Recently, our company started a new project, and the R&D team has been pushing PCB layout requirements to the extreme. As PCBs size get smaller, the solder mask (S/M) design must also shrink accordingly. However, our current PCB manufacturers struggle to meet these tighter tolerances, and those who can do it demand a price increase. The moment extra cost is mentioned, everyone hesitates and sticks with the existing PCB suppliers, resulting in solder mask misalignment that extends beyond the pads.
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