Analysis of bypass capacitance in high speed PCB
Only each module has good EMC and low EMI can ensure the realization of the whole system function.
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
PCB copy board process some small principles
PCB copy board process some small principles :1, printed wire width selection basis: 2, line spacing: 3, pad: 4, draw circuit frame: 5, component layout principle: 6, input signal processing unit, 7, component placement direction: 8, component spacing. 9.
Printed circuit boards and lead-free assembly requirements
Why is lead not allowed on printed boards, assembly processes and products? There are two reasons for this: first, lead is toxic and affects the environment; Second, leaded solder is not suitable for new assembly technology.
Why should the PCB board plug the hole?
In order to meet customer requirements, the circuit board must plug holes through the hole, after a lot of practice, change the traditional aluminum sheet plug process, with white mesh to complete the circuit board surface welding and plug holes.
PCB production to do the role of the board and board edge
General circuit board production will be carried out board work, its purpose is to increase the production efficiency of SMT production line.
SMT manufacturer PCB surface to find the reason of PCB coppered laminate
According to the activity of flux, it can be divided into active (RA), medium active (RMA), inactive (R), water washing (OA), no cleaning (NC)
Advantages of SMT surface assembly technology
SMT technology has only a history of more than 40 years. It has gone through the journey from birth, perfection to maturity with extraordinary speed, and entered the flourishing period of large-scale industrial application.
SMT patch processing quality precautions and solutions
In the SMT process, there are six mounting quality problems that need attention: 1, mount design quality, 2, mount raw materials (components, PCB, welding paste and other mount materials) quality, 3, mount process quality (process quality), 4, mount weldi
Discussion on the influence of scraper on PCBA processing
In the process of electronic machining, the smaller the Angle of the scraper affects the vertical force of the solder paste, the greater the vertical component of the force.
PCB various surface treatment advantages and disadvantages comparison
Here are several circuit board surface treatment is currently more common process, I can only say that there is no the most perfect surface treatment, so there are so many choices, each of the surface treatment has its own advantages and disadvantages, th
Analysis of the causes of pcb board anomalies such as white spots, microcracks, bubbles and delamination in PCB manufacturing process
Image of local separation caused by local expansion between layers of substrate or between substrate and conductive foil or between substrate and protective coating.
What are the most important qualifications and technical strengths of PCBA manufacturers?
ISO9001 certification, CCC certification is the basic certification of PCBA manufacturers, can obtain ISO13485, IATF16949, UL certification of PCBA manufacturers are more comprehensive strength of the enterprise.
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