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USB wireless card patch processing is a key process to accurately place tiny electronic components on the circuit board to achieve stable signal transmission, and the process is fine and rigorous.
The first is solder paste printing. On the circuit board solder pad that has been cleaned and dried in the early stage, the automatic solder paste printing machine uses steel mesh to accurately control the amount and position of solder paste to ensure uniform printing and consistent thickness, laying the foundation for subsequent component welding.
Then is the component mounting, with the help of high-speed and high-precision Surface Mount Technology mounter, in accordance with the pre-set program, the resistance, capacitor, chip and other types of micro electronic components, from the tray accurately grabbed and affixed to the printed solder paste circuit board corresponding position, each step of the operation is carried out with micron level accuracy, to ensure the accuracy of the mounting.
Then it enters the reflow welding process, and the circuit board with the installed components is sent to the reflow welding furnace. Under the control of the precise temperature curve, the solder paste is melted by heat and cooled and solidified, so that the components and the circuit board solder pad form a solid electrical connection. This process requires extremely high temperature and time control, which directly affects the welding quality.
After the welding is completed, strict AOI automatic optical inspection is carried out, the use of optical imaging technology to scan the circuit board in an all-round way, compared with the preset standards, quickly and accurately identify the component offset, missing parts, short circuit and other defects, and pick out unqualified products for rework.
After testing qualified USB wireless card circuit board, it will be cleaned, remove the residual flux, dust and other impurities in the production process, and then carry out functional testing to verify whether its wireless signal reception and transmission performance is up to standard. Only the products that pass all the testing can enter the final packaging process, and properly package them with anti-static packaging materials. To ensure that the product is not damaged in subsequent transportation and storage, the entire USB wireless card patch processing process is completed.

Company Profile

Founded in 1999, Dongguan Changlong Electronic Industry Co., Ltd. is one of the few professional processing plants in the industry with more than 20 years of Surface Mount Technology production and manufacturing experience. With the continuous development of the company and the continuous accumulation of corporate culture and production experience, the production equipment has been upgraded from semi-automatic to fully automated. It has six Japanese Fuji NXT multi-module dual-track fully automatic patch production lines with more than 40 modules, and more than 3,000 square meters of anti-static modern dust-free workshop. At the same time, we have With a professional, capable, efficient and pragmatic management and engineering technical team and 100 skilled employees, we can quickly and effectively solve various problems in the production process and customer feedback to ensure continuous and stable product quality. The company follows the latest industry development direction, grasps the latest technology development trends, disseminates Surface Mount Technology advanced technologies and concepts, maintains technical advantages, and is always at the forefront of Surface Mount Technology processing.

Type of processing

At present, the company has more than 12 million Daly dalyph production capacity, which can be fitted with various electronic components such as BGA and QFP, and the fitting distance is 01005 ~ 0.2mm. The main service areas include industrial, consumer, medical, network communication, digital, computer peripherals and other electronic products.Products include navigator, security equipment, monitoring equipment, hard disk external box, keyboard, MP3, tablet motherboard, high-end graphics card, U disk, all-in-one card reader, router, set-top box, digital camera, switching power supply, wireless phone motherboard, etc. It can ensure the completion of production and delivery tasks with quality and quantity.

Production equipment

The company has five Japanese Fuji NXT multi-module double-track high-speed patch production lines, a total of more than 40 modules, Shimadzu X-ray, online dual-track SPI, online AOI optical detector, BGA maintenance station and other advanced production test equipment. In terms of material management, the company adopts the international advanced SAP computer management system and has set up an electronic warehouse with strict anti-static and temperature and humidity control, equipped with drying boxes, vacuum packaging machines, ovens and other equipment to ensure that the inventory of electronic components is well protected.

After more than 20 years of unremitting efforts and persistent pursuit of quality, Dongguan Changlong Electronic Industry Co., Ltd. has established a good reputation in the Surface Mount Technology processing service industry of electronic products. With first-class product quality, first-class service and good reputation, it has been recognized by the majority of customers and has become the most powerful in Dongguan. One of the Surface Mount Technology processing enterprises. The company has ISO9000 and ISO14001 certifications.

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