1. Test principle: ICT test mainly tests the electrical connection of the circuit board, while FCT test verifies the function of the circuit board by simulating the actual working environment.
2. Test purpose: The main purpose of ICT test is to check whether the components and electrical connections on the circuit board are correct, while the main purpose of FCT test is to verify whether the function of the circuit board is normal.
3. Testing stage: ICT testing is usually carried out at all stages of the circuit board assembly process in order to find and repair problems in time; The FCT test is carried out after the assembly of the circuit board to ensure the quality and performance of the final product.
4. Test scope: ICT test mainly tests the components and electrical connections on the circuit board, while FCT test covers the functional modules of the whole circuit board.
5. Equipment investment: ICT testing requires special test machines and test fixtures, and the equipment investment is relatively high; However, FCT test can choose the appropriate test equipment and environment according to the actual needs, and the equipment investment is relatively low.
ICT test and FCT test have their own importance in PCBA processing. ICT testing ensures the quality of components and electrical connections of the circuit board, while FCT testing verifies the functionality and performance of the circuit board. Choosing the appropriate test method depends on the production requirements and product requirements, and the best practice is to combine the two to ensure the quality and performance of the final product.
