inverse square of the capacitance (i.e. 1/C;² ) as a function of the reverse bias voltage is shown below: 0,× 10 26 6 4 2 -4 -3 -2 -1 1 2 V, (Volts) a) From the data shown above, figure out the built in voltage ør b) (a) above, figure out the dopings, Na and Nd , on both sides of the junction. From the information given, the data shown above, and your answer in part 1/C? (1/Farads?)

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2.0 Junction Capacitance
Consider a PN junction diode as depicted below. Suppose the junction area is
100x10-8 cm² (100 square microns)
N-doped
Na
P-doped
Na
VD
The N- and P- dopings of the PN-diode are unknown. However, it is known that N-
side is much more heavily doped than the P-side. The depletion region capacitance
of the PN diode in reverse bias is measured as a function of the reverse bias. The
Transcribed Image Text:2.0 Junction Capacitance Consider a PN junction diode as depicted below. Suppose the junction area is 100x10-8 cm² (100 square microns) N-doped Na P-doped Na VD The N- and P- dopings of the PN-diode are unknown. However, it is known that N- side is much more heavily doped than the P-side. The depletion region capacitance of the PN diode in reverse bias is measured as a function of the reverse bias. The
inverse square of the capacitance (i.e. 1/C;² ) as a function of the reverse bias voltage
is shown below:
0,× 10 26
6
4
2
-4
-3
-2
-1
1
2
V, (Volts)
a)
From the data shown above, figure out the built in voltage ør
b)
(a) above, figure out the dopings, Na and Nd , on both sides of the junction.
From the information given, the data shown above, and your answer in part
1/C? (1/Farads?)
Transcribed Image Text:inverse square of the capacitance (i.e. 1/C;² ) as a function of the reverse bias voltage is shown below: 0,× 10 26 6 4 2 -4 -3 -2 -1 1 2 V, (Volts) a) From the data shown above, figure out the built in voltage ør b) (a) above, figure out the dopings, Na and Nd , on both sides of the junction. From the information given, the data shown above, and your answer in part 1/C? (1/Farads?)
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