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https://designers-guide.org/forum/YaBB.pl Design >> RF Design >> Postlayout in tsmc 0.18um PDK https://designers-guide.org/forum/YaBB.pl?num=1091579202 Message started by CDR on Aug 3rd, 2004, 5:26pm |
Title: Postlayout in tsmc 0.18um PDK Post by CDR on Aug 3rd, 2004, 5:26pm Anybody works on RF IC design using tsmc 0.18um PDK? I am now using tsmc 0.18um CMOS PDK under cadence envioronment. When I do the postlayout simulation of my double edge DFF at 5GHz clock,10Gbps input data,possibly because the extracted parasitic caps is very small,all around 10fF,below 20fF.There is warning of " I155._inst96: Vgd has exceeded the oxide breakdown voltage of Vbox=4.08 V" I155._inst99: Vgs has exceeded the oxide breakdown voltage of Vbox=4.08 V" The simulation is very slow and finally can't converge, I guess the simulation result will be wrong. But the schematic simulation is correct and converge. Anybody could give me some hints? Thanks a lot. |
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