| 25 June |
Sophisticated Systems which Are Utilized in Every Electric Equipment |
Quasi-conductor are the divided class of substances. Scientists got known about these materials in the end of the 19th century, but only in the 20th century scientists managed to get more knowledge about them. In 1923 Russian physicists proved the ability of utilizing of semiconductor-metal contacts to accelerate the generation of fluctuations. But such parts as semiconductor assembly which are utilized nowadays were created considerably later. The most considerable event in the history of semiconductor devices was the invention of the first transistor by Bell company in 1949. The intense research of the characteristics of semiconductors was begun at the same time.
The concern to optical features of semiconductors revived due to research of induced emission in semiconductors. By means of such principles as p - n barriers and heterojunction scientists managed to design laser device in the beginning of the 60's.
current sensors, diodes, fuses, igbt modules, power resistors, semiconductor assembly