Multilayer and Backplane
Multilayer PCBs of up to 28L. Multilayer PCBs are available in a variety of materials, please see laminate options. The maximum size of a multilayer PCB is 582x499mm and the maximum thickness 4.5mm. Maximum aspect ratio (thickness/via diameter) is 15. See the capability page for more design parameters.
Typical applications include industrial electronics and telecommunication devices such as cellular phone base stations, telephone switches and modems.
Impedance control by Polar Si8000 calculator and TDR measurements.