Electronic Devices - Special-Purpose Diodes - Discussion
Discussion Forum : Special-Purpose Diodes - General Questions (Q.No. 27)
27.
A tunnel diode is used
Discussion:
2 comments Page 1 of 1.
Sunil said:
9 years ago
@Arathy.
Tunnelling is used in Zener diode in which we. B and c. B overlap and electron from v. b band directly go into c. b. Although we know in Zener voltage is less and a depletion region is also narrow but we apply slightly more voltage so as there will be more tilt or slope to the energy level Vo> Eg ultimately we can say tunnel diode work like metal and as a temp. Increase e-hole pair creates in v. b and more e cross narrow depletion region so resistance decrease.
Tunnelling is used in Zener diode in which we. B and c. B overlap and electron from v. b band directly go into c. b. Although we know in Zener voltage is less and a depletion region is also narrow but we apply slightly more voltage so as there will be more tilt or slope to the energy level Vo> Eg ultimately we can say tunnel diode work like metal and as a temp. Increase e-hole pair creates in v. b and more e cross narrow depletion region so resistance decrease.
Arathy said:
1 decade ago
Can anyone explain it please ?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers