Dear all customers, Kindly reminding that the Chinese festival holiday in Weller is 1st Feb to 19th Feb and production will be closed then, please schedule your order beforehand to avoid any production delay due to our holiday.

PTH process

PTH also called Plated Through Hole: the purpose of this process is to plate thin copper (normal thickness is 0.3-0.5um) to the wall of the through holes by A complex chemical process to get the basic electrical connection to the layers.