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The heart of MOSFET is the metal-oxide-semiconductor capacitor . This can give simple understanding to more complicated MOSFET structure.

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Understand how the n-channel is named and what inversion layer means

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Current flow in n-channel enhancement-mode MOSFET

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7) ID for n channel enhancement mode MOSFET

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7) ID for n channel enhancement mode MOSFET

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EE327 Lec 27g - ID for n-channel enhancement

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Drain current for n-channel enhancement-mode MOSFET

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8)ID for n channel depletion mode MOSFET

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8)ID for n channel depletion mode MOSFET

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EE327 Lec 27h - ID for n-channel depletion

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Drain current for n-channel depletion-mode MOSFET

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Drain current equations for n-channel MOSFET

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Uploaded by Matthew Watkins on 2013-11-20.

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1) Describe the basic structure and operation of a MOSFET.
2) Define enhancement mode and depletion mode MOSFET.
3)Describe what does it meant by threshold voltage, width-to-length (W/L) ratio, and drain-to-source saturation voltage.
4)How do you prove that a MOSFET is biased in the saturation region?

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1) Understand the physical structure and DC electrical characteristics of the MOSFET.
2) The current in MOSFET is controlled by the gate voltage.
3) In the nonsaturation bias region of operation, the drain current is also a function of drain voltage, whereas in the saturation region of operation the drain current is essentially independent of the drain voltage. The drain current is directly proportional to the W/L ratio of the transistor. Therefore W/L is the primary design variable in MOSFET circuit design.
4) Basic applications of MOSFET include switching currents and voltages, performing digital logic functions and amplifying time-varying signals.
5) MOSFET circuits can provide constant-current biasing.

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1) How do you prove that a MOSFET is biased in the saturation region?
2) In the DC analysis of some MOSFET circuits, quadratic equations in gate-to-source voltage (Vgs) are developed. How do you determine which is of the two possible solutions is the correct one?
3) Explain how pinch off voltage occurs?