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nmos    
n. N通路的金属氧化半导体

N通路的金属氧化半导体


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  • In an NMOS, does current flow from source to drain or vice-versa?
    The 'source' means the source of the majority charge carriers of the device If it is NMOS it would be the source of electrons If it is PMOS it would be the source of holes The 'drain' means the terminal through which the majority charge carriers of the device leave the device If it is NMOS the drain will be draining the electrons out of the
  • cmos - NMOS: what exactly forms the inversion layer - Electrical . . .
    The source and drain diffusions (for an nmos) are n diffusions in a p-type substrate Their junction with the substrate needs to be reverse biased If it was forward bias, current would flow from drain source to substrate and the transistor wouldn't work If they are reverse biased that can't happen (only a very small reverse current flows)
  • mosfet - Transconductance of a nmos transistor - Electrical Engineering . . .
    High Voltage NMOS layout design in UMC130nm process using Cadence Virtuoso 1
  • Why choose a PMOS over an NMOS or vice versa?
    To do this NMOS-on-high-side party trick requires making a higher-than-high gate drive voltage, so that the NMOS will be fully turned 'on' This higher-than-high trick is used in switching power supplies for example: they use a 'bootstrap' circuit to make that higher gate voltage for the NMOS on high side
  • nmos - Can a N-channel MOSFET used as a highside switch - Electrical . . .
    In my circuit i have a Reverse voltag protection IC that controls an NMOS on the highside This makes me think that it is possible I will just use the same NMOS for the physical switch as the one i will use for the RVP in series You might say why not integrate the physical switch to the NMOS in RVP, that seems to not possible as discussed
  • mosfet - NMOS - connect body to source or ground? - Electrical . . .
    I've had some weird occurances in labs etc (using Cadence) where sometimes we would be told to connect the body bulk substrate terminal of our NMOS devices to the most negative part of the circuit (ground) and sometimes we were told to connect the body bulk substrate terminal to the source?
  • Channel doping change to control the threshold voltage in an NMOS
    An NMOS transistor works by having an electric field, from the gate, through the gate oxide, towards the silicon substrate, attract electrons to the substrate to form a conductive layer called an 'electron inversion channel'
  • Circuit with LTspice default NMOS model does not work as expected
    The circuit is a voltage source in series with a resistor in series with the NMOS A pulse voltage source is connected to the gate terminal to turn on off the NMOS After I switched the drain and source terminals, the circuit worked as it was supposed to The problem seems to be that LTSpice incorrectly labeled the terminals of the NMOS
  • Understanding the working of a NAND GATE using NMOS Transistors
    Here is the NMOS for a NAND GATE, where Z indicates that it's in a floating state, the bold blue line indicates that the source-drain is set to High, the bold black line indicates that the source-drain is set to Low: I'll explain my understanding using the first image, with both gates set to Low
  • transistors - NMOS: why VGS instead of VG? - Electrical Engineering . . .
    I am having lots of trouble trying to understand how the mosfet is triggered The text I read assumes the source of the NMOS connect to ground, while a positive voltage is applied at the gate Because the source is grounded, VGS (voltage between gate and the source) = VG (voltage of the gate)





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