Layer : 16
Material: Taiyao TU-872SLK

Board thickness: 1.8±0.1mm
Copper thickness: 1oZ
Surface finished: Gold plated fingers 30", ENIG：2u"
Outer layer trace width/spacing: 75/75um
Minimum hole diameter: Mechanical hole: 0.20mm, Aspect ratio: 9:1
Solder mask and legend color: Green solder mask with white letters.

The high-speed PCB with gold-plated finger contacts is one of the series of high-speed PCB circuit boards 

developed and produced by Shenzhen Huashengxin Precision Circuit Co., Ltd. 

This type of circuit board is manufactured using Taiyao TU-872SLK high-speed material, 

through processes such as mixed lamination, high-end CNC mechanical drilling,

 and surface immersion gold plating with thick gold on the finger contacts. 

The minimum hole diameter can reach 0.2mm, and the minimum trace width/spacing is 127/75um.

 The gold plating thickness on the finger contacts is 30u. 

This type of high-speed PCB circuit board is widely used in the field of high-speed computer board cards.