The Improvement of Semiconductor Devices
June 25th, 2008Semiconductors are the detached type of substances. People got known about such substances 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 quicken the generation of fluctuations. But such devices as igct that are utilized nowadays were invented considerably later. First transistor was created in Bell's laboratory in 1949. This event influenced the quick development of semiconductor devices. That was the beginning of the epoch of semiconductor technologies.
The concern to optical characteristics of semiconductors revived because of research of induced emission in semiconductors. It led to the creation of semiconductor laser device based on utilizing of p - n barriers and then on heterojunction.
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