Definition and Function of Solder Mask Material in PCB Design In the printed circuit board (PCB) manufacturing process, solder mask is a crucial protective coating. It’s typically green, hence the nickname “green board,” but PCBs can also come in red, blue, black, white, and other colors. The solder mask material not only impacts the board’s […]
Definition and Development Background of HDI Flexible Circuit Boards Driven by the trend toward increasingly thinner, smaller, and highly integrated electronic products, traditional rigid circuit boards are no longer able to meet the diverse product forms and complex circuit design requirements. In particular, in high-end sectors such as consumer electronics, medical devices, aerospace, and automotive
In the fields of mechanical processing, PCB design and product assembly, the design of holes is far more than just a round hole. Different types of hole structures have a direct impact on assembly accuracy, mechanical properties and even product appearance. Counterbore vs countersink are the two most common finishing hole types. Many technicians, purchasers,
What is Modular PCB Design? With the increasing complexity of electronic product functions, traditional single circuit board design has been unable to meet the needs of rapid iteration, flexible upgrades and efficient maintenance. In this context, the concept of “Modular PCB Design” came into being and gradually became an important trend in the electronics manufacturing
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
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
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,
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
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
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,
Process principles and differences between SAP and mSAP In traditional PCB manufacturing, the most commonly used method is the subtractive process, which is to remove unnecessary copper from the entire copper-clad board by etching to form the required circuit pattern. This method performs well when the line width is greater than 100μm, but when the
In just a few decades, electronic products have been developing towards miniaturization, multi-function and high performance. Chip packaging is a key link to achieve this goal. Among the many packaging technologies, CSP Package (Chip Scale Package) has attracted much attention because its size is close to that of a bare chip. CSP not only greatly
System in Package (SIP) is a packaging method that integrates multiple semiconductor chips and passive components vertically or horizontally in a single package module. Compared with traditional multi-chip packaging (MCM), SIP package emphasizes functional unitization and module integration, which can improve design flexibility and integration. SIP packaging has the following important technical features:Chip vertical/horizontal stacking:
In the continuous development of modern industrial manufacturing, materials science has played a key role. Among many high-performance materials, polytetrafluoroethylene (PTFE), more commonly known as Teflon, is undoubtedly the most representative one. Its unique chemical stability, extremely low friction coefficient and excellent high temperature resistance make it widely used in aerospace, electronics, chemical industry, medical
In modern electronic products, printed circuit boards (PCBs) are an indispensable core component. In order to ensure the performance and reliability of PCBs, the application of pcb solder resist is crucial. This article will explore various aspects of solder resist to help readers fully understand its importance in PCB manufacturing. What is PCB solder mask?
As electronic devices continue to develop towards miniaturization, lightness, and multi-function, the limitations of traditional rigid circuit boards and flexible circuit boards have gradually emerged, and they cannot fully meet the complex needs of modern precision electronics. Against this background, PCB Flex Rigid (Rigid-Flex PCB) came into being. It combines the stable structure of rigid
In the entire process of SMT, precise printing of solder paste is the first step to achieve high-quality welding. To achieve this goal, a widely used and crucial tool is the solder paste stencil. The main function of this stencil is to print solder paste on demand onto the pads of the printed circuit board
With the rapid development of science and technology, the impact of digital imaging technology in our lives is becoming more and more profound. From daily smartphones and tablets to high-precision industrial inspection equipment, medical imaging systems, and the drones, smart driving and wearable devices that have emerged in recent years, all kinds of products rely
In today’s digital age, USB hub circuit boards have become a key component for connecting multiple devices. With the continuous advancement of technology, users’ growing demand for data transmission speed, number of interfaces and device compatibility has promoted the rapid development of USB hub circuit boards. Basic concept of USB hub pcb board The main
When a circuit design has been tested many times and confirmed to be feasible, it is necessary to consider how to make the breadboard permanent to ensure the stability and durability of the circuit. Breadboards are an extremely common tool in electronic design and prototyping.It allows engineers and hobbyists to quickly build circuits without the
Perforated sheet, as an important industrial material, is widely used in many fields such as construction, electronics, machinery and so on. It is characterized by having evenly distributed holes on the surface, which can not only play the role of aesthetic decoration, but also have practical functions such as air permeability, sound insulation and filtration.
In the electronics manufacturing industry, fusible PCB, as a special type of printed circuit board, has gradually attracted market attention in recent years. As electronic products develop towards high integration, low power consumption, environmental protection and sustainability, fusible PCB is becoming a highlight in the industry due to its special process characteristics and application advantages.This
Circuit elements play a vital role in the development of electronic technology. They are the basic components of circuits, and the normal operation of various electronic devices is inseparable from them. From the simplest resistors and capacitors to complex integrated circuits, each circuit element plays a unique role in a specific application scenario. Classification of
In electronic circuit design, resistance matching is a basic but crucial concept. Whether it is a high-frequency communication system, a sensor network, or a power amplifier circuit, the rationality of resistance matching directly determines the efficiency of signal transmission, the stability of the system, and the utilization of energy.This article will start from the basic
