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what is the difference between?

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badola

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what is the difference between coverage from dft max and from tetramax???????
 

Hi,

DFT MAX is not an ATPG tool. It is a tool to do scan insertion with compressor decompressor.

DFT MAX does not gives any coverage.

You can compare the coverage between a design with compressor and one with out compressor.

Here if you remove the faults in the compressor and decompressor you should get the same coverage. There may be a slight pattern inflation in compression mode to take account for the compression logic.

-cheers
vlsi_eda_guy
 

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