The circuit connection of the multi-layer board is through the buried hole and blind hole technology. Most motherboards and display cards use 4-layer PCB boards, and some use 6, 8-layer or even 10-layer PCB boards. To see how many layers there are on the PCB, it can be identified by observing the via holes, because [...]
FPC is a kind of printed circuit board, which is called flexible circuit board, and we call it FPC soft board. FPC generally uses PI as the base material, which can be bent and flexed arbitrarily. PCB is a so-called rigid circuit board, which is usually called a hard board. PCB generally uses FR4 as [...]
The names of the circuit boards are: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra Thin circuit boards, printed (copper etching technology) circuit boards, etc. The circuit board makes the circuit miniaturized [...]
How to set the speed and temperature of reflow soldering just right The main factors that determine the quality of reflow soldering products are the settings of reflow soldering temperature and reflow soldering speed in the reflow soldering process. These two key process points are set... How can I disassemble the IC block During circuit [...]
1. Principle of 20H If the printed circuit board has the ideal voltage and frequency, it will transmit electromagnetic into space; In order to reduce the probability of this situation, it is necessary to make the physical size of the signal line printed board of one floor and the physical size of the surrounding connection [...]
Automatic soldering machine for PCB circuit board Automatic solder robot is a solder welding equipment, so in addition to the manipulator movement function, its main or to complete the solder job. So the core part of the soldering robot is the welding system. The solder system mainly consists of automatic tin feeding mechanism, temperature control, [...]
PCB is an important electronic component, the support body of electronic components, and the carrier of electrical connection of electronic components. What are the requirements for PCB component layout? Let's introduce it to you. 1, the signal Signal interference is the most important factor to consider in PCB layout design. The most basic aspects are: [...]
Detailed knowledge of double sided circuit board welding. Compared with the single panel, the double-sided circuit board has higher wiring density and smaller aperture. The metallized holes on which interlayer interconnection depends are directly related to the reliability of printed circuit boards. With the narrowing of the aperture, some sundries, such as grinding debris, volcanic [...]
Limited and shrinking circuit board space, tight design cycles, and strict electromagnetic interference (EMI) specifications, such as CISPR 32 and CISPR 25, make it difficult to obtain a power source with high efficiency and good thermal performance. Throughout the design cycle, the power design is usually at the end of the design process, and the [...]
The new crown pneumonia epidemic has shrunk Thailand's printed circuit board exports by more than 21% in 2020, but will return to the growth trajectory with the 5G wave and changes in consumer behavior next year. In 2020, the global printed circuit board (PBC) business will be affected by the global pandemic of New Coronary [...]