The fundamentals of IPC standard for PCB assembly

The Institute for Printed Circuits (IPC) is an international association for developing standards in the global electronics industry. Companies can use these standards to ensure their products are of the highest quality. This can increase customer satisfaction and improve their image. As a bonus, it can save companies money and resources.

IPC standards are helpful in many industries, from electronics to PCB design. The organization sets standards that affect the appropriate materials for components and PCB board assemblies. It also influences the types of surface mount devices and surface finishes.

The IPC standard was initially named the Institute for Printed Circuits but changed its name to the Institute for Interconnecting and Packaging Electronic Circuits (IPC). The organization’s name evolved to reflect its new focus on electronic assemblies. Its tagline, “Association Connecting Electronics Industries,” was added later. As a result, the Association Connecting Electronics Industries now has offices around the world.

The IPC began in 1957 and focused on printed circuit boards and electronic assemblies. It is an industry association that advocates for public policy and develops industry standards.

There are several different IPC assembly standards used in PCB manufacture. The first one is the IPC-6011 printed board performance series. It defines quality assurance requirements for PCB electronic assemblies. Other industry standards include the IPC-6010 printed board performance series and the IPC-6012IPC6018.

IPC standards

The IPC standards are voluntary. They can help a PCB manufacturer meet the expectations of a global market. Meeting these standards increases a company’s credibility and enables it to attract new customers. Additionally, it helps improve its product’s quality, reduce electromagnetic pollution, and pass tests for international markets. These IPC standards are also helpful in domestic markets as they help a company differentiate itself from competitors and reduce costs.

IPC standards are an excellent way to achieve consistency in PCB manufacturing. They also minimize miscommunication among contributors and ensure quality and reliability. The use of common terminology in the standards makes it easy to understand and communicate effectively. This also reduces production time and costs. Using the IPC standards can also help a PCB manufacturer meet the requirements of its OEM customers.


The IPC has a long history of publishing standards widely used in the electronic interconnection industry. Its most widely used acceptability standards, IPC classes, reflect the electronics industry’s increasing sophistication and functional performance requirements. Each IPC class has its requirements, and some classes overlap. As a result, users must specify the performance class requirements of their printed boards and may also specify when a specific parameter is acceptable.

IPC is an international organization that brings together printed circuit board fabricators, EMS providers, OEMs, and industry suppliers. Its industry standards cover every stage of PCB design and manufacture, and compliance with these standards will help your products perform better and last longer. The IPC standards have proven extremely beneficial to PCB manufacturers and their customers.

IPC has more than 400 member companies around the world. As a member, your company can list your products and services on the IPC website. Additionally, you can sponsor IPC conferences. This helps IPC members gain exposure to potential customers. It also provides excellent marketing opportunities. Listed products and services on the IPC website are also for those in the industry.


IPC has established three levels of PCB design and quality. These levels are Class 1, Class 2, and Class 3. Class 3 PCBs have a very low tolerance for manufacturing defects. They will not make it to this class if they have multiple defects. Therefore, following the IPC assembly standards is essential to ensure your products meet these requirements.

IPC standards are essential for assemblers, welders, and others who make and repair PCBs. These standards include guidelines for the visual inspection of PCBs. Additionally, they provide PCB design and PCB manufacturing support for various electronic assembly activities. IPC 600 and 610 G are the most recent versions of these standards.

The IPC standards help companies manufacture high-quality PCBs. The IPC standard is an industry trade association that standardizes electronic assemblies and equipment. Its members represent PCB manufacturers, original equipment manufacturers, and PCB assembly service providers.

Class 3 printed circuit boards

Class 3 IPC PCBs are a step up from Class 2 IPC PCBs. The difference is not only in the level of quality but also in the cost. This PCB is often used for consumer electronic products and may have various appearance defects. This PCB is commonly available in television remote controls, wire harness assemblies, LED lights, and children’s toys. They are often the lowest-cost circuit board but do not have a very long life span.

Unlike Class 2 PCBs, Class 3 PCBs must meet even stricter standards to ensure that they meet their specifications. For example, Class 3 PCBs must be extremely reliable and highly resistant to extreme conditions in aerospace, military, and medical applications. As a result, Class 3 PCBs are slower to make and require more care during the manufacturing process.

Class 3 PCBs must meet IPC standards for hole centering and ring width around the hole. In addition, the ring width should be large enough to accommodate fabrication tolerances. In other words, Class 3 PCBs should have enough space around the hole to ensure a good solder joint.

Class 3 IPC PCBs are helpful in products that require high performance continually. This means that the products must not experience any downtime. Their final environment may also be extremely harsh. In addition to life support systems, Class 3 printed boards are in automobiles and military equipment.

Class 3 IPC PCBs are more expensive than Class 1 PCBs. This is because they are generally more expensive and have higher PCB manufacturing tolerances. In addition, PCBs must meet specific standards to pass an IPC inspection. They must also comply with the IPC Class definitions. However, most manufacturers want to stay relevant by meeting these standards.

Cost of class 3 PCB

The cost of PCBs depends on a variety of factors. First, the materials and procedures used for assembly must be qualified and certified. Additionally, CMs should have skilled and certified personnel to handle these boards. All of these factors will influence the cost of PCBs.

Class 3 products are essential in medical and military equipment. Therefore, they must maintain high performance and dependability for a long period. As a result, they need to be clean and free of imperfections. Furthermore, they must not experience downtime. These requirements require a rigorous testing process. This makes Class 3 products reliable and high-quality.

High-performance electronic products such as medical and aerospace equipment must be able to operate in a harsh environment. Therefore, this type of PCB requires extreme precision and quality control. High-quality Class 3 PCBs are expensive and must pass rigorous inspections. However, this type of PCB is not necessary for every product.

The IPC has established specifications for the dimensional accuracy of PCBs. These specifications include requirements for the width of vias and solder coverage in certain areas. For example, class 1 PCBs require no solder coverage, while Class 2 PCBs require a minimum of 180 degrees of solder coverage.

Cleaning requirements

IPC assembly standards for PCB manufacture include cleanliness requirements in IPC-TM650. These standards define the benchmarks for cleanliness and describe different methods for testing bare boards. Ionic contamination, for example, can cause electrical shorts between traces and may reduce the reliability of the PCB. Ionic contamination can also accelerate corrosion.

To maintain the high reliability of printed circuit boards, they should be clean and free of debris. This includes any solder splash or wire clips and minimal electrical clearance. If any of these items are present, it is considered a defect and requires additional cleaning. The IPC assembly standards for PCB manufacture include various standards for cleaning and soldering.

Medical devices require high-quality PCBs. To ensure that the PCBAs produced are safe for use in medical devices, you must adequately clean them after assembly. This is a high-stakes industry, and proper PCB cleanliness is crucial for medical equipment. For this reason, PCB assembly manufacturers must follow strict standards.

Why clean

A lack of PCB cleanliness can result in poor adhesion of conformal coatings. This can affect the reliability of a PCB, causing board-mounted switches and sockets to malfunction. Furthermore, it may result in intermittent connections in cables. To ensure these issues do not occur, PCBONLINE’s advanced process cleans PCBAs before distributing them to the final customer.

IPC assembly standards for PCB manufacture include IPC-J-STD-075 and IPC-1601. These standards give manufacturers specific advice on PCB handling and storage. For example, IPC-1601 advises protecting PCBs from moisture uptake, electrostatic discharge, and physical damage.

IPC standard is an international standards-setting and trade association that develops electronic design standards. It has been instrumental in the globalization of the electronics industry. As a result, anyone involved in the PCB assembly process should familiarize themselves with IPC standards for PCB. Its most common document is IPC-A-610E, which specifies the quality standards for printed circuit board soldering and cleaning. The IPC also provides general guidelines on PCB documentation and terminology.

In addition to IPC assembly standards, J-STD-001 and IPC-A-610 define the requirements for board inspectors. These standards help manufacturing companies maintain a high-quality assembly process and ensure that solder joints are reliable. These standards also help companies improve their processes.

Benefits of the IPC PCB Manufacturing Process

One of the best ways to ensure quality in the PCB industry is to apply IPC standards to the process. This can have a wide variety of benefits for a company, including improved brand identity, reputation, and increased business opportunities. Furthermore, it can be a cost-effective option, as it reduces resource requirements and the risk of producing a product with defects. This process also facilitates a smooth flow of development and production.

THE IPC PCB manufacturing process ensures quality

To ensure the quality of printed circuit boards, the manufacturing process should happen according to the IPC standards for PCB. The IPC is a trade association that establishes and maintains standards for the electronics industry. It was established in 1957 and had more than 3,000 member companies worldwide. Its members include original equipment manufacturers, PCB manufacturers, and PCB assembly service providers.

The IPC standards ensure the quality and consistency of products, which enhance the reliability and performance of end products. These standards are essential for manufacturers to stay competitive in the electronics industry. They also help them maintain consistency, leading to higher customer satisfaction. And the manufacturers of PCBs must meet these standards, or they won’t be able to meet the demands of their customers.

Another benefit of the IPC standards for PCB is that it encourages innovation. By adhering to the standards, companies can avoid misunderstandings that could cause mistakes and delayed production. This also helps companies avoid costly rework and improve their bottom line.


Reliability is a key attribute of the IPC PCB manufacturing process. It is closely related to process control, capability, and PCB design. A reliable product requires careful specifications. With the right specifications, manufacturers and suppliers can create products that meet customer requirements

IPC standards help manufacturers and a PCB designer to create high-quality products by minimizing mistakes. These standards help them produce more consistent products with better quality, which ultimately helps improve company profitability and customer satisfaction. By following these standards, you can increase the reliability of your PCBs and improve your manufacturing process.

IPC standards also stipulate the required solder coverage for joints. This means that the solder leads into the hole. These specifications differ for Class 1, Class 2, and Class 3 PCBs. In addition, IPC standards specify the width of the ring surrounding the hole and the centering of the hole. For example, class 1 PCBs can have a ring 1800 or 900 degrees wide, while Class 3 PCBs must have a ring of 0.050mm or more.


The IPC can improve printed circuit boards’ quality. Its standards are essential at every stage of the manufacturing process, from the layout to the testing. For example, the IPC defines requirements for file formats, circuit board design software, and equipment documentation. This IPC standards matter also help determine which materials are suitable for PCB assemblies and surface mount devices. The organization also plays a crucial role in the testing process.

The IPC has three classes, each corresponding to a different quality level. The lowest class is Class 1, while the highest is Class 3. Each class has its requirements for performance, safety, and quality. The IPC standard sets the standards for most everyday products, including consumer electronics.

The IPC publishes standards for PCB design, fabrication, and inspection. Those standards are essential for maintaining competitiveness in the industry. The IPC also provides excellent marketing opportunities for its members. They can list their products and services on the IPC website and sponsor IPC conferences.


The IPC is an organization that makes it easier for PCB manufacturers to communicate with customers. Its standards and procedures are often revised and improved annually, and contract manufacturers must stay up-to-date with the latest information. In addition, they can benefit from having an in-house IPC trainer who can keep their staff up-to-date with biannual IPC certifications. This can save both time and money.

The IPC has defined three classes of PCBs, Class 1, Class 2, and Class 3. Each class has its own set of standards and specifications. Typically, Class 2 PCBs are ideal for consumer electronics and industrial products. On the other hand, class 3 PCBs have more stringent requirements and are more expensive to produce.

IPC certification ensures that PCBs are of a high quality, which translates into improved customer satisfaction and increased business. It also helps ensure that PCB manufacturers and vendors speak the same language, improving cross-channel communication and reducing reworks and rebuilding. IPC certification also provides guidelines for applying criteria to the manufacturing process and helps manufacturers avoid costly errors.

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