Each company has some differences in the design of materials. Generally, the definition of materials focuses on the setting of the glass transition point. But for the long-term temperature resistance, it is only necessary to meet the standard, so the quality requirements in this regard are all Different. For long-term temperature resistance, most FR-4 materials [...]
One of the goals of photovoltaic technology development is to continuously improve the efficiency of solar cells and reduce costs. Among them, one of the requirements of the front metalization process of solar cells is the quality of fine line printing, that is, reducing the width of the grid line from 30μm to 25μm, 20μm, [...]
The purpose of the detection of the printed circuit board: to detect whether there is a PCB on the conveyor belt. Application: Because the reflectivity of the PCB board is very different, it is very unreliable to detect with a direct-reflection sensor. The VS1 focusing sensor has high gain and can reliably detect each circuit [...]
Hexagon socket bolts are also called cylindrical head hexagon socket bolts and hexagon socket screws. Commonly used levels are 4.8, 8.8, 10.9, and 12.9. Hexagon socket bolts are generally selected for grade 8.8, 10.9 and 12.9 when used on aluminum profiles, and the material is mostly carbon steel. However, in order to meet market demand, [...]
The small class mentioned the content of PCB in the previous sharing, so what is the connection between switching power supply PCB wiring and ripple? Let's share the relationship between the PCB wiring and ripple of the switching power supply, and the reasons for the ripple of the switching power supply. Damaged power plug 1. [...]
When entering a pcb factory, the most common ones are red PCB, green PCB or blue PCB. A small amount of black PCB. Among them, the usage rate of the first three colors is the highest. The boards between different colors have What's the difference? PCB, as a printed circuit board, mainly provides interconnection between [...]
FPC flexible circuit boards are widely used in smart phones due to their high wiring density, light weight, thin thickness, and good flexibility. The FPC flexible circuit boards in smart phones are mainly used for the connection of parts and the motherboard, like Display modules, fingerprint modules, camera modules, antennas, vibrators, etc., with the continuous [...]
If the circuit board needs to be printed on both sides (side1, side2 or side A, side B) SMT, which side should be printed first? How is the first side to be played? What is the decision point? Editor: This problem is a bit more complicated. Generally speaking, at the beginning of the product design, [...]
Silicone oil type release film is very common in the production process of circuit boards and electronic and precision electronic components. The surface of the film is coated with a layer of silicone oil type release agent to reduce adhesion and achieve the release effect . It can be divided into single-sided release film and [...]
What should I do if I encounter a short circuit on the PCB circuit board? Today, the smt processing plant will explain to you some common problems in detail. 1. If it is manual soldering, develop a good habit. First, check the PCB board visually before soldering, and use a multimeter to check whether the [...]