MOS Flashcards
When does Saturation occur?
Saturation occurs when there is pinch-off in the channel.
When the difference between the gate voltage and the threshold voltage is less than the drain voltage.
Fermi potential equation (in equation sheet)
(kt/q)ln(Na/ni)
equation for Cox
(E_o*E_si)/x_ox
Metal work function for a polysilicon gate?
4.05V
Equation for work function difference?
FILL IN
What charge of a p-type substrate?
negative
Qss eqn
Qss = q*N
Defn of Threshold voltage
Gate voltage at which inversion is caused and the transistor starts conducting.
Eqn for L_eff
L/(1+yVDS)
What is meant by the term Constant field scaling?
Voltages are scaled as scaling is pursued.
How does voltage and current scale in constant voltage scaling?
voltage = const Current = k
How does voltage and current scale in constant field scaling?
voltage = 1/k current = 1/k
