Reliable PCB determines the quality of the end product(electronics manufacturing expo news)

21 Jul 2019

PCB is the core of electronic products. Reliable PCBs are the key to ensuring that your product meets design performance. If the PCB fails, the product is likely to lose its function. This newsletter will focus on several electronics manufacturing expo ways to achieve optimal reliability.

Reliability is a key factor from the beginning of the PCB production process. If there is a problem with the reliability of the PCB, the end product will be at risk. It is very important to be foolproof at the beginning. If you try to improve reliability after the product is designed and enters the production process, it will bring huge electronics manufacturing expo costs to the product owner. For some products (such as medical equipment or cars), this problem is even a matter of life and death.

NCAB UK Sales Director Ryan Pellow

Ryan Pellow, NCAB's UK Sales Director, explained, “After electronics manufacturing expo assembly and delivery of the end product, the PCB becomes a forgotten component that is installed in the same product as other components; at this point, it is easy to forget that it is invisible like a PCB. Small things can affect the reliability of end products."

Eliminate hidden dangers in time

To produce a reliable PCB, all aspects of reliability must be considered early in the production process. If there is a problem with the PCB design, this is the best time to solve the problem.

Ryan Pellow said, “The PCB cannot be compared to other components because the PCB is specifically designed for specific products and special applications. As a component, the role of the PCB is critical. A well-designed electronics manufacturing expo PCB can improve the reliability of the end product and reduce it. Risk of failure."

NCAB UK Technical Manager Steve Shipway

NCAB UK Technical Manager Steve Shipway explains, “To ensure the reliability of the PCB, we need to develop design guidelines based on the processing capabilities of the PCB. In this way, we can show the best design balance of the PCB to the customer, and fundamentally ensure that the customer gets us. The most cost-effective and reliable product available."

As technology advances, the solutions available are becoming more complex. Today, PCB components are incredibly small and can add more technology to the PCB. The more technology a PCB contains, the more complex the construction and production process.

Steve Shipway emphasizes, “The most important things to focus on, such as ensuring that the electronics manufacturing expo line width and line spacing of the PCB are compatible with the thickness of the copper layer required. Based on the type of components currently available, there is a smaller line width and line spacing. Means that the copper layer needs to be thinner."

It is critical that designers know what specific copper thickness requirements are for consideration and then proceed to in-depth design. For example, the laminate design, for some of the high current requirements of the PCB, should be designed to ensure that these areas are in the inner layer, not the outer layer, because the outer layer usually has fine electronics manufacturing expo pitch components. This design approach simplifies PCB production.

Steve Shipway said, "The more advanced the technology, the more electronics manufacturing expo effort is required to design the PCB in an optimal way to facilitate production. This is the only way to ensure the ultimate reliability."

Ryan Pellow said, “For high-tech products, the space for error is very small, and the tolerances in each process are small. Therefore, all aspects of PCB design must be strengthened.”

The final inspection is the penultimate step in the production process. The NCAB approved quality controller is visually inspecting the PCB according to our standard specifications. We use electronics manufacturing expo AVI to compare the board to the Gerber file. This process is faster than the naked eye. But monitored by the controller.

The ideal manufacturer of related PCB types

Once the design is complete, it is often impossible to require the original electronics manufacturing expo factory to produce a more difficult PCB under the same process conditions. You must ensure that the manufacturer has matching processing capabilities.

Steve Shipway said, “Although the manufacturing process of double-layer and HDI PCB is similar, the technology used is very different. To ensure reliability, the factory needs to have a deep understanding and control of the production process.”

At the same time, efforts must be made to design PCBs that can be reliably produced by as many plants as possible. This allows for better delivery times and optimal costs while maintaining quality.

Steve Shipway said, "In the face of the latest component manufacturing technology, PCB production often encounters challenging problems. Therefore, we must avoid hasty work." For example, he said, "If you can avoid passing electronics manufacturing expo six or seven layers of blind holes or buried holes. Designed to route from the BGA, and to simplify it to a standard multi-layer PCB, all additional drilling and plating processes can be avoided, significantly reducing costs and improving manufacturability."

Steve Shipway emphasizes, “If you can optimize the design to fit the various process capabilities as much as possible, you can move production from one plant to another to reduce risk.”

If a factory is not performing well or has some problems, you can transfer to another factory. The worst part is that you can only use one factory due to design constraints. ”

Strict requirements above and above industry standards

One factor to ensure board reliability is to ensure it meets industry IPC requirements. The NCAB Group went one step further in this regard and developed its own standard product specifications. Current electronics manufacturing expo specifications include up to 103 different requirements and standards. Factories must comply with these requirements and standards when producing PCBs for NCAB. This is a real-time document that is updated and improved at any time during the process of working with customers. Some of these requirements are more stringent than the IPC Class 2 requirements.

Ryan Pellow explains, “The PCB cannot be treated like any other component because there are too many layers to consider. The industry standard IPC is suitable for many different types of electronics manufacturing expo products, requirements and functional levels. For PCBs, it does not cover all aspects. For product owners, unreliable PCBs pose a huge risk, so it is necessary to consider all aspects."

“NCAB has been supplying PCBs for many years and has accumulated extensive experience in various factors affecting PCB quality and reliability. It may involve such options as material selection, actual hole copper thickness in production, solder mask or blue glue for best results. Product performance and reliability. NCAB has incorporated these parameters into its standard specifications."

“This includes certain aspects that need to be strictly controlled. For example, the factory can only use branded materials approved by us in production. The copper thickness of the electronics manufacturing expo through-hole wall must be 25 μm (avg), which exceeds the IPC Level 2 standard. Line opening and welding repairs, as well as surface cleanliness requirements."

Ryan Pellow also pointed out that "in fact, we also have clear appearance requirements for PCBs, such as excessive scratches on the PCB, indicating that there are regulatory deviations and instability in the production process, which will affect reliability."

Freedom of responsibility and control

It is not easy to clearly understand the various requirements of the factory. For example, to achieve adequate control, it is best to strictly specify the specific materials used for a particular brand. This may sound a bit contradictory, but requiring compliance with the IPC standard (IPC 4101) and approving certain brands should be safe.

Wendy Liu, Quality Manager of NCAB Group, and Jerry Zheng, Production Quality Engineer, at Chongda Plant in Jiangmen

Ryan Pellow explained, “Then, the factory is free to choose the materials that are the most experienced and most suitable for the production process. Forcing the factory to follow a particular electronics manufacturing expo choice can cause problems, because using materials that are not familiar with them can affect the reliability of the production process. "

It is also important to have your own employees in the factory and use their knowledge to check that the product meets the specifications. This also means that you can help them grow their business as the factory needs it.

Steve Shipway said, “NCAB's factories understand why we use these high standards that are higher than IPC requirements. We help our factories to comply with our stringent requirements and our factories can increase their overall production capacity. Our model creates a win-win relationship. Our customers, factories and ourselves can benefit from it."

Anna Lothsson is a sustainability manager at the NCAB Group and is holding lectures for clients and employees.

Ryan Pellow said, “We strive to be our customers' partners, such as helping them design PCBs; likewise, we work closely with factories to help factories improve their production capacity and reliability.

A factory may only focus on a particular technology, but NCAB has accumulated a wealth of experience, including almost all types of PCBs. We are ready to share these experiences and benefit our customers and factories. ”

Knowledge and experience lay the foundation for a reliable circuit board

To ensure that end products work as designed in the short and long electronics manufacturing expo term, good reliability is key.

As stated by Steve and Ryan, NCAB has developed its own PCB standard specifications. This measure ensures that the boards produced are of the highest reliability. In some respects, we increase the requirements if we believe that IPC Class 2 requirements are too low (or non-existent) to achieve board reliability and quality.

We are happy to share our knowledge and experience with our customers to facilitate their processes. We've created a series of videos to illustrate some of our standards. We also hold seminars in various technical fields, and we can download design guides for different types of PCBs on our website.

If we turn our attention from technology to process, we believe that reliability is the top priority. From all aspects of inquiry and electronics manufacturing expo solicitation to logistics solutions, our customers consider us to be a reliable partner.

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