{"title":"GaAs Schottky Gate bipolar transistors for high voltage power switching applications","authors":"C. Johnson, M. Hossin, A. O'Neill","doi":"10.1109/ESSDERC.1997.194487","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194487","url":null,"abstract":"A GaAs alternative to the Si IGBT, employing an implanted lateral channel in place of the usual MOSFET inversion channel, is proposed. Design strategies for both Si IGBT and GaAs SGBT are investigated and applied in the design of optimised unit cells. The optimised structures are compared by means of electrothermal and transient simulation. The GaAs device displays improved latch-up tolerance, a greater current handling capability, faster switching with a reduced tail current and useable performance at temperatures in excess of 300C.","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133539523","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. Ada‐Hanifi, M. Bonis, C. Verove, M. Basso, N. Revil, M. Haond, M. Lecontellec
{"title":"0.25 um NMOS transistor with nitride spacer: reduction of the short channel effect by optimisation of the gate reoxidation process and reliablity","authors":"M. Ada‐Hanifi, M. Bonis, C. Verove, M. Basso, N. Revil, M. Haond, M. Lecontellec","doi":"10.1109/ESSDERC.1997.194449","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194449","url":null,"abstract":"In this work, we present an investigation of the gate reoxidation step on the short channel effect. The thicker the thermal oxide, the stronger the roll-down of the threshold voltage on the NMOS transistor. This major result lead us to develop an alternative process for nitride spacer with the pad deposited TEOS that behaves as a convenient etch stop layer and allows to obtain a reduced short channel effect. The reliability results on NMOS transistor for the nitride spacers process are similar to those obtained with the TEOS spacer spacer. Introduction :Oxide spacers in deep sub-half micron technology are limited by a poor conformity of deposited oxides, trenching in the field oxide, and a high occurence of shunts between gate and drain or source, due to the salicidation step. Nitride spacers allow to overcome these difficulties, but usually require a thin oxide layer as etch stop of the nitride spacer etch, in order to prevent active area etch. In this study, it is demonstrated that the reoxidation after gate etch forms a bird's beak under the gate edges which induces an enhanced short channel effect. A thin TEOS deposited layer has been successfully used, in place of the thermal oxide, with the associated improvements of the device characteristics, in terms of short channel effect and Ion-Ioff trade-off optimisation. Process : 1/. In our CMOS 0.25mm process, 10 nm oxide is grown after gate etch and before LDD implants, this thickness is required to obtain a convenient etch stop for the nitride spacer etching. The thickness of the reoxidation was also checked for the TEOS spacer process. In this study, this thermal oxidation is compared with a TEOS oxide deposition of the same thickness 2/. Wet densification at 750°C is introduced after LDD Arsenic implantation in NMOS. This improves the oxide integrity before nitride spacer deposition and etch. Nitride spacer etch is performed in a LAM4428 using a standard plasma HBr-SF6-O2 chemistry. Uniformity is 4% and selectivity on oxide is 8. For 110 nm nitride deposition, the spacer width is 70 nm. For process comparison, this nitride spacer is compared to a 110 nm wide TEOS spacer. Results . Acomparison of oxide and nitride spacer process: In Figure 1, the variation of the NMOS threshold voltage (VT) versus the effective channel length does not show any difference between the nitride and the TEOS spacer in the NMOS devices. Since the series resistance is the same, we obtain the same ION-IOFF 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 0,15 0,25 0,35 0,45 Leff (μm) Fig.1 : VT(Leff) for nitride and TEOS spacer Nitride spacer TEOS spacer behaviour for oxide and nitride spacer devices : Figure 2. Moreover the channel length is the same, in each case. B Effect of the gate reoxidation on NMOS : TEOS spacers with a 5 nm thermal reoxidation indicate better performances than the above devices (10 nm reoxidation). Indeed, the VT(Leff) in Figure 3 indicates a reduction of the short channel effect and the ION-IOFF plot, given ","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131085406","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":"Simulation of avalanche injection filamentation in MOSFET's and IGBT's","authors":"V. Vashchenko, Y. Martynov, V. Sinkevitch","doi":"10.1109/ESSDERC.1997.194429","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194429","url":null,"abstract":"On the basis of 2-D numerical simulation the isothermal current instability and filamentation have been investigated in the MOSFET’s and IGBT’s. It is stated that exceeding of some critical voltage value and current density in these devices provides negative differential resistance (NDR) due to the avalanche injection conductivity modulation and current filamentation of the source-drain (emitter-collector) spacing.","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115357937","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 Consistent Parameter Extraction Method for Deep Submicron MOSFETs","authors":"P. Klein","doi":"10.1109/ESSDERC.1997.194516","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194516","url":null,"abstract":"","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"913 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114001538","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. Lifka, P. Woerlee, C. de Graaf, C. Hart, P. Janssen, G. Paulzen, M. Theunissen, P. de Vreede
{"title":"Technology of the Diode Programmable Read Only Memory","authors":"H. Lifka, P. Woerlee, C. de Graaf, C. Hart, P. Janssen, G. Paulzen, M. Theunissen, P. de Vreede","doi":"10.1109/ESSDERC.1997.194418","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194418","url":null,"abstract":"","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120976323","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":"C-V characteristics of Pt/SrBi2Ta2O9/CeO2/Si structure for non-volatile memory devices","authors":"H. Lee, D. Shin, Y.T. Kim, S. Choh","doi":"10.1109/ESSDERC.1997.194539","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194539","url":null,"abstract":"Electrical properties of Pt/SrBi2Ta2O9/CeO2/Si structure have been investigated for the ferroelectric gate of non-volatile memory. Memory windows of the ferroelectric gate are in the range of 1~2V corresponding to the thickness of SrBi2Ta2O9 films at the applied voltage of 6V. This memory window is strongly dependent upon not the remanent polarization but the coercive field intensity applied to the SrBi2Ta2O9.","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116663862","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":"Analytical modeling of InP/InGaAs HBTs","authors":"H. Sheng, A. Rezazadeh, D. Wake","doi":"10.1109/ESSDERC.1997.194528","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194528","url":null,"abstract":"","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114234837","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. Villa, G. de Geronimo, A. Pacelli, A. Lacaita, A. Longoni
{"title":"Determination of interface state density of ULSI n-MOSFET by 1/f noise measurements","authors":"S. Villa, G. de Geronimo, A. Pacelli, A. Lacaita, A. Longoni","doi":"10.1109/ESSDERC.1997.194433","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194433","url":null,"abstract":"","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132860859","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}
D. Pogany, C. Furbock, N. Seliger, P. Habaš, E. Gornik
{"title":"Optical testing of submicron-technology MOSFETs and bipolar transistors","authors":"D. Pogany, C. Furbock, N. Seliger, P. Habaš, E. Gornik","doi":"10.1109/ESSDERC.1997.194443","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194443","url":null,"abstract":"A noninvasive infrared laser interferometric technique is used to analyse 0.1 m-test-technology NMOSFETs and 0.5μm-technology bipolar junction transistors and PMOSFETs. Optical signals arising from free carrierand temperature-induced modulation of the laser beam are studied as a function of bias conditions, device operation frequency and lateral distance from the device. The experiments are found to be in good agreement with results of optical and thermal simulations.","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131516919","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}
J.K. Yeh, H. Su, Y. Lin, C.D. Shieh, D. Kuo, M. Liang, G. Tao, F. List, L. Shi, R. Colclaser, N. Tandan, K. Chen, M. Chen, A. Gorkum
{"title":"A 0.5 um Flash Technology suitable for Low Voltage Embedded Applications","authors":"J.K. Yeh, H. Su, Y. Lin, C.D. Shieh, D. Kuo, M. Liang, G. Tao, F. List, L. Shi, R. Colclaser, N. Tandan, K. Chen, M. Chen, A. Gorkum","doi":"10.1109/ESSDERC.1997.194415","DOIUrl":"https://doi.org/10.1109/ESSDERC.1997.194415","url":null,"abstract":"High density, low supply voltage, low power consumption and fast program/erase flash memory are important in data storage for applications in portable electronic products. In this paper we present a 0.5 um low voltage flash technology embedded in a standard 0.5 um Ti-salicide logic process. Stacked gate flash memory cell is chosen and both programming and erase are done through by bi-directional Fowler-Nordheim tunneling. Single cell programming and erasing times are 5ms and 10ms, respectively. With page mode programming, a programming time of 5us per bit are achieved. The single cell endurance is better than 10 cycles.","PeriodicalId":424167,"journal":{"name":"27th European Solid-State Device Research Conference","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131576861","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}