Why should electronic components undergo aging test?

Date：2021-08-10 14:29:38 Views：2015

Nowadays, with the progress of science and technology, electronic manufacturing technology is increasingly developed, the degree of integration is higher and higher, there are more and more processes, the structure is more and more fine, and the manufacturing process is more and more complex. Complex factors will inevitably lead to hidden defects in the manufacturing process. As a competitive manufacturer of electronic products, it constantly ensures the high accuracy of its performance, We should also ensure the stability of its quality. Therefore, it is necessary to carry out relevant inspection, so why do we do aging test?

Usually, such defects can be fully activated (exposed) only after working at the rated power and normal operating temperature of the element for about 1000 hours. Obviously, it is unrealistic to test each component for 1000 hours, so it is necessary to apply heating stress and bias, such as high-temperature dynamic stress test, to accelerate the early exposure of this defect. That is, apply comprehensive external forces such as heat, electricity and machinery to electronic products, simulate harsh working environment, eliminate processing stress, residual solvents and other substances, make latent faults occur in advance, make the products pass the initial stage of invalid bathtub characteristics as soon as possible, and make the products pass the initial stage of bathtub characteristics as soon as possible, which is highly reliable.

After high-temperature aging, the potential safety hazards such as defects, welding and assembly of products in the production process can be exposed in advance. After aging, the electrical parameters can be measured to screen out the invalid or variable value components, so as to eliminate the early failure of products in normal use as far as possible, so as to ensure that the products delivered from the factory can withstand the test of time.

Generally speaking, after the electronic products are manufactured, they have formed a complete product and can play their use value. However, after use, it is found that there will be such defects in use. In most cases, it is found that in most cases, it occurs within a few hours to tens of hours, and then the aging and testing of electronic products are specified, imitating the use state of or equivalent products, This is done by the product manufacturer. After re testing, the unqualified products are left in the factory and the products without problems are given to the users, so as to ensure that the products purchased by the users are reliable or have few problems.