在当今科技时代,工业电子产品的用途非常广泛。在工业电子产品中,有一个部件在实现功能方面起着重要作用,那就是工业PCB。
工业 PCB 是用于工业电子产品而非消费电子产品的电路板。它们是为了满足高端工业应用的需求而制造的。工业操作是在极端温度、化学暴露、机械张力、湿度等环境中进行的。工业 PCB 将在这些环境中高效可靠地运行,提供最佳输出操作。
工业 PCB 是复杂系统和机械运行的基本组成部分。它们用于汽车行业、电信领域以及许多其他应用,这些领域的操作模式极端而复杂。工业环境中的 PCB 故障会导致生产出现很多困难,从而导致财务领域的巨大损失,并对生产环境的安全性构成挑战。在这种情况下,工业 PCB 将通过确保工业设备的可靠性和安全性来改变游戏规则并产生影响。
对于工业 PCB,已使用多种材料来满足每种工业应用的要求。这些是用于制造工业 PCB 的一些常见材料。
FR4:这是一种玻璃纤维增强环氧层压板。这也是工业 PCB 中最常用的基板材料之一。由于其成本低、绝缘性和机械性能更好,它们经常用于 PCB 制造。工业 PCB 中使用不同类型的 FR4 材料,例如 高TG, 高速, 无卤等
聚酰亚胺:对柔性PCB,这种材料非常有益,因为它具有很高的热稳定性和柔韧性。这种材料还具有最好的电气性能之一。
金属核心:对导热性、散热性有较高要求的PCB均采用该材料作为基板。
The industrial PCB manufacturing process strictly follows certain regulations to ensure the reliability of each PCB for delivery and operation in industrial equipment. Perform the following process when building industrial PCBs.
The design of each type of industrial PCB is created using specific software based on its operating mode and requirements. This design includes all details of component placement and the layout of conductive parts. During the research and development process of PCB, prototypes are made to test the design before delivering it for full production.
The completed design is transferred through photolithography process. The simple method of this process is to apply photosensitive material onto the substrate material and then expose it to ultraviolet light. In this way, we have obtained the required PCB layout.
The exposed copper of the PCB is removed, leaving only the required conductive path. This is prepared with the help of etching process, which involves the use of chemicals for etching
Drilling is a precise operation performed for installing components, which is accomplished by creating through holes on the PCB board.
To create conductive paths for drilling holes and surface pads, a thin layer of copper is plated on the PCB. This method is called electroplating.
In order to protect the conductive path and avoid solder bridges during assembly, we applied a solder mask layer to it.
This is one of the final steps in industrial PCB manufacturing, aimed at avoiding any short circuits, open circuits, misalignment, and defects before shipment. Using different testing methods such as X-ray inspection, electrical testing, and AOI (Automatic Optical Inspection) to ensure that the PCB meets requirements and standards.
Industrial automation PCBs play a significant role in automation as they provide efficient work for industrial units and production. Even the CNC machines currently in use use use industrial PCBs. This will help CNC process high-power and high-end tasks such as cutting, drilling, and milling.
Nowadays, some fields in the robotics industry are promoting the use of industrial PCBs to enhance the control and movement of robotic arms on assembly lines. This will increase production speed.
We can see a large number of applications of industrial automation PCBs in the automotive industry. They help manage engine performance and fuel efficiency by being applied to the engine control unit (ECU). In certain areas of vehicle infotainment systems, such as navigation and communication, industrial printed circuit boards are used. They can also be used for ABS and cruise control functions to enhance the consistency and safety of the car
Control systems used for large-scale production in industry, such as PLC (Programmable Logic Controller), HMI (Human Machine Interface) typically connected to PLC to display operational status, and DCS (Distributed Control System), all use industrial control PCBs to ensure their smooth operation. The ability to withstand harsh environments and other severe challenges makes industrial control PCBs widely used in control systems.
In the telecommunications field, industrial PCBs have entered some equipment. The switching system for routing data, voice signals, and signal transmission widely uses printed circuit boards in industrial equipment. They also help facilitate wireless communication of base stations by connecting to the network.
Industrial PCBs can be used in power generation systems to control and monitor large generators and turbines. They are also used in renewable energy systems to manage equipment such as solar panels and wind turbines. The implementation of industrial PCBs also contributes to the efficient distribution and management of electricity in smart grid technology.
In order to ensure good performance and service life in harsh environments, some design factors need to be considered when manufacturing industrial PCBs. Below are some of the factors listed.
When we consider industrial PCB design, we need to take into account heat dissipation factors. To achieve proper heat dissipation, it is necessary to add heat sinks, thermal vents, and convenient layouts.
The material used for the substrate can also affect the thermal management of the PCB. Metal cores are usually used as substrates to provide better thermal performance.
Careful placement of components that generate excessive heat is also a key factor in preventing overheating and managing the overall temperature of the circuit board.
In order to achieve appropriate signal efficiency on the circuit board, properties such as line width and spacing between components and layers must have appropriate proportions.
Proper wiring must also be done on the circuit board to minimize possible signal loss and crosstalk.
Impedance control is crucial for ensuring the signal integrity of PCBs. It is always recommended to maintain a consistent high-frequency signal impedance to achieve good signal integrity.
By using a continuous ground plane in the PCB, noise and EMI (electromagnetic interference) in the signal can be reduced.
Industrial PCBs must have sensitive power and ground layers, which will help them reduce noise and maintain stable voltage levels.
Noise in the power supply can be eliminated by adding decoupling capacitors near the power pins of the integrated chip (IC) in the PCB.
In addition, industrial equipment PCBs are also suitable for high-power input and output devices. This can be solved by increasing sufficient wire width, especially on power lines and PCBs in high current areas where voltage drops are often excessive.
To prevent the circuit board from getting damp, appropriate coatings and protective measures will be added to the PCB. This coating helps prevent moisture from entering the circuit. Epoxy resin is a commonly used coating in industrial equipment PCBs.
Ensure that the materials and components used have high temperature resistance. This is crucial in extremely high temperature environments, and the components used should be able to withstand such harsh conditions.
To prevent electromagnetic interference on the PCB, shielding technology must be implemented at the top of the PCB.
The use of ferrite beads and capacitors as filters in circuits helps prevent potential noise and EMI in circuit boards.
By adopting effective grounding methods for circuit boards, EMI can also be reduced or minimized.
When considering the mechanical factors in designing industrial PCBs, it is important to choose the appropriate thickness to ensure that the manufactured circuit board has appropriate mechanical strength and durability.
The mechanical design of industrial PCB boards must also be able to withstand industrial impacts and vibrations.
When designing and manufacturing industrial PCBs, certain industry standards must be met, such as IPC (Printed Circuit Board Association), UL (Underwriters Laboratories), EMC (Electromagnetic Compatibility), and RoHS (Restriction of Hazardous Materials Directive).
Certain safety requirements and appropriate insulation measures must be taken to avoid potential threats and ensure the electrical safety and reliability of the circuit board.
If pursuing cost-effective FPC manufacturing services, choosing a Chinese manufacturer is the best choice. As a manufacturing powerhouse, China has abundant resources, cheap labor, and a large number of technical personnel. We recommend Haibo, a Chinese FPC assembly service provider with over 10 years of experience, who has performed outstandingly in various aspects
Efficient and reasonable quotation:There is an efficient quotation process to assist you in making decisions, providing reasonable prices and highly competitive quotes in China.
High quality and reliable products:Produce high standard printed circuit boards, manufacture and test according to specifications, international standards, and internal controls, and conduct pre production inspections to ensure robust processes.
Quick and on-time delivery:The assembly equipment is in good condition, with high productivity, minimal downtime, short delivery time, and also provides urgent services.
Timely and effective response:Always respond to customer needs, provide accurate information, answer questions through multiple channels, and offer one-stop services.
Strong technical strength:China's FPC manufacturing technology is leading, and Haibo has a complete SMT solution that covers assembly, inspection, and other capabilities. It also provides prototype production and customization services.
mobile phone: 86-15113315665
Contact: Chen Changhai
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E-mall: haibo_fpcba1668@163.com
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