What is pcb Design For Manufacturing
Design For Manufacturing (DFM) technology is one of the important research contents of full life cycle design, and it is also the method of parallel design for product design and subsequent processing and manufacturing. In the design stage as early as possible to consider the constraints related to manufacturing, comprehensive evaluation and timely improvement of product design, you can get a comprehensive target better design program, and can strive for product design and manufacturing a success, in order to achieve cost reduction, improve quality, shorten the product development cycle.
pcb Design For Manufacturing is to take some manufacturing factors into account when designing, to avoid problems in manufacturing and assembly, affecting the normal assembly and production of pcb boards. dfm strategy is very effective in identifying PCB layout problems, thus optimizing the manufacturing and assembly process, making it more efficient and reliable.
What are the advantages of Design For Manufacturing
1、Reduce costs and improve product competitiveness
Through the implementation of DFM specifications, the company’s resources can be effectively utilized to manufacture products at low cost, high quality and high efficiency.
2、Optimize the production process, improve production efficiency
DFM connects the design department and production department organically to achieve the purpose of mutual information delivery, unified standards, easy to realize automation and improve production efficiency.
3、Facilitate technology transfer, strengthen the company’s collaboration
Through the implementation of DFM, can make the processing unit and need to process the unit between the manufacturing technology smooth transfer, rapid organization of production.
4、Protect new product development and testing
DFM can standardize the product design, to protect the product in the design of the standardized process, to protect the product in the production stage will not have problems.
5.suitable for electronic assembly process new technology
DFM standardized development, can help the company with the latest and fastest assembly technology to seize the market, reduce production costs and maintain competitiveness.
DFM design tips
(1). Reduce the number of parts. Keep it simple,stupid.
(2). Design DVT phase timely introduction of CAE software analysis to correct the design.
(3). Modular design concept, it is better to form their own standardized modules.
(4). Avoid over-design, (best way to save cost)
(5). Try to use standard parts, and raw materials available in the market.
(6). The overall design of the product must consider the assembly process, procedures and techniques. If in doubt, communicate with the production department in a timely manner.
(7). Under the premise of meeting the function, try to use loose tolerance requirements, and do the key component tolerance analysis.
(8). Strictly follow the design Check List to guide the design.
Three phases of the DFM process
1. PCB Design with Correct Footprint and Packaging:
The first phase of the DFM process is the design phase. In this phase, the designer will develop the PCB design with correct footprint and packaging. This is important because a PCB design with incorrect footprint or packaging will increase manufacturing costs as well as assembly time due to increased complexity in terms of assembly.
Hence, it is important for designers to develop a design for manufacturing PCB with correct footprint and packaging in order to decrease manufacturing costs as well as assembly time during manufacturing of a product in order to increase profitability from their products. This will also help companies maintain high margins due to decreased costs associated with manufacturing and assembly of their products through better DFM in PCB.
2. Correct Component Placement on the PCB:
The second phase of the DFM process is the component placement phase. In this phase, components are placed on top-side or bottom-side as per placement rules, rules-of-thumb etc. In addition, this phase also includes proper routing of wires on top-side or bottom-side depending upon wiring standards etc.
Hence it is important for designers to place components on top-side or bottom-side as per placement rules, rules-of-thumb etc. This will help designers to decrease manufacturing costs as well as assembly time during manufacturing of a product in order to increase profitability from their products. This will also help companies maintain high margins due to decreased costs associated with manufacturing and assembly of their products through better DFM in PCB.
3. Proper Wire Routing:
The third phase of the DFM process is the proper wire routing phase. In this phase, wires are routed properly after component placement on top-side or bottom-side depending upon wiring standards etc. Hence it is important for designers to route wires properly after component placement on top-side or bottom-side depending upon wiring standards etc.
This will help designers to decrease manufacturing costs as well as assembly time during manufacturing of a product in order to increase profitability from their products. This will also help companies maintain high margins due to decreased costs associated with manufacturing and assembly of their products through better DFM in PCB.
THE DFM FACTORS
The steps of DFM include the following sequence to determine the process, design, material, environment and compliance of a given product.
1. Manufacturing Process
The first part of DFM is to determine the right types of manufacturing processes to use for the product in question. When you need to produce a product in a certain quantity, the process should reflect the scope of the production and the number of pressings planned for the run.
To determine the best manufacturing process for a given product, you should consider factors like the size of the product and the materials needed for its production. Consider, also, the steps the product’s surface require, and whether any secondary steps will need to take place beyond the fundamental assembly stages.
2. Product Design
The next part of DFM is to examine the product’s design and determine if the specs will suit the finished product, or whether you need to make any additional changes before you commence with production. The purpose of this step is to rectify possible design issues with the prior run and make your production go more smoothly and efficiently this time around.
If you revise an existing design, make sure the modifications are in keeping with fundamental design principles. Be sure to discuss all such decisions in this area with your contract manufacturer, as doing so will help you ensure your upcoming production runs according to the manufacturing principles for the product at hand.
3. Product Material
Another critical aspect of DFM is to determine which materials are necessary for the product in question. Depending on the product’s shape, size and intended use, you will need to take a variety of factors into account, such as the strength, texture and thermal properties required for the material or product.
During this step, you will need to consult with a contract manufacturer to make sure the chosen materials meet the requirements for the production at hand. If you have a certain material in mind, you will need to know whether that material will withstand heat and conduct electricity, as these factors could make or break the product.
4. Eventual Environment
Before you finalize your choices for the process, design and material of the product, you will need to examine the environments in which consumers will use it. Once you determine the kinds of effects this environment could have on the material and the shape of the product, you must then determine whether the three prior DFM choices will suffice.
Design for manufacturing examples include considering how and where consumers will be using your product. If you develop a product for use outdoors throughout the year, the materials will need to be able to withstand the full range of ambient temperatures and weather conditions. If users will be mounting the product onto other objects, the design will need to accommodate a variety of setups.
5. Testing/Compliance
The final stage of DFM is to determine whether the design and materials for the product in question will fulfill the safety and quality standards of the various entities that have a say in the matter. A third-party ISO-certified testing facility can determine this. A neutral manufacturing analyst must oversee the testing.
Pcb manufacturing is a complex process and there are so many processes here. In order to ensure the quality and durability of your products, you have to choose a professional pcb manufacturer to do the job for you.
LST is one of the most experienced customized PCB manufacturing service providers in China. We can provide you with Design for manufacturing services to ensure product quality, save production cost and shorten production time. With a strong team, fully automated pcb production and processing equipment, we offer rapid PCB prototyping, large scale PCB production and assembly services. Quotation is always fast and free.
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