answersLogoWhite

0

What mean of pmos?

Updated: 9/17/2019
User Avatar

Wiki User

9y ago

Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: What mean of pmos?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What are the differences between nmos and pmos transistors?

NMOS is built with n-type source and drain and a p-type substrate, while PMOS is built with p-type source and drain and a n-type substrate. In a NMOS, carriers are electrons, while in a PMOS, carriers are holes. When a high voltage is applied to the gate, NMOS will conduct, while PMOS will not. Furthermore, when a low voltage is applied in the gate, NMOS will not conduct and PMOS will conduct. NMOS are considered to be faster than PMOS, since the carriers in NMOS, which are electrons, travel twice as fast as holes, which are the carriers in PMOS. But PMOS devices are more immune to noise than NMOS devices. Furthermore, NMOS ICs would be smaller than PMOS ICs (that give the same functionality), since the NMOS can provide one-half of the impedance provided by a PMOS (which has the same geometry and operating conditions).


What type of doping have the drain and the source of a PMOS transistor?

PMOS - (drain + source) = p-type doping NMOS - (drain + source) = n-type doping :)


Is cmos a combination of both nmos and pmos?

yes


Why the resistance of PMOS is greater than NMOS?

because pmos has low mobility . the inverter threshold voltage can be shifted to the middle and the inverter is more symmetrical in terms of transistor times.


What happens if you interchange pmos and nmos in a cmos inverter?

it becomes a buffer


Why pmos is always connected to supply voltage vdd?

for reducing the leakage current.


The pmosc enter pmos code in five seven or nine digits?

true


What happens if you change pmos to nmos and nmos to pmos in cmos?

It will act like a buffer but not the exact buffer. Since nmos conduct logic 1 weakly and pmos conduct logic 0 weakly, the output ranges from vdd-vtn to vtp. For eg. If you apply 5v then the op will be 4.3 not the complete 5v. If you apply 0v then output will be 0.7v not 0 v. Hope this works


Why Pmos transistor is usually larger than Nmos transistor in layout?

Due to differences in carrier mobility between P and N type semiconductor, for similarly doped channels the channel of a PMOS FET will be a bit wider than the channel of an NMOS FET so that they both have identical channel resistance. To make the channel wider the PMOS FET will take a larger chip area.


Which mos needs logic '1' on its gate terminal to get ON?

It is NMOS FET. PMOS works in a reverse way.


What is difference between inverter and buffer?

if you connect Nmos and Pmos other way around then it act as buffer


What are sleep transistors?

A rest transistor is either a pMOS or nMOS high VT transistor and is utilized as a change to close off force supplies to parts of a configuration in standby mode. The pMOS rest transistor is utilized to switch VDD supply and henceforth is known as a "header switch."