Six common problems most easily committed by Dongguan PCB manufacturers

1. Incorrect PCB panel: the ideal panel will depend on the PCB and the process that the component will go through. If it is too big or too small, it may not be suitable for the production line. Particularly thin PCBs (e.g. 0.8mm) may need to be in smaller panels to avoid bending. The lack of scrap belt may make it difficult to deal with in production and testing. Breaking through in the wrong place may mean that the component is not rigid enough, or it is difficult to break through without damaging the component. Missing fiducials can cause alignment problems. The best practice recommendation is to allow your EMS partner to work with its PCB supplier to optimize the panel design.

2. Over complicating: Unfortunately, if you have SMT on both sides of the component, it will cost more - often twice as much actually - so don't do it unless you really need it. This also applies to through-hole components. Spending more time on PCB design in the early stage can help reduce the time of assembly phase and reduce costs.

3. Component size or shape size error: it is worth checking carefully that the components you specify on the bill of materials (BOM) are actually applicable to the pads designed on the PCB. Also consider whether the main body of the component is appropriate; Usually, components are placed too close, or too close to the edge of the PCB, which may cause them to be damaged during disconnection or processing.

4. Via in pad: This is tempting when space is tight, but in order to avoid solder disappearing from the hole when trying to connect components;

5. Mixed component size: as tiny components become more and more common, there is the temptation to use them, but if they are placed next to larger components that need more solder paste, the process becomes a bit tricky and may require more expensive stepped templates;

6. Improper PCB surface treatment: HASL conforming to ROHS standard is usually designated as standard surface treatment, but it is not applicable to fine pitch components. Silver finishes have a shorter shelf life than most - maybe ENIG is enough? Consider whether the surface originally listed is really the most appropriate and how to change it to another one, which can save time and cost in the assembly phase.

Dongguan Xingqiang circuit board Co., Ltd., established in 1995, is a professional manufacturer of high-precision, high-density and high-quality double-sided multilayer circuit boards. The company now has more than 500 employees, covering an area of 15000 square meters and a monthly production capacity of 80000 square meters. The company's products are widely used in computer peripherals, communication, power supply, medical treatment, automotive electronics, household appliances and other fields.