What advantages do tri-gate MOSFETs have over FinFETs?

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In summary, the difference between multi-fin trigate MOSFET and multi-fin FinFET is mainly in their names, with the latter being named after its resemblance to a fish fin. Tri-gated devices, favored by Professor C.M Hu, have better performance due to their larger surface area and increased gate control over the channel. Interested individuals can refer to Prof. C.M Hu's materials or a review article on the subject for more information.
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ohopu
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What is the difference between multi-fin trigate MOSFET and multi-fin FinFET? Why Trigate performs better?
 
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  • #2
They are generally the same thing. Just different names as trade names.
 
  • #3
They are the same but people call different names. They call it FinFET because the shape of the device looks like a fin of a fish. I recalled that Prof. C.M Hu from Berkeley prefer tri-gate. (I don't remember clearly). The performance is better because it has a better subtreshold behavior. The gate has more control on the channel. If you are interested, you may go to Prof. C.M Hu to take a look. There should be some materials about trigate MOSFET.
 
  • #4
FinFET can sometimes refer to a double-gated (side-gated) OR a tri-gated (top and side gated) device. Tri-gated is, as the name says, tri-gated. Tri-gated devices are superior because they have a larger surface area over which the gate contacts. Remember that the gate stack/semiconductor is essentially an M/I/S capacitor. To increase the capacitance, which increases the gate's control over the channel, you want to increase the area over which the capacitor covers.

I suggest this review article: http://www.nature.com/nature/journal/v479/n7373/full/nature10676.html
 
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What is a Tri-gate MOSFET?

A Tri-gate MOSFET is a type of transistor used in electronic devices. It is a three-dimensional structure with the gate electrode wrapped around three sides of the channel, allowing for better control of the flow of current.

How does a Tri-gate MOSFET differ from a traditional planar MOSFET?

In a traditional planar MOSFET, the gate electrode is placed on top of the channel, which limits its control over the flow of current. In a Tri-gate MOSFET, the gate electrode wraps around the channel, providing better control and reducing leakage current.

What are the advantages of using a Tri-gate MOSFET?

Tri-gate MOSFETs offer several advantages over traditional planar MOSFETs, including reduced leakage current, higher performance, and lower power consumption. They also allow for smaller and more efficient electronic devices.

What is a FinFET?

A FinFET is another type of transistor used in electronic devices. It is a three-dimensional structure with a thin vertical channel (or "fin") surrounded by a gate electrode, allowing for better control of the flow of current.

How does a FinFET differ from a Tri-gate MOSFET?

A FinFET and a Tri-gate MOSFET are both three-dimensional transistors with improved control over current flow. However, FinFETs have a vertical channel while Tri-gate MOSFETs have a horizontal channel. FinFETs also typically have a larger fin width, allowing for better current control and lower leakage current.

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