Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241853
D. Veksler, G. Bersuker, H. Madan, L. Vandelli, M. Minakais, K. Matthews, C. Young, S. Datta, C. Hobbs, P. Kirsch
A set of measurement techniques- SILC, low frequency noise, and pulse CV - combined with the physical descriptions of the processes associated with these measurements were applied to study pre-existing and stress generated traps in the SiO2/HfO2 gate stacks. By correlating the analysis results obtained by these techniques, the defects in the high-k dielectric and interfacial layer were identified. The stress-induced degradation of the high-k gate stack was found to be caused primarily by the trap generation in the SiO2 interfacial layer.
{"title":"Multi-technique study of defect generation in high-k gate stacks","authors":"D. Veksler, G. Bersuker, H. Madan, L. Vandelli, M. Minakais, K. Matthews, C. Young, S. Datta, C. Hobbs, P. Kirsch","doi":"10.1109/IRPS.2012.6241853","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241853","url":null,"abstract":"A set of measurement techniques- SILC, low frequency noise, and pulse CV - combined with the physical descriptions of the processes associated with these measurements were applied to study pre-existing and stress generated traps in the SiO2/HfO2 gate stacks. By correlating the analysis results obtained by these techniques, the defects in the high-k dielectric and interfacial layer were identified. The stress-induced degradation of the high-k gate stack was found to be caused primarily by the trap generation in the SiO2 interfacial layer.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115693342","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241772
S. Fujii, R. Fujitsuka, K. Sekine, H. Kusai, K. Sakuma, M. Koyama
We investigate the mechanism for the data retention degradation caused by program/erase (P/E) cycling in MONOS memories, using the carrier separation measurement to identify the carrier type of Stress-Induced Leakage Current (SILC). It is thereby found that SILC is composed mainly of holes for the MONOS with less Si-rich SiN layer (hole SILC). A clear correlation is also discovered between hole SILC and interface states generated during P/E cycle. We also discuss the mechanism of the degradation by hole SILC of the data retention characteristics of MONOS devices.
{"title":"Impact of program/erase stress induced hole current on data retention degradation for MONOS memories","authors":"S. Fujii, R. Fujitsuka, K. Sekine, H. Kusai, K. Sakuma, M. Koyama","doi":"10.1109/IRPS.2012.6241772","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241772","url":null,"abstract":"We investigate the mechanism for the data retention degradation caused by program/erase (P/E) cycling in MONOS memories, using the carrier separation measurement to identify the carrier type of Stress-Induced Leakage Current (SILC). It is thereby found that SILC is composed mainly of holes for the MONOS with less Si-rich SiN layer (hole SILC). A clear correlation is also discovered between hole SILC and interface states generated during P/E cycle. We also discuss the mechanism of the degradation by hole SILC of the data retention characteristics of MONOS devices.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115763772","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241935
M. Toledano-Luque, B. Kaczer, E. Simoen, R. Degraeve, J. Franco, P. Roussel, T. Grasser, G. Groeseneken
The correlation of discrete gate and drain current fluctuations is revealed in nanoscaled SiON pFETs and nFETs, demonstrating that discrete trapping and detrapping events in the same single states are responsible of both ID and IG random telegraph noise (RTN). The high and low gate current IG-RTN levels are independent of temperature but the switching rates thermally activated indicating that the trapping and detrapping events are consistent with nonradiative multiphonon theory.
{"title":"Correlation of single trapping and detrapping effects in drain and gate currents of nanoscaled nFETs and pFETs","authors":"M. Toledano-Luque, B. Kaczer, E. Simoen, R. Degraeve, J. Franco, P. Roussel, T. Grasser, G. Groeseneken","doi":"10.1109/IRPS.2012.6241935","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241935","url":null,"abstract":"The correlation of discrete gate and drain current fluctuations is revealed in nanoscaled SiON pFETs and nFETs, demonstrating that discrete trapping and detrapping events in the same single states are responsible of both ID and IG random telegraph noise (RTN). The high and low gate current IG-RTN levels are independent of temperature but the switching rates thermally activated indicating that the trapping and detrapping events are consistent with nonradiative multiphonon theory.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117219265","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241849
D. Ioannou, S. Mittl, D. Brochu
The impact of Bias Temperature Instability stress and poststress high temperature anneal (bake) effects on the performance of Ring Oscillator (RO) circuits is investigated for advanced node High-k Metal Gate (HKMG) and Oxynitride (SiON) based Silicon-On-Insulator (SOI) CMOS technologies. Examination of the circuit response (in terms of % frequency degradation) to a wide range of stress bias/temperature conditions reveals a distinct difference between the two technologies with respect to the voltage acceleration of frequency degradation. This difference is explained in view of the PBTI/NBTI voltage acceleration behaviour and indicates that PBTI dominates HKMG RO performance degradation. Post burn-in bake is found to be equally effective in recovering the burn-in induced frequency degradation in both HKMG and Oxynitride ROs. Finally, a simple model is proposed to predict net RO performance degradation from a combined burn-in/post-burn-in bake as a useful guideline for optimizing product burn-in testing.
{"title":"Burn-in stress induced BTI degradation and post-burn-in high temperature anneal (Bake) effects in advanced HKMG and oxynitride based CMOS ring oscillators","authors":"D. Ioannou, S. Mittl, D. Brochu","doi":"10.1109/IRPS.2012.6241849","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241849","url":null,"abstract":"The impact of Bias Temperature Instability stress and poststress high temperature anneal (bake) effects on the performance of Ring Oscillator (RO) circuits is investigated for advanced node High-k Metal Gate (HKMG) and Oxynitride (SiON) based Silicon-On-Insulator (SOI) CMOS technologies. Examination of the circuit response (in terms of % frequency degradation) to a wide range of stress bias/temperature conditions reveals a distinct difference between the two technologies with respect to the voltage acceleration of frequency degradation. This difference is explained in view of the PBTI/NBTI voltage acceleration behaviour and indicates that PBTI dominates HKMG RO performance degradation. Post burn-in bake is found to be equally effective in recovering the burn-in induced frequency degradation in both HKMG and Oxynitride ROs. Finally, a simple model is proposed to predict net RO performance degradation from a combined burn-in/post-burn-in bake as a useful guideline for optimizing product burn-in testing.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125003396","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241866
S. Mittl, A. Swift, E. Wu, D. Ioannou, Fen Chen, G. Massey, N. Rahim, M. Hauser, P. Hyde, J. Lukaitis, S. Rauch, S. Saroop, Yanfeng Wang
The reliability characterization of a high performance 32nm SOI CMOS technology featuring gate first High-K Metal Gate and embedded High-K Metal Fill DRAM is presented. This technology features high performance 0.9V thin dielectric devices and 1.5V thick dielectric I/O devices. Included are results of Hot Carrier, Bias Temperature, Planar and Trench Node TDDB, Gate to Contact, silicon eFUSE, SER, SRAM and Logic circuit reliability evaluations.
介绍了采用栅极优先高k金属栅极和嵌入式高k金属填充DRAM的高性能32nm SOI CMOS技术的可靠性特性。该技术具有高性能0.9V薄介质器件和1.5V厚介质I/O器件。包括热载流子、偏置温度、平面和沟槽节点TDDB、栅极到触点、硅eFUSE、SER、SRAM和逻辑电路可靠性评估的结果。
{"title":"Reliability characterization of 32nm high-k metal gate SOI technology with embedded DRAM","authors":"S. Mittl, A. Swift, E. Wu, D. Ioannou, Fen Chen, G. Massey, N. Rahim, M. Hauser, P. Hyde, J. Lukaitis, S. Rauch, S. Saroop, Yanfeng Wang","doi":"10.1109/IRPS.2012.6241866","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241866","url":null,"abstract":"The reliability characterization of a high performance 32nm SOI CMOS technology featuring gate first High-K Metal Gate and embedded High-K Metal Fill DRAM is presented. This technology features high performance 0.9V thin dielectric devices and 1.5V thick dielectric I/O devices. Included are results of Hot Carrier, Bias Temperature, Planar and Trench Node TDDB, Gate to Contact, silicon eFUSE, SER, SRAM and Logic circuit reliability evaluations.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125917467","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241805
X. Federspiel, D. Angot, M. Rafik, F. Cacho, A. Bajolet, N. Planes, D. Roy, M. Haond, F. Arnaud
In this paper, we present TDDB, HCI and BTI reliability characterization of Nfet and Pfet devices issued from FDSOI and bulk 28nm technologies. 28nm FDSOI devices achieve 32% improved performance, 40% reduced power consumption and improved matching. From device level tests, 28nm FDSOI also demonstrates intrinsic reliability behavior similar to 28 bulk devices, giving confidence in the robustness of this technology.
{"title":"28nm node bulk vs FDSOI reliability comparison","authors":"X. Federspiel, D. Angot, M. Rafik, F. Cacho, A. Bajolet, N. Planes, D. Roy, M. Haond, F. Arnaud","doi":"10.1109/IRPS.2012.6241805","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241805","url":null,"abstract":"In this paper, we present TDDB, HCI and BTI reliability characterization of Nfet and Pfet devices issued from FDSOI and bulk 28nm technologies. 28nm FDSOI devices achieve 32% improved performance, 40% reduced power consumption and improved matching. From device level tests, 28nm FDSOI also demonstrates intrinsic reliability behavior similar to 28 bulk devices, giving confidence in the robustness of this technology.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123297484","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241917
Ramesh Vaddi, T. T. Kim, Vincent Pott, J. T. M. Lin
This paper presents a novel nano-electro-mechanical (NEM) non-volatile memory (NVM) based on an anchorless structure for high operating temperature (>;200°C). The proposed NEM NVM device has two stable mechanical states obtained by adhesion forces, and is actuated by electrostatic forces. This work further discusses the modeling of the NEM memory device and the scaling effects on the device performance. Finally, a memory cell consisting of the NEM memory device and two MOS transistors (1NEM-2T), and NEM NVM array structure are presented.
{"title":"Design and analysis of anchorless shuttle nano-electro-mechanical non-volatile memory for high temperature applications","authors":"Ramesh Vaddi, T. T. Kim, Vincent Pott, J. T. M. Lin","doi":"10.1109/IRPS.2012.6241917","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241917","url":null,"abstract":"This paper presents a novel nano-electro-mechanical (NEM) non-volatile memory (NVM) based on an anchorless structure for high operating temperature (>;200°C). The proposed NEM NVM device has two stable mechanical states obtained by adhesion forces, and is actuated by electrostatic forces. This work further discusses the modeling of the NEM memory device and the scaling effects on the device performance. Finally, a memory cell consisting of the NEM memory device and two MOS transistors (1NEM-2T), and NEM NVM array structure are presented.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122725544","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241873
C. Sandhya, A. Bastard, L. Perniola, J. Bastien, A. Toffoli, E. Henaff, A. Roule, A. Persico, B. Hyot, V. Sousa, B. De Salvo, G. Reimbold
For the first time, we evaluate the electrical behavior of boron doped GeTe Phase-Change Memories (PCM). Our results demonstrate 25% RESET current reduction and excellent resistance contrast between SET and RESET states with B doping. A further benefit of controlled SET dynamics makes it favorable for MLC applications. Finally, we demonstrate that boron doped GeTe phase change materials maintain good device endurance reliability.
{"title":"Analysis of the effect of boron doping on GeTe Phase Change Memories","authors":"C. Sandhya, A. Bastard, L. Perniola, J. Bastien, A. Toffoli, E. Henaff, A. Roule, A. Persico, B. Hyot, V. Sousa, B. De Salvo, G. Reimbold","doi":"10.1109/IRPS.2012.6241873","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241873","url":null,"abstract":"For the first time, we evaluate the electrical behavior of boron doped GeTe Phase-Change Memories (PCM). Our results demonstrate 25% RESET current reduction and excellent resistance contrast between SET and RESET states with B doping. A further benefit of controlled SET dynamics makes it favorable for MLC applications. Finally, we demonstrate that boron doped GeTe phase change materials maintain good device endurance reliability.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122563745","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241867
A. Schmitz
The accurate setting of electromigration (EM) design guidelines early is necessary to achieve chip-level fail goals. The issue is even more critical with the recognition of the percentage fail as a stochastic issue based on the individual EM elements. The challenge is the degree to fix those elements prior to the knowledge of chip-level fail rate. This paper will demonstrate a test case and approaches to early design guidelines which have shown success at meeting chip-level EM fail goals.
{"title":"Practical implications of chip-level statistical electromigration","authors":"A. Schmitz","doi":"10.1109/IRPS.2012.6241867","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241867","url":null,"abstract":"The accurate setting of electromigration (EM) design guidelines early is necessary to achieve chip-level fail goals. The issue is even more critical with the recognition of the percentage fail as a stochastic issue based on the individual EM elements. The challenge is the degree to fix those elements prior to the knowledge of chip-level fail rate. This paper will demonstrate a test case and approaches to early design guidelines which have shown success at meeting chip-level EM fail goals.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"311 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122805053","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}
Pub Date : 2012-04-15DOI: 10.1109/IRPS.2012.6241822
S. Sangameswaran, V. Cherman, J. de Coster, A. Witvrouw, G. Groeseneken, I. De Wolf
The mechanical response of electrostatically-actuated MEMS to ESD stress leads to contact breakdown or to discharges across micro-gaps. This is the root cause of most MEMS failures under ESD stress. This paper discusses improvement of the intrinsic ESD robustness of SiGe MEMS from Class0 (<;250V) to more than Class1 (>;500V), through smart design variations and higher mechanical stiffness. A MEMS-based one-time ESD-protection fuse with pre-defined trigger voltage is shown as an application.
{"title":"Design and fabrication of SiGe MEMS structures with high intrinsic ESD robustness","authors":"S. Sangameswaran, V. Cherman, J. de Coster, A. Witvrouw, G. Groeseneken, I. De Wolf","doi":"10.1109/IRPS.2012.6241822","DOIUrl":"https://doi.org/10.1109/IRPS.2012.6241822","url":null,"abstract":"The mechanical response of electrostatically-actuated MEMS to ESD stress leads to contact breakdown or to discharges across micro-gaps. This is the root cause of most MEMS failures under ESD stress. This paper discusses improvement of the intrinsic ESD robustness of SiGe MEMS from Class0 (<;250V) to more than Class1 (>;500V), through smart design variations and higher mechanical stiffness. A MEMS-based one-time ESD-protection fuse with pre-defined trigger voltage is shown as an application.","PeriodicalId":341663,"journal":{"name":"2012 IEEE International Reliability Physics Symposium (IRPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129417287","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}