Presentation is loading. Please wait.

Presentation is loading. Please wait.

MOS TRANSISTOR (Remind the basics, emphasize the velocity saturation effects and parasitics) Structure of a NMOS transistor.

Similar presentations


Presentation on theme: "MOS TRANSISTOR (Remind the basics, emphasize the velocity saturation effects and parasitics) Structure of a NMOS transistor."— Presentation transcript:

1 MOS TRANSISTOR (Remind the basics, emphasize the velocity saturation effects and parasitics)
Structure of a NMOS transistor

2 Symbols for a PMOS transistor:

3 CMOS circuits contain both; the NMOS and PMOS transisrors

4 Parameters of the most basic model of a MOS transistor
the threshold voltage of the transistor, the mobility of electrons (or holes), the gate capacitance per unit area, the aspect ratio of the transistor, the gate-length modulation coefficient,

5

6 The threshold voltage

7 Voltage-current relations of a MOS transistor (Based on realistic inversion channel profile)

8

9

10

11

12

13 ~

14

15

16

17

18 Summary: G S D

19

20 ~

21

22

23

24

25

26

27

28 Model parameters and secondary effects

29

30

31

32 Oxide thickness vs minimum featura size (nm)

33

34

35

36

37

38

39 Parasitic components of MOS transistors

40

41

42

43

44

45 xj W X

46

47

48

49

50

51 metal (S terminal) poly - Si gate source diffusion RSe RSi

52

53

54

55

56


Download ppt "MOS TRANSISTOR (Remind the basics, emphasize the velocity saturation effects and parasitics) Structure of a NMOS transistor."

Similar presentations


Ads by Google