Re: tunneling
hi all,
tunneling is the phenomenon when the barrier is smaller than
the wavelength of electron,
hence electron crosses the barrier leading to nonlinear behaviour.
thanx.
Added after 4 minutes:
hi all,
it is not a defect.... it actually leads to negative resistance because the transistor will not obey
eber-moll equation and hence this excess charge can be supported only until a particular level
after which the current drops leading to negative resistance...
for more detail refer to analog cmos design text book.
thanx.