What are the disadvantages of pogo pin for shrapnel microneedle module

　　Pogo pin is a kind of precision connector component in electronic products. It is mainly a spring probe made of spring, needle tube and needle shaft through precision instrument. Its internal spring structure is precise, and its surface is usually coated with gold, which can improve the anti-corrosion function and mechanical performance of the probe. Pogo pin is widely used in mobile phones and other electronic products and semiconductor equipment, such as LCD, LCM, camera FPC / BTB connector module test, has the connection function. Because pogo pin is a very fine probe, it can reduce the volume of connector when it is used in precision connector.

　　Pogo pin is very precise, but it also has some shortcomings, such as: poor over-current capacity, the traditional probe can only have 2A at most, which results in many equipment can not be tested; the service life is relatively short, the probe needs to be replaced after a period of use, which will also increase the enterprise cost and lead to the FPC / BTB of the test The connector is damaged, which will cause inaccurate test and further increase the material cost of customers.

　　With the reduction of pitch, the pin diameter of pogo pin will become smaller and smaller, which makes its life and stability in the field of small pitch extremely poor, or even can not be used. The performance of high current spring micro pin module in small pitch is much better than that of pogo pin. Pogo pin is basically unable to realize the BTB connector, and its stability is particularly poor. Pogo is rarely used on the BTB base. Basically, most of them choose the light touch scheme for temporary response. However, the high current shrapnel microneedle module has a special corresponding mode for the BTB bus, which is stable and reliable.

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