Semi-curable sheet is a major category of products sold as commodities in the PCB FR-4 copper clad plate industry. When making multilayer printed boards, PCB factories use it to bond the prepared inner boards. Previously, the production of multilayer printed circuit boards required at least two semi-cured sheets for each layer, so that the resin […]
The copper plating quality of printed circuit board is closely related to the application reliability of printed circuit board. With the development of printed boards to high density and high precision, the requirements for copper plating are also higher and higher. It is not only required that the coating is uniform and fine, but also […]
Selection of SMT steel mesh manufacturing process and materials What is the SMT mounting price? What is the manufacturer's calculation based on? Is a pad a point? How much is a point? Today, Hengtian Weiye Technology will give you a comprehensive introduction to the SMT price calculation method! SMT mounting is to mount electronic components […]
Application of solder paste in SMT – Learn what solder paste is and how to use it to solder SMD electronic components onto PCB. Here, we will learn about solder paste and its application in SMT. What is solder paste and how to use it? catalog: 1. What is solder paste? 2. Lead free solder […]
Resin hole plugging is the use of conductive or non-conductive resin, through printing, using all possible ways, in the mechanical through-hole, mechanical blind buried holes, and other types of holes to fill, to achieve the purpose of plugging holes. Selection of resin plug hole aperture size is generally 0.1-0.8mm; plate thickness ranges from 0.4-8.0mm; plug […]
1. Bare Copper Advantages: low cost, flat surface, good solderability (without being oxidized). Disadvantages: easily affected by acid and humidity, can not be stored for a long time, need to be used up within 2 hours after unpacking, because copper is easily oxidized when exposed to air; can not be used for double-sided boards, because […]
1. COB, Chip On Board, refers to fixing the IC die on the printed wiring board by bonding. 2. COF, Chip On FPC, refers to fixing the chip on TCP. 3. COG, Chip On Glass, refers to fixing the chip on glass. 4. FTN, Formulated STN, a layer of optical range compensation chip added to […]
Microwave PCB belongs to high-frequency PCB, also known as RF PCB. Mainly used in fields such as wireless communication, wireless networks, and satellite communication. With the development of technology, the demand for microwave PCB design continues to grow, and microwave PCBs are gradually entering other fields, becoming the main products in multiple fields such as […]
The Development History of the PCB Board Before the emergence of printed circuit boards, the interconnection between electronic components relied on the direct connection of wires to form a complete circuit. In contemporary times, circuit boards only exist as effective experimental tools, while printed circuit boards have become a dominant position in the electronics industry. […]
The Production Process of Rigid PCB The production process of PCBs with different difficulty levels and layers may vary slightly, but can be summarized as the following steps: 1. Cutting: Cut out easy to process dimensions from a large sheet of copper clad plate with a certain thickness and copper foil thickness. 2. Drilling: Drill […]
In high-speed circuit design, the inductance and capacitance on the circuit board circuit make the wires equivalent to a transmission line. The incorrect layout of termination components or incorrect wiring of high-speed signals can cause transmission line effects, resulting in incorrect data output, abnormal circuit operation, or even complete failure of the system. Based on […]
LED, Light Emitting Diode, is a semiconductor component. Initially, it was commonly used as an indicator light, display LED board, etc. With the emergence of white LED, it is also used for lighting. LED, known as the fourth generation lighting source or green light source, has the characteristics of energy conservation, environmental protection, long lifespan, […]