Light-emitting diodes and their basic circuits(1) Basic knowledge of semiconductors1. A semiconductor is a substance whose conductivity is between that of a conductor and an insulator. Its conductivity is related to temperature,light or doping concentrati
Electronic components procurement knowledge and processGenerally speaking, supplier development includes: analysis of supply market competition, finding qualified suppliers, evaluation of potential suppliers, inquiry and quotation, negotiation of contract
High Density Circuit Board Technology and ApplicationHigh-density circuit board technology and application High-density circuit board technology is a key technology in the field of modern circuit board design and manufacturing. It enables the circuit boar
PCB board device package design specificationFirst, the purpose: This specification stipulates the requirements and precautions in the packaging design of the company's product PCB board components, ensuring that the companyThe uniformity of all PCB boar
The production line is equipped with SMT processing equipment of other brands to guarantee the fast production and delivery time. Currently, we can provide 5-500 sets of circuit board proofing urgent service. The factory has passed ISO9001-2008 quality ma
Don't reject a high offer as soon as you see it. You may miss out on a great circuit board proofing company. Those who dare to ask for a high price are competent, otherwise they would not open such a high price, it is not to push customers out of the door
Although the employee style is only a part of the reference, it can also explain certain problems. For example, in a patch processing factory, see the employees are negative, sad face, such manufacturers produced products quality rate is certainly not hig
Impedance PCB stack design and characteristic impedance calculationImpedance PCB stack design is one of the necessary skills for hardware engineers and PCB engineers. Layout engineers will carry out layout design based on the stack design, including setti
The experiment shows that the detection circuit can measure and record the path relationship between the pins of each component on PCB efficiently, accurately and completely with the support of the measurement and navigation software (described in another
In the design of PCB board, PCB anti-ESD design can be realized by layering, proper layout and wiring and installation. During the design process, most design modifications can be limited to adding or subtracting components through prediction.
PCB board conductive circuit pattern is not balanced or PCB board two sides of the circuit is obviously asymmetrical, one side has a large area of copper skin, the formation of greater stress, the PCB board warping, in the process of PCB processing temper
On pre-tinned PCB, the porosity of BGA joint increases with the increase of solvent volatility, metal composition and melting temperature, and also with the decrease of powder size.
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