Depletion MOSFET Flicker Noise

[ZekeR]

Hi all,

When operating in saturation, subthreshold, or weak inversion, which MOSFET type has lower flicker noise: enhancement-mode or depletion-mode? Intuitively, the depletion FET should have lower flicker noise because the E-field within the gate oxide pushes carriers away from interfacial traps at the surface. Is there any data or other solid information on this topic?

Thanks

 

[dick_freebird]

You might expand your searching to include "buried channel
MOSFET" which has been around for many decades, and
for the reason you're after.