Composition of PCB manufacturing production cost: The production cost of PCB products refers to the total of direct materials, direct labor, direct labor and other direct or indirect costs actually consumed in the production process
PCB hard board and FPC soft board difference: 1. Rigid PCB: often used as motherboard, cannot bend, 2. Flexible board: FPC also known as flexible circuit board, can be bent
PCB layout skills: 1, arrange the position of each functional circuit unit according to the circuit flow, so that the layout is convenient for signal flow, and make the signal as far as possible to maintain the same direction, 2, the core components of ea
The reasons for the appearance of virtual welding in PCBA processing are as follows: 1. Oxidation of pad and component pins; 2. Less tin; 3. The temperature is too high or too low, 4 welding paste melting point is low, 5, solder paste quality problems
When designing and wiring PCB, it is required to do as much as possible:1. If the wiring space permits, insert a ground wire or ground plane between the two lines with serious crosstalk, which can isolate and reduce crosstalk. 2. When electromagnetic fiel
The performance of PCB board is determined by the material used (high Q value), wiring design and several layers of board. The quality of PCB board has nothing to do with PCB color
PCBA processing on the workshop environment specific requirements: one, temperature, humidity requirements, two, ventilation capacity, three, power requirements, four, electrostatic protection requirements
Common mistakes in PCB design process are summarized as follows: 1. Pad overlap; 2. Non-standard use of graphic layer; 3. Characters unreasonable, 4. Single side pad set aperture, 5. Use filler block to draw pad, 6. The electric stratum is designed with b
PCBA batch processing success of the four secrets: one, planning in advance, two, looking for suppliers, three, evaluation of capacity and capacity, four, trust your suppliers
There are five common principles in PCB design: component arrangement rules, according to the signal direction layout principle, electromagnetic interference prevention principle, thermal interference suppression principle, adjustable component layout pri
PCBA processing requirements for PCB board; 1, PCB size,2, PCB board side width,3, PCB bending,4, PCB board Mark point,5, PCB welding pad
The process process of PCBA can be roughly divided into four main links: SMT patch processing →DIP plug-in processing →PCBA testing → finished product assembly
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