M. Okandan, B. Draper, K. Wessendorf, S. Pearson, R. Young
{"title":"Retinal implant electrode arrays with 10V SOI CMOS circuitry","authors":"M. Okandan, B. Draper, K. Wessendorf, S. Pearson, R. Young","doi":"10.1109/SOI.2005.1563587","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563587","url":null,"abstract":"The interface between stimulation electrodes (which deliver electrical pulses) and retinal tissue is the most important interface in the retinal prosthesis application. As a member of the DOE Artificial Retina project, we have been developing a micromachined electrode array to address the critical mechanical and electrical coupling at this interface. Our design incorporates mechanical springs at each electrode site to allow controlled mechanical contact between the electrode array and the retinal surface, as well as built-in 10V capable CMOS electronics to handle routing of signals and to monitor integrated sensors. This process is also directed towards addressing other MEMS sensor/actuator systems that require higher voltages (/spl sim/10V).","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"2001 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128300230","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}
R. Ionita, M. Sanduleanu, E. Stikvoort, A. Vladimirescu
{"title":"A 1V, Ka Band Prescaler with VTControl in 90nm CMOS SOI","authors":"R. Ionita, M. Sanduleanu, E. Stikvoort, A. Vladimirescu","doi":"10.1109/SOI.2005.1563527","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563527","url":null,"abstract":"This paper presents a static frequency divider in a 90nm PD CMOS SOI process. The divider uses a novel D-latch topology and has an operation range of 8 to 28GHz with maximum sensitivity tuning of plusmn3GHz around 22GHz. The D-latches were implemented with NMOS transistors in R-NMOS logic. A new method is proposed for tuning the sensitivity curve of the prescaler by controlling the threshold voltage of the transistors. The VT spread due to process variations is compensated too. The VT control shows an improvement of the prescaler sensitivity with forward body-biasing voltages and an increase of the frequency range with reverse body-biasing voltages. At maximum operating frequency, the power consumption of the divider is 60mW (1V supply voltage) and the active area, including buffers, is 350 times 400mum2","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128605757","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":"Analysis of drain-to-body band-to-band tunneling in double gate MOSFET","authors":"H. Ananthan, A. Bansal, K. Roy","doi":"10.1109/SOI.2005.1563573","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563573","url":null,"abstract":"An analytical model is proposed for drain-to-body band-to-band tunneling leakage in nanoscale symmetric and asymmetric double-gate MOS devices. The model is used to analyze the impact of technology and circuit parameters, and suggest ways of minimizing this leakage.","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128402787","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}
G. Ilicali, W. Weber, W. Rosner, L. Dreeskornfeld, J. Hartwich, J. Kretz, T. Lutz, J. Mazellier, M. Stadele, M. Specht, J. R. Luyken, E. Landgraf, F. Hofmann, L. Risch, R. Kasmaier, W. Hansch
{"title":"Planar double gate transistors with asymmetric independent gates","authors":"G. Ilicali, W. Weber, W. Rosner, L. Dreeskornfeld, J. Hartwich, J. Kretz, T. Lutz, J. Mazellier, M. Stadele, M. Specht, J. R. Luyken, E. Landgraf, F. Hofmann, L. Risch, R. Kasmaier, W. Hansch","doi":"10.1109/SOI.2005.1563562","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563562","url":null,"abstract":"Planar double-gate field effect transistors with asymmetric (p++/n++) independent gates down to 55nm physical gate lengths are successfully fabricated. A fabrication concept, epi-before-bonding, is introduced and demonstrated to be highly successful in achieving ultra-thin and planar Si bodies. Various modes of operations are extensively analyzed and compared to 2D simulations. It is experimentally shown that specific off-current requirements can be fulfilled with conventional poly-Si gates.","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128515566","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":"Device design considerations for nanoscale double and triple gate FinFETs","authors":"A. Kranti, G. A. Armstrong","doi":"10.1109/SOI.2005.1563549","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563549","url":null,"abstract":"Based on 3D device simulations, we report performance assessment of TG and DG FinFETs for HP, LOP and LSTP logic technologies for the 65 nm technology node. An investigation of s, d, /spl phi//sub m/ and AR shows that DG devices offer higher I/sub on/ (mA/mm) while achieving acceptable values of I/sub off/ (nAJ//spl mu/m) and thus offer greater design flexibility in selecting device parameters as compared to TG FinFETs to meet ITRS targets for all the three logic technologies. TG and DG FinFETs should be designed with lower aspect ratios (1 /spl sim/ 2), along with lower values of fin height and thickness to achieve ITRS projections. If a target value for spacer and doping gradient is set to (0.5)L and 7 nm/dec for both TG and DG FinFETs then EOT and gate workfunction need to be adjusted to achieve the ITRS targets. TG and DG FinFETs with gate workfunction values in the range of 4.62 - 4.72 eV are more likely to meet ITRS targets for HP and LOP technologies whereas higher workfunctions /spl sim/ 4.82 eV would be more suitable for LSTP applications. A spacer width of (0.25)L with a doping gradient of 7 nm/dec would be more suitable for TG FinFETs for achieving ITRS targets for 65 nm and 45 nm nodes, whereas a spacer width of (0.5)L with the same doping gradient would be more appropriate for DG FinFETs. The present work provides valuable design insights in the performance of TG and DG FinFETs and serves as a tool for optimizing device and technological parameters for 65 nm node and below.","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114151132","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":"Subterranean photonics using SIMOX 3-D sculpting for optoelectronic integration in silicon-on-insulator","authors":"T. Indukuri, P. Koonath, B. Jalali","doi":"10.1109/SOI.2005.1563585","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563585","url":null,"abstract":"Three-dimensional optoelectronic integration can be achieved in SOI wafers using the process of SIMOX 3D sculpting. Micro-resonators, with unloaded Q of 8000 and extinction ratio >20 dB, were fabricated in a buried silicon layer and MOS transistor structures were fabricated on the surface silicon layer using a patterned SIMOX process.","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132734734","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":"Independent gate skewed logic in double-gate SOI technology","authors":"T. Cakici, H. Mahmoodi, S. Mukhopadhyay, K. Roy","doi":"10.1109/SOI.2005.1563543","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563543","url":null,"abstract":"Independent gate control of double gate SOI devices (D. Fried, 2003 and L. Mathew, 2004) can be effectively exploited to improve performance and reduce power in sub-50nm circuits. In this paper, we have proposed a skewed logic style using independent gate operation of double gate SOI devices.","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130050896","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":"Unusual gate current transient behavior in SOI MOSFETs","authors":"M. Bawedin, S. Cristoloveanu, D. Flandre","doi":"10.1109/SOI.2005.1563536","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563536","url":null,"abstract":"We report unusual gate current variations with gate bias and time in accumulation regime. Measurements and simulations show the importance of the time-dependent floating body potential in both partially and fully depleted SOI MOSFETs. These variations during front-gate voltage scan and the resulting transient gate current are discussed as a combination of several mechanisms such as capacitive coupling, SRH generation, band-to-band tunneling and impact ionization. The gate current behavior is important for EEPROMs and depends on the device geometry and operating conditions.","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123202738","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}
M. Si Moussa, C. Pavageau, D. Lederer, L. Picheta, F. Danneville, J. Russat, N. Fel, J. Raskin, D. Vanhoenacker-Janvier
{"title":"An investigation of temperature effects on CPW and MSL on SOI substrate for RF applications","authors":"M. Si Moussa, C. Pavageau, D. Lederer, L. Picheta, F. Danneville, J. Russat, N. Fel, J. Raskin, D. Vanhoenacker-Janvier","doi":"10.1109/SOI.2005.1563537","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563537","url":null,"abstract":"Losses of microstrip line and coplanar waveguide made on HR and STD SOI wafers were analyzed with respect to temperature. MSL allows the use of STD substrate because the back ground plane shields the Si substrate. MSL can then be an interesting topology if the losses can be lowered to the same level than CPW made on HR SOI or SOS. For the CPW, the losses are of two kinds: conductor losses, due to the metal resistivity, and substrate losses, due to the coupling between the line and the substrate. These results demonstrate the feasibility and practical applicability of different passive structures in circuits design for both room and high temperature applications. Due to the rapid increase in the number of metallic interconnects, the top level metals are situated further away from the SOI substrate as the technology scales, thus reducing the substrate losses for CPW and widen the metallic strip for MSL. In a near future, 12 metal levels are available and enable using 5 times wider strips for MSL and thus reduce the losses by a factor of 3 making MSL as a very promising structure for RF design for the next technological node.","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115362638","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":"V/sub th/ control of t/sub pd/-degradation-free FD SOI MOSFET with extremely thin BOX using variable body-factor scheme","authors":"T. Ohtou, K. Yokoyama, T. Nagumo, T. Hiramoto","doi":"10.1109/SOI.2005.1563551","DOIUrl":"https://doi.org/10.1109/SOI.2005.1563551","url":null,"abstract":"A new bias scheme of variable-/spl gamma/ FD SOI MOSFET is proposed. Using the scheme, almost no degradation of t/sub pd/ in the active-state is achieved even in the t/sub BOX/ of a sub-10 nm while I/sub off/ is sufficiently suppressed in the standby-state. Reducing the inter-die V/sub th/ fluctuation on a wide V/sub sub/ range in the active-state is realized. This device scheme is also well applicable to 3D channel MOSFETs including a FinFET.","PeriodicalId":116606,"journal":{"name":"2005 IEEE International SOI Conference Proceedings","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114965429","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}