As the world's largest consumer market for integrated circuits, China relies heavily on imports for most of its products. According to data from the General Administration of Customs, China has adjusted import tariffs for rigid-flex board products. The vast majority of PCB products purchased in specific sizes such as size are facing import substitution. Therefore, in order to meet the actual selling price of PCB products in China, market participants should cover the key links of cost reduction.
In 2014, the launch of China's 10 aid key industries development task also laid the groundwork for increasing potential import customs clearance, printing, manufacturing, storage and other business needs in different fields for the basic PCB industry.
With the increasing demand for high-density and fine-spaced components and the increasing number of imported equipment, the prices of raw materials upstream of PCBs have also increased. On the other hand, with the implementation of national policies to support the development of the PCB industry, China's PCB industry has also been under certain pressure. From the perspective of electronic material import requirements, including raw material types, performance, reliability, performance, quality, and safety, PCB manufacturers should start from three aspects: core technical capabilities and research methods, process technology, supporting systems, and specialized equipment.
For a PCB factory, the strictest policies mainly involve the efforts of raw materials, equipment, and personnel. No product can succeed, so reliability testing of electronic components is crucial. Under the strictest testing methods, ensuring the reliability of PCBs by PCB factories is a crucial aspect that deserves attention.
Today, the editor has organized some PCB testing methods for everyone, hoping to help everyone.

Mechanical processing: Electronic components should make preliminary preparations for raw materials before PCB processing.
● PCB screen printing layers for plates, solder mask layers, resins, characters, cover plates, solder pads, and various labels, screens, nameplates, screens, and lead-free materials.
New energy material PCB process: Printed solder mask layer, characters and film, drilling, etc. on the PCB.
Hot air leveling process (cold air leveling, active electric light source), pre-treatment before electroplating (PTH/FOG).
● Etching process, tin removal/flipping, electrical testing, wire stripping, wire inspection, and electronic lead terminal electrical testing functions.
● Development process, tin stripping, bridging, film stripping, pre-treatment, post-treatment, protection, flux system, etc.
Impedance control display device: digital display is intuitive, color automatic, DC voltage, strong light, flowing water, differential, independent lighting, coaxial.
Process window: can adjust functions, constant current, constant resistance, constant power, constant voltage, and phase difference at will.

PLC control and display system: an efficient I/O control and human-machine dialogue interface for the industry.
Operating environment: temperature -10 ° C~+40 ° C, humidity<80%, altitude<4000m.