What is the PCB solder mask opening
What is the PCB solder mask opening The circuit is covered with a solder mask on the <a href="https://www.kingfordpcb.com/">PCB</a> to prevent short circuits and damage to the device. The so-called solder mask opening is to remove the paint layer on the circuit so that the circuit can be exposed to tin. The golden finger here is to open, and there is a very common function to insert and open the opening, that is, to increase the thickness of the copper foil in the later stage, which is convenient for overcurrent, which is in the power supply board and the motor control board. Openings and bright copper in <a href="https://www.kingfordpcb.com/">PCB design</a> In the design, customers often ask for openings and bright copper. Because the customer is also ignorant, or is not very clear about this process, communication is very troublesome. In the design, we often encounter customers who need to add shielding on the side of the board, partly bri...