I. Introduction The purpose of Prinetd Circuit Board Etching Process: After the circuit is electroplated, the board removed from the electroplating equipment is processed to complete […]

1. Classification of Electroplating Processes: Acid Bright Copper Electroplating Nickel/Gold Electroplating Tin Electroplating 2. Process Flow: Pickling → copper plating on the whole PCB board → […]

(3) Acid Degreasing ① Purpose and Function: Remove the oxides on the copper surface of the circuit, the residual glue of the ink residue film, and […]

(9) Nickel Plating ① Purpose and Function: The nickel-plated layer is mainly used as a barrier layer between the copper layer and the gold layer to […]