Aluminum PCB
1.Fault characteristics and repair of capacitor damage in industrial control circuit boards Faults caused by capacitor damage are the highest in electronic equipment, especially electrolytic capacitor damage is the most common. Capacitor damage is manifested as: Capacitance decreases; Complete loss of capacity; Leakage; Short circuit. Capacitors play different roles in circuits, and the faults they…
Detection Circuit in PCB Reverse Design System 1 Introduction When electronic engineers are performing reverse design or repair work on electronic equipment, they first need to understand the connection relationship between the components on the unknown printed circuit board (PCB), so they need to measure and record the connectivity relationship between the pins of each…
Although the current EDA tools are very powerful, as the PCB size requirements are getting smaller and smaller and the device density is getting higher and higher, the difficulty of PCB design is not small. How to achieve a high PCB routing rate and shorten the design time? This article introduces the design skills and…
The three-coordinate measuring machine is a new type of high-efficiency precision measuring instrument that has been widely used in the fields of mechanical manufacturing, electronics, automobiles, and aerospace in the past three decades. It can detect the size, shape, and relative position of the workpiece, and complete the measurement of the spatial profiles of the…
In order to completely solve the problem of bubbles generated during the pressing of multilayer boards and improve the interlayer adhesion, the use of vacuum lamination technology is an inevitable trend. In terms of positioning technology, pinless positioning technology (MASSI.AM) has been widely used for 4-6 layer boards, and X-ray positioning drilling has been applied…
When designing a circuit, you usually need to lay out the board yourself. Many professional books have detailed introductions on how to use PCB design software, component packaging, distance and other parameters. Here I will summarize my personal experience. Some parts may be incorrect. Friends who know can give me some advice and learn together….
1 Reconfigurable principle based on FPGA FPGA (field programmable gate array) is a programmable logic device, which is developed on the basis of PAL, GAL and other logic devices. Compared with the previous PAL, GAL, etc., FPGA is much larger in scale, while the cost per logic gate is much lower. The high capacity and…
The biggest benefit of copper plating is to reduce ground impedance (the so-called anti-interference is also largely caused by the reduction of ground impedance). There are a lot of spike pulse currents in digital circuits, so it is more necessary to reduce ground impedance. It is generally believed that for circuits composed entirely of digital…
EDA technology is a computer software system developed on the basis of electronic CAD technology. It refers to the automatic design of electronic products by using computers as working platforms and integrating the latest achievements of applied electronic technology, computer technology, information processing and intelligent technology. With EDA tools, the entire process of electronic products…
The impact of integrated passive components on the development of PCB technology Integrated passive component technology can integrate multiple electronic functions, with the advantages of miniaturization and improved system performance, to replace bulky discrete passive components. This article mainly introduces the development of integrated passive component technology, as well as the use of IPD thin…
PCB copy board refers to the service of redrawing PCB data based on existing products (finished products\circuit boards) for re-production when there is a lack of PCB data and the circuit board cannot be produced. Generally speaking, PCB copy board is faster and has better quality than re-developing products, because a PCB design to mass…
In PCB design, routing is an important step to complete product design. It can be said that the previous preparations are all done for it. In the entire PCB, the design process of routing is the most demanding, the most skillful, and the most labor-intensive. PCB routing includes single-sided routing, double-sided routing, and multi-layer routing….
A classic PCB temperature profiling system consists of the following components: · Data collection profiler, which passes through the middle of the furnace and collects temperature information from the PCB. · Thermocouples, which are attached to key components on the PCB and then connected to the accompanying profiler. · Thermal insulation, which protects the profiler…
Introduction Printed Circuit Boards (PCBs) are the foundation of virtually all modern electronic devices. From smartphones and computers to medical equipment and automotive systems, PCBs play a crucial role in enabling the functionality of these devices. This article delves into the intricacies of PCBs, exploring their history, design, manufacturing process, types, applications, and future trends….
1.Layout of devices In the process of PCB design, from the perspective of EMC, three main factors should be considered first: the number of input/output pins, device density and power consumption. A practical rule is that the area occupied by sheet components is 20% of the substrate, and the power dissipation per square inch is…
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