Modeling of simultaneous switching noise in high speed systems

Simultaneous switching noise (SSN) has become a major bottleneck in high sp eed digital design. For future systems, modeling SSN can be complex due to the thousands of interconnects that need to be analyzed. This is because a system level modeling approach is necessary that combines the chip, package and board level interactions, This paper presents an efficient method to m odel the SSN for high speed systems by developing circuit models for the pl anes and interconnections that can be combined using superposition theory. This approximation is valid at frequencies where skin effect is dominant. S imulation results are compared with the measurements on a test vehicle, ver ifying the validity of the method. In addition a system has been simulated to compute SSN, showing the application of this method br complex systems.