It is a welding method that the welding end face of the components and the PCB welding pad are coated with paste solder and assembled together, heated until the solder is melted, and then the welding area is cooled.
PCB transmission mechanism and bearing organization, drive and servo positioning system, mounting head, feeder, optical identification system, sensor and computer control system, through some functions such as suction - displacement - positioning - placem
Finally, when carrying out the PCB component layout of the LED switching power supply, it is recommended that engineers arrange the position of each functional circuit unit according to the circuit process, such a layout can make the signal flow more effe
Physical changes in the fibre-forming layers of stained glass, such as separation between layers.However, this situation is not a poor solder joint, but the substrate is too hot, reduce the preheating and solder temperature or increase the substrate trave
the device on the same printed circuit board should be arranged as far as possible according to the size of its heat and the degree of heat dissipation, small heat or poor heat resistance devices (such as small signal transistors, small-scale integrated c
high reliability PCB will strictly define the shape, hole and other mechanical characteristics of the tolerance, very good to improve the size of the product quality - improve the fit, shape and function. thin solder resistance layer can lead to adhesion,
Reminder: Try to provide a special wiring layer for key signals such as clock signals, high-frequency signals, and sensitive signals, and ensure its minimum loop area. The signal quality is guaranteed by means of shielding and increasing safety distance.
Stamp hole is the motherboard plate inside, the small board and the small board need to be connected between the tendon, in order to facilitate cutting, the tendon will be opened up some holes, similar to the stamp edge of the kind of hole.
There are several categories of transmission line technology, the earliest transmission line is the coaxial transmission line invented by Oliver Heaviside to solve the long-distance transmission problem of the telegraph at that time, and the common forms
High-end equipment can be attached to precision shaped parts, BGA, QFN, 0201 materials. Also can be template patch, loose material hand. Sample and size batch can be produced, proofing from 800 yuan, batch 0.008 yuan/point, no start-up fee
The time required for each lamination cycle depends on the number of board layers in the stack and the materials used. Each individual layer adds an average of 4-5 days to the production process, including drilling, filling and plating time. And board man
Aluminum is a very attractive material with abundant resources, low cost, excellent thermal conductivity and strength. In addition, it is very environmentally friendly and can be used on most metal substrates or metal cores. Due to the advantages of econo
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