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To Electronics has been able to evolve, scientists invented the transistor. The first transistor was large, expensive and slow, but it expected increased device reliability and performance. Microelectronic technology has allowed to increase its performance, power consumption and reduce the size of the transistor and other circuit elements to the unseen to the naked eye. Reducing the distance between elements in the schema, the scientists have achieved better performance. But the problem of reliability and are not removed, since all components are manufactured separately and their compounds, used metal conductors. And as we know, the more components and connections, so the reliability of the system is less. This problem has begun to form a semiconductor integrated circuit (all components on one substrate). In 1948 year invent bipolar junction transistor, it charges the two polarities are involved in the work. Currently, all electrical equipment contain transistors based on a chip. Microelectronics and nanoelectronics allowed to place more than one million transistors on a single chip.As for me I believe that articlevery useful, both for ordinary people and for engineers. I think what everyone needs to know how developed something that surrounds us. Because all the equipment and machinery is all built on electronics.
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