PCBA
  • Latest product air fryer PCBA
    January 19, 2022 Latest product air fryer PCBA
    With the publicity of the Internet, the hazards of fried food have penetrated into human resources, such as trans fatty acids, leavening agents and pigments, cardiovascular disease, diabetes, fatty liver, inhibition of infant growth and development, carcinogens, etc. seriously affect human health. Then there is a product called an air fryer, which uses high-speed air circulation technology to make 80% more delicious French fries than traditional electric fryers! The unique combination of circulating hot air and oven components allows you to fry a variety of delicious foods, snacks, seafood and more quickly and easily. Because frying only uses air, it produces less odor and steam than traditional frying, and is easy to clean for everyday use, safe and economical! What are the benefits of this product? 1. Less oil The air fryer uses the principle of high-speed circulation of air to turn the air into "oil", quickly heats the crispy food, and makes delicious food similar to frying. Foods like meat, seafood, and marinated fries make great tasting, delicious meals without the need for oil. If the food itself does not contain oil, such as fresh vegetables and French fries, add a tablespoon of oil for a traditional frying flavor. 2. The air fryer is easy to clean. Allow the air fryer to cool down before cleaning it. Removable drawer food basket and fryer with non-stick coating. Do not use metal cookware or cleaning tools to avoid damaging the air fryer's non-stick coating. 3. The air fryer does not need oil to fry food like traditional fried food, the oil of the food itself will fall into the fryer, which can reduce the oil by up to 80%. The less you eat, the healthier your body will be. 4. The air fryer has a thermostat of up to 200 degrees. It is necessary to set the time to avoid the situation that traditional frying can cause the food to scorch or even catch fire due to the high temperature of the oil. 5. The air fryer does not need to wait for a long time when cooking food, and different time can be set according to different food. You don't have to watch it all the time, it will automatically remind you at a certain time.
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  • How to reduce high-speed PCB crosstalk?
    November 27, 2021 How to reduce high-speed PCB crosstalk?
    The influence of crosstalk in PCBs has always existed, especially in some high-speed and high-density PCBs. So how should we reduce crosstalk? The most basic thing is to make the coupling between the interfering network and the interfered network smaller, so it is almost impossible to completely avoid it in the design. When designing, we can only consider that it will not affect its performance, and choose the appropriate method to minimize it. Mainly consider from the following aspects: 1. Maximize the distance between transmission lines when wiring; or reduce the parallel length between adjacent transmission lines as much as possible, and try to run between different layers. 2. Because the wiring directions of two adjacent signal layers are vertical, try to avoid parallel wiring and reduce crosstalk between layers. 3. Under the condition of ensuring signal timing, try to choose devices with low conversion speed as much as possible to slow down the rate of change of electric and magnetic fields, thereby reducing crosstalk. 4. Since the surface layer has only one reference plane, the electric field coupling of the surface layer wiring is stronger than that of the middle layer, so the signal lines sensitive to crosstalk should be distributed in the inner layer as much as possible.
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  • Importance of PCB in technology development
    November 19, 2021 Importance of PCB in technology development
    PCB is an indispensable pillar in electronic products. Nowadays, electronic equipment requires high performance, high speed, and thinness. As an indispensable part of electronic products, it is also the most critical technology for high-end electronic equipment. Including rigidity, flexibility, rigidity and flexibility, as well as multi-layer boards and module substrates for integrated circuit packaging substrates, they have made great contributions to high-end electronic equipment. Printed circuit boards play an important role in the electronics industry. The importance of PCB cannot be underestimated. Looking around the room you are in, you may find many printed circuit boards. When you walk in a crowd, everyone has an electronic device with multiple circuit boards. Such as smart phones and smart watches. These products have improved society and life. At the same time, when developing new electronic products and putting them on the market, the design needs to be built on the PCB. The circuit board and its components form the backbone of the electronic system. The printed circuit board is also very powerful and requires careful design to ensure functional safety. The specific design of products with embedded computing functions or wireless functions requires unique design practices to ensure the correct transmission of data and signals on the entire printed circuit board. Today, many consumer products need to meet these requirements. Consumer devices are packing more digital and analog components into smaller packages with multiple functions. The need to achieve these is inseparable from our PCB.
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  • How to adjust AOI equipment?
    November 04, 2021 How to adjust AOI equipment?
    The PCB AOI equipment can be "adjusted" according to the needs of the assembled circuit board. For example, replacement parts may be marked as defective because their markings and shapes do not meet the standard. However, AOI equipment can be adjusted and programmed to accept specific replacement parts, which will not be marked on the following printed circuit boards. This is the procedure is manually adjusted, what is acceptable and what is unacceptable. The unacceptable part of the test will be fed back to our operators. AOI equipment can also adjust some unacceptable problems into the program, and capture defects that were previously difficult to find through visual inspection. Manual inspection requires technicians to check every part, mark and solder joint on the circuit board, which may involve thousands of details of a complex circuit board. With so many details to check, it is easy to understand why imperfections are missed. AOI equipment can quickly check the qualified and unqualified positions after adjusting the programming.
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  • Why use automatic optical inspection assembly
    October 22, 2021 Why use automatic optical inspection assembly
    Automatic optical inspection equipment is already a must in every electronic factory, and it is constantly being enhanced and updated to improve its capabilities. This inspection equipment is used in many industries, including printed circuit board manufacturing, bare board inspection, solder paste printing, and assembly. For PCB assembly, the AOI system will check the placement and soldering of the components, and feedback potential problems in the test to our operators. From wrong parts to bad welded connections. The automatic optical inspection (AOI) system will check your PCBA. The system can quickly evaluate thousands of details that cannot be captured by the naked eye, and feedback any detected problems to the operator. AOI PCB inspection equipment relies on high-resolution camera systems and different lighting sources, such as fluorescent, LED, ultraviolet, and infrared, to capture a series of images. These images are processed by the system, which is programmed to inspect different details of the assembled board. The AOI system will scan each assembly board and compare these images with the images of the standard board stored in the file. When it finds inconsistencies with the standard board, it will mark these areas as possible defects so that technicians can inspect them in more detail. This will better ensure product quality.
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  • What is the PCB metal edging?
    August 12, 2021 What is the PCB metal edging?
    There are 2 types of printed circuit boards for PCB circuit boards, one with non-metallic edges and the other with metalized edges. In the past, there was not much demand for PCBs with metal edges, and now there are more customer demands. Higher-quality printed circuit board metal edges have attracted more attention because it enhances the functionality of several products that use these printed circuit boards. With the miniaturization and high-speed operation of circuits, the timing and signal integrity of digital signals have become prominent issues. In addition, due to the integrity of the power supply, the medium and high speed digital signals in the system will cause electromagnetic interference and electromagnetic compatibility problems. High-speed digital signals will not only cause serious interference inside the system, but also radiate to the outside of the system, causing the equipment to exceed the safety limit standards. The side-board radiation of a multilayer PCB is a relatively common source of electromagnetic radiation. The current-carrying power layer and ground layer will generate electromagnetic radiation at its edges. Due to insufficient power supply bypass, most of the noise comes from stray currents in the power and ground planes. At high frequencies, vias act as stubs and may have high inductance. This kind of through hole can radiate the magnetic field between the layers of the circuit board, and finally gather at the edge. The PCB board metallization edge process uses metal to surround the entire board edge. This will short-circuit the high-frequency signals reaching the edge of the circuit board and prevent them from radiating. Although this improves the performance of the circuit board, the edge metallization process increases the cost of the printed circuit board.
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  • What is different between FPC(Flexible printed circuit board) and FFC(Flexible Flat Cable)?
    July 24, 2021 What is different between FPC(Flexible printed circuit board) and FFC(Flexible Flat Cable)?
    1. Different materials: FFC is composed of PET insulation material and extremely thin tinned flat copper wire. FPC is composed of copper foil, acrylic & epoxy resin thermosetting  adhesive and Polyimide film. 2. Different manufacturing methods: FPC processes the flexible copper clad foil by chemical etching to obtain flexible circuit boards with different shapes of single-sided or double-sided and multi-layer structures.FFC is a flat copper foil sandwiched between the upper and lower insulating foil films, which are pressed together through the production line of high-tech automated equipment. The finished product is simpler and thicker. 3. Different applications: FPC can carry out impedance control, anti-static interference, designed to have bending and angle, commonly used in FPC antennas, FPC touch screens, FPC capacitive screens, notebooks, SLR cameras, smart phones, wearable devices, automotive electronics, medical equipment, industrial control equipment, Military equipment, sensors, antennas and other modern electronic products. FFC is easy to solve electromagnetic shielding (EMI). It is often used in the connection between the print head of the printer and the motherboard, plotters, scanners, copiers, audio, LCD appliances, fax machines, various DVD players, etc., PCB board to PCB board It is used as data transmission cable in miniaturized electrical equipment.
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  • The meaning of PCB board for graphics card
    July 12, 2021 The meaning of PCB board for graphics card
    The graphics board refers to the PCB circuit board on the graphics card. It can also be called the graphics card motherboard, because the graphics card is composed of a heat sink + GPU + video memory + circuit board + other components. The components of the graphics card are all placed on the PCB board. Good or bad, directly determines the quality and stability of the electrical performance of the graphics card. The PCB board is the basis of the graphics card. The more PCB layers, the more complex the design, the more precise the workmanship, and the better the overclocking and stability. The PCB board not only supports the components of the entire graphics card, but also plays a vital role in the stability of the graphics card. It is the soul of the quality of the graphics card. At present, motherboards and graphics cards mostly use multi-layer boards, which greatly increases the area that can be wired. However, based on cost considerations, six-layer or four-layer board designs are generally used, and only a small number of high-end graphics cards use eight-layer board designs. With the gradual maturity of the current PCB industry, the GPU industry is bound to usher in new developments.
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