omtzigt-theo@CS.Yale.EDU (Theo Omtzigt) (08/28/89)
Having to design (academically) systems comprised of chips, PCBs and cabinets, I am interested in the physics of these technologies. Does anybody know the answers on the following questions: 1- What is a typical load a chip buffer has to drive assuming the signal stays on the PCB? 2- What is a typical load a buffer has to drive if the signal goes off the PCB, onto a multilevel backplane? 3- What is a typical wire width of PCBs and backplanes? 4- What is the typical capacitance/resistance/inductance of a line of current PCB technology? 5- What is the typical capacitance/resistance/inductance of a line of current backplane technology? 6- What is the material they use on PCBs and backplanes, copper, aluminum, or some fancy composite? Thanks in advance, Theo Omtzigt omtzigt-theo@cs.yale.edu