After the rework operation is complete, some test acceptance work needs to be done. This can help manufacturers determine the effect of rework, test the quality of electronic products, and verify the reliability of products. Test acceptance can be carried
Circuit diagram design: As mentioned earlier, circuit diagram design is the key to electronic machining and has a great impact on PCBA quotation.
Surface mount testing can effectively test surface-mount components on the circuit board, such as chips, capacitors, resistors, etc. In addition, when performing surface mount tests, it is also possible to check whether the solder joints on the circuit bo
From passive components to active components and integrated circuits, all eventually become surface mount devices (SMDS) and can be assembled by pick-up and drop devices. For a long time it was thought that all pin components could eventually be packaged
The production process and chemical solution of different PCB design manufacturers are still very different. Before the design of the wastewater treatment project, participate in the waste water diversion work of PCB board design and production, and verif
Whether the edge of the outer frame of the power supply layer in the multi-layer board is reduced, such as the copper foil of the power supply layer is exposed outside the board, which is easy to cause short circuit.
There should be a certain distance between the printed wire and the edge of the PCB (not less than the board thickness), which is not only easy to install and mechanical processing, but also improves the insulation performance.
For amplifiers with push-pull circuit and bridge circuit, attention should be paid to the symmetry of electrical parameters of components and the symmetry of structure when arranging, so that the distribution parameters of symmetrical components are as co
IPC's monthly PCB industry statistics are derived from data regularly provided by a representative sample of rigid and flexible PCB manufacturers in the United States and Canada. IPC will issue monthly PCB book-to-bill ratio and PCB statistics project rep
Analog circuits use star ground. The current consumption of audio power amplifiers is usually large, which can have an adverse effect on their own grounding or other reference grounding.
PCB, as the soul of China's intelligent manufacturing, determines the grade of electronic products, whether it is low-end or high-end. Today's IC technology replacement speed, manufacturers are doing everything possible to improve electronic products IC t
PCB assembly, do not apply any solder on the top or bottom pad. Use screws with built-in washers to achieve tight contact between the PCB and the metal case/shield or ground surface bracket.
Telegram