What are the quality inspections of solder joints in SMT processing?

In today's electronic product market, the development of various common electronic devices in life towards miniaturization and precision is an unstoppable trend. Miniaturization is inevitablesmtThe hook for surface mount technology (SMT) processing in electronics factories is also the reason why SMT processing plants have sprung up like mushrooms in recent years. However, for an electronic processing factory to achieve sustainable development, the most crucial aspects are processing quality and service. inSMTThere is a relatively fundamental point in surface mount technology (SMT) processing, but the quality here has a significant impact, and that is the quality of solder joints. To ensure quality, numerous tests will definitely be carried out. Now, let's take a look at JJYSolder paste manufacturerLet me tell you all:

1.SMTQuality inspection of processed solder joints

1The surface gloss of the weld points must meet the production requirements and there should be no defect phenomena.

2The aspect ratio of the components should be moderate, moderatesmtThe amount of welding material and the welding material must completely cover the welding positions of the solder pads and lead wires.

3It has excellent wettability. The edge of the electric welding point should be relatively thin, and the wetting Angle between the welding material and the surface of the pad is recommended300Below the degree, do not exceed the maximum600Degree.

Ii.SMTAppearance inspection of processing

1There must be no phenomenon of missing components.

2There must be no phenomenon of incorrect component placement.

3There must be no short circuit phenomenon on the circuit board.

4There must be no adverse phenomena such as false welding or unstable welding.

smtThe surface mount technology (SMT) processing and spot welding in an electronics factory should be carried out during the service life of the machinery and equipment, under the premise that the mechanical and electrical equipment characteristics are effective, to conduct appearance inspection and ensure the quality of the electronic equipment.

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