What Are PCB Manufacturing Processes?

The PCB manufacturing of the circuit board prototyping manufacturer goes through a complicated manufacturing process from the initial opening to the final packaging and storage, from cutting the sheet material to the PCB board production. The specific process includes the opening and the inner layer production, lamination, drilling, copper immersion, electroplating, outer layer production, inspection, solder mask, text, surface treatment, final inspection, final inspection, and final packaging and storage.

In fact, after automatic optical inspection, circuit board prototyping manufacturers use a lamination process to produce separate layers. Then drill small diameter tungsten carbide drill bits on the PCB, specially designed to ensure that they will not tear marks. As an alternative, a laser can be used to complete the drilling to provide a very small through hole. The holes can be conductive (either by plating or using perforations). The depth of the holes can be controlled to only allow conduction to specific layers.

Then electroplated with solder to provide a resistant surface for etching. The areas that will not be soldered are covered with solder mask. It is screen printing or photo imaging. Before adding components, test the PCB to ensure proper connections. Once verified, the components are assembled into a functional printed circuit assembly.

The final stage of the circuit board prototyping manufacturer is to apply a coating to prevent corrosion and leakage. The manufacturing process is changing as manufacturers seek to deliver their products, such as the various chemicals used in processes such as lead, in a way that minimizes the potential risks to their production workers. Lead has been used to make PCBs, but greater awareness of its health effects has led to changes in manufacturing technology. Printed circuit design and the FAB highlighted health issues in a recent publication and pointed out that the driving force for change in chemical processing is driven by NGOs.

XPCB Limited is a manufacturer specializing in the production of high-precision double-sided, multi-layer and impedance, blind buried vias, and thick copper circuit boards. The products cover HDI, thick copper, backplanes, rigid-flex, and buried capacitance. Various types of circuit boards such as Golden Finger can meet the needs of customers for various products.