Incoming inspection refers to the quality confirmation and inspection of purchased raw materials, components, or products. That is, when the supplier sends out raw materials or components, the quality of the raw materials or components is sampled and inspected, and the final judgment is whether the process accepts the batch of products. Choosing a trustworthy platform is another important way to obtain high-quality components. These companies accurately meet customer requirements and provide high-quality parts after testing pipelines.

At JingSu Young's Electronics, we provide customers with free DFM inspections, typically including signal and mixed layer inspections, power/ground inspections, drilling inspections, solder mask inspections, and silk screen inspections, to ensure that every detail is correct. Our engineers immediately send engineering inquiries to our customers when they find any information that does not match the original documents.

Automatic Optical Inspection (AOI) testing is very common in the SMT industry and is applicable to all circuit board production and PCB assembly Mainly used to determine soldering issues of components based on their appearance characteristics. It is also possible to determine whether there are wrong components on the circuit board by checking the color of the components and the silk screen on the IC. Basically, each SMT production line comes standard with one or two AOI devices.

For some circuit boards that use BGA packaged components, the first product produced needs to undergo X-ray inspection.

X-rays have strong penetrability and were the earliest instruments used in various inspection scenarios.

A perspective view can display the thickness, shape, quality, and density of solder joints. These specific indicators can fully reflect the welding quality of solder joints, including open circuit, short circuit, copper hole, internal bubbles, insufficient tin, etc., and can be quantitatively analyzed.

Automatic fixture testing is commonly used for mass production of PCBs: its characteristics are that the production volume is usually large, the testing efficiency is high, but the manufacturing cost is high. Each type of circuit board requires specialized fixtures, and the lifespan of each set of fixtures is not very long, usually one year. To meet customer quality and delivery requirements, Jingsu Yang Electronics has purchased multiple automatic testing fixtures to reduce labor costs.

The aging test aims to simulate the long-term working state in practical applications, by allowing the PCBA (printed circuit board component) to work continuously or cyclically for a certain period of time, in order to observe its reliability and stability performance. The main purpose is to identify potential issues that may arise with PCBA during prolonged operation and ensure its long-term stability in real-world applications.

Flying needle testing is usually used for small-scale production, characterized by convenient testing, strong program variability, and good universality. Basically, all types of circuit boards can be tested. However, the testing efficiency is relatively low, and testing each board requires a lot of time. This test needs to be conducted after the product has passed through the reflow oven. It mainly measures the resistance value between two fixed points to determine whether there are short circuits, solder joints, and wrong parts in the components of the circuit board.

Online testing is usually used on mass-produced models, with a large production volume and high testing efficiency, but the manufacturing cost is relatively high.

Each type of circuit board requires special tools, and the testing cost is very high. The testing principle is similar to the flying needle test. It also measures the resistance between two fixed points to determine if there are short circuits, solder joints, and wrong components on the circuit.

This testing method is usually used on some complex circuit boards. The circuit board that needs to be tested must be soldered and passed through specific fixtures to simulate its formal use. Place the circuit board in this simulation. On site, after turning on the power, observe whether the circuit board can be used normally. This testing method can accurately determine whether the circuit board is normal. But there are also issues of low testing efficiency and high testing costs.

Satisfy customers' PCB manufacturing and assembly with the highest quality. A comprehensive quality assurance system and various testing equipment help us monitor the entire production process, ensuring its stability and product quality. At the same time, advanced instruments and technologies are introduced to achieve continuous improvement.

Quality first, customer foremost, continuous improvement, and pursuit of excellence.

Strictly abide by the laws and regulations on pollution prevention and control.

Continuously improve processes to save resource usage.

Gradually manufacturing environmentally friendly products to benefit human society.