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How to explain field effect transistor? 


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A field-effect transistor (FET) is a semiconductor device crucial in modern electronics. It consists of a gate electrode controlling the flow of current between the source and drain regions through a semiconductor channel. FETs can be categorized into various types such as MOSFETs, which dominate the semiconductor industry due to their versatility and efficiency. The structure typically includes a gate dielectric layer, a channel layer, and source/drain electrodes. Additionally, FETs can incorporate two-dimensional materials in the channel layer and gate, enhancing their radiation-resistance capabilities. Understanding FET operation modes, like gate-induced drain leakage, is essential for designing efficient circuits. By utilizing different materials and structures, FETs offer a wide range of applications in electronic devices.

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A field-effect transistor consists of a channel layer, insulation layer, grid, and electrode made of two-dimensional materials, enhancing radiation resistance in its operation.
Patent
Yuh-Renn Wu, Liu Chi-Wen, Chen Shou-Fang 
01 May 2018
1 Citations
A field effect transistor (FET) consists of a gate dielectric layer, a 2D channel layer with first and second finger regions, and a gate electrode controlling the current flow.
Field-effect transistors, like MOSFETs, control current flow via an electric field at the gate terminal, differing from BJTs. They dominate modern semiconductor technology due to their versatility and efficiency.
Patent
Saka Naoki, Okamoto Daisaku, Tanaka Hideki 
17 Sep 2019
1 Citations
A field effect transistor consists of a gate electrode, semiconductor layer with source and drain regions, contact plugs, metal portions, insulating film, and low dielectric constant region for electronic control.
Patent
Lin Xi, Shen Yi Hua, Pan Jian 
09 May 2019
5 Citations
A field-effect transistor consists of a fin structure with gate structures, first doped layers with specific ions on one side, and second doped layers with different ions on the other side.

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What is spin transistor?4 answersA spin transistor is a device that manipulates the spin degree of freedom of charge carriers instead of the charge degree of freedom. It is typically implemented by modulating the spin-orbit interaction in the transistor's channel with a gate voltage, causing controlled spin precession of the current carriers and modulating the channel current between the source and drain contacts. One concept for a spin transistor involves using a strained topological insulator (STI) as the channel material, where the transistor function is elicited by straining the STI with a gate voltage to modify the energy dispersion relation or the Dirac velocity of the surface states. This rotation of the spins of the carriers in the channel modulates the current flowing between the source and drain contacts. This concept is known as a strained-topological-insulator-spin-field-effect-transistor (STI-SPINFET).
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