Metal Core Printed Circuit Boards (MCPCBs) offer several advantages over traditional FR-4 PCBs, which have a fiberglass substrate with a copper layer. The key advantages of MCPCBs include: Thermal Conductivity: The most significant advantage of MCPCBs is their high thermal conductivity. They are designed to dissipate heat efficiently, making them ideal for applications that generate…
Metal Core PCB Surface Mounting Components A key factor in incorporating MCPCB design is the use of surface mounted components instead of any plated through holes. The reason is that the bottom of the layer structure is thick metal sheet, so plated through holes (or non-plated holes with conductive element leads inserted into them) will…
There are four special plating methods in the production of PCB. They are row plating, through-hole plating, coil-driven selective plating and brush plating. 1. Finger row electroplating Rare metals are often plated on edge connectors, edge protruding contacts or golden fingers to provide lower contact resistance and higher wear resistance. This technology is called…
1. Contacts: Connectors are the core parts of the electrical connection function. Generally, the contact pair is composed of positive contacts and negative contacts, and the electrical connection is completed by the insertion of negative and positive contacts. Positive contact parts are rigid parts, and their shapes are cylindrical (circular insert needle), square (square…
High-frequency board refers to: high-frequency printed circuit board refers to the high-frequency device produced in a specific high-frequency substrate copper clad board, referring to the common FR4 rigid PCB manufacturing process. The main factors to be considered in the selection of high frequency sheets include dielectric constant and tolerance (Dk), loss factor (Df), thermal expansion…
Installation Forms of Electronic Components For different types of components, their shape and lead arrangement are different, and their installation forms are also different. Here are some common installation forms. 1. Installation form of veneer type The mounting type is to install the components close to the surface of the printed circuit board, and the…
1. Width selection criteria of printed conductors for custom circuit board China: The minimum width of printed conductors is related to the current flowing through the conductors: the line width is too small, the resistance of the newly printed conductors is too large, and the voltage drop on the line is also large, which affects…
Printed circuit board is an important electronic component, the support of electronic components and the carrier of electrical connection in the electronic components. The role of PCB After the electronic equipment adopts the printed board, the error of manual wiring is avoided due to the consistency of the same kind of printed board, and the…
1. According to the process characteristics, there are two types of gold plating: cyanide-free gold plating and cyanide-plated gold plating. Cyanide solution is divided into high cyanide solution and low cyanide solution. 2. According to the concentration of hard gold plating solution, the gold plating solution is generally acidic, and its gold content is low,…
Edge plating is the process of plating a thin layer of copper and other metals on the sides of the PCB board according to the principle of electrolysis. The process of attaching a layer of metal film to the surface of metal or other material parts by electrolysis realizes that the side of the PCB…
A Printed Circuit Board, commonly known as a PCB, is a critical element in modern electronics. It serves as a foundation for electrical components and connections, enabling the assembly of complex electronic circuits. This article provides an in-depth look at the history, types, and significance of PCBs in the world of technology. The Evolution of…
There are many friends, they are not very clear about the “hard gold” and “soft gold” on the circuit board. It is still believed that electroplating must be hard gold, while chemical gold must be soft gold. Now let’s introduce: In fact, electroplating itself can be divided into hard gold and soft gold, because hard…
1. IoT PCB design field IoT products usually collect information from the real world, hide it in the digital world, and then transfer the data to the cloud. Some analysis may be done and the results sent back. Therefore, there are four main areas of IoT design: (a) Simulation (b) Digital (c) MEMS (d) RF…
Each rigid and flexible printed circuit board (PCB) is designed differently and can be customized according to the purpose of the PCB. So is the basic material of PCB – glass fiber is a popular basic material, but aluminum based PCB is also very effective in many applications. The aluminum printed circuit board is composed…
PCB gold finger is a narrow gold-plated connector on the edge of PCB, which can be used to connect multiple boards. Gold fingers are chosen because they have the highest corrosion resistance and conductivity, second only to copper and silver. Sometimes gold, in combination with cobalt and nickel, increases the wear resistance of the fingers.…
As a special interconnection technology, the multilayer flexible printed board can reduce the assembly size and weight of electronic products, avoid wiring errors, and realize three-dimensional assembly under different assembly conditions. It has the characteristics of light, thin, short and small, and has been widely used in computers, avionics and military electronic equipment. However, multilayer…
