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Because a pcb board can hold hundreds of components, some main chips are very expensive.

The test point is reserved to test the resistance to ground after the surface mount soldering of the component is completed, and then it can be powered on after the test, to prevent the soldering problem from causing a short circuit to burn the component.With an increasing number of companies in China seeking to expand their customer base and compete in international markets, particularly the high-growth industries in the Asia Pacific and beyond, offering a complete range of Pcb assembly service in China will provide a vital edge over local competitors.

At the same time, it is convenient for mass production testing and maintenance.

Therefore, test points need to be reserved for general chip power inlets and outlets, crystal oscillators and other places.

It is also necessary to lead out test points near the memory chip to facilitate the online programming of the tooling.

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What is PCB assembly?