{"title":"Defect-based compact model for circuit reliability simulation in advanced CMOS technologies","authors":"I. Esqueda, H. Barnaby","doi":"10.1109/IIRW.2013.6804155","DOIUrl":"https://doi.org/10.1109/IIRW.2013.6804155","url":null,"abstract":"A defect-based compact modeling approach for circuit reliability simulation based on surface potential calculations is presented. The modeling approach captures the bias-dependence of stress-induced defects such as (bulk) oxide-trapped charge and interface traps that cannot be described by typical fixed voltage shift models (i.e., threshold voltage, Vth-based models). The defect dynamic charge contribution is modeled under non-equilibrium conditions and for all regions of operation (i.e. from weak to strong inversion) and not just at the threshold (as in Vth-based models). The modeled is verified with 2-D TCAD simulations that incorporate oxide trapped charge and interface trap densities. Spice-level simulations of ring oscillators and SRAM cells reveal inaccuracies in describing aging effects when utilizing typical fixed voltage shift models as compared to the presented defect-based compact modeling approach.","PeriodicalId":287904,"journal":{"name":"2013 IEEE International Integrated Reliability Workshop Final Report","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114853146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Franco, B. Kaczer, P. Roussel, M. Toledano-Luque, P. Weckx, T. Grasser
{"title":"Relevance of non-exponential single-defect-induced threshold voltage shifts for NBTI variability","authors":"J. Franco, B. Kaczer, P. Roussel, M. Toledano-Luque, P. Weckx, T. Grasser","doi":"10.1109/IIRW.2013.6804161","DOIUrl":"https://doi.org/10.1109/IIRW.2013.6804161","url":null,"abstract":"We report statistical NBTI datasets of nanoscale Si/SiON pMOSFETs. Weibull-distributed single-defect-induced ΔV<sub>th</sub> are observed in the NBTI relaxation transients, in contrast with literature reports of exponential distribution. We discuss the (ir)relevance of a correct description of the single-defect-induced ΔV<sub>th</sub> steps for describing the total BTI induced ΔV<sub>th</sub> distribution. We show that the BTI induced V<sub>th</sub> variance can be correctly predicted based on time-zero V<sub>th0</sub>-variability only.","PeriodicalId":287904,"journal":{"name":"2013 IEEE International Integrated Reliability Workshop Final Report","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123357401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"(Invited) Modeling reliability in GaN HEMTs","authors":"D. Vasileska","doi":"10.1109/IIRW.2013.6804150","DOIUrl":"https://doi.org/10.1109/IIRW.2013.6804150","url":null,"abstract":"In this paper we present modeling reliability concerns in GaN HEMT technology. A theoretical model was developed to model the piezoelectric polarization charge dependence on the applied gate voltage. To model self-heating effects, an elec-tro-thermal device simulator was developed that couples the Monte Carlo-Poisson solver with the energy balance solver for the acoustic and optical phonons. Current collapse was explained as charging the surface states due the Paul-Frenkel tunneling from the gate into the gate to drain extension. Excellent agreement is obtained between the theoretical calculations and the experimental data of the unstressed and the stressed devices with this model.","PeriodicalId":287904,"journal":{"name":"2013 IEEE International Integrated Reliability Workshop Final Report","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121738011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}