Gate quality Si3N4/Si/<i>n</i>-In0.53Ga0.47As metal-insulator-semiconductor capacitors

Z. Wang, David Mui, A. L. Demirel, D. Biswas, J. Reed, H. Morkoç̌

Applied Physics Letters · 1992 · 19 citations · 6 references

Concepts

Abstract

In this letter, we report on gate quality Si3N4/Si/n-In0.53Ga0.47As capacitors representing significant improvement over that which has been previously obtained. These capacitors are formed by in situ nitride and Si layer deposition on as-grown molecular-beam epitaxy structure and are characterized by a small frequency dispersion, small hysteresis, a flat band voltage close to zero, and a minimum interface trap density of 2.4×1011 eV−1 cm−2.

References

6