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Guideline for grid density of imported layout file in Icepak |
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June 23, 2015, 05:58 |
Guideline for grid density of imported layout file in Icepak
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#1 |
New Member
Ivan Chi
Join Date: May 2015
Posts: 2
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Hi
The layout file can be imported into a block in Icepak, like substrate or PCB. But I found the Grid Density of the layout file plays an important role in the results, I have tried grid 100x100 200x200 ....... 2000x2000. There are so much larger difference between these cases. I think the grid density is base on how large of the package or PCB. Does someone have the Guideline for grid density of imported layout file? thanks! |
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October 13, 2015, 09:24 |
Grid Density
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#2 |
Member
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Hi,
As you mentioned, Grid density plays an important role in predicting the results in case we've imported traces of a PCB (into a block representing PCB). The finer the PCB, the more time solver takes to calculate the metal fractions. I guess the default values set in Icepak would be 200X200. depending on size of your grid and traces, we'll have to alter the values. As far as i've experienced, I was using 750x750 as grid density and didn't find much difference on still finer numbers. Any ways, just the way we do mesh optimization study (Grid independent study), performing a couple of iterations to freeze the grid density would be a safe practice.. Cheers, Pramodh J |
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grid, icepak, layout, mesh |
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