In the production process of ceramic PCB circuit board processing, laser processing mainly includes laser drilling and laser cutting. Ceramic materials such as alumina and aluminum nitride have the advantages of high thermal conductivity, high insulation and high temperature resistance, and are widely used in the fields of electronics and semiconductors. However, ceramic materials have […]
Multilayer PCB is used as the “core main force” in the fields of communication, medical treatment, industrial control, security, automobile, electric power, aviation, military industry, and computer peripherals. As the product features more and more and the circuits become more and more dense, the production difficulty becomes more and more difficult. At present, domestic PCB […]
Both DPC ceramic substrates and LTCC ceramic substrates are ceramic-based circuit boards with good thermal conductivity, high insulation and high air tightness. In various fields of application products, what is the difference between DPC ceramic substrates and LTCC ceramic substrates? 一、The production process of DPC ceramic substrate and LTCC ceramic substrate is different 1.DPC ceramic substrate and process characteristics The DPC ceramic substrate […]
With the development of society, more and more things are becoming more and more intelligent. The premise of this is to have more circuit board SMD to control these devices, and FPC patch processing is one of the most important links. The quality of FPC SMD processing determines the life and quality of this product. […]
What is PCB copper cladding? Copper pouring is to use the idle space on the PCB as the reference plane, and then fill it with solid copper. These copper areas are also called copper pouring. The significance of copper cladding is: reducing the impedance of the ground wire and improving the anti-interference ability; reducing the […]
PCB proofing refers to the trial production of printed circuit boards before mass production. It is mainly used for electronic engineers to design the circuit and complete the drawing of the PCB, and then conduct a small batch trial production process to the circuit board factory, that is, PCB proofing. The following is an introduction […]
In PCB design, the pad is a very important concept, and PCB engineers must be familiar with it. However, although familiar, many engineers have little knowledge of pads. Today, the circuit bacteria takes you to understand the types of pads and the design standards of pads in PCB design. Pad, the basic unit of surface […]
Gold FingerOn computer memory sticks and graphics cards, we can see a row of golden conductive contacts, which are called “gold fingers”. The Gold Finger (or Edge Connector) in the PCB design and production industry uses the plug of the connector as the outlet for the external connection of the board to the network. Next, […]
Treatment before copper sinking Deburring: The pre-copper substrate goes through the drilling process. Although this process is prone to burrs, it is the most important hidden danger of metallization of inferior holes. It must be solved by the deburring process. Usually mechanical methods are used to make the hole edge and inner hole wall free […]
The main reason for the reserved board edge in the production of Rigid-flex PCB is that the SMT placement machine track is used to clamp the circuit board and flow through the placement machine, so components that are too close to the edge of the track are sucked by the SMT placement machine. When the components […]
Basics of Heat Transfer On a fundamental level, discussion about heat transfer includes two topics: temperature and heat flow. Temperature indicates the level of thermal energy that’s available, while heat flow says that thermal energy moves from one place to another. You will come across a few material properties that can modulate heat quite effectively […]
1.Power layout and wiring related The current required by digital circuits is often discontinuous, so inrush current will be generated for some high-speed devices. If the power traces are very long, high frequency noise due to inrush current can be introduced, and this high frequency noise can be introduced into other signals. In high-speed circuits, […]