June 25th, 2008
The Improvement of Semiconductor Inventions
Semiconductors are believed to be a special class of chemical elements. Scientists got known about such materials in the end of the 19th century, but only in the 20th century scientists managed to obtain more knowledge about them. The first successful experiment was performed by the Russian scientists in 1923. They proved that semiconductors can be used to accelerate fluctuations. During several years igbt modules were ejected by tubes. The most significant event in the history of semiconductor devices was the creation of the first transistor by Bell corporation in 1949. That was the start of the epoch of semiconductor technologies.
The concern to optical characteristics of semiconductors revived due to research of induced emission in semiconductors. The first laser device was created with utilizing of semiconductors. The first version was based on p - n barriers, the latest ones - on heterojunction.
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