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This chapter explores the expression of current in MOSFETs as a function of various parameters such as channel width, length, and gate voltages. It discusses the influence of device characteristics on current flow and the significance of understanding the I-V characteristics including the triode and saturation regions. Key concepts of channel behavior during operation are examined to provide a foundational understanding of MOSFET behavior in electronic circuits.
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References
Lecture 11.pdfClass Notes
Memorization
What we have learnt
Final Test
Revision Tests
Term: IV Characteristic
Definition: The graph representing the relationship between current and voltage in a MOSFET under different operating conditions.
Term: Saturation Region
Definition: The operational state of a MOSFET where current becomes relatively constant despite increases in drain-source voltage (VDS).
Term: Triode Region
Definition: The region of operation where the MOSFET behaves like a resistor, with current depending on both gate-source and drain-source voltages.
Term: Pinch Off
Definition: The condition where the channel at the drain end of a MOSFET collapses, leading to a sharp rise in the drain-source voltage (VDS) in the saturation region.