pcb surface finish, and color, which is how we got OSH Park’s unmistakable purple soldermask. Finally, since OSH Park needed to aggregate enough orders to send out a panel, orders would take ...

First off, making a PCB easy to read and using sane placement ... but also if you select an appropriate surface finish, and keep the solder mask open, you’ve got a free, full perimeter contact ...

Properties of OSP Surface Finish As a transparent organic material surface finish of PCB, on the one hand, organic solderability preservative (OSP) holds an extremely high requirement for PCB ...