Interface characterization of fully depleted SOI MOSFETs by the dynamic transconductance technique
- 1 August 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Electron Device Letters
- Vol. 12 (8) , 430-432
- https://doi.org/10.1109/55.119155
Abstract
The dynamic transconductance technique of MOSFET interface characterization is adapted to fully depleted silicon-on-insulator (SOI) transistors and is used to measure the interface-state density energy profiles in several SIMOX (separation by implanted oxygen) transistors. By making measurements first with the current flowing through the channel under measurement and then through the opposite channel, much of the energy gap (from accumulation to well into weak inversion) can be probed. Remarkably high sensitivity is achieved by utilizing the imaginary part of the dynamic transconductance. Measured interface trap densities were in the region of approximately 10/sup 10/-10/sup 11/ eV/sup -1/-cm/sup -2/.Keywords
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