Digital PCB manufacturing factory in China

Fumax digital PCB manufacturer has advanced production equipment and technology, specializing in the production of various types of high-quality PCB boards.

We focus on quality, efficiency and environmental protection, use digital technology to improve production efficiency, reduce costs, and provide customers with a full range of PCB manufacturing services. Our products are widely used in communications, electronics, automobiles, medical and other fields, and have won the trust and support of our customers.

How are digital printing boards classified?

Digital PCB boards are mainly classified in the following ways:

  1. Structural classification: Classified according to the number of circuit layers, including single-panel, double-panel and multi-layer boards.
  2. Characteristic classification: Classification according to characteristics, including ordinary PCB boards, high-frequency PCB boards and special PCB boards. High-frequency PCB boards are mainly used for the transmission of high-frequency signals, while special PCB boards have special application fields and requirements, such as high precision and high stability.

These classification methods help us better understand the characteristics and application scenarios of digital PCB boards, so as to carry out reasonable design and selection.

What are the processes involved in digital printing board factory manufacturing?

The process of digital printing board manufacturing includes the following steps:

  1. Design files: Use typesetting software to create design files, including required files, paper, binding methods and other necessary information. If the file needs to be sent over the Internet, the printer will provide a form to record all the customer’s requirements to avoid missing specifications. In addition, customers may also provide laser proofs of printed documents so that the printer can clearly understand the final output style.
  2. File preparation: The operator opens the file provided by the customer and checks the format, fonts, image connections, accuracy, trapping and other settings. After the inspection is completed, it is rasterized and electronically impositioned, and then sent to the controller of the digital printing press.
  3. Proofing: Most digital printing machines themselves can be used for proofing, and customers can clearly know the quality after printing. Customers can check the proofs on the spot before printing starts. If the files are transmitted over the Internet, the proofs can be sent by express mail or remotely.
  4. Printing: Although much of the preparation and printing work has been automated, an operator or two is still needed to monitor the digital press and computer. They are mainly responsible for calibrating the settings of the paper; controlling the color and fine-tuning the accuracy by adjusting the dot size to ensure that the file is set correctly; checking the ink or toner to ensure adhesion to the paper; checking the paper supply device to ensure that the mechanical part is operating normal.
  5. Packaging and binding: According to the customer’s requirements and the type of printing, cutting, counting and simple binding can be done online, or it can be completed offline on other binding equipment.

Please note that the manufacturing process may differ for different types and sizes of printed boards. Additionally, the above steps are not exhaustive and there may be other related steps and actions.

Which IPC standards need to be followed for digital PCB manufacturing and design?

Digital PCB manufacturing and design need to be carried out in accordance with multiple standards of IPC. Among them, IPC-7711 and IPC-A-600E are the two most commonly used standards.

IPC-7711 is a standard that provides basic recommendations and guidelines for printed board design and manufacturing. It covers basic specifications for circuit board size, thickness, number of layers, materials, impedance control, etc. This standard provides basic guidance and recommendations for digital PCB manufacturing and design to ensure that manufactured circuit boards meet specification requirements.

Digital PCB manufacturing factory in China

IPC-A-600E is a standard that provides guidelines for acceptable conditions and practices for printed boards. This standard details the acceptable conditions for the appearance and structure of printed boards, as well as inspection methods and quality assurance. It provides inspection and quality control standards for digital PCB manufacturing and design to ensure that manufactured circuit boards meet acceptable conditions.

In addition, there are other important standards organizations that impact PCB design, including ASME, ANSI, IEC, MIL-PRF, and other professional standards for specific products. These standards organizations provide broader standards and guidance for digital PCB manufacturing and design to ensure that boards are manufactured and designed in compliance with industry specifications and requirements.

What are the standards for impedance control in digital PCB design?

In digital PCB design, the standard of impedance control mainly refers to controlling the characteristic impedance of signal lines on the PCB board to ensure signal transmission quality and stability. According to the IPC-2552 standard specification, the impedance of PCB boards is divided into 5 levels, namely 1.25 ohm (low impedance), 2.50 ohm (standard impedance), 3.60 ohm (higher impedance), 4.100 ohm (high impedance) and undefined grade. In practical applications, the appropriate impedance level needs to be selected based on factors such as signal frequency, level, transmission delay, and terminal load impedance. Usually, the impedance control of digital PCB design mainly focuses on the characteristic impedance of signal lines, while the impedance control of power supply and ground lines is relatively loose.

Digital PCB manufacturing factory in China

China’s digital PCB manufacturing factories have developed rapidly in recent years and become an important force in the global PCB manufacturing field. These factories have introduced advanced production equipment and technology, and have strong production capacity and technical strength.

Digital PCB manufacturing factories have high requirements in terms of product quality, production efficiency, and environmental protection. These factories focus on using digital technologies, such as automated production lines and intelligent manufacturing systems, to improve production efficiency and product quality. At the same time, these factories also focus on environmental protection and sustainable development, adopting green production technologies to reduce their impact on the environment.

China’s digital PCB manufacturing factories are widely used in communications, electronics, automobiles, medical and other fields, providing high-quality and professional PCB manufacturing services to domestic and foreign customers. These factories are also constantly strengthening technology research and development and innovation, improving their competitiveness, and contributing to the development of China’s PCB manufacturing industry.

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