博文

目前显示的是 十月, 2022的博文

What is LED PCB?

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      LED is short for Light Emitting Diode. At present, SMD packaging is the most widely used packaging form in LED applications. Generally, the light emitted by a single LED assembly is limited. So a light fixture will use multiple LED components to get enough light. Like other semiconductor devices, PCB are the best way to electrically connect LED components. PCB with LED components are often referred to as "LED PCB".       Metal core PCB are widely used in LED applications because of their strong heat dissipation capabilities, especially aluminum is often  used for   PCB production of LED lights.   Typically, aluminum PCB contain a thin layer of thermally conductive dielectric material that can transfer and dissipate heat much more efficiently than traditional rigid PCB.     Advantages of LED 1.  Lower power consumption: Replacing incandescent lamps with LED lamps can reduce power consumption by more than 80%.     2. L onger  L ife : LED generally have a long service life

What are the FPC Stiffener Materials

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      Why should FPC be stiffened? Because the FPC itself is only flexible, and the application scenarios of individual FPC are different, in order to meet the use requirements, it is necessary to increase a certain thickness and rigidity in the designated position. The main purpose is to improve the strength of the FPC plug-in part; or to solve the local flexibility of the FPC, to facilitate the overall assembly of the product. Generally, the materials used for FPC stiffener need to meet the requirements of high and low temperature resistance, acid and alkali resistance, corrosion resistance, etc. So what are the FPC stiffener materials?       1.  PI As a special engineering material, PI has been widely used in aviation, aerospace, microelectronics, nano, liquid crystal, separation membrane, laser and other fields. It is resistant to high and low temperatures and flame retardant. PI protective film or PI stiffener film is mainly used in FPC stiffener. PI protective film is generally u

What is the Difference between OSP and Immersion Gold

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What is the Difference between OSP and Immersion Gold OSP and immersion gold are two common technologies in PCB surface treatment, the purpose of which is to prevent copper surface oxidation and help soldering. So what's the difference between the two? 1. Different technology principles The OSP technology is an organic coating method...

What is the Role of the PCB Break Away Tab?

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      The PCB break away tab is not part of the PCB, and its existence will consume more boards, thereby increasing the cost of the board, so we need to remove it after the PCBA processing is completed. But even so, the PCB still needs to retain the existence of the break away tab during production, which shows its importance. So what is the role of the PCB break away tab?       During the  SMT placement   process, the PCB board is conveyed through the guide rails of the machine.   If the  break away tab   is not reserved, there will be a phenomenon that the component is too close to the edge of the PCB board when mounting, and when the component is beyond the scope of the PCB board, it will not be possible to mount and solder normally.   Therefore, the function of the  break away tab   is to expand the distance between the components and the equipment to assist the board routing and ensure the normal operation of the  SMT placement   process.     The flatness of the PCB break away tab

Why are There Open Circuit and Short Circuit Problems on the PCB?

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  PCB open circuit and short circuit problems are encountered almost every day by the manufacturers of PCBs, and such problems have been plaguing production and quality management personnel. This situation leads to insufficient goods and the need for replenishment, overdue delivery, customer complaints, etc., which is an intractable problem for the people for the industry.     Why are there open circuit and short circuit problems on the PCB? How can we improve if we encounter such situations?     The reasons for the above phenomena and the improvement methods are as follows:   1. The CCL(cooper clad board) must be inspected before being stored in the warehouse to check the surface of the board for scratches. If this happens, you should contact the supplier in a timely manner and  proceed as appropriate according to the actual situation.   2. The CCL(copper clad board) was scratched during the cutting process, mainly because of the presence of hard, sharp objects on the machine table. T

What is the Effect of Humid Environment on PCBA

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      There is a lot of moisture in the air, when the humidity is too high, it will turn into water droplets and fall on the PCB board and electronic components. So what kind of effect does this humid environment have on PCBA?       In the process of PCBA processing, it is necessary to ensure the humidity balance in the workshop, so that the humidity value is within a suitable range. If the humidity is too low, the air will be too dry, which not only easy to generate static electricity, but also to accumulate dust. If the humidity is too high, it is easy to cause the PCBA to be damp and oxidiz ed or to burst.     Before PCBA processing, if the electronic components are damp, the pins of the electronic components will be oxidized, or there will be undesirable phenomena such as tin rejection and fried tin during the welding process. And if the PCB board is exposed to a high humidity environment for a long time, it will cause the board surface to be damp, a nd it is easy to burst the boar

What is PCB Proofing?

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  What is   PCB proofing ? It has become a question for many people. In fact, it is not difficult to understand that PCB proofing refers to the trial production of the PCB before mass production. It is a method to verify whether the PCB circuit design is reasonable and the function is normal. At present, many organizations that provide PCB proofing services have a stable customer base and are also very popular in the market. The main reasons for this are: 1. Can help companies save costs:     The obvious advantage of PCB proofing is that it can help companies save costs, because through PCB trial production and professional testing, you can find out whether there is a problem with the circuit design in time, thus avoiding large-scale production without testing and saving the economic losses caused by non-performing rates.     2. Can help companies optimized PCB design:    How to etch the circuitry on the PCB and achieve higher efficiency is related to PCB circuit design. Through small-