Pcb assembly is a complex and comprehensive system electronic engineering technology, involving in substrates, components, technics materials, design technology, pcb assembly technics technology, highly automated assembly and testing equipment, and other aspects, covering machine, electricity, gas, Light, heat, physics, chemistry, physical chemistry, new materials, new technics, computers, new management concepts and models, and many other subjects.
Pcb assembly products have the advantages of compact structure, small volume, vibration resistance, impact resistance, high frequency characteristics and high production efficiency. Pcb assembly production equipment has the characteristics of automatic, high precision, high speed and high efficiency. The Pcb assembly technics is very different from the traditional plug-in technics. The chip components are very small in size and the assembly density is very high. In addition, the properties of the pcb assembled technics materials such as solder paste and patch adhesive viscous and thixotropic properties has a close relationship to ambient temperature and humidity .
Therefore, Pcb manufacturing equipment and pcb assembly technics have special requirements on the production site of electricity, gas, ventilation, lighting, ambient temperature, relative humidity, air cleanliness, anti-static and other conditions. Technics control and quality management in Pcb assembly manufacturing is also one of the most important technics conditions for surface assembly technics.
