in China, established in 2014, is located in Changsha, Hunan Province. The company focuses on high-speed PCB design, printed circuit board manufacturing, SMT welding processing, and supply chain services. Products are widely used in communications equipment, computers and network equipment, consumer electronics, automotive electronics, industrial control, new energy, rail transportation, and other industries.

pcb through hole plating . Therefore, PCBs are classified according to drilling methods and can be divided into pcb via plating, through hole pcb assembly.

The through hole of the circuit board must pass through the plug hole to meet the customer's needs. In changing the traditional aluminum sheet plugging process, the solder mask and plug hole on the circuit board surface are completed with a white net to make its production more stable and the quality more reliable , More perfect to use. The vias help the circuits to be connected to each other. With the rapid development of the electronics industry, higher requirements are also placed on the PCB manufacturing process and surface mount technology. The plugging process for vias came into being, and at the same time, it must meet the following requirements:

2. There must be tin-lead in the hole, with a certain thickness requirement (4um), to avoid solder mask ink entering the hole, causing tin beads to be hidden in the hole;

The through hole must have a solder resist ink plug hole, opaque, no tin rings and beads, and must be flat.

Capability.

Boar Material

4mil/4mil(0.1mm/0.1mm)

Min thickness(inner layer)

0.5~4 oz

Finished board thickness

±0.10 mm

±10%

±10%

brown oxidation

alignment between ML

0.15mm-0.65mm

Hole precision

±3 mil(±0.75mm)

Hole diameter tolerance(NPTH)

8:01

Alignment of outer layers

4mil/4mil