Introduction With the continuous improvement of global environmental awareness, green manufacturing has become an irreversible trend in the electronics industry. Major markets such as Europe and the United States have put forward stricter environmental standards for electronic products. Among them, ROHS PCB, as a basic compliance requirement, is playing the dual role of “pass” and […]
Eutectic soldering, also known as low melting point alloy soldering, is a specific soldering technique. The process involves the removal of unstable oxide layers at the interface between the chip and the gold-plated base by gentle friction at specific temperatures and pressures, which causes the contacting surfaces to melt and form a liquid phase. Subsequently,
LED driver board is used to drive the LED lamps and lanterns circuit board, its main function is to convert the power supply to the current and voltage suitable for the LED work.LED driver board has the characteristics of high efficiency, stability and reliability, can provide constant current output, to ensure that the LED lamps
PCB encapsulation materials consist of substrates, interconnections, frames, interlayer media, and sealing materials. Among these, PCB encapsulation substrate materials serve as electronic components, primarily providing mechanical support, hermetic protection, and facilitating heat dissipation for electronic components and their interconnections.Substrate: High-density multilayer encapsulation substrates primarily serve as an electrical transition between semiconductor chips and conventional PCBs
Welding porosity is a common defect encountered in welding production, formed by the absorption and release of gases (primarily oxygen, nitrogen, and hydrogen) within the weld seam. It not only reduces the effective cross-sectional area of the welded component but also causes stress concentration, significantly lowering the strength and toughness of the weld metal. This
Introduction: The intersection of craft and art In stained glass works, each piece of glass is a narrative of light and shadow, and it is the shining metal welds that splice these fragments into a complete picture. Stained glass solder is not only an adhesive that connects each piece of glass, but also a tool
What is a dipole antenna? A dipole antenna is a basic antenna used to broadcast radio frequencies. A dipole antenna is named after the two conductors of equal length that extend from either side of the antenna. A dipole is an omnidirectional antenna, which means that it broadcasts frequencies in all directions at the same
Patch antenna is a commonly used antenna for wireless communication and is widely used in many small electronic devices. It has the advantages of miniaturisation, easy fabrication, easy integration and higher operating frequency band. The principle of patch antenna is based on electromagnetic induction and electromagnetic radiation. It is made of a metal sheet, which
PCB shield cover is a component used to protect the internal components of electronic equipment from electromagnetic interference, generally used in places where it is necessary to prevent the leakage of radiation signals or to avoid the impact of external electric fields, such as communications equipment and computer motherboards commonly used on the PCB board
A pcb board clamp is a fixture used to hold and clamp circuit boards. It plays a very important role in the assembly and manufacture of circuit boards. There are many types of pcb board clamps and different types of clamps are used for different boards. According to the shape and size of the circuit
In modern electronic design, connectors play an irreplaceable role as bridges between modules. In particular, 4 pin connectors are widely used in consumer electronics, industrial control, automotive electronics, smart home and other fields due to their simple structure, diverse functions and flexible applications. This article will systematically analyze the basic knowledge, structural characteristics, application scenarios,
PCB High Frequency Board (RF Microwave PCB) is a special type of circuit boards used to process signals at higher electromagnetic frequencies. This type of board is commonly used in high frequency (frequencies greater than 300MHz or wavelengths less than 1 metre) and microwave (frequencies greater than 3GHz or wavelengths less than 0.1 metre) applications,
The computer pcb is an important electronic component that is widely used in various electronic devices such as computers, mobile phones, TVs and so on. It is the core component of these devices, responsible for connecting and coordinating the work of various electronic components. The circuits on the motherboard are precisely designed and laid out
In modern electronic design, fault protection mechanisms such as overcurrent, overtemperature, and short circuit are indispensable. Traditionally, people usually use fuses, PTC thermistors, or electronic circuit breakers to protect power supplies and loads. However, for precision electronic equipment, especially consumer electronics, communication equipment, industrial control modules, and even electric vehicle main control boards, traditional protection
A peelable solder mask PCB is a printed circuit board with a peelable solder mask (temporary solder resist) that protects certain areas during surface preparation or assembly. That is, sometimes a printed circuit board needs to have selected areas of the board protected from solder flow onto contacts, terminals and plated through holes (PTH) during
A breakout board, called both an adapter board and a breakout board, is a board-like device used to connect, convert, or extend the functionality of electronic equipment. It can establish a connection between different devices or components to achieve signal transmission, conversion or processing. Adapter boards are widely used in a variety of electronic equipment,
Exposed copper on pcb refers to the surface of the circuit board part of the copper foil is processed to remove the exposed place called exposed copper, also known as exposed copper over the holes, exposed copper heat dissipation, and so on. The PCB exposed copper is often used to strengthen the circuit board structure,
Alkaline etching solution for circuit boards, also known as passivation solution, is one of the widely used chemical etching solutions in the electronics industry for removing unwanted copper materials from circuit boards, and then generating a protective layer on the surface to protect the circuits on the boards from corrosion. The principle of action of
PCB board copper thicknesses are generally classified as 1oz (35μm), 2oz (70μm) and 3oz (105μm). Of course, the copper thickness depends on the type of board you are making. Copper thickness for switching power supplies with high currents is 2oz. for signal transmission, usually, 1oz is sufficient. Normal double-sided boards are 1oz. Multilayer circuit boards
What is semiconductor packaging? Semiconductor Packaging is the process of processing a tested wafer into an individual chip according to the product model and functional requirements. The purpose of traditional packaging is to fix, lead and seal the cut chip, but with the advent of the post-Moore’s Law era, more and more steps that need
In modern electronic devices, power management boards are key to maintaining stable operation. As the functions of devices become more and more abundant, a single power input must support multiple output modules, which puts higher requirements on the flexibility and reliability of the distribution structure. In this context, the PCB splitter, a distribution structure based
HDI PCB definition, High Density Interconnect Board, is a circuit board with high line distribution density using micro-blind/buried hole technology. It is able to achieve higher line density and finer wiring in limited space to meet the demand for miniaturisation, high performance and high reliability of modern electronic products. In the field of pcb board,
On a circuit board, RT usually stands for Thermistor, a component that is extremely sensitive to temperature. The resistance value of a thermistor changes significantly with temperature, so by measuring its resistance value, we can accurately deduce the current ambient temperature. This characteristic makes thermistors play a vital role in circuit functions such as temperature
With the development of cutting-edge technologies such as 5G, artificial intelligence, and the Internet of Things, electronic products have put forward higher requirements for high-frequency, high-speed, low-loss, and low-dielectric circuit materials. In this context, traditional materials such as epoxy resins, ceramics, and polyimides are facing performance bottlenecks, and glass PCBs, as an emerging high-performance material,
