PCB Blogger-China PCB Factory,HOYOGO

          In  PCBA factory , in order to prevent components from falling off or shifting during the wave soldering process, it is often necessary to use SMD adhesive to fix the components on the PCB board.  So what should you pay attention to when using  SMD Adhesive  in PCBA processing?   1)  The purchased  SMD  adhesive should be placed in a refrigerator below 5°C and stored in a low-temperature seal.  And do a good job in registration, pay attention to the production date and service life. It is also necessary to note that large quantities of incoming goods must pass inspection before they can be put into storage.     2)  After taking it out of the refrigerator during use, it should be restored to room temperature for 2 to 3 hours to allow it to equilibrate with room temperature before opening the container to prevent the SMD adhesive frost from absorbing moisture. Please pay attention to the ty...

          When the scorching summer sun b akes the earth , water parks become drea mlike   kingdoms  where people escape the heat and   unleash their joy . Behind this  ocean of happiness , a force of technology quietly shines   -  the underwater light PCB. Like a magician of light and shadow, it  uses   precise  technology and   innovat ive   design to  weave ever-changing colors and  rhythm s   into brilliant, joyful scenes throughout the water   park.   In the uniquely humid environment of water parks, the waterproof performance of underwater light PCBs is critical. To achieve reliable waterproofing, these PCBs employ a multi-layered protection design. Firstly, a layer of conformal coating is applied to the PCB surface. This transparent protective film acts like a "raincoat" for the PCB, effectively isolating it from water, moisture, and corrosive substances. Secondly, sealed...

Welding is to reliably connect all kinds of components that make up the complete machine product, and its quality is closely related to the quality of the complete machine product. The quality of each solder joint affects the stability, reliability and electrical performance of the entire machine. Do you know how to check the welding quality of PCBA manual welding?   1. Quality Requirement for Manual Welding 1) Electrical contact should be good:  Good solder joints should have reliable electrical connection performance, and  phenomena such as false soldering and  bridgin g  are  not  allowed.   2) Mechanical strength must be reliable: It is necessary to ensure that the solder joints will not fall off due to normal vibration during use.     3) Should maintain a beautiful appearance: The surface of a good solder joint should be smooth, bright, and free from sharp edges, wrinkles, bubbles, slag inclusions, and pitting. The transition from t...

          In PCBA factory, flux is an indispensable auxiliary material in the welding process. The quality of the welding effect is not only related to the quality of the welding technology, components and printed circuit boards, but also the selection of flux is very important. Do you know how to choose flux?   1. Performance requirements for flux 1) The flux need to have the characteristics of removing surface oxides, preventing re-oxidation and reducing surface tension, which is the basic performance that the flux must have.     2)  The melting point should be lower than the solder.   Before the solder melts, the flux must melt first to fully exert its fluxing effect.     3) The wetting and diffusion speed of flux is faster than that of molten solder.     4 ) The viscosity and density of flux are smaller than that of solder. A high viscosity will make wetting and diffusion difficult, and a high density will no...

          Amid the booming development of the electronic information industry, PCBs serve as a fundamental component of electronic products, responsible for connecting components and transmitting electrical signals. According to different application fields, PCBs can be categorized into industrial PCBs and consumer PCBs, which differ significantly in terms of performance, manufacturing processes, cost, and  other aspects .   1. Differences in  A pplication  S cenarios Consumer PCBs are primarily used in consumer electronics such as smartphones, tablets, smartwatches, and home gaming consoles. These products are designed for the mass market, with a strong focus on user experience and product visual appeal, and are characterized by fast-paced iteration cycles. Smartphones offer a prime example: major brands typically launch new flagship models every year, featuring ongoing feature enhancements and innovative designs. This fast pace drives ...

          SMT package not only plays the role of placing, fixing, sealing, protecting the chip and enhancing   the electrical   and thermal performance, but also serves as a  “ bridge ”  between the internal circuit of the chip and the external circuit. Do you know what types of SMT package are there?   1.  QFP Package QFP package is a quad flat package, which is one of the main packaging forms of SMT integrated circuits. The leads come out from four sides in a seagull wing (L) shape. There are three types of base materials: ceramic, metal and plastic. In terms of quantity, plastic package accounts for the vast majority. When the material is not specifically indicated, in most cases it is plastic QFP.       2.  PLCC Package PLCC is a plastic leaded chip carrier package for an integrated circuit.   Its leads hook back inward and are called hooked (J-shaped) electrodes.  Most of the integrated circui...