Talking about PCB fast proofing

PCB proofing refers to the production of a small number of PCB templates for functional debugging before the start of mass production of circuit boards; After the function debugging is completed, the subsequent batch production can be carried out. This way can avoid the production risk and reduce the loss caused by product errors.



1. Speed



Time is a very important factor in PCB industry. Delivery time and quality are the hard power of the factory, and are also the most favored by purchasing customers. Currently, PCB proofing factories generally provide urgent services, such as 12-hour and 24-hour urgent shipment; Normally, the normal delivery time of single and double sided boards is 2 days.



2. Quality



The quality of PCB proofing cannot be ignored. From raw materials and drawings to production, testing and quality control, every link needs to be strictly checked. Take the ordinary double-sided plate for example, the plate materials generally include FR-4, aluminum substrate, CEM-1, etc. The thickness of the plate ranges from 0.4mm to 3.0m, and the thickness of copper ranges from 0.5oz to 3.0oz. The difference of these materials leads to great difference in the quotation. At present, the better materials used by manufacturers are imported plates.



3. Price



With the development of the industry, the prices of PCB proofing and small and medium-sized batch production are constantly falling. Complete the challenging task with a challenging price, which will be the price trend of the next PCB proofing.



So, what are the criteria for measuring the quality of PCB proofing?



1. The copper sheet is not easy to fall off under high temperature environment;



2. The line thickness, line spacing and line width of the line meet the design requirements to prevent heating, short circuit and open circuit of the line;



3. PCB board has no additional electromagnetic radiation;



4. High temperature, high humidity and other special environments are taken into consideration during PCB proofing;



5. The copper surface is not easy to be oxidized;



6. Reasonable deformation error; The hole position of the circuit board and the deformation error of the circuit design shall be guaranteed within the allowable range.



Measure the printed circuit board with the above six aspects



As a PCB proofing manufacturer, what should we pay attention to when doing PCB proofing?



First of all, after the customer places an order, it is necessary to review whether the uploaded documents meet the factory's process requirements, manufacturing capacity, and whether there are design problems. If there is any inconsistency between the uploaded parameter information and the documents, it is necessary to confirm with the customer at the first time which shall prevail?



Then, check whether the circuit diagram is complete? If it is incomplete, it also needs to be confirmed with the customer; If the bottom screen is the opposite of the top screen, ask the customer whether the bottom screen is positive or negative?



Of course, the most important thing is that the PCB proofing manufacturer must ensure the quality, delivery time and logistics, which is also the most important issue for customers.