PCB base board design principles
in the board frame, to determine the positive and negative, it is best to place all devices on the same side, which is marked with three XXX, as shown in the figure below.
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PCB single-sided circuit board and PCB double-sided circuit board drilling difference
Single-sided circuit board is the most basic PCB circuit board, the parts are concentrated on one side, the wire is concentrated on the other side, because the wire appears on one side of the reason we call it single-sided circuit board. Because single-si
PCB double-sided circuit board manufacturing process
The second method is to let the designer of the circuit board factory beside a piece of copper foil around the circuit board pad, the attachment area is large, the pad is not easy to fall off, if there is no space around the pad beside the copper foil
FPC A term related to flexible electronic circuit boards
The soft plate is also like the hard plate, and can be made of plated through holes or surface adhesive pads for through holes insertion or surface adhesive installation. The surface of the board can also be attached to a soft protective and solderproof C
Global FPC (flexible circuit board) industry market size analysis
When the circuit board is pressed together with the release film, the silicone oil will be transferred to the circuit board, resulting in poor binding degree, so the silicone oil on the surface of the product needs to be completely cleaned before a step p
PCB process design specification for printed circuit boards
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 board common bad cause analysis
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
PCBA processing lecture hall: the common heat dissipation method of circuit board
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
Soft and hard combined board
Smooth transition of the line, the direction of the line should be perpendicular to the bending direction 4.2 The wire should be evenly distributed throughout the bending zone 4.3 The width of the wire should be maximized throughout the bending zone. 4.4
How to determine the PCB printed circuit boards
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
PCB board through hole plug function and process introduction
Prevent the surface solder paste from flowing into the hole to cause virtual welding, affecting the mounting. 5. Prevent the tin bead from popping out during over-wave soldering, resulting in short circuit. The realization of the plugging technology of co
Optimization design skills of circuit board heat dissipation
Avoid the concentration of hot spots on the PCB, distribute the power evenly on the PCB board as much as possible, and maintain the uniform and consistent temperature performance of the PCB surface. It is often difficult to achieve strict uniform distribu
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