How are diodes produced?

How are diodes produced? Speaking of semiconductor industry, it has two branches, namely integrated circuits and discrete devices. As a very important basic component product, discrete devices can realize the functions of rectification, voltage stabilization, switching and mixing in electronic equipment, and have the characteristics of extremely wide application range and huge consumption. Discrete devices are widely used in consumer electronics, computers, communication networks, automotive electronics, electronic instruments, LED display, power management, industry and automatic control, including semiconductor diodes, triodes, MOSFET, bridge rectifiers, thyristors, TVS, etc. Diode is a very common discrete device. It is a two-electrode electronic component with asymmetric conductance. An ideal diode has zero resistance between the two electrodes (anode and cathode) when it is turned on in the forward direction, and infinite resistance when it is turned on in the reverse direction, that is, current is only allowed to flow through the diode in one direction. Common diodes are rectifier diode, switching diode, Schottky diode, Zener diode, TVS diode, high frequency diode and so on.

Seeing this, you may be curious, how are diodes produced? In this paper, the production process of Youfeng Micro-factory is analyzed to give you a deeper understanding of the production process and details of diodes.

The structure of diode includes PN junction+diode shell+lead. Youfeng Micro-procurement personnel prepare the materials and transport them to the sealing and testing center. After wafer cutting, die bonding/coring, welding/bonding, plastic sealing and curing, electroplating, rib cutting, product testing, marking, ribbon braiding, finished product packaging and other processes, Youfeng Micro has a special environmental testing laboratory, product appearance analysis laboratory and other professional laboratories, and the company's products must undergo rigorous testing.