The function of DFM in PCBA design
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The manufacturability design of product is called DFM for short. It is a discipline that studies the design behavior rules of the relationship between the physical design of the product itself and the parts of the manufacturing system, and applies it to product design in order to integrate the whole manufacturing system for overall optimization.
As we all know, the design stage determines 80% of the manufacturing cost of products. Similarly, many quality characteristics are fixed at the time of design, so it is very important to fully consider manufacturing factors in the design process. An engineer who doesn't know the flow characteristics of solder paste and solder can hardly understand the causes and mechanisms of bad phenomena, and it is also difficult to deal with various design problems from the perspectives of manufacturability, detectability and cost reduction.
In industrial production, the product quality problems caused by the limitations of DFM all have the characteristics of batch, which is difficult to solve in production. Good DFM can greatly reduce manufacturing defects, shorten manufacturing cycle, reduce costs, optimize quality control, enhance product market competitiveness, and improve product reliability and durability. It can make enterprises get the best benefit with the least investment and achieve twice the result with half the effort.
A large number of successful examples of PCBA design show that manufacturers should pay full attention to the manufacturability, usability, detectability, manufacturing economy and quality stability of PCBA at the initial stage of design, so as to achieve the dual goals of "zero-defect design" and "zero-defect manufacturing".
