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ECE474S09_Lecture38 - ECE 474 Principles of Electronic...

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ECE 474: Principles of Electronic Devices Prof. Virginia Ayres Electrical & Computer Engineering Michigan State University [email protected]
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Lecture 38: Chp. 06: Current State-of-Art Transistors MOSFET Capacitances C-V curves
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C (F/cm 2 ) C-V curve for an n-channel in a p-type Si block (low frequency curve) ON OFF
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C (F/cm 2 ) C-V curve for an p-channel in a n-type Si block (low frequency curve) ON OFF
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Frequency: Sweeping V Gate for example ± 5 Volts over and over Low versus high frequency: how fast you do ± 5 Volts over and over Low: 1- 1 kHz High: greater than 1 MHz (p. 289)
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C (F/cm 2 ) C-V curve for an n-channel in a p-type Si block Low frequency curve: 1 Hz ON OFF
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C (F/cm 2 ) C-V curve for an n-channel in a p-type Si block Basic high frequency curve: 1 MHz ON OFF
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C-V curve for an n-channel in a p-type Si block High frequency curve including start : 1 MHz
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Pr. 6.15: C-V curve for an p-channel in a n-type Si block High frequency curve including start: 1 MHz
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Find the threshold voltage for a real n-channel
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