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Process transconductance parameter is directly proportional to
  • a)
    Electron mobility only
  • b)
    (Electron mobility)-1 only
  • c)
    Oxide capacitance only
  • d)
    Product of oxide capacitance and electron mobility
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Process transconductance parameter is directly proportional toa)Electr...
 It is the product of the electronic mobility with the oxide capacitance (F/m2).
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Process transconductance parameter is directly proportional toa)Electr...
The process transconductance parameter, often denoted as gm, is an important parameter in electronic devices such as transistors. It is a measure of the device's ability to convert a voltage signal at the input into a current signal at the output. In other words, it describes the gain of the device.

The process transconductance parameter can be influenced by various factors, including the electron mobility and the oxide capacitance. Let's examine each option and understand its impact on the process transconductance parameter.

a) Electron mobility only:
The electron mobility refers to the speed at which electrons can move through a material under the influence of an electric field. It is a crucial parameter in determining the performance of electronic devices. However, the process transconductance parameter is not solely dependent on electron mobility. Other factors also come into play.

b) (Electron mobility)-1 only:
Taking the inverse of the electron mobility alone does not give us the correct relationship with the process transconductance parameter. Therefore, this option is incorrect.

c) Oxide capacitance only:
The oxide capacitance is the capacitance associated with the oxide layer in a device, such as a transistor. It plays a role in determining the charge storage and flow in the device. While the oxide capacitance can affect the performance of the device, it is not the sole factor that determines the process transconductance parameter.

d) Product of oxide capacitance and electron mobility:
The correct answer is option 'D'. The process transconductance parameter is directly proportional to the product of the oxide capacitance and the electron mobility. This means that increasing either the oxide capacitance or the electron mobility will result in an increase in the process transconductance parameter. This relationship can be mathematically expressed as gm ∝ Cox * μ, where gm is the process transconductance parameter, Cox is the oxide capacitance, and μ is the electron mobility.

By considering the product of the oxide capacitance and the electron mobility, we take into account both the charge storage and flow capabilities of the device (oxide capacitance) as well as the speed at which charges can move through the device (electron mobility). Both of these factors contribute to the overall performance of the device and its ability to convert a voltage signal into a current signal.

In conclusion, the process transconductance parameter is directly proportional to the product of the oxide capacitance and the electron mobility. This relationship captures the impact of both the charge storage and flow capabilities of the device (oxide capacitance) and the speed at which charges can move through the device (electron mobility).
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Process transconductance parameter is directly proportional toa)Electron mobility onlyb)(Electron mobility)-1onlyc)Oxide capacitance onlyd)Product of oxide capacitance and electron mobilityCorrect answer is option 'D'. Can you explain this answer?
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