{"title":"Vertical nanowire transistor-based CMOS: VTC analysis","authors":"S. Maheshwaram, S. Manhas, B. Anand","doi":"10.1109/ICEMELEC.2014.7151187","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151187","url":null,"abstract":"In this paper, a detailed analysis of the voltage transfer characteristics of vertical nanowire transistor-based CMOS inverter is presented. We show that noise margins are strongly dependent on the source/drain series resistance, and that the extension lengths can be used as tuning parameters to control the noise margin and gains of the inverter.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115159832","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. Brahmanandam, M. Ajmalghan, R. Abhilash, D. Mahapatra, M. Rahaman, G. Hegde
{"title":"Optoelectronic properties of graphene silicon nano-texture","authors":"J. Brahmanandam, M. Ajmalghan, R. Abhilash, D. Mahapatra, M. Rahaman, G. Hegde","doi":"10.1109/ICEMELEC.2014.7151132","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151132","url":null,"abstract":"Graphene on silicon with silicon dioxide quantum dots is a promising opto-electronic material. The optical band gap and the corresponding optical conductivity are estimated using the density functional approach with the combination of molecular dynamics. The regular repeating unit cell of graphene silicon nano-texture is identified using the classical molecular dynamics simulations. Electronic calculations predict the optical band gap is around 0.2 eV and the optical conductivity is identified to be 0.3 times the quantum conductance.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121186458","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":"Fiber Bragg Grating Tilt Meter","authors":"Sharath Umesh, Shikha Ambastha, Asokan Sundarrajan","doi":"10.1109/ICEMELEC.2014.7151142","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151142","url":null,"abstract":"In this paper, we propose a novel methodology of real time dynamic tilt monitoring through the designed and developed Fiber Bragg Grating Tilt Meter (FBGTM). Based on the volumetric water pressure exerted from inside the chamber on the diaphragm over which the FBG sensor is bonded, the tilt angle of FBGTM can be estimated. An inclination platform is constructed to test the designed FBGTM in conjunction with a commercial inclinometer. The results obtained from both sensor methodologies are in good agreement with each other.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122862950","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. Mishra, Sudhir Kumar, S. K. Tomar, S. Vinayak, B. K. Sehgal
{"title":"Effect of traps on small signal equivalent circuit in AlGaN/GaN HEMTs","authors":"M. Mishra, Sudhir Kumar, S. K. Tomar, S. Vinayak, B. K. Sehgal","doi":"10.1109/ICEMELEC.2014.7151174","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151174","url":null,"abstract":"The presence of electrical traps in AlGaN/GaN HEMT devices can play a major role in determining the power performance of the device. In this work we have carried out measurements to understand the role of traps in these devices. The study has been carried out by comparing the Pulse I-V measurements and S parameter measurements, on the devices with knee walkout and without knee walkout. The changes in the small signal equivalent circuit of the devices have also been studied.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114203489","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":"Growth of high quality GaN nanowalls on Si (111) surface","authors":"S. Shetty, S. M. Shivaprasad","doi":"10.1109/ICEMELEC.2014.7151190","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151190","url":null,"abstract":"In this article, we propose the formation of GaN nanowall morphology on Si (111) surface by varying nitrogen flux from 2, 4.5 and 6sccm in PA-MBE growth. The optical, structural and electrical properties of these films are investigated. Cathodo-luminescence data suggests that the nanowall network grown at 6sccm show high optical emission and high crystalline quality. The current-voltage (I-V) characteristics of the GaN films exhibit varying rectifying behavior at 1V with forward to reverse current ratios of 39, 155, 388 for the GaN layers grown at 2, 4.5 and 6 sccm while the reverse leakage current values are 1.2×10-3, 2.6×10-4 and 9×10-6 A respectively for these junctions. The good optical and electrical properties observed suggest that GaN/Si heterojunction grown at 6sccm nitrogen flow comprise of low defect density.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123200646","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. Mahajan, Anushree Tomer, A. Malik, R. Laishram, V. R. Agarwal, A. Naik
{"title":"Electrical characteristics of post-gate-annealed AlGaN/GaN HEMTs on sapphire substrate","authors":"S. Mahajan, Anushree Tomer, A. Malik, R. Laishram, V. R. Agarwal, A. Naik","doi":"10.1109/ICEMELEC.2014.7151173","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151173","url":null,"abstract":"AlGaN/GaN HEMTs were post-gate-annealed at 300°C for 2 min and longer. DC characteristics of AlGaN/GaN HEMTs as a function of annealing cycle duration were studied. Improvement in HEMT parameters such as drain source saturation current, transconductance, gate leakage current and off-state breakdown voltage (Vboff) was observed with increase in annealing duration. This was correlated with surface/interface traps removal, leading to improvement in access region resistance between source-drain and gate drain regions.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123246665","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. Laishram, Sunil Kumar, S. Dayal, R. Chaubey, R. Raman, B. K. Sehgal
{"title":"The effect of different silicon nitride passivation recipes on the DC characteristics of AlGaN/GaN HEMTs","authors":"R. Laishram, Sunil Kumar, S. Dayal, R. Chaubey, R. Raman, B. K. Sehgal","doi":"10.1109/ICEMELEC.2014.7151143","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151143","url":null,"abstract":"The changes in dc characteristics of AlGaN/GaN HEMT after ICP-CVD silicon nitride (SiNx) passivation using two different recipes were investigated. Room temperature Raman analysis was performed to determine the stress state of the AlGaN layer after SiNx passivation. The changes in the stress state of the device after passivation was correlated with the shift in threshold voltage and changes in drain current. DC measurement was used as a quick method to assess the drain current collapse. The degree of current collapse in the samples passivated with two different recipes is discussed in the light of the results, and hypothesis and explanations reported in the literature.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126165724","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":"Modeling of sheet-concentration and temperature-dependent resistivity of a suspended monolayer graphene","authors":"D. Saha, S. Bhattacharya, S. Mahapatra","doi":"10.1109/ICEMELEC.2014.7151193","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151193","url":null,"abstract":"In this paper, we address a simplified physics-based analytical model for the temperature - as well as the sheet-concentration-dependent resistivity of the free-standing monolayer graphene sheet. The analytical solution is achieved through the formulation of the sheet-concentration as the function of the external current. To determine the temperature-and sheet-concentration-dependent resistivity of the suspended layer of graphene (SLG), we have utilized the Landauer formalism in the diffusive limit. Besides, the overall contribution of different scattering mechanisms has been calculated considering both the in-plane and the flexural phonons. The analytical model presented in this work is in good agreement with the available experimental data.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128709544","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 Drain-side Gate-underlap I-MOS (DGI-MOS) transistor as a label-free biosensor for detection of charged biomolecules","authors":"N. Kannan, M. J. Kumar","doi":"10.1109/ICEMELEC.2014.7151213","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151213","url":null,"abstract":"Electronic devices are finding increasing application as biosensors for the label-free detection of biomolecules. These biosensors offer the advantage of fast detection and compatibility with existing CMOS processes that enable rapid commercialization, and achieve very low detection limits. A biosensor's sensitivity is one of the main factors determining its performance. The application of emerging steep sub-threshold devices as biosensors is being actively explored due to their ability to provide very high sensitivities. In this paper, we propose the application of a Drain-side Gate-underlap Impact-ionization MOS (DGI-MOS) transistor as a sensor for label-free detection of charged biomolecules. The DGI-MOS biosensor is implemented by introducing an underlap in the gate electrode over the channel region at the drain side. The underlap serves as the location for the immobilization of biomolecules. With TCAD simulations, we demonstrate the proposed DGI-MOS biosensor to have a high sensitivity to the presence of charged biomolecules. In addition, the threshold voltage (VT) shift observed due to the presence of biomolecules is observed to be significantly higher than the other reported steep sub-threshold device-based biosensors. We demonstrate that the DGI-MOS biosensor allows the underlap region length to be comparable with the gate electrode length, simplifying the manufacturing steps involved in creating the underlap region.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125297953","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}
Shreesha Prabhu, Sankaran Koyili, M. Manjunath, M. Nayak
{"title":"An experimental study on current vs. temperature effect of gold ribbon for wire bonding in power devices","authors":"Shreesha Prabhu, Sankaran Koyili, M. Manjunath, M. Nayak","doi":"10.1109/ICEMELEC.2014.7151206","DOIUrl":"https://doi.org/10.1109/ICEMELEC.2014.7151206","url":null,"abstract":"Wire Bonding is a well known method used for interconnecting integrated circuit (IC) die and the leads of its package. In this paper, the effect of current on the temperature of the gold (Au) ribbon used for wire bonding in the packaging of power device is presented. Infrared spectrometer study and direct thin film Pt temperature sensor analysis were used to analyze the temperature variations in gold ribbon.","PeriodicalId":186054,"journal":{"name":"2014 IEEE 2nd International Conference on Emerging Electronics (ICEE)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122559215","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}