Printed Circuit Board Assembly(PCBA) Process

 


The printed circuit board assembly test ensures the product is working correctly. Some automated tests

detect the PCB and further enhance PCB efficiency and quality. This test includes burn-in, functional,
and reliability tests. The PCBA test is the final and most important step of the process. It determines
whether the previous steps were successful. There are different detection methods.

1) Visual Inspection:

We can opt visual inspection for a few boards. The designer can check the PCB and make sure it is of
high quality.

2) Automatic Optical Inspection

This method is ideal for PCBA inspection on a large scale. Automatic optical inspection machines use
high-performance cameras that can detect and observe welding problems from different angles.

3) X-Ray:

Check the inner layer of the printed circuit assembly using infrared.

4) In-Circuit Test System（ICT）:

The tester will show the user which component has a fault or where the short is located.

5) QC Manual Inspection:

The IPC-610 standard inspection standard requires that the board be checked to ensure 99.98% quality.

6) QA Inspection of Shipments:

Scanning codes and strict inspections before shipment of products are required to ensure that only
qualified products are shipped.

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