What Points Should Be Paid Attention To For PCBA Test Fixtures?

PCBA testing is an extremely important link in the entire Electronic Manufacturing Services. It can strictly control the quality of product shipments in the final stage, find problems in time, so as to adjust the previous processes such as SMT and DIP, optimize the process flow, and realize the use of An inspection chain to control the quality layer by layer. A good PCBA test fixture can make the entire PCBA processing process more efficient. Next, we will explain to you what points need to be paid attention to in a good PCBA test fixture.

The main points of PCBA test fixture production are as follows:

1. According to the test requirements and the test board, after selecting the control method, the structure design of the fixture can be carried out. The carrier board, pressure board, connector module, etc. can be designed. The carrier board/pressure board of the fixture is reasonably avoided. There are corresponding protective measures to avoid damage to the test board during testing.

2. The positioning of the fixture is accurate, and the connection of the connector should be smooth.

3. The layout of the fixture box is reasonable, and the space for wiring and installation of the control system is sufficient.

4. The optical fiber/MIC/SPK/SIM card simulation card slot should be reserved, and the position should be accurate.

5. The interface position reserved by the fixture should be correct and sufficient, and the layout should be reasonable.

6. The locking of the fixture box should be done by means of luggage buckles or press buckles to facilitate the replacement of parts and maintenance.

7. Correct zero point calibration. The zero point drift of the test fixture will change with the change of test conditions or different test fixtures, so the zero point correction of open circuit and short circuit is very necessary. Therefore, the FCT test fixture has settings for open circuit and short circuit correction.

8. When the fixture has broken needles and aging, the needles can be replaced for maintenance and continued use. If the fixture is damaged and cannot be repaired for use and the customer changes it and no longer uses it, it needs to be remade.

PCBA test fixtures are generally customized fixtures for a certain product, which can effectively improve product productivity and quality assurance. As a professional electronic manufacturing service company, Tecoo can provide customized PCBA test fixtures for your products to ensure that the quality of your products meets or exceeds your requirements under the premise of fast delivery.