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The DDR4 in question is a Micron MT40A512M16JY. From the vendor site, you can get the datasheets, specs, sim models. I assume from the sim models you should be able to see the trace length of each signal pin inside the package. But I can't figure out how to interpret the files. Anybody knows how to read those sim models manually? If it is not in the sim models, where to find out those lengths?

I know that I do not have the skill to run the sim model with HiSpice tool. The purpose of this question is to compute trace length alignment in layout. So I just need a way to know the length of each signal.

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You will be able to access this data with Visual IBIS Editor. With this software you will be able to get the information you need, it is able to open the .ibs files.

Download Visual IBIS Editor

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  • \$\begingroup\$ Hi, Eduardo, I installed the IBIS editor and opened the ibis files. It seems the trace length could not be found. Do you see it? \$\endgroup\$ – minghua Mar 23 '18 at 20:42
  • \$\begingroup\$ I still have not figured out how to get the trace lengths from the model or another source. \$\endgroup\$ – minghua Apr 5 '18 at 10:34

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