In this kind of detector, there is a metal wire (thin as a hair and forming a detection contact) that is in contact with the surface of the ore (semiconductor), which can not only allow the signal current to flow in one direction, but also prevent the signal current from going in the opposite direction. However, limited to the technological level at the time, the materials used to manufacture such devices were not sufficiently pure, making it impossible to manufacture such transistors.īecause of the unsatisfactory effect of the electronic tube processing high-frequency signals, people try to improve the ore whisker type detector used in the mineral radio. The invention of the transistor can be traced back to 1929, when engineer Lilian Feld had already obtained a patent for a transistor. The electrical properties of semiconductors are also used in telephone systems. In the first half of the 20th century, mineral radios, which were widely popular among radio enthusiasts, used ore as a semiconductor material for detection. In the first 10 years of the 20th century, communication systems have begun to use semiconductor materials. The invention of the transistor sounded the clarion call for the subsequent birth of integrated circuits. After the appearance of the transistor, people can use a small, low-power electronic device to replace the large-scale and high-power electronic tube. The advent of the transistor was a major invention in the 20th century and a precursor to the revolution in microelectronics. In December 1947, a research team composed of Shockley, Barding, and Bratton of Bell Labs in the United States developed a point-contact germanium transistor. Transistors can be packaged individually or in a very small area that can hold 100 million or more transistors as part of an integrated circuit. Transistors are the basic building blocks that regulate the operation of computers, mobile phones, and all other modern electronic circuits.īecause of its fast response speed and high accuracy, transistors can be used for a variety of digital and analog functions, including amplification, switching, voltage stabilization, signal modulation and oscillators. Intel 3D Transistor Technology (16 photos) Transistor is a semiconductor device, commonly used in amplifiers or electronically controlled switches. The transistor has three poles (terminals) the three poles (terminals) of the bipolar transistor are the Emitter, Base and Collector composed of N-type and P-type semiconductors respectively field The three poles (terminals) of the effect transistor are the source (Source), the gate (Gate) and the drain (Drain).īecause the transistor has three electrodes, there are also three ways to use it, namely emitter grounding (also known as common emitter amplification, CE configuration), base grounding (also known as common base amplification, CB group State) and collector grounding (also known as collective amplification, CC configuration, emitter follower). Three-terminal transistors are mainly divided into two categories: bipolar transistors (BJT) and field effect transistors (FET, unipolar). Transistors are sometimes referred to as transistors. Tube, thyristor (the latter three are all three-terminal), etc. Strictly speaking, a transistor generally refers to all single components based on semiconductor materials, including diodes (two-terminal), triodes, and field effects made of various semiconductor materials.
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