An article on DACeZine talks about the problems that Power Intergrity is causing in PCB designs.
The Mainstreaming of Analysis article mentions that designers assume that signal and power integrity are only of concern in high-performance designs, but the Mentor Grapics author says that isn't true, particularly for PI.
The author then shows examples that are not at the most-aggressive end of the spectrum. He claims that power-integrity analysis now sits where signal integrity analysis did about 15 years ago: needed and talked about a lot, but skillfully practiced by only a relatively few experts.
Real progress toward the needed widespread ability of EEs to run PI simulations awaits the arrival of a new generation of tools that has a deliberate goal of making PI analysis available to everyone.
The author then mentions Mentor's HyperLynx SI/PI as an example of tools that lead the way toward a more user friendly and accurate PI simulation.
Kenji Yasuda (Kenji.Yasuda@jp.sony.com) of Sony Corporation commented on the article this way:
"Power Integrity is important at the point of LSI-Package-PWB design too. But Mentor Co-Design(LSI/PKG/PWB) methodology is only for Mentor EDA Tool User. We are very disappointed."
You just can't please all the people all the time.
You can read the entire article here and then click to other interesting issues that will be discussed at the upcoming DAC.