Hole metallization process of circuit board The hole metallization process is one of the most critical processes in the manufacture of printed circuit boards. For this reason, it is necessary to carefully check the copper surface of the substrate and the state of the inner surface of the hole. (1) Inspection project 1. Is the [...]
First, the PCB industry market size forecast PCB is a bridge that carries electronic components and connects circuits. As the "mother of electronic products", PCB is widely used in communications, consumer electronics, computers, automotive electronics, industrial control, medical equipment, defense and aerospace. Electronic components that are indispensable in information products. The PCB industry is a [...]
In 1950, the first panel appeared. The single-panel material was made of paper phenolic substrate. The simple understanding of the double panel is that there are wiring on both sides. This makes it better. The multi-panel refers to more than 2 layers. Price, please see below The history of single-sided boards: The single-sided printed circuit [...]
With the development of the times, electronic products are increasingly inseparable from our lives, from computers to mobile phones. However, electronic products always face a problem, that is, they are broken. This is inevitable for electronic products. After all, electronic products also have longevity. Speaking of this, do you have any electronic products removed? I [...]
Electrolytic capacitor symbol problem? How do you look at the positive and negative electrodes of this electrolytic capacitor? a ball on the board, divided into two, half black and half white answer: If there is no black, the white is usually the negative. Half black and half white, black is negative Capacitance symbol 2. Two [...]
The PCB (Printed Circuit Board) industry is the industry with the largest output value among the global electronic component industry. With the deepening of research and development and the continuous upgrading of technology, PCB products are gradually moving to high density, small aperture, large capacity, and thin and light. Direction development. In 2015 and 2016, [...]
PCB is one of the sub-sectors with absolute advantage in the 5G era Printed Circuit Board ("PCB"), the Chinese name is printed circuit board, also known as printed circuit board, printed circuit board, printed circuit board. The prototype of the PCB originated from the telephone switch system that used the concept of "Circuit" in the [...]
One of the capacitors: the role of the capacitor Capacitors, which are one of the passive components, function in the following ways: 1. It is applied to the power supply circuit to realize the functions of bypassing, decoupling, filtering and energy storage. The following classification details: 1) Bypass The bypass capacitor is an energy storage [...]
The first process: the operator loads the PCB into the turnover frame, and then loads the turnover frame into the upper plate case; the automatic upper plate machine feeds the PCB light plate to be printed with the solder paste into the printing machine through the track. The second process: the printing machine has installed [...]
Many small partners who have just touched the PCB industry often encounter the term aluminum substrate. So what is the difference between the aluminum substrate and the PCB board? Today, Xiaojie Ge will explain it to everyone: Generally, the aluminum substrates that we encounter are single-layer aluminum-based PCB boards, which are one kind of PCB [...]