sales@ipcb.com
Now more and more PCBA manufacturers have introduced the DFM design for manufacturability service, because the design for manufacturability (DFM) in PCBA manufacturing before production can effectively control production costs.
According to the survey,the design cost of electronic products accounted for more than 70% of the total production costs, the specific production process costs, such as operating expenses, data and labour costs, etc., only about 20% of the total cost of production.Therefore, the control of electronic production costs is largely due to the effective control of design costs. DFM can effectively solve this kind of problem.
What is DFM?
DFM means design for manufacturability, Design for manufacturability,that is,from improving the manufacturability of parts, making parts and various processes easy to manufacture, low manufacturing costs, high efficiency, and low cost ratio.
What is DFM?
For SMD factories,DFM is usually operated by the engineers of the component factory before PCBA manufacturing,they are more familiar with the production process of SMD processing,and understand the positive significance of even the smallest improvement in design for high-quality production,which is even more obvious in the large-volume SMD assembly products.
DFM inspection items for PCBA manufacturing include:pad design,component orientation, component spacing, reflow soldering, optical positioning holes, and so on.
The purpose of DFM inspection is to solve the problems that may cause defects in the production process before the official production. Then, the SMD production can be carried out smoothly and the product output will be greatly increased.
The advantages of DFM inspection are mainly in three aspects: improve product reliability, reduce production cost and shorten production cycle.
Improve Product Reliability
Improving product reliability is believed to be a common goal for all original equipment manufacturers (OEMs). DFM inspection ensures that the design function is realised and that critical elements that could lead to production defects are corrected before production begins. The result is an increase in product reliability. For example, some of the defects that occur during reflow soldering are actually due to improper pad design, and if the DFM engineers optimise the design before assembly and production, then these reflow soldering defects will no longer exist.
Reduced Production Costs
In the process of DFM inspection, the SMD assembly process is also one of the DFM inspection items. After DFM inspection, some unnecessary production steps will be eliminated, thus reducing production and labour costs. In addition, as the production process is simplified, related tools, equipment and labour are also saved, which naturally reduces the cost, especially in high-volume production.
Shorter Production Cycles
The sooner an electronic product enters the market, the more benefits it can reap. As discussed earlier, DFM inspection facilitates the smooth production of the product, reducing the time required for production and shortening the production cycle.During the SMD assembly production process, once non-compliant parameters are found to exist, the production parameters have to be gradually adjusted in the following production until they reach the product standard. With DFM inspection, these processes are greatly reduced, resulting in a much shorter production cycle and the opportunity to get the final product to market quickly.
DFM Design for Manufacturing
iPCB is a one-stop electronic manufacturing service provider specialising in PCB circuit board manufacturing, PCBA manufacturing, component sourcing, assembly, testing and burn-in. We need to carry out a DFM design for manufacturability analysis before carrying out PCBA manufacturing to ensure that the project can be carried out effectively.