JLC are telling us that flex pcbs need min 0.15mm soldermask opening. This is not written on the capabilities page anywhere in the english version (chinese refs it a bit, [https://www.jlc.com/portal/vtechnology.html](https://www.jlc.com/portal/vtechnology.html) ).
I can't see how it would be checked on easyeda pro with DRC settings. Note - this is different to soldermask expansion - I am talking about soldermask opening - as shown by green arrow below.
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Ideas? Thanks all!
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