How about these parameters as temperature increase?

[pugongying]

flicker noise

MOS threshold voltage? PMOS/NMOS

electron mobility

 

[A.Anand Srinivasan]

threshold voltage decreases with temperature....
mobility increases with temperature....

 

[mists]

mobility increases with temperature....

i think mobility should decreases with temperature

 

[hr_rezaee]

Hi
in low temp, mobility increases but in high temp, (such as room temp and above) mobility decreases.
regards

 

[A.Anand Srinivasan]

the mobility increases until the electron or hole undergoes velocity saturation(speed reduction due to collision equalizes the speed due to absorbed energy via heat)... i am not sure but i think that temperature is higher than room temperature....

 

[carlson]

temperature rise => vt decrease, mobility decrease

 

[pugongying]

why threshold decrease as temperature rise?

and I have found that above room temperature,electron mobility decrease as temperature increase because the scattering effect increases

 

[A.Anand Srinivasan]

Vt is related to channel formation and here the minority carriers just have to traverse some distance and then form a channel so it just depends on the energy of the minority carrier which is directly proportional to the temperature....

 

[engrak]

1.flicer noise increases with temp increase.
vt decreases with temp increase.

Added after 35 seconds:

1.flicer noise increases with temp increase.
2.vt decreases with temp increase.
3.mobility decreases with temp increase.

 

[MikeR]

Do you trust scientists from Berkeley? You can see some equations in BSIM 4.4 manual chapter 12 or modeling in CAD.