Semiconductors are believed to be a unique class of chemical elements. Such class was discovered in early 1980's but there were no required technologies to perform the further researches. The analysis of semiconductors was carried on just in the 1920's. The first successful experiment was performed by the Russian physicists in 1923. They proved that semiconductors may be utilized to accelerate fluctuations. During further years igbt modules were excluded by tubes. The most significant event in the history of semiconductor devices was the creation of the first transistor by Bell corporation in 1949. Since then a lot of people all over the world become interested in such kind of matter as semiconductors.
Many scientists carry out a huge amount of experiments simply to get more knowledge about such characteristic of semiconductors as stimulated radiation. By usage of such principles as p - n barriers and heterojunction scientists managed to create laser device in the beginning of the 60's.
Today we can see a huge amount of different diodes which operate with help of usage of semiconductors. Nowadays it is impossible to perform any experiments without some modern technologies which are based on usage of semiconductors.
Semiconductors are a broad class of substances that are characterized by the value of conductivity which lies between the conductivities of metals and isolators. There are some substances that are mainly utilized to develop the semiconductor devices. They are germanium, selenium, silicon, etc.
For quite long period of time semiconductors haven't drawn the attention of scientists and engineers. The first experiments of semiconductors were begun by famous soviet scientist Abram Ioffe. That genius offered many methods of use of semiconductors and every modern system works on such principles. There are electron conduction and hole conduction provided by semiconductor devices. The characteristics of semiconductor are related to the conditions they are placed. To get the characteristics that are needed for the research or appropriate use of device some admixtures are added to semiconductors.
The most significant semiconductor devices which are used in technologies are diodes, transistors and thyristors that are based on materials with electron and hole conductions. Their unique characteristics are frequently utilized today, but they became spread just ten years ago. There is a possibility to transform almost every kind of energy into electric power by mans of semiconductors. Some of them are even able to produce cold and heat. Semiconductors execute the main functions in many various devices: atomic batteries, quantum generators, processors and even primitive radio receivers. Almost every engineer who works in company related to electricity should realize how significant the power resistors are. The weight and size of semiconductor systems are significantly smaller than their tube variants. The analogue devices are not equal in case we speak about their reliability and power. Tube falls behind.
There are a lot of various systems nowadays, that significantly ease our life and all these inventions appear just owing to the semiconductor devices.
Tags: current-sensors, diodes, fuses, igbt-modules, power-resistors, semiconductor-assembly