according to a predetermined placement rule that allows an electrostatic discharge surge current path to bypass the specified node and the input/output circuit unit.