Abstract
Comprehensive bias temperature instability (BTI) reliability for In0.7Ga0.3As quantum-well (QW) MOSFETs with different gate stacks were investigated in this paper. The detailed mechanism of ΔV T degradation in QW In0.7Ga0.3As MOSFETs was explored to analyze effective barrier height, near-interface traps and bulk traps in the high-κ layers. The In0.7Ga0.3As QW MOSFET with fluorine (F) treatment showed slight improvement in the BTI characteristics, which could be explained by a reduction in the dominant defects by incorporating F atoms into near-interface trap states. This work reveals the necessity of developing a high-quality high-κ gate stack with lower values of D it and N BT.
| Original language | English |
|---|---|
| Article number | 100308 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 57 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2018 |