Why MOSFET is more popular than BJT?

Device Physics doubts related to diode, transistor, BJT, MOSFET, JFET.
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Why MOSFET is more popular than BJT?

Post by Vijay » Tue Apr 15, 2014 7:23 pm

What are the reasons behind MOSFET being more popular than BJT?

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Re: Why MOSFET is more popular than BJT?

Post by Narveer » Sun May 04, 2014 8:39 pm

Compared to the bipolar junction transistor (BJT), MOS transistor have below advantages :
1. MOS transistor occupies a relatively smaller silicon area compared to BJT. More number of transistors can fitted in a given area.
2. MOS transistor involves fewer fabrication step (less number of masks). so lesser fabrication cost.
3. Scaling in MOS transistor is easy as its output characteristic depends on geometries ratio i.e W/L ratio.
4. Nearly zero static power consumption.

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