Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 2 (Q.No. 6)
6.
An one sided abrupt junction has 1021/m3 of dopants on the lightly doped side, zero bias voltage and a built-in potential of 0.2 V. The depletion width of abrupt junction.(q = 1.6 x 10-19 C, εr =16, ε0 = 8.87 x 10-12 F/m) is
0.036 nm
0.6 μm
3 mm
1.5 mm
Answer: Option
Explanation:

.

Discussion:
1 comments Page 1 of 1.

Carlo said:   7 years ago
W^2=(.2*2*16*8.87x10^-12)/(1.6x10^-19*10^21),
W= √3.53686x10^-13,
W=0.5947um.

Thus W is almost equal to 0.6um.

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