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ECE3080-L-12a-MOSCAP and MOSFETs

ECE3080-L-12a-MOSCAP and MOSFETs - Lecture 12 MOS Field...

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ECE 3040 - Dr. Alan Doolittle Georgia Tech Lecture 12 MOS Field Effect Devices How do they work? (math included for completeness but skipped in lectures as this should be a review of ECE 3040 material – Needed for advanced FET Device discussion) Reading: (Cont’d) Notes and Anderson 2 Chapter 7
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ECE 3040 - Dr. Alan Doolittle Georgia Tech MOS Capacitor Metal “Gate” Insulator Semiconductor “MOS” = Metal- Oxide- Semiconductor “MOS” actually refers to “Metal”– Silicon Dioxide – Silicon Other material systems have similar “MIS” structures formed by Metal – Insulator – Semiconductor The capacitor itself forms the basis of digital logic circuits, and DRAM storage units (storing charge) or can simply supply a capacitance for an analog integrated circuit. It will also be the building block for the most common transistor produced – the MOS transistor. The substrate is normally taken to be grounded and the “Gate” electrode can be biased with a voltage, V G
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