Please include reason True or False: For each of the following statements, circl
ID: 2268299 • Letter: P
Question
Please include reason
True or False: For each of the following statements, circle Tifit is true and F ifit is false. 2 pts. each. 1 A shared junction without contact will provide the smallest possible junction capacitance T F2 The maximum voltage a pMOS transistor (with Vc-0) can pass is Vtp 3 4 F5 (Vtp is the Threshold) A CMOS NAND gate has 2 parallel pMOS transistors Intrinsic silicon means there is 10% dopant material inside MOSFET gate capacitance will be largets during depletion mode of T operation. 6 An nMOS transistor switch is turned on by a logic high input at the Drain terminal. 7 An n well will undercut a pMOSFET gate but will not reduce the effective channel length (L) 8 Subthreshold operation of a pMOSFET means its Vsg is less than or equal to Vthp 9 Latch-up means there is a single inverter buffer in the signal path. T F10 The depletion layer at a pn junction will increase in forward biased modeExplanation / Answer
1. T
Junction capacitance is the capacitance which forms in a PN junction diode under reverse bias. In a normal capacitor, the two parallel conducting plates are electrodes which allow the conduction. Whereas, the medium between two parallel conducting plates is purely insulating dielectric material which does not allow conduction.
2. T
Because output=Vgs-Vtp
if Vgs(vg=0)
output=|vtp|
3.T
In nand logic pmos transsitor are arranged in parallel.
4.F
Intrensic semicondutor means pure form of semi conductor,no doping exists.
5.T
Generally C=q/v,therefore if v increases c decreases,vice-versa.Generally depletion mode mosfet requires less gate voltage at the gate.
6.F
The transistor on /off depends on gate voltage.
7.True
8.T
the condition for operation in subthreashold region is Vgs<Vt
9.F
Latch is the generation of a low-impedance path inCMOS chips between the power supply and the ground rails due to interaction of parasitic pnp and npn bipolar transistors.
10.F
Depltion region in PN juction when applied with forward bias will increase .