Thank you very much for your valuable suggestion! We will solve it as soon as possible!

PCB Manufacturing

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Questions of soldermask
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Telesound Bt.

Is it possible to set a negative soldermask expansion?
Statement: This post is only the personal view of the author and does not represent the opinions of


I have added areas to the solder mask many times without problems but I have never had to add negative solder masks. I think you can do in DEX as reshaping the solder mask defined for the pad.


You can use the developer of AutoTRAX DEX.


I am guessing you are making a flex board.


I appreciate your article very much. Wait for your next writing.

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