PCBA processing tin beads can accept standards
Some industry standards explain tin beads. The categories range from no tin beads allowed in MIL-STD-2000 to less than five per square inch in IPC-A-610C.
Some industry standards explain tin beads. The categories range from no tin beads allowed in MIL-STD-2000 to less than five per square inch in IPC-A-610C.
The production time of SMT patches and DIP plug-ins is relatively short, but also depends on the difficulty of the process and the adequacy of factory orders. The normal lead time for proofing is about 1-3 days. Normal delivery time is about 5-7 days.
The company gives full play to its competitive advantages in scale procurement and quality control, and has signed long-term cooperation agreements with many electronic component manufacturers at home and abroad and around the world to ensure the quality
Long-term maintenance of IC, resistors, capacitors, inductors, audiodes and other components procurement advantages, can greatly save customers' inventory costs, improve production turnover efficiency, save time. Currently for the United States
PCBA welding processing, there are usually many requirements for the PCBA board, and the requirements must be met in order to weld.Then why does the welding process need so many requirements for the PCBA board?
SMT chip processing has an important indicator for processing quality evaluation, that is, the straight-through rate. In the patch processing. SMT process pass rate refers to the proportion of one-time qualification from production to the last process.
In the welding process of SMT patch processing, the substance that can purify the welding metal and welding surface and help welding is called flux, referred to as flux.
The company gives full play to its competitive advantages in scale procurement and quality control, and has signed long-term cooperation agreements with many electronic component manufacturers at home and abroad and around the world to ensure the quality
In PCBA processing, automatic optical inspection is usually set at the last step of the SMT production line, and it is necessary to detect the defects of the product after the completion of the SMT processing process.
R107, C118, Q102, D202 and other numbers are often seen on the PCB board. In general, the first letter identifies the device category, such as R for resistor, C for capacitor, D for diode, Q for transistor, etc.
Poorly welded electronic components. In the face of this situation, we generally remove poorly welded electronic components without damaging the PCB board.
The PCBA board damaged by static electricity is difficult to gradually investigate during functional testing. What is more fatal is that some PCBA boards function normally during testing