PCB on-line testing system and realization thereof

Abstract

A system for carrying out ICT test on PCB applies switching PCB (printed circuit board) as connection unit to connect probe of tested PCB to ICT test device and switching PCB is designed and prepared by PCB design software. It features that switching PCB is used to replace traditional wire connection clamp for avoiding wire loose and wire broken problem existed on wire connection clamp.

Description

technical field [0001] The invention relates to the technical field of PCB (printed circuit board) design, in particular to an ICT (in-line test) test system for PCB and an implementation method thereof. Background technique [0002] ICT (on-line test, In-Circuit Test) test is to test the electrical performance and electrical connection of the online components made on the PCB. Through the ICT test, you can check whether the PCB has manufacturing defects and whether the components are reliable. The said The ICT test mainly checks the open and short circuit conditions of individual components on-line and each circuit network, that is to say, the ICT test is a standard test for PCB products. ICT testing has the characteristics of simple operation, fast and fast, and accurate fault location. [0003] At present, there are two common ICT test modes: flying probe ICT and bed of needles ICT; the characteristic of the flying probe ICT is that it does not need to make fixtures duri...

AI Technical Summary

Problems solved by technology

Therefore, although this fixture is easy to operate, the cost is higher

Moreover, during the use of the fixture connected by wire, it is easy to cause the wire to fall off or break, which will cause the fixture to be unusable; at the same time, the entire connection operation process is quite complicated regardless of whether long-term connection or short-term connection is used, and it is easy to cause connection problems. error; in addition, interference between cables will also lead to inaccurate testing

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