In the production process of electronic products, circuit card assembly testing is a crucial step, which is directly related to the performance and reliability of the product. Circuit card, as a carrier connecting various electronic components, the quality of its assembly directly affects the function of the whole system to achieve. Therefore, a reasonable assembly […]
What is pcb coating material?PCB coating is a thin, polymer film (about 12-200 microns) applied to the populated board. It provides electrical insulation and protects the board from external components or the adverse conditions of the environment in which it is used. Harsh factors include (but are not limited to) the following: Benefits of Conformal
In modern electronic equipment manufacturing, the cost of printed circuit boards (PCBs) represents a significant portion of the total product cost. The custom pcb cost per unit fluctuates due to diverse market demands and technological developments. This article will analyse in detail the main factors affecting the custom pcb cost per unit. 1.Material CostThe material
Flexible printed circuit board (Flexible PCB) has become one of the core components of contemporary electronic devices with its lightness and bendability. Flexible PCB is suitable for smart wearable devices, mobile devices, medical instruments and other fields, and has strong application prospects. However, due to the differences in structure and material properties, the impedance control
Circuit card assembly (CCA) is thin, flat board of dielectric material with conductive paths or tracks etched on their surface. In order to automate the production of CCAs, surface mount technology (SMT) and through-hole assembly machines are often used. Those responsible for the layout design and assembly of this form of manufacturing must have extensive
Insulate Metal Substrate, as a type of computer motherboard, aims to improve thermal efficiency and mechanical strength by applying metallisation to a thick substrate. It is also known as aluminium substrate, aluminium cladding or metal clad PCB (MC PCB), and even thermally conductive PCB (in fact, all PCBs are thermally conductive). Compared to the regular
Concept of Glass Epoxy PCB Glass epoxy PCB is a common printed circuit board material, made of glass fiber cloth and epoxy resin combination. Epoxy resin as a hard and excellent electrical insulation resin material, combined with glass fiber, can significantly improve the strength, heat resistance and stability of the PCB. In conventional PCB materials,
Insulate metal substrates are made using a unique insulating material that presses the copper foil of the circuit board to the metal substrate. The metal substrate is specially treated to increase adhesion and resilience, which allows the board to withstand the mechanical and thermal stresses of many applications. The insulating material is a special blend
Semiconductor base material is an indispensable component in the development of contemporary advanced manufacturing, which is widely used in the production of various electronic devices such as transistors, light-emitting diodes and solar cells. In the manufacturing process of semiconductor products, selecting the right substrate is a crucial part of the process, as the quality of
PCB board to be retained on the part of the copper foil pre-plated layer of lead and tin resist layer, and then chemically corrode off the rest of the copper foil, known as etching. So, what are the types of PCB board etching and commonly used etching agents? 1.Types of etching graphic plating method: etching
With the continuous development of electronic technology, especially the rapid growth of 5G communication, Internet of Things (IoT), smart devices and other fields, the radio frequency (RF) performance of electronic devices has become more and more important. In this process, PCB RF shielding technology came into being and became one of the key technologies that
Dry film pcb is a photosensitive polymer film, usually composed of polyester support film, photoresist layer and protective film. In the PCB manufacturing process, through the exposure and development steps, the dry film can form a precise conductive pattern. Dry film is an important consumable for making dry film PCB and is widely used in
The printed circuit board switches are the components used to control the switching state of a circuit, also known as a switching circuit board or switch board. It usually consists of one or more triggers and controllers, and is used in circuits to control the on/off state of the circuit, thus acting as a switch
Ceramic pcb materials, with their excellent physical and chemical properties, are increasingly being used in electronics, aerospace, medical and energy applications. In this paper, we will discuss the properties of ceramic pcb materials, their preparation process and their wide range of applications. Currently, commonly used ceramic substrate materials for electronic packaging include alumina (Al2O3), aluminium
A water temp pcb is a circuit assembly specifically designed to monitor and control the temperature of water. Its core function is to ensure that various water-related systems operate efficiently and safely within a set temperature range. Such circuit boards typically contain several key components to enable precise management and regulation of water temperature. ComponentsTemperature
Solder beads refer to the small spherical or dotted solder that appears on the pads or on the metal layer on the backside after SMT circuit board assembly. The diameter of the bead is roughly between 0.2mm and 0.4mm, but there are also more than this range, mainly concentrated around the chip resistive components. The
Flex pcb production starts with designing the circuit board structure and layout. A flexible circuit board is a printed circuit board that is designed to be flexible and bendable. Unlike traditional rigid circuit boards, flexible circuit boards are made of thin, flexible materials such as polyimide or polyester film. These materials allow the circuit board
PCB connector is a key component used in electronic equipment to achieve circuit connection and signal transmission, plays a key role in connecting circuit boards and external devices, and achieving signal and current transmission. In modern electronic products, the design and selection of connectors are critical to the performance, stability and reliability of the entire
HF board refers to special circuit boards with high electromagnetic frequency, which are used in the field of high frequency (frequency greater than 300MHZ or wavelength less than 1 metre) and microwave (frequency greater than 3GHZ or wavelength less than 0.1 metre), and the circuit boards are produced by using some of the processes of
Printed circuit board radio frequency (RF) chip, also known as printed circuit board rf chip, is the core components in the field of wireless communications and are responsible for converting RF signals to digital signals or digital signals to RF signals for wireless transmission of information. RF chips are usually composed of several key parts,
A double sided PCB board (or 2-layer PCB) is a printed circuit board coated with copper on both sides, top and bottom. There is an insulating layer in the middle. To use circuits on both sides, there must be a proper circuit connection between the two sides. The ‘bridge’ between such circuits is called a
Bluetooth pcb board is a key electronic component that plays an important role in modern technology. Bluetooth pcb board is a wireless communication technology that transmits data and information through wireless signals. It uses specific frequencies and protocols for communication and allows interconnectivity between devices. The output of Bluetooth circuit boards is to transmit data
In printed circuit board (PCB) manufacturing, pcb warping and twists are often seen as the top defects in nonconformities, which often stems from a lack of in-depth understanding of their causes. Many novice inspectors incorrectly regard perfectly flat, rigid boards as the norm, but in reality, understanding the root causes of PCB warping and twisting
Layers of a pcb is the copper layer, PCB is made of copper layer + substrate compression and become, in addition to a single panel is a layer of copper, double-sided above the board is an even number of pcb layers. Components are soldered on the outermost layer, the other layers play a role in
