In the drilling process of PCB board, the hole size is not allowed, and how to deal with the distortion. Improper feeding speed or rotating speed; Excessive wear of the drill bit; Too many times of regrinding of drill tip or the length of chip removal groove is lower than the standard; Excessive deflection of [...]
PCB is just like the skeleton and nervous system of electronic circuit, which plays an important role in the electronic engineering project. When I was in college, I was particularly interested in circuit board design and hardware circuit design, and I studied them carefully. I thought it would be great to get a job sitting [...]
Two, two business models shine: large - volume board market win in the scale, small - volume board gross margin win (I) according to different requirements of downstream customers, PCB is divided into template and batch board According to the different requirements of downstream customers, PCB is divided into template and batch board. According to [...]
I. definition of inductance Inductance: a physical quantity used to measure the electromagnetic induction capacity of a coil. When a current is fed into a coil, a magnetic field is generated around the coil, and the coil has a magnetic flux passing through it. The greater the power supply through the coil, the stronger the [...]
Integrated circuit in all kinds of circuits are used, integrated circuit pin density, not easy to disassemble welding, as a general maintenance master or electronic technology practitioners, how to welding integrated circuit, and we talk about the following. Method/procedure 1. Dual in-line integrated circuit, two soldering irons can be used, and tin can be added [...]
The advantage of the innocuous treatment technology of the circuit board recycling equipment is that the epoxy resin is recovered, which not only avoids the pollution caused by the burning of organic matter, but also comprehensively recovers the epoxy resin. Circuit boards are the basic materials of electronic appliances, and China has become a major [...]
Circuit board manufacturing belongs to modern electronic industry. Circuit board also known as: PCB board, aluminum substrate, high frequency board, PCB board, PCB, circuit board, printed circuit board, kunshan circuit board, kunshan circuit board, flexible board, flexible board and so on. Circuit board also known as: PCB board, aluminum substrate, high frequency board, PCB board, [...]
5G is about to be commercialized. In some cities, the three major operators have started to lay out 5G on a large scale. In 12 pilot cities like Beijing and zhengzhou, 5G can be fully covered in urban areas as soon as the second half of this year. To achieve 5G technology, the use of [...]
In the world of modern electronic products, PCB(printed circuit board) is an important part of electronic products, it is hard to imagine that there is no use of PCB in an electronic equipment, so how the quality of PCB will have a very big impact on the long-term normal and reliable work of electronic products. [...]
At present, electronic devices used in various electronic devices and systems are still mainly assembled by printed circuit boards. Practice has proved that even if the circuit schematic design is correct and the printed circuit board design is improper, it will have a negative impact on the reliability of electronic equipment. For example, if two [...]