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Soldermask Clearance Check

Question asked by charles.ietswaard1 on Sep 10, 2020
Latest reply on Sep 21, 2020 by charles.ietswaard1

Hi All,


i am running a Soldermask Clearance Check and i get unexpected results. 



According to this text it is checking between soldermask edges.



I have setup the parameters in this way.


I am only checking the soldermask to soldermask distance (objettype=2)



When running the check I get an enormous number of error for my 1mm BGA with coutyard vias



I read this as "the SM2SM distance for the checked object is to small. And now i am lost. 

When i measure the distance in Xpedition, the distance is 0.197mm which is OK.




Is anyone here also using this check also and recognized this? Is my understanding of the check incorrect? or is it a bug?



regards, cHARLES