# MOSFET

* ### **MOSFET**(metal-oxide-semiconductor field-effect transistor)is the "most" important device for advanced logic ICs such as the microprocessor and volatile memories such as DRAM and SRAM
* ### **MOSFET** offers high density, low power consumption, simpler manufacturing processes and high yield
* ### In this note we consider:
* Basic characteristics of MOSFET
* MOSFET scalling and short-channel effects
* **Complementary MOS(COMS) logic circuit**--> most important
* Silicon-on-insulator devices
* DRAM and SRAM
* Power MOSFET

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# Introduction(Structure)
* ### MOSFET is composed of an MOS capacitor and two p-n junctions placed immediately adjacent to the MOS capacitor
* ### Figure below shows a perspective view of an MOSFET:

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# Basic Characteristics of MOSFET

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# Linear region


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# Saturation region
* ## Velocity saturation region

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# Subthreshold region

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# Type of MOSFET

## There are 4 types of MOSFET, depending on he inversion layer.