Surface Treatment Method of Gold Fingers PCB

Immersion gold: conventional thickness 1u ", up to 3u" because of its superior conductivity, flatness, and solderability, it is widely used in high-precision PCB boards with buttons, IC, BGA, and other designs. For gold

Board name	Signal acquisition board
Layers of number	4
Thickness of board	1.6mm
Surface treatment	Gold finger + Tin Spray + Hot Air Leveling
4/4	6/6 mil

SPEEDA Technology was founded in 2014, ,we produce pcb goldfinger and