What is resistance circuit? A resistance circuit is a circuit consisting solely of a power source and a linear resistor, and is the degree of obstruction encountered by the flow of current through the circuit, which is usually measured in ohms (Ω). A distinctive feature of resistance circuits is that the electrical energy is converted […]
Polyimide PCB is a printed circuit board made of polyimide as the main material, and its unique performance makes it occupy an important position in the electronics industry. Polyimide, this high-performance engineering plastics, with excellent high temperature resistance, chemical resistance and electrical properties, is the ideal choice for PCB boards in aerospace, defense and other
In the electronics industry, pcb solder mask material is an indispensable basis for the construction of electronic devices and systems. The quality and technical characteristics of these materials have a direct impact on the performance and reliability of the final product. Common pcb solder mask material When selecting circuit board soldering materials, focus on the
For electronic equipment, work will produce a certain amount of heat, so that the internal temperature of the device rises rapidly, if the heat is not promptly distributed, the device will continue to heat up, the device will fail due to overheating, and the reliability of the electronic equipment will decline. Therefore, PCB Thermal treatment
Round PCB Board is a printed circuit board whose shape is circular. It is commonly used in consumer electronics, wearable devices, etc. Compared to traditional rectangular boards, round PCB board has the following significant advantages:High space utilization: For devices that require tight integration and full use of internal space, such as miniature sensors, wearable devices,
Whether it is the production or removal and replacement time, will be left on the circuit board some of the solder left behind the slag, to clean up these slag will not affect the use of the circuit board. So how to remove solder from circuit board? The first:Clean up the circuit board on the
In the PCB prototyping process, PCB rework is the process of repairing or modifying a PCB that has already been produced. When a sample PCB has design errors, soldering problems, component failures, or other non-conformities, the rework process can help fix these problems so that the PCB meets the design requirements and works properly. Steps
PCB reflow soldering hot plate is a process that involves re-melting a paste solder that has been pre-coated on a printed circuit board pad to make a mechanical and electrical connection between the solder ends or pins of a surface-mounted component and a printed board pad. PCB reflow hot plates, as a method of soldering
PCB voltage clearance, usually refers to the minimum distance between different conductive parts of the PCB (such as alignments, pads, vias, etc.). This distance is to prevent electrical short circuits and ensure electrical insulation and set up, and is affected by a variety of factors, including PCB operating voltage, dielectric strength of the insulating material,
PCB etching is the process of removing unwanted copper (cu) from a circuit board. When it is not needed, it is simply non-circuit copper that is removed from the board based on the PCB design and the desired circuit pattern is obtained. In other words, etching is like chiseling a circuit board; let’s say the
What is an AOI?AOI, or Automated Optical Inspection, is a device based on optical principles to detect common defects encountered in welding production. It is a newly emerging, but rapidly growing, new testing technology. When automatic inspection is performed, the machine automatically scans the PCB with a camera, captures images, compares the tested solder joints
FPGA (Field-Programmable Gate Array) is a semiconductor device that consists of configurable logic blocks and interconnects that can be programmed to implement various digital circuits. A microcontroller is a single-chip microcomputer that integrates the main parts of a microcomputer on a single chip. Main components of FPGA Logic Block Logic blocks are the basic building
Lead solder is a traditional soldering material used in the production of electronic components, and its main component is lead. Lead-free solder is a new type of solder that is widely used without the addition of lead. lead vs lead free solder Leaded solder: This type of solder alloy contains lead. Common leaded solder alloys
Rigid Flex PCB Stackup refers to the combination of rigid PCBs and flexible PCBs to form a stack of circuit boards with a multi-layer structure. This technology combines the stability of rigid PCBs with the flexibility of flexible PCBs, allowing for better bending and folding properties while maintaining structural strength. Typical flexible circuit boards or
In the electronics manufacturing industry, soldering is a critical process, and the electronics soldering temperature is a key factor affecting the quality and effectiveness of soldering. The selection and control of soldering temperature is not only directly related to the firmness and stability of the soldering point, but also affects the performance and reliability of
Surface mount technology is an electronic assembly technology that mounts components directly onto the top surface of a printed circuit board. In contrast, through-hole assembly technology, the traditional method, requires components to be inserted into pre-drilled holes in the PCB and then connected via bottom wave soldering. While the differences between the two methods may
Transistor circuit board is a common type of circuit board used in electronic products, using transistors as the main component, and can be used for a variety of circuit applications such as amplification, switching, and modulation. A transistor is a semiconductor device that is special in that it can control the flow of large signals
SMD soldering paste is a kind of soldering material specially used in surface mount technology (SMT). In the SMT process, solder paste plays the role of adhering to components, promoting solder wetting, removing oxides and impurities, protecting the surface from re-oxidation, and forming a strong metallurgical bond. Solder paste printing is the first process of
What is electrostatic coating?It is a coating method that uses a high voltage electrostatic field to cause negatively charged paint particles to move in the opposite direction of the field and adsorb the paint particles on the surface of the workpiece. A thicker coating can be obtained in a single application. Spraying equipment consists of
PCB corrosion is a major cause of electronic product failure. Initially the effect of corrosion is to increase the resistance of the copper traces on the board, but as the level of corrosion increases, the PCB becomes less efficient or even stops working. Corrosion is an oxidizing process that occurs when oxygen combines with metal,
Applying a metallic/organic coating to bare pads is called surface finishing. The surface finish protects the copper pads from scratches and oxidation while promoting soldering in the reflow oven. While there are several types of surface finishes, ENIG vs ENEPIG are the two common types. Manufacturers typically use them on ceramic PCBs, flex boards, and
In the manufacturing process of electronic products, flux, as an important soldering auxiliary material, plays a key role in connecting electronic components with circuit boards. However, while flux brings convenience, its residue problem has also become a challenge that cannot be ignored. Excessive flux residue not only affects the appearance and quality of the product,
SMT production line, full name surface assembly technology (Surface Mount Technology), is a modern electronic assembly technology. A new generation of electronic assembly technology developed from hybrid integrated circuit technology, characterized by the use of component surface mount technology and reflow soldering technology, has become a new generation of assembly technology in the manufacture of
PCB soldering temperature is a crucial parameter in the electronics manufacturing process. It not only affects the quality of soldering, but also directly relates to the performance and reliability of electronic products. Therefore, precise control of PCB soldering temperature is a key step to ensure the quality of electronic products.The proper pcb soldering temperature is
