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The effect of PCBA design defect on manufacturability
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The effect of PCBA design defect on manufacturability

PCBA is an important component of electronic products, the welding quality of PCBA directly depends on the PCB wiring/layout and pad design, and the PCB wiring/layout and pad design depends on the PCBA assembly mode and process flow. The design defects of PCBA are difficult or even impossible to solve in the production process. The negligence of PCB design quality control will lead to the waste of components, materials and working hours, and even cause heavy losses. The problem is: in the face of the above circuit design errors and lack of manufacturability, our individual enterprise leaders and circuit designers are still talking about "our products can be designed, but can not be done!" The assembly and welding quality problems caused by circuit design errors and lack of manufacturability are attributed to manufacturing, hoping to solve the product quality problems caused by design errors and lack of manufacturability by putting technology on the "first line".

In fact, the so-called "design developed" products whether manufacturability, itself is questionable. Even if the "product" of good manufacturability, but also need advanced technology and skilled high skilled personnel, in order to become the market demand of goods!

PCB board

The traditional design method emphasizes the design speed and only emphasizes the realization of product function in the first design stage. As it is impossible to fully consider the manufacturing requirements in the design stage, coupled with the lack of knowledge and experience of designers, the result is unmanufacturability, poor manufacturability or design errors, which requires the PCB designer to modify the design scheme, design again or several times, and make the prototype again for each improvement. In order to obtain a satisfactory product, we need to repeat this process many times, resulting in prolonged product development cycle and higher costs.

Circuit, structure and technology are the three main technical elements of electronic products. Advanced and perfect electronic products not only need technologically advanced and economically reasonable circuit scheme and structure design, but also need advanced technology. The final realization of the product and whether it has market vitality largely depend on the advanced degree of technology.

For electronic products, circuit design product function, structure design product form, process design product process. To achieve the quality objectives of GJB and QJ, good design quality is the premise, including assembly mode, package type of components used, component layout and density design, solder joint reliability and technology design and printed circuit board structure, material and process design.

"Design should be designed for manufacturing", strengthen the circuit manufacturability, make the circuit design in accordance with the requirements of standardization, standardization, improve the design quality of circuit design, eliminate the problem as far as possible in the design stage is the fundamental purpose of manufacturability design. Practice has proved that the quality and reliability of products are designed, circuit design is the main way to realize the circuit function of electronic products, plays a pivotal role in the circuit design personnel design products do not meet the national standard, national military standard or the relevant standards of the electronic industry, from the production practice of the unit, lack of manufacturability, The product loses the basic premise of achieving its quality and reliability. No matter how advanced the circuit scheme and structure design of an electronic product are, if the lack of manufacturability, the product can not be finally realized, nor can it have market vitality.

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