In the process of maintenance and overhaul of electronic equipment, how to check capacitor is a crucial link. It as electronic circuits in the basic components, the stability of its performance is directly related to the working state of the entire circuit. Therefore, mastering the correct detection method is important for timely detection and resolution […]
With the rapid development of modern communication technology, high frequency PCB communication circuits have gradually become the core component of various electronic devices. In order to ensure the stable performance and signal quality of high frequency communication circuits in high frequency environments, the optimisation of signal integrity (SI) is particularly important. 1.SeparationComponents on a PCB
Copper black pcb is high-performance pcb circuit characterised by a black surface, consisting of a copper layer, a substrate and a surface treatment layer. The copper layer of the PCB is susceptible to oxidation when exposed to the air without the application of soldermask, and both sides of the PCB circuits are covered with a
In electronics manufacturing, PCB (Printed Circuit Board) paste reflow is a crucial process that determines the quality of the connection between the electronic components and the PCB board. Although specialised equipment is preferred in most cases, homemade PCB paste reflow is also a viable option for small batch production or experimental purposes. But how to
Defect pad smt thermal pad is closely related in the production process. Good smt thermal pad design not only prevents defective pads due to overheating, but also improves the overall weld quality. For example, when a hot pad on a solder joint fails to provide sufficient heat, it can lead to uneven melting of the
Soldermask is a layer of PCB oil that covers the copper wires and PCB material to insulate and protect the outside of the PCB from short circuits and the environment. But how to assemble own pcb solder mask? How to assemble own pcb solder maskPre-cleaning: Before the soldermask process is implemented, the PCB surface must
Vias are an important part of printed circuit board (PCB) design and have a significant impact on signal integrity and power integrity. Via impedance calculation not only relates to the signal transmission quality, but also directly affects the stability and performance of the circuit. In PCB layout design, a reasonable through-hole design and its impedance
The thermostat circuit board is the control centre of the thermostat, which integrates temperature sensors, control circuits and drive circuits and other functional modules. The temperature sensor is responsible for real-time monitoring of the ambient temperature and transmits the signal to the control circuit. The control circuit compares the preset temperature value with the current
Circuit board thermocouple connectors are specialised connectors used to connect thermocouple sensors to electronic circuit boards. Thermocouple sensors are commonly used to measure temperature and play a vital role in different environments (e.g. industrial, automotive, home appliances, etc.). The main function of the connector is to transfer the temperature and voltage signals from the thermocouple
Cleaning solution for circuit boards, commonly known as board washer, or circuit board cleaner, is a chemical industry cleaner solution used to clean flux and rosin on the surface of PCB boards after soldering, and is used for semiconductor-related parts, electronic parts, and metal parts, and is an ‘environmentally friendly’ cleaner that combines high cleanliness
PCB cutting is a common operation in electronics manufacturing. While specialised equipment such as laser cutters and shears can provide highly accurate cuts, what to cut pcb with nipper is still a practical and cost-effective option in some cases. Common types of nipperDiagonal Nose nipper: Diagonal nose pliers are the most commonly used cutting tool
In the production process of electronic products, the quality of PCB design directly affects the reliability and performance of the final product. Welding as a key link in the PCB assembly process, the requirements of the design stage is particularly important. The following will be talked about from the welding point of view, design PCB
Radio frequency circuit board plays a vital role in modern communication systems, especially in applications such as wireless communications,radar systems and medical devices. However, RF signals are susceptible to various types of interference during propagation, which can lead to signal distortion and system performance degradation. To ensure the reliability and stability of RF circuit board,
LED control board is a kind of electronic circuit board used to control light-emitting diodes (LEDs). Its main function is to control the brightness, colour and flashing mode of LEDs by adjusting the power supply and signal. LED control boards are widely used in various types of lighting equipment, display screens, advertising boards and other
In the construction of electronic devices, circuit boards are indispensable basic components, which are responsible for connecting electronic components and realising signal transmission and processing. Among the many types of circuit boards, radio frequency circuit board (RF PCBs) and general PCBs display their own characteristics due to their different design purposes and application scenarios. RF
The x-ray machine for pcb is a non-destructive inspection device for printed circuit boards using the X-ray transmission principle. With the help of X-ray imaging, it is able to accurately visualise the internal structure of the PCB as well as the subtleties of the solder joints, such as holes in the solder joints, defective soldering,
Wire bonding is a method of connecting metal leads to pads, i.e., it is a technique for connecting internal and external chips. Structurally, the metal leads act as a bridge between the chip’s pads (primary bonding) and the carrier pads (secondary bonding). In the early days, lead frames (lead frame) were used as the carrier
The circuit board on ac unit is a key component that ensures the efficient operation of the system. It acts as the central nervous system, controlling and coordinating the various functions of the AC unit. The core function of the circuit board is to receive and process data from various sensors. These sensors, which usually
PCB manufacturing is a complex and delicate process that involves numerous matching points,and the slightest mishap can lead to defects in the board, which in turn affects the quality of the entire PCB.Common quality problems such as short circuits and open circuits often stem from multiple factors. Common causes of defects in PCB manufacturing include:Short
The board edge connector is an important electronic component that plays an indispensable role in modern electronic equipment. Its main function is to provide electrical connection and signal transmission, usually used to connect the motherboard with other peripheral devices or modules. The board edge connector usually consists of multiple metal contacts, insulating material, and a
Wireless charger pcb, as the name suggests, is a circuit board used for wireless charging of mobile phones. It adopts advanced wireless charging technology, which transmits electricity to the mobile phone battery through electromagnetic induction, realising a charging method without plugging and unplugging. This technology is not only convenient and fast, but also effectively avoids
Microphone PCB is a key component of audio equipment, mainly used to support the microphone’s electronic components and circuit connections. A microphone is a device that converts sound signals into electrical signals, and microphone circuit boards can be divided into two main types: dynamic and condenser. Moving Coil Microphone PCBA moving coil microphone vibrates the
Selective soldering is a soldering technique used to connect electronic components to circuit boards, primarily to achieve precise solder joints, often in complex circuit designs. This method of soldering is characterised by the fact that only specific parts are soldered, rather than the entire assembly being fully heated, thus minimising the effect of heat on
Flip Chip Bonding is a highly efficient semiconductor packaging method widely used in high performance electronic devices. This technique achieves compact package design and excellent electrical performance by inverting the chip and soldering it to the substrate.Flip chip soldering usually uses solder balls or solder joints to fix the chip to the printed circuit board
