The base of an npn BJT T1 has a linear doping profile NB (x) as shown below.The base of another npn BJT T2 has a uniform doping NB of 1017 cm-3. All other parameters are identical for both devices. Assuming that the hole density profile is the same as that of doping, the common-emitter current gain of T1 is

Question

The base of an npn BJT T1 has a linear doping profile NB (x) as shown below.The base of another npn BJT T2 has a uniform doping NB of 1017 cm-3. All other parameters are identical for both devices. Assuming that the hole density profile is the same as that of doping, the common-emitter current gain of T1 is

TuteeHUB · Accepted Answer

approximately 0.3 times that of T2

TuteeHUB · Answer

approximately 2.0 times that of T2

TuteeHUB · Answer

approximately 2.5 times that of T2

TuteeHUB · Answer

approximately 0.7 times that of T2

1.	The base of an npn BJT T1 has a linear doping profile NB (x) as shown below.The base of another npn BJT T2 has a uniform doping NB of 1017 cm-3. All other parameters are identical for both devices. Assuming that the hole density profile is the same as that of doping, the common-emitter current gain of T1 is
A.	approximately 2.0 times that of T2
B.	approximately 0.3 times that of T2
C.	approximately 2.5 times that of T2
D.	approximately 0.7 times that of T2
Answer» B. approximately 0.3 times that of T2

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