期刊
IEEE ELECTRON DEVICE LETTERS
卷 36, 期 4, 页码 312-314出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2015.2399891
关键词
Atomic layer deposition; lanthanum silicate; mobility; SiC
资金
- Toyota Motor Corporation
We report high mobility Si-face 4H-SiC MOSFET results via a novel interface engineering technique using a gate-stack consisting of lanthanum silicate (LaSiOx) and atomic layer deposited SiO2. Peak field effect mobility of 132.6 cm(2)/V . s has been achieved while maintaining a positive threshold voltage (3.1 V). From the peak field effect mobility's dependence on measurement temperatures, it has been found that the mobility of La containing MOSFET is limited by phonon scattering.
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