Titolo: Low Substrate Temperature Modeling Outlook of Scaled n-MOSFET (Synthesis Lectures on Emerging Engineering Technologies)
Editore: Morgan & Claypool Publishers
Data di pubblicazione: 2018
Lingua: Inglese
ISBN 10: 1681733854
ISBN 13: 9781681733852
Rilegatura: paperback
Condizione: Very Good

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Riassunto

Low substrate/lattice temperature (< 300 k) operation of n-mosfet has been effectively studied by device research and integration professionals in cmos logic and analog products from the early 1970s. the author of this book previously composed an e-book in this area where he and his co-authors performed original simulation and modeling work on mosfet threshold voltage and demonstrated that through efficient manipulation of threshold voltage values at lower substrate temperatures, superior degrees of reduction of subthreshold and off-state leakage current can be implemented in high-density logic and microprocessor chips fabricated in a silicon die. in this book, the author explores other device parameters such as channel inversion carrier mobility and its characteristic evolution as temperature on the die varies from 100?300 k. channel mobility affects both on-state drain current and subthreshold drain current and both drain current behaviors at lower temperatures have been modeled accurately and simulated for a 1 ??m channel length n-mosfet. in addition, subthreshold slope which is an indicator of how speedily the device drain current can be switched between near off current and maximum drain current is an important device attribute to model at lower operating substrate temperatures. this book is the first to illustrate the fact that a single subthreshold slope value which is generally reported in textbook plots and research articles, is erroneous and at lower gate voltage below inversion, subthreshold slope value exhibits a variation tendency on applied gate voltage below threshold, i.e., varying depletion layer and vertical field induced surface band bending variations at the mosfet channel surface. the author also will critically review the state-of-the art effectiveness of certain device architectures presently prevalent in the semiconductor industry below 45 nm node from the perspectives of device physical analysis at lower substrate temperature operating conditions. the book concludes with an emphasis on modeling simulations, inviting the device professionals to meet the performance bottlenecks emanating from inceptives present at these lower temperatures of operation of today's 10 nm device architectures. 300="" k)="" operation="" of="" n-mosfet="" has="" been="" effectively="" studied="" by="" device="" research="" and="" integration="" professionals="" in="" cmos="" logic="" and="" analog="" products="" from="" the="" early="" 1970s.="" the="" author="" of="" this="" book="" previously="" composed="" an="" e-book="" in="" this="" area="" where="" he="" and="" his="" co-authors="" performed="" original="" simulation="" and="" modeling="" work="" on="" mosfet="" threshold="" voltage="" and="" demonstrated="" that="" through="" efficient="" manipulation="" of="" threshold="" voltage="" values="" at="" lower="" substrate="" temperatures,="" superior="" degrees="" of="" reduction="" of="" subthreshold="" and="" off-state="" leakage="" current="" can="" be="" implemented="" in="" high-density="" logic="" and="" microprocessor="" chips="" fabricated="" in="" a="" silicon="" die.="" in="" this="" book,="" the="" author="" explores="" other="" device="" parameters="" such="" as="" channel="" inversion="" carrier="" mobility="" and="" its="" characteristic="" evolution="" as="" temperature="" on="" the="" die="" varies="" from="" 100?300="" k.="" channel="" mobility="" affects="" both="" on-state="" drain="" current="" and="" subthreshold="" drain="" current="" and="" both="" drain="" current="" behaviors="" at="" lower="" temperatures="" have="" been="" modeled="" accurately="" and="" simulated="" for="" a="" 1="" m="" channel="" length="" n-mosfet.="" in="" addition,="" subthreshold="" slope="" which="" is="" an="" indicator="" of="" how="" speedily="" the="" device="" drain="" current="" can="" be="" switched="" between="" near="" off="" current="" and="" maximum="" drain="" current="" is="" an="" important="" device="" attribute="" to="" model="" at="" lower="" operating="" substrate="" temperatures.="" this="" book="" is="" the="" first="" to="" illustrate="" the="" fact="" that="" a="" single="" subthreshold="" slope="" value="" which="" is="" generally="" reported="" in="" textbook="" plots="" and="" research="" articles,="" is="" erroneous="" and="" at="" lower="" gate="" voltage="" below="" inversion,="" subthreshold="" slope="" value="" exhibits="" a="" variation="" tendency="" on="" applied="" gate="" voltage="" below="" threshold,="" i.e.,="" varying="" depletion="" layer="" and="" vertical="" field="" induced="" surface="" band="" bending="" variations="" at="" the="" mosfet="" channel="" surface.="" the="" author="" also="" will="" critically="" review="" the="" state-of-the="" art="" effectiveness="" of="" certain="" device="" architectures="" presently="" prevalent="" in="" the="" semiconductor="" industry="" below="" 45="" nm="" node="" from="" the="" perspectives="" of="" device="" physical="" analysis="" at="" lower="" substrate="" temperature="" operating="" conditions.="" the="" book="" concludes="" with="" an="" emphasis="" on="" modeling="" simulations,="" inviting="" the="" device="" professionals="" to="" meet="" the="" performance="" bottlenecks="" emanating="" from="" inceptives="" present="" at="" these="" lower="" temperatures="" of="" operation="" of="" today's="" 10="" nm="" device="">

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