Cheolmin Park, Seong-Dong Kim, Y. Wang, S. Talwar, J. Woo
{"title":"50 nm SOI CMOS transistors with ultra shallow junction using laser annealing and pre-amorphization implantation","authors":"Cheolmin Park, Seong-Dong Kim, Y. Wang, S. Talwar, J. Woo","doi":"10.1109/VLSIT.2001.934951","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934951","url":null,"abstract":"CMOS transistors with 50 nm physical gate length are fabricated by laser annealing (LA) combined with pre-amorphization implantation (PAI) on an SOI substrate. Very low energy laser annealing is made possible by the SOI substrate, resulting in a large process window margin without undesirable parasitic phenomena. The transistors fabricated by the proposed method show higher drive current and better short channel effects than conventionally rapid thermal annealed (RTA) devices.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114381256","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}
C. M. Chu, M. Kiyotoshi, S. Niwa, J. Nakahira, K. Eguchi, S. Yamazaki, K. Tsunoda, M. Fukuda, T. Suzuki, M. Nakabayashi, H. Tomita, C. Shiah, D. Matsunaga, K. Hieda
{"title":"Cylindrical Ru-SrTiO/sub 3/-Ru capacitor technology for 0.11 /spl mu/m generation DRAMs","authors":"C. M. Chu, M. Kiyotoshi, S. Niwa, J. Nakahira, K. Eguchi, S. Yamazaki, K. Tsunoda, M. Fukuda, T. Suzuki, M. Nakabayashi, H. Tomita, C. Shiah, D. Matsunaga, K. Hieda","doi":"10.1109/VLSIT.2001.934938","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934938","url":null,"abstract":"We have developed a cylindrical Ru/ST/Ru capacitor for gigabit-scale DRAMs. Using cylindrical CVD-Ru as a storage node (SN), a new 2-step CVD-ST was employed to improve ST step coverage, surface morphology and to control composition at the Ru/ST interface. A SiO/sub 2/ equivalent thickness (t/sub eq/) of 0.6 nm and cell capacitance of 18 fF/cell with leakage current of 0.1 fA/cell at /spl plusmn/0.7 V applied voltage has been achieved on a 256K cylindrical Ru/ST/Ru capacitor array.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133663471","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":"Transistor-limited constant voltage stress of gate dielectrics","authors":"B. Linder, D. Frank, J. Stathis, S. Cohen","doi":"10.1109/VLSIT.2001.934965","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934965","url":null,"abstract":"Conventional methodologies gauge gate oxide reliability by stressing with a low impedance voltage source. This is more severe than the stress sustained during circuit operation in which transistors are driven by other transistors. A new test configuration which better approximates circuit stress conditions, the transistor-limited constant voltage stress test, significantly reduces post-breakdown conduction (I/sub BD/) as compared to standard constant voltage stress. The smaller the current drive capability of the limiting transistor, the softer the breakdown. If I/sub BD/ of the broken dielectric is sufficiently reduced while the circuit voltage margin is not exceeded, circuits may continue to function even with a failed oxide.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132269305","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":"Manufacturing in the 21st century-new concept for 300 mm fab","authors":"A. Koike","doi":"10.1109/VLSIT.2001.934918","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934918","url":null,"abstract":"Trecenti Technologies, Inc. is currently creating the first 300 mm-wafer volume production fab. Our basic objectives are to minimize cycle time with all single-wafer processes and to create a scalable fab that has an optimized expansion unit to satisfy high investment efficiency and flexibility to changing market needs.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131295249","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}
S.J. Lee, H. Luan, C. Lee, T. Jeon, W. Bai, Y. Senzaki, D. Roberts, D. Kwong
{"title":"Performance and reliability of ultra thin CVD HfO/sub 2/ gate dielectrics with dual poly-Si gate electrodes","authors":"S.J. Lee, H. Luan, C. Lee, T. Jeon, W. Bai, Y. Senzaki, D. Roberts, D. Kwong","doi":"10.1109/VLSIT.2001.934985","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934985","url":null,"abstract":"MOSFETs with high quality ultra thin (EOT/spl sim/10.3 /spl Aring/) HfO/sub 2/ gate stacks and self-aligned dual poly-Si gate are fabricated and characterized. Both n- and p-MOSFETs show good electron and hole mobility, respectively, and excellent sub-threshold swings. In addition, the HfO/sub 2/ gate stack exhibits excellent thermal stability with poly-Si gates up to 1050/spl deg/C/30 s gate activation annealing and shows excellent TDDB reliability characteristics with negligible charge trapping and SILC under high-field stressing.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"330 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115970738","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}
H. Shimada, I. Ohshima, S. Nakao, M. Nakagawa, K. Kanemoto, M. Hirayama, S. Sugawa, T. Ohmi
{"title":"Low resistivity bcc-Ta/TaN/sub x/ metal gate MNSFETs having plane gate structure featuring fully low-temperature processing below 450/spl deg/C","authors":"H. Shimada, I. Ohshima, S. Nakao, M. Nakagawa, K. Kanemoto, M. Hirayama, S. Sugawa, T. Ohmi","doi":"10.1109/VLSIT.2001.934950","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934950","url":null,"abstract":"We have developed a low-resistivity metal gate metal-nitride-semiconductor (MNS) FET technology with conventional plane gate structure using fully low-temperature processing. The gate stack consists of directly grown silicon nitride (Si/sub 3/N/sub 4/) dielectric using high-density plasma and bcc-phase tantalum (/spl sim/15 /spl mu//spl Omega/cm)/tantalum nitride (bcc-Ta/TaN/sub x/) stacked metal gate below 1.0 /spl Omega//sq. In order to avoid deterioration of the metal gate system, we adopted low-temperature S/D annealing by the solid phase epitaxy (SPE) method. In this paper, we demonstrate the excellent characteristics of fully-depleted silicon-on-dielectric (FDSOI) metal gate MNSFETs with conventional plane gate structure using fully low-temperature processing below 450/spl deg/C.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122004414","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. Joshi, C. Chuang, S. Fung, F. Assaderaghi, M. Sherony, I. Yang, G. Shahidi
{"title":"Effects of gate-to-body tunneling current on PD/SOI CMOS SRAM","authors":"R. Joshi, C. Chuang, S. Fung, F. Assaderaghi, M. Sherony, I. Yang, G. Shahidi","doi":"10.1109/VLSIT.2001.934954","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934954","url":null,"abstract":"The gate tunneling current for gate oxide thickness around 2.0 nm or below has been known to increase device leakage and power dissipation, and deteriorate device performance and circuit stability in bulk CMOS. Recently, direct tunneling current models for bulk CMOS circuit simulations have been developed (Choi et al., 1999; Lee and Hu, 2000). The gate-to-substrate tunneling current resulting from the electron tunneling from the valence band (EVB) is significantly less than the tunneling current from the channel into the gate, and its effect can usually be neglected in bulk CMOS devices and circuits. For floating-body partially-depleted (PD) SOI devices, however, the gate-to-body tunneling current charges/discharges the floating-body, thus changing the body voltage and V/sub T/ and affecting circuit operation (Fung et al., 2000). In this paper, we present a detailed study of the effect of gate tunneling current on a high performance 34 Kb L1 directory SRAM in a 1.5 V, 0.18 /spl mu/m PD/SOI technology with L/sub eff/=0.08 /spl mu/m and t/sub ox/=2.3 /spl mu/m. This SRAM was originally designed in a 1.5 V, 0.18 /spl mu/m bulk CMOS technology and has achieved 2.0 GHz cycle time and 430 ps access time (Joshi et al., 2000). It utilizes pseudo-static circuits for robust timing and to facilitate migration to PD/SOI technology.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128006386","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}
T. Schiml, S. Biesemans, G. Brase, L. Burrell, A. Cowley, K. Chen, A. von Ehrenwall, B. von Ehrenwall, P. Felsner, J. Gill, F. Grellner, F. Guarín, L. Han, M. Hoinkis, E. Hsiung, E. Kaltalioglu, P. Kim, G. Knoblinger, S. Kulkarni, A. Leslie, T. Mono, T. Schafbauer, U. Schroeder, K. Schruefer, T. Spooner, D. Warner, C. Wang, R. Wong, E. Demm, P. Leung
{"title":"A 0.13 /spl mu/m CMOS platform with Cu/low-k interconnects for system on chip applications","authors":"T. Schiml, S. Biesemans, G. Brase, L. Burrell, A. Cowley, K. Chen, A. von Ehrenwall, B. von Ehrenwall, P. Felsner, J. Gill, F. Grellner, F. Guarín, L. Han, M. Hoinkis, E. Hsiung, E. Kaltalioglu, P. Kim, G. Knoblinger, S. Kulkarni, A. Leslie, T. Mono, T. Schafbauer, U. Schroeder, K. Schruefer, T. Spooner, D. Warner, C. Wang, R. Wong, E. Demm, P. Leung","doi":"10.1109/VLSIT.2001.934969","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934969","url":null,"abstract":"We describe an advanced 0.13 /spl mu/m CMOS technology platform optimized for density, performance, low power and analog/mixed signal applications. Up to 8 levels of copper interconnect with the industry's first true low-k dielectric (SiLK, k=2.7) (Goldblatt et al., 2000) result in superior interconnect performance at aggressive pitches. A 2.28 /spl mu/m/sup 2/ SRAM cell is manufactured with high yield by introducing elongated local interconnects on the contact level without increasing process complexity. Trench based embedded DRAM is offered for large area memory. Modular analog devices as well as passive components like resistors, MIM capacitors and intrinsic inductors are integrated.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128648083","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":"A new quantitative hydrogen-based model for ultra-thin oxide breakdown","authors":"J. Suñé, E. Wu","doi":"10.1109/VLSIT.2001.934967","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934967","url":null,"abstract":"A new quantitative hydrogen-based model for the degradation and breakdown of ultra-thin SiO/sub 2/ gate oxides is presented. The model is based on the quantum mechanical description of chemical reactions which involve protons and oxygen vacancies both at the Si-SiO/sub 2/ interface (suboxide bonds) and in the oxide bulk. Comparison with experiments shows that the values of the model parameters are compatible with recent first-principles calculations.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131413211","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":"Metal gate work function adjustment for future CMOS technology","authors":"Q. Lu, R. Lin, P. Ranade, T. King, C. Hu","doi":"10.1109/VLSIT.2001.934939","DOIUrl":"https://doi.org/10.1109/VLSIT.2001.934939","url":null,"abstract":"CMOS transistors were fabricated using a single metal, [110]-Mo, as the gate material. [110]-Mo shows a high work function value that is suitable for PMOSFETs, and, with nitrogen implantation, its work function can be reduced to meet the requirements of NMOSFETs. The change in Mo work function can be controlled by the nitrogen implant parameters, which is potentially useful for multiple-V/sub T/ technology. TEM and EDS analysis show that Mo gate electrodes are stable after undergoing a conventional CMOS process.","PeriodicalId":232773,"journal":{"name":"2001 Symposium on VLSI Technology. Digest of Technical Papers (IEEE Cat. No.01 CH37184)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133150477","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}