Power supply technology and power semiconductor device manufacturing technology depend on each other and develop together. Since the advent of thyristor rectifiers in the early 1950s, it has opened the prelude to the rapid development of power semiconductor device manufacturing technology and power supply technology, and laid the foundation for modern power electronics. Power electronic technology includes two parts: power electronic device manufacturing technology and power electronic circuit and device, of which power electronic device and its application technology is the foundation.

Power supply and power semiconductor devices are important basic science and industry, from People's Daily life to industry, agricultural production, national defense construction and scientific research,which  are inseparable from the power supply. The development of power semiconductor device manufacturing technology has supported the development of power supply technology, on the contrary, the development of power supply technology has put forward higher requirements for power semiconductor devices. Therefore, power supply technology and semiconductor power device manufacturing technology are gradually developed in this interdependent environment.

For half a century, the development of power supply technology and semiconductor power device manufacturing technology has continued to innovate. Experienced from vacuum thyristor, vacuum triode to semiconducting diode, triode, thyristor, power field effect transistor (MOSFET), insulated gate bipolar transistor (IGBT), gate controlled thyristor (MCT), and other new devices of different times. In short, semiconductor power devices are developing towards high frequency, high current, high voltage, grid-controlled turn-off direction.

The development of power devices has promoted the upgrading of power supply technology, and the power supply technology is also developing towards high frequency, large capacity, modularity, high stability, high efficiency, and can effectively suppress harmonic and environmental noise pollution in the power grid.
  In the future, we can believe that under the guidance of new theories and new technologies; With the support of new materials and new devices, power supplies and semiconductor power devices will enter a broader space for development.