Boosting Speed: Unleashing the Power of CMOS over PMOS and NMOS Structures

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Discussion Overview

The discussion centers on the advantages of CMOS technology compared to NMOS and PMOS structures, particularly focusing on speed and power dissipation. Participants explore the operational mechanisms of CMOS and the roles of PMOS and NMOS in achieving these benefits.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant asserts that CMOS is preferred over NMOS and PMOS for greater speed of operation, questioning how to optimize speed using both types in a CMOS structure.
  • Another participant counters that the primary motivation for using CMOS is to save power rather than to increase speed, seeking clarification on this point.
  • A subsequent reply acknowledges the power-saving aspect of CMOS but questions how the combination of PMOS and NMOS contributes to reduced power dissipation, asking for the underlying logic.
  • One participant suggests consulting Wikipedia for an overview of the advantages of CMOS technology over NMOS or PMOS alone.

Areas of Agreement / Disagreement

Participants express differing views on whether the primary advantage of CMOS is speed or power efficiency, indicating that multiple competing perspectives remain in the discussion.

Contextual Notes

There are unresolved assumptions regarding the specific mechanisms by which PMOS and NMOS together contribute to power dissipation reduction in CMOS structures.

RajChakrabrty
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we know that,
CMOS is used rather than NMOS and PMOS for greater speed of operation.
but,
using PMOS and NMOS together for CMOS structure,
how can we operate it for greater speed?



:::: in CMOS structure, P and NMOS are shown one beside another.(for many cases,though there are many other structural views).
 
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The motivation for using CMOS over NMOS or PMOS alone is really to save power, not to increase speed. Does this answer your question?
 
phyzguy said:
The motivation for using CMOS over NMOS or PMOS alone is really to save power, not to increase speed. Does this answer your question?

yes,
I am sorry.
CMOS is used for less power dissipation.

but,
how p and nMOS both manage to reduce power dissipation?
what is the logic behind it?
 
Take a look at the Wikipedia on CMOS. It has a nice overview of why CMOS is generally superior to NMOS or PMOS alone.
 

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