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Case Studies
In this case, a layout designer used PIStream for his PCB design of network device and saw following advantages.
By uging PIStream, the customer could not only consider apropreate capacitor location and value, but also plane sharp and distance between power and ground plane at design stage.
They could reduce itteretion procese caused by PI issue and proceeded to mass production 3 weeks earlier than usual.
Moreover, they could reduce the number of capacitors by knowing optimal location and save 40% of production cost. Also they reduced 4 layers from original PCB design by considering distance between power and ground plane.
Finally, they could save millions of dollers on this project.
Comparison between simulation and measurement
This is a comparison between actual measurement and calculation by PIStream. Bold line is actual measurement value, and thin line is simulation result. The result of PIStream correlates with actual measurement result.
There is a difference around self-resonance frequency. Actual measurement minimum value is -20dB ohm but PIStream is -35dB ohm. However this difference is less than 0.1 ohm which is acceptable discrepancy.
* PIStream uses PEEC method.
