dc.creator | Li, Kan | |
dc.date.accessioned | 2022-07-12T16:45:47Z | |
dc.date.created | 2022-06 | |
dc.date.issued | 2022-06-02 | |
dc.date.submitted | June 2022 | |
dc.identifier.uri | http://hdl.handle.net/1803/17526 | |
dc.description.abstract | In this dissertation, radiation effects and low-frequency noise are studied in advanced FinFETs. Firstly, we evaluate the single-event effects on devices with the promising InGaAs channel material and highly-scaled fin widths (sub-10 nm) through pulsed-laser measurements. Higher peak currents and greater charge collection are observed in wider fin devices as a result of larger active volumes. The amplitudes of the SETs and the collected charge also increase with Vds due to the enhancement of the electric field along the channel; the transient tail increases as the overdrive voltage increases. Charge collection is influenced strongly by the shunt effect and parasitic bipolar effect. Secondly, we investigate total-ionizing-dose (TID) response and low-frequency noise in bulk Si FinFETs with/without through-silicon vias (TSVs) integration. TSVs negligibly impact charge trapping properties of gate/field oxides during TID, or the 1/f noise results, and nMOS and pMOS devices show opposite border-trap energy distribution trends at room temperature. Temperature dependence of 1/f noise is also explored in both device types with SiO2/HfO2 gate dielectrics. The nMOSFET 1/f noise generally decreases as temperature increases, with three prominent individual defect-related peaks detected, while pMOSFET 1/f noise generally increases with increasing temperature with no peaks observed. The gate-voltage dependence of noise at different temperatures shows a qualitatively consistent result with that inferred from Dutta-Horn analysis of the temperature dependence of the noise. | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | |
dc.subject | Single-event effects, total-ionizing-dose effect, 1/f noise, advanced FinFETs | |
dc.title | Laser-induced single-event effects, total-ionizing-dose effects, and low-frequency noise in advanced FinFETs | |
dc.type | Thesis | |
dc.date.updated | 2022-07-12T16:45:48Z | |
dc.contributor.committeeMember | Fleetwood, Daniel M | |
dc.contributor.committeeMember | Reed, Robert A | |
dc.contributor.committeeMember | Zhang, Enxia | |
dc.contributor.committeeMember | Pantelides, Sokrates T | |
dc.contributor.committeeMember | Walker, Greg | |
dc.type.material | text | |
thesis.degree.name | PhD | |
thesis.degree.level | Doctoral | |
thesis.degree.discipline | Interdisciplinary Materials Science | |
thesis.degree.grantor | Vanderbilt University Graduate School | |
local.embargo.terms | 2022-12-01 | |
local.embargo.lift | 2022-12-01 | |
dc.creator.orcid | 0000-0002-6704-3991 | |
dc.contributor.committeeChair | Schrimpf, Ronald D | |