PCB Technical discription: layer:6 materialï¼ÂÂFR4 Board thickness: 1.0mm Surface finishï¼ÂÂimmersion gold Min through holeï¼ÂÂ0.1mm(4mil) Min line widthï¼ÂÂ0.1mmï¼ÂÂ4mil) Min line spaceï¼ÂÂ0.1mm(4mil) Special requirementsï¼ÂÂburied and blind via +controlled impedance RoHS Product use: Mobile phone