The full name of BGA is "ball grid array". It is to blow the solder balls on the CPU contacts with a hot air gun through the ball planting board, and then align them with the main board PCB for heating and soldering. This form is widely used in notebooks and all-in-one motherboards with embedded CPU.

Soldering is a process that required in many production. Sometimes, the quality of soldering directly affects the quality and safety of products. In some industries, such as computers, instruments, home appliances and other industries, the precision of the soldering process is high, and flux has been widely used in the soldering of these industries.

In mobile phones, laptops, cameras and other digital products, a large number of flexible cables are used for signal transmission. The surface layer of this type of flexible cable is a plastic film with high toughness, and many thin metal strips are arranged in the middle. AiXun precision soldering will talk to you today about the processing method of FPC flexible cable and some technical points. Because some flexible cables are in the position of frequent flipping, they are prone to breakage after a long time. If there is no new cable to replace, the following methods can be used for emergency treatment.

Review the history of PCB printed circuit board development in the early 20th century: the first batch of printed circuit board patents "printed wires" were issued in the early 20th century, but the industry-recognized PCB printed circuit board was first put into use after World War II

The manufacturing process of PCBA involves many links. In order to produce good products, the quality of each link must be controlled. General PCBA includes: PCB manufacturing, component procurement and inspection, SMT processing, plug-in processing,program ignition, testing, aging and a series of processes, the following AiXun Precision Soldering will detailed explain the matters that need to be paid attention to in each link.

For those who are new to the electronics industry, all kinds of names and words are very troublesome. The following AiXun Precision Soldering will introduce to you what PCBA means, and then introduce the difference between PCBA and PCB in detail.

Next, AiXun Precision Soldering will introduce three modification directions for you. 1. Potentiometer If you have a low to mid priced guitar, you can upgrade the wiring and potentiometers. A key parameter of the potentiometer is the resistance value. The cheaper the potentiometer, the higher the resistance value. The higher the resistance value, the more high frequencies the sound will have.

After getting the bare PCB board, you should first conduct a visual inspection to see if there are problems such as short circuit and open circuit. Then familiarize themselves with the schematic diagram of the development board, and compare the schematic diagram with the PCB silk screen layer, to avoid it does not match the PCB.