
VerilogA: Present Status and Guidelines
19 Jun 2013   Contributor(s):: Geoffrey Coram
VerilogA is the standard language for compact model development and implementation.This talk provides some background on the rationale for and development of VerilogA,summarizes the current status of the language, and provides a short introduction andsome tips for writing good compact models...

ECE 695A Lecture 37: Radiation Induced Damage – An overview
20 Apr 2013   Contributor(s):: Muhammad Alam
Outline:Introduction and short history of radiation damageRadiation damage in various types of componentsSources of radiationA basic calculation and simulation approachesConclusions

ECE 695A Lecture 37R: Review Questions
20 Apr 2013   Contributor(s):: Muhammad Alam
Review Questions:Why is SOI more radiation hard compared to bulk devices? What do you feel about radiation hardness of FINFET?What type of radiation issues could arise for thinbody devices like FINFET?What is error correction code? Why does it correct for MBU?What is the difference between SEE...

ECE 695A Lecture 33: Model Selection/Goodness of Fit
18 Apr 2013   Contributor(s):: Muhammad Alam
Outline:The problem of matching data with theoretical distributionParameter extractions: Moments, linear regression, maximum likelihoodGoodness of fit: Residual, Pearson, Cox, AkikaConclusion

ECE 695A Lecture 33R: Review Questions
18 Apr 2013   Contributor(s):: Muhammad Alam
Review Questions:With higher number of model parameters, you can always get a good fit – why should you minimize the number of parametersLeast square method is a subset of maximum likelihood approach to data fitting. Is this statement correct?What aspect of the distribution function does...

ECE 695A Lecture 32R: Review Questions
17 Apr 2013   Contributor(s):: Muhammad Alam
Review Questions:Why do people use Normal, lognormal, Weibull distributions when they do not know the exact physical distribution?What is the problem of using empirical distributions? What are the advantages?If you must choose an empirical distribution, what should be your criteria? (Nos. of...

ECE 695A Lecture 32: Physical vs. Empirical Distribution
17 Apr 2013   Contributor(s):: Muhammad Alam
Outline:Physical Vs. empirical distributionProperties of classical distribution functionMomentbased fitting of dataConclusions

ECE 695A Lecture 31R: Review Questions
15 Apr 2013   Contributor(s):: Muhammad Alam
Review Questions:What is the difference between parametric estimation vs. nonparametric estimation?What principle did Tacho Brahe’s approach assume?What is the difference between population and sample? When we collect data for TDDB or NBTI, what type of data are we collecting?What problem does...

ECE 695A Lecture 31: Collecting and Plotting Data
15 Apr 2013   Contributor(s):: Muhammad Alam
Outline:Origin of data, Field Acceleration vs. Statistical InferenceNonparametric informationPreparing data for projection: Hazen formula Preparing data for projection: Kaplan formulaConclusion

ECE 695A Lecture 31A: Appendix  Bootstrap Method Introduction
15 Apr 2013   Contributor(s):: Muhammad Alam

ECE 695A Lecture 30R: Review Questions
08 Apr 2013   Contributor(s):: Muhammad Alam
Outline:What is the difference between extrinsic vs. intrinsic breakdown?Does gas dielectric have extrinsic breakdown? Why or why not?What does ESD damage and the plasma damage to thin oxides?Can you explain the physical meaning of infant mortality ? How does it relate to yield of semiconductor...

ECE 695A Lecture 30: Breakdown in Dielectrics with Defects
08 Apr 2013   Contributor(s):: Muhammad Alam
Outline:IntroductionTheory of preexisting defects: Thin oxidesTheory of preexisting defects: thick oxidesConclusions

ECE 695A Lecture 29R: Review Questions
08 Apr 2013   Contributor(s):: Muhammad Alam
Review Questions:Mention a few differences between thick and thin oxide breakdown.Is breakdown in thick oxides contact dominated? Can I use AHI theory here?How does the Paschen’s cascade initiate?What does it mean to have a fractal dimension of 1.7 for 2D breakdown? Why does the number suggest...

ECE 695A Lecture 29A: Appendix  Dimension of a Surface
08 Apr 2013   Contributor(s):: Muhammad Alam

ECE 695A Lecture 28: Circuit Implications of Dielectric Breakdown
08 Apr 2013   Contributor(s):: Muhammad Alam
Outline:Part 1  Understanding PostBD FET behaviorBD position determinationHard and Soft BD in FETsDistinguishing leakage and intrinsic FET parameters shiftsPart 2  Impact of breakdown on digital circuit operationBD in ring oscillatorBDinSR AMcellTiming, BD into soft node

ECE 695A Lecture 29: Breakdown of Thick Dielectrics
08 Apr 2013   Contributor(s):: Muhammad Alam
Outline:IntroductionSpatial and temporal dynamics during breakdownBreakdown in bulk oxides: puzzleConclusions

ECE 695A Lecture 27R: Review Questions
29 Mar 2013   Contributor(s):: Muhammad Alam

ECE 695A Lecture 261: Statistics of Soft Breakdown via Methods of Markov Chains
28 Mar 2013   Contributor(s):: Muhammad Alam
Outline:Spatial vs. Temporal correlationTheory of correlated Dielectric BreakdownExcess leakage as a signature of correlated BDConclusions

ECE 695A Lecture 262: Statistics of Soft Breakdown (Breakdown Position correlation)
28 Mar 2013   Contributor(s):: Muhammad Alam
Outline:Position and time correlation of BD spotHow to determine the position of the BD SpotPosition correlation in BD spotsWhy is localization so weak?Conclusions

ECE 695A Lecture 26R: Review Questions
28 Mar 2013   Contributor(s):: Muhammad Alam