Pub Date : 2013-09-01DOI: 10.1109/RSM.2013.6706568
Masuri BinOthman
Malaysia aspires to become high income nation by 2020. The Government Transformation Program (GTP) has set by 2020, the GNI percapita will be RM48,000 and the creation of high-income jobs of 3.3 Millions. In order to achieve the desired outcome, the government has identified 12 NKEA areas with 131 entry point projects to be carried out. One of the 12 NKEAs which is Electrical and Electronics is expected to create GNI of RM90B and the creation of 157,000 jobs. The areas identified in the E&E are LED, Solar, industrial electronics and home appliances, Semiconductor as well as nanotechnology that will include the creation of whole value chain industry. Additionally the National Science and Research Council (NSRC) has identified 9 sectors that Malaysia must pursue for it to become a competitive nation in the future. Thus for Malaysia to succeed in the future, its innovation ecosystem must be strengthen and improved; thus The Quadruple Helix framework; ie the collaboration between IHLs and Industry supported by government policies and financial supports must be promoted. This presentation will address the issues of the innovation ecosystem and the quadruple helix. The roles of industry; ie particularly in the technology deployment in the GTP/ETP initiatives as well as various corridors across the country will be linked to the IHLs through the setting up of the COEs in the universities. Various grants schemes to support the R&D&C will be highlighted and some of the issues in the technology commercialisation will be presented. Some proposals in the creation of High Impact Research programs will be proposed that in line with the GTP/ETP which could be funded by various government funding agencies.
{"title":"An overview of innovation ecosystem in Malaysia","authors":"Masuri BinOthman","doi":"10.1109/RSM.2013.6706568","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706568","url":null,"abstract":"Malaysia aspires to become high income nation by 2020. The Government Transformation Program (GTP) has set by 2020, the GNI percapita will be RM48,000 and the creation of high-income jobs of 3.3 Millions. In order to achieve the desired outcome, the government has identified 12 NKEA areas with 131 entry point projects to be carried out. One of the 12 NKEAs which is Electrical and Electronics is expected to create GNI of RM90B and the creation of 157,000 jobs. The areas identified in the E&E are LED, Solar, industrial electronics and home appliances, Semiconductor as well as nanotechnology that will include the creation of whole value chain industry. Additionally the National Science and Research Council (NSRC) has identified 9 sectors that Malaysia must pursue for it to become a competitive nation in the future. Thus for Malaysia to succeed in the future, its innovation ecosystem must be strengthen and improved; thus The Quadruple Helix framework; ie the collaboration between IHLs and Industry supported by government policies and financial supports must be promoted. This presentation will address the issues of the innovation ecosystem and the quadruple helix. The roles of industry; ie particularly in the technology deployment in the GTP/ETP initiatives as well as various corridors across the country will be linked to the IHLs through the setting up of the COEs in the universities. Various grants schemes to support the R&D&C will be highlighted and some of the issues in the technology commercialisation will be presented. Some proposals in the creation of High Impact Research programs will be proposed that in line with the GTP/ETP which could be funded by various government funding agencies.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127340582","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706480
F. Larki, A. Dehzangi, M. Hamidon, S. Ali, A. Jalar, Shabiul Islam
The electrical behaviour of double lateral gate junctionless transistors, regarding to the variation of channel thickness is investigated, through 3-D numerical simulations. The simulation results explicitly show that how the device thickness affect the on and off current and threshold voltage behavior based on variation of the carriers density and recombination rates of the carriers. As the channel thickness is decreased, the amount of bulk neutral channel getting smaller which cause a decrease in the on state current. Meanwhile, the lateral gate influence on the channel is reinforced, which cause a decrease in leakage current in the off state. Threshold voltage is decreased as the channel thickness decreases. However, the recombination rate of carriers increases with decreasing the channel thickness, due to the accumulation of minority carries and shifted to the source side of the channel.
{"title":"A simulation study of thickness effect in performance of double lateral gate junctionless transistors","authors":"F. Larki, A. Dehzangi, M. Hamidon, S. Ali, A. Jalar, Shabiul Islam","doi":"10.1109/RSM.2013.6706480","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706480","url":null,"abstract":"The electrical behaviour of double lateral gate junctionless transistors, regarding to the variation of channel thickness is investigated, through 3-D numerical simulations. The simulation results explicitly show that how the device thickness affect the on and off current and threshold voltage behavior based on variation of the carriers density and recombination rates of the carriers. As the channel thickness is decreased, the amount of bulk neutral channel getting smaller which cause a decrease in the on state current. Meanwhile, the lateral gate influence on the channel is reinforced, which cause a decrease in leakage current in the off state. Threshold voltage is decreased as the channel thickness decreases. However, the recombination rate of carriers increases with decreasing the channel thickness, due to the accumulation of minority carries and shifted to the source side of the channel.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128949164","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706567
U. Hashim
Summary form only given. Fabrication and electrical characterization of 5-nm polysilicon gaps and their properties are discussed with their application in electrochemical sensors and biomolecule detection. To understand the relationship between the biosensor and nanotechnology we have carried out the fabrication and characterization of nanogap structures for DNA detection. In this paper, 2 mask designs are used. The first mask is for defining the lateral nanogap and the second mask is for the pad electrode pattern. Lateral nanogaps are formed using polysilicon and Au as the contact pad electrode. Conventional photolithography technique is used to fabricate the nanoogap structure. The electrical measurements are carried out using Dielectric Analyzer. The capacitance across the nanoogap was noted to change with probing and when target DNA solution is dropped between the gaps. The measured values of capacitance for the probe and target DNA solution are presented as a function of the frequency, where, the capacitance values were increased after immobilization of the target DNA and double increased after hybridization of the target DNA.
{"title":"Fabrication and characterization of polysilicon nanogap device for DNA hybridization detection","authors":"U. Hashim","doi":"10.1109/RSM.2013.6706567","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706567","url":null,"abstract":"Summary form only given. Fabrication and electrical characterization of 5-nm polysilicon gaps and their properties are discussed with their application in electrochemical sensors and biomolecule detection. To understand the relationship between the biosensor and nanotechnology we have carried out the fabrication and characterization of nanogap structures for DNA detection. In this paper, 2 mask designs are used. The first mask is for defining the lateral nanogap and the second mask is for the pad electrode pattern. Lateral nanogaps are formed using polysilicon and Au as the contact pad electrode. Conventional photolithography technique is used to fabricate the nanoogap structure. The electrical measurements are carried out using Dielectric Analyzer. The capacitance across the nanoogap was noted to change with probing and when target DNA solution is dropped between the gaps. The measured values of capacitance for the probe and target DNA solution are presented as a function of the frequency, where, the capacitance values were increased after immobilization of the target DNA and double increased after hybridization of the target DNA.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124977791","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706477
N. Hamid, B. Majlis, J. Yunas, A. Dehzangi
This paper presents an analysis and investigation of the effect thermal anealing treatment on structural and electrical properties of micro heater conductor. Conventional micro fabrication process has given a higher resistance impact on the heater conductor properties. Higher conductor resistance obtains higher source for micro heater to be operated. Since the micro heater is used for micron-sized devices, only small amount of source is consumed for the micro component. Therefore annealing process is necessary to reduce the resistance of metal conductor heater. In this work, the thermal annealing treatment process was carried out in nitrogen atmosphere at temperature of 450°C for 30 minutes. Structural properties were studied using Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) while an electrical property was investigated using heater characterization measurement and testing. The analysis shows that thermal annealing treatment improved the electrical properties of the heater conductor element and provided some changes in samples, such as the grain size increment or the decrease of the strain.
{"title":"Annealing effects on structural and electrical properties of micro heater conductor element","authors":"N. Hamid, B. Majlis, J. Yunas, A. Dehzangi","doi":"10.1109/RSM.2013.6706477","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706477","url":null,"abstract":"This paper presents an analysis and investigation of the effect thermal anealing treatment on structural and electrical properties of micro heater conductor. Conventional micro fabrication process has given a higher resistance impact on the heater conductor properties. Higher conductor resistance obtains higher source for micro heater to be operated. Since the micro heater is used for micron-sized devices, only small amount of source is consumed for the micro component. Therefore annealing process is necessary to reduce the resistance of metal conductor heater. In this work, the thermal annealing treatment process was carried out in nitrogen atmosphere at temperature of 450°C for 30 minutes. Structural properties were studied using Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) while an electrical property was investigated using heater characterization measurement and testing. The analysis shows that thermal annealing treatment improved the electrical properties of the heater conductor element and provided some changes in samples, such as the grain size increment or the decrease of the strain.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126993549","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706498
M. H. Abdullah, I. Saurdi, M. Rusop
A novel gradient index antireflective TiO2 compact layer (arc-TiO2) that can improve transmittance and prevent charge recombination has been developed for dye-sensitized solar cells by radio frequency magnetron sputtering. Effects of the presence of arc-TiO2 compact layer to the performance improvement of a DSSC were compared to that of a sol-gel derived compact layer (c-TiO2) by means of incident photon-to-current efficiency (IPCE) and open-circuit voltage decay (OCVD). The higher and right-shifted transmittance spectra in the arc-TiO2 based electrode have improved the sensitization effect of the DSSC in a specific region as shown by IPCE measurement. The slow decay behavior of the photo-voltage attributed to the merits brought by the arc-TiO2 and c-TiO2 compact layer has been evidenced by the OCVD measurement. An improvement in the overall conversion efficiency of 7% increment compared to the cell with c-TiO2 compact layer is mainly responsible for the higher transmittance and fewer recombination effects of the arc-TiO2 compact layer employed in the DSSC.
{"title":"Effect of RF sputtered arc-TiO2 and sol-gel c-TiO2 compact layers on the performance of dye-sensitized solar cell","authors":"M. H. Abdullah, I. Saurdi, M. Rusop","doi":"10.1109/RSM.2013.6706498","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706498","url":null,"abstract":"A novel gradient index antireflective TiO2 compact layer (arc-TiO2) that can improve transmittance and prevent charge recombination has been developed for dye-sensitized solar cells by radio frequency magnetron sputtering. Effects of the presence of arc-TiO2 compact layer to the performance improvement of a DSSC were compared to that of a sol-gel derived compact layer (c-TiO2) by means of incident photon-to-current efficiency (IPCE) and open-circuit voltage decay (OCVD). The higher and right-shifted transmittance spectra in the arc-TiO2 based electrode have improved the sensitization effect of the DSSC in a specific region as shown by IPCE measurement. The slow decay behavior of the photo-voltage attributed to the merits brought by the arc-TiO2 and c-TiO2 compact layer has been evidenced by the OCVD measurement. An improvement in the overall conversion efficiency of 7% increment compared to the cell with c-TiO2 compact layer is mainly responsible for the higher transmittance and fewer recombination effects of the arc-TiO2 compact layer employed in the DSSC.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121743535","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706524
I. Saurdi, M. H. Mamat, M. Musa, M. Amalina, M. H. Abdullah, M. Rusop
In this work, TiO2 photoanode have been prepared by mixing the commercial titania powder P-25 with a titanium sol gel. In order to improve the mixing condition the paste was gone through the ultrasonic treatment. After that, the doctor blade technique was used to deposit TiO2 paste on ITO-coated glass substrate. There were two monolayer photoanodes with ultrasonic and without ultrasonic TiO2 pastes of about the same thickness have been prepared and their effects on the overall cell performances of the DSSC were compared. From the solar simulator measurement the solar energy conversion efficiency (η) of 2.6642% under AM 1.5 was obtained with the ultrasonic photoanode DSSC which correspond to the short-circuit photocurrent density (Jsc) and open-circuit voltage (Voc) of 7.2552 mA/cm2 and 0.5168 V, respectively, while 1.3127% conversion efficiency (η) obtained from without ultrasonic TiO2 photoanode. The TiO2 photoanode with ultrasonic were efficiently in the fabrication process of dye-sensitized solar cells (DSSCs), where the improvement which was almost double from unsonicated film for the overall energy conversion efficiency (η) that achieved for the sonicated TiO2 photoanode with the present of PEG.
{"title":"Photoanode of nanostructured TiO2 prepared by ultrasonic irradiation assisted of sol-gel with P-25 for dye-sensitized Solar Cells","authors":"I. Saurdi, M. H. Mamat, M. Musa, M. Amalina, M. H. Abdullah, M. Rusop","doi":"10.1109/RSM.2013.6706524","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706524","url":null,"abstract":"In this work, TiO2 photoanode have been prepared by mixing the commercial titania powder P-25 with a titanium sol gel. In order to improve the mixing condition the paste was gone through the ultrasonic treatment. After that, the doctor blade technique was used to deposit TiO2 paste on ITO-coated glass substrate. There were two monolayer photoanodes with ultrasonic and without ultrasonic TiO2 pastes of about the same thickness have been prepared and their effects on the overall cell performances of the DSSC were compared. From the solar simulator measurement the solar energy conversion efficiency (η) of 2.6642% under AM 1.5 was obtained with the ultrasonic photoanode DSSC which correspond to the short-circuit photocurrent density (Jsc) and open-circuit voltage (Voc) of 7.2552 mA/cm2 and 0.5168 V, respectively, while 1.3127% conversion efficiency (η) obtained from without ultrasonic TiO2 photoanode. The TiO2 photoanode with ultrasonic were efficiently in the fabrication process of dye-sensitized solar cells (DSSCs), where the improvement which was almost double from unsonicated film for the overall energy conversion efficiency (η) that achieved for the sonicated TiO2 photoanode with the present of PEG.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127750273","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706469
Ahmad Anwar Zainuddin, J. Karim, A. Nordin, M. S. Pandian, S. Khan
We present the design and analysis result of a low power, low noise, 20 MHz CMOS-MEMS oscillators. To perform oscillator circuit simulations, the CMOS-MEMS resonator (Clamped-Clamped beam) was modeled using its RLC equivalent circuits. For a MEMS resonator to be able to function as an oscillator it needs to be coupled with supporting amplifier circuits. The MEMS beam resonator has 73dB insertion loss which translates to motional resistance of Rx=3MΩ, capacitance, Cx=4.58aF and inductance, Lx=14.5H respectively. The amplifier design is based on the requirement for oscillation, which is, the loop gain of one and the zero phase shifts. For this work, the pierce circuit topology was chosen due to its simplicity and high frequency stability. Both the amplifier and beam resonators were designed using Silterra's CMOS technology. The design of the amplifier comprises of 6 transistors, which are integrated with the MEMS beam resonator to form an oscillator. The proposed CMOS-MEMS oscillators is capable of generating 20 MHz clocks. The beam resonators require approximately 40VDC and 400mV, VAC to vibrate. The actuation was simulated and measured using Finite modeling software, FEM and Cadence to obtain the desired design parameters. The design of 20MHz oscillator produces output power -1.45dBm by using 1.8V power supply.
{"title":"Design and simulation of 20MHz oscillator using CMOS-MEMS beam resonators","authors":"Ahmad Anwar Zainuddin, J. Karim, A. Nordin, M. S. Pandian, S. Khan","doi":"10.1109/RSM.2013.6706469","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706469","url":null,"abstract":"We present the design and analysis result of a low power, low noise, 20 MHz CMOS-MEMS oscillators. To perform oscillator circuit simulations, the CMOS-MEMS resonator (Clamped-Clamped beam) was modeled using its RLC equivalent circuits. For a MEMS resonator to be able to function as an oscillator it needs to be coupled with supporting amplifier circuits. The MEMS beam resonator has 73dB insertion loss which translates to motional resistance of Rx=3MΩ, capacitance, Cx=4.58aF and inductance, Lx=14.5H respectively. The amplifier design is based on the requirement for oscillation, which is, the loop gain of one and the zero phase shifts. For this work, the pierce circuit topology was chosen due to its simplicity and high frequency stability. Both the amplifier and beam resonators were designed using Silterra's CMOS technology. The design of the amplifier comprises of 6 transistors, which are integrated with the MEMS beam resonator to form an oscillator. The proposed CMOS-MEMS oscillators is capable of generating 20 MHz clocks. The beam resonators require approximately 40VDC and 400mV, VAC to vibrate. The actuation was simulated and measured using Finite modeling software, FEM and Cadence to obtain the desired design parameters. The design of 20MHz oscillator produces output power -1.45dBm by using 1.8V power supply.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128140820","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706556
Mohd H. S. Alrashdan, B. Majlis, A. A. Hamzah, Noraini Marsi
Piezoelectric Micro-Power Harvester (PMPH), harvests mechanical vibration sources available in the environment and converts it to usable electric power via piezoelectric effects. The low power requirements and small device dimensions enable PMPH to supply enough power necessary to a variety of applications such as wireless sensor nodes, wrist watches and cell phone signals, thus proving to be an excellent alternative source for traditional lithium iodide battery especially in body sensor nodes. In this paper we design PMPH that is able to harvest environmental vibration sounds and convert it to usable electrical power for artificial cochlea. Spring mass damper system with single degree of freedom is used to model PMPH. COMSOL Multiphysics 4.2 is used to simulate PMPH. a linear relationship between voltage and external load for piezoelectric materials during Static analysis is observed, Eigenfrequency is used to find the resonance frequencies for six modes of operation and its deflection shape, PMPH harvest the maximum acoustic vibration at first mode of operation at 589 Hz. Simulation results using Transient analysis show that PMPH total displacement about 6 μm and output voltage at center of piezoelectric material about 4*10-15Vp-p at steady state and can harvest acoustic vibration at 598Hz and convert it to electric power about 23nW, which is sufficient for cochlear implant application.
{"title":"Design and simulation of piezoelectric micro power harvester for capturing acoustic vibrations","authors":"Mohd H. S. Alrashdan, B. Majlis, A. A. Hamzah, Noraini Marsi","doi":"10.1109/RSM.2013.6706556","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706556","url":null,"abstract":"Piezoelectric Micro-Power Harvester (PMPH), harvests mechanical vibration sources available in the environment and converts it to usable electric power via piezoelectric effects. The low power requirements and small device dimensions enable PMPH to supply enough power necessary to a variety of applications such as wireless sensor nodes, wrist watches and cell phone signals, thus proving to be an excellent alternative source for traditional lithium iodide battery especially in body sensor nodes. In this paper we design PMPH that is able to harvest environmental vibration sounds and convert it to usable electrical power for artificial cochlea. Spring mass damper system with single degree of freedom is used to model PMPH. COMSOL Multiphysics 4.2 is used to simulate PMPH. a linear relationship between voltage and external load for piezoelectric materials during Static analysis is observed, Eigenfrequency is used to find the resonance frequencies for six modes of operation and its deflection shape, PMPH harvest the maximum acoustic vibration at first mode of operation at 589 Hz. Simulation results using Transient analysis show that PMPH total displacement about 6 μm and output voltage at center of piezoelectric material about 4*10-15Vp-p at steady state and can harvest acoustic vibration at 598Hz and convert it to electric power about 23nW, which is sufficient for cochlear implant application.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125599512","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706499
Sh. Nadzirah, U. Hashim
TiO2 thin film was deposited on a silicon dioxide substrate using a sol-gel method and the film was annealed at 300, 500 and 700°C. Aluminum interdigitated electrodes were fabricated on the deposited TiO2 thin film via simple lithography method. The influence of thermal annealing towards the morphological and electrical properties were studied. X-ray diffraction (XRD) shows that crystalline rutile structure growth at very low temperature whereas field emission electron microscopy (FESEM) exhibits nanoparticles with an average 21 mm in size. The current flows between the fabricated interdigitated electrodes were extremely small at -5 to 5 V applied which were decreased as the annealing temperature increases with average barrier height was 0.8 eV.
{"title":"Effects of annealing temperature on current-voltage characteristics of TiO2 thin film by sol-gel process on silicon substrate for biosensor application","authors":"Sh. Nadzirah, U. Hashim","doi":"10.1109/RSM.2013.6706499","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706499","url":null,"abstract":"TiO2 thin film was deposited on a silicon dioxide substrate using a sol-gel method and the film was annealed at 300, 500 and 700°C. Aluminum interdigitated electrodes were fabricated on the deposited TiO2 thin film via simple lithography method. The influence of thermal annealing towards the morphological and electrical properties were studied. X-ray diffraction (XRD) shows that crystalline rutile structure growth at very low temperature whereas field emission electron microscopy (FESEM) exhibits nanoparticles with an average 21 mm in size. The current flows between the fabricated interdigitated electrodes were extremely small at -5 to 5 V applied which were decreased as the annealing temperature increases with average barrier height was 0.8 eV.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"368 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134435310","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 : 2013-09-01DOI: 10.1109/RSM.2013.6706549
Huey Sia Lim, N. Nayan, M. Z. Sahdan, S. Dahlan, M. K. Suaidi, F. M. Johar, G. Kiani
Tin oxide (SnO2) films were grown by radio frequency magnetron sputtering at room temperature condition on glass substrates at various deposition times from 10 to 30 minutes with 10 minutes time intervals. A ceramic target of tin oxide was used and sputtering process with the argon and oxygen flow rate of 25 sccm and 8 sccm, respectively. The power given to the system is 225 W and total chamber pressures of 8.25 mTorr were used during the deposition. The deposition rate of SnO2 thin film at this condition was 15.28 nm/minute. The morphology and roughness of the films were analyzed by FESEM and AFM, respectively. In general, the grain size of SnO2 increased with the film thickness. Sheet resistances and electrical resistivity of the films were measured by probe station. Sheet resistance decreased with the film thickness increased. While the electrical resistivity directly proportional to the film thickness.
{"title":"Physical properties of tin oxide thin films deposited using magnetron sputtering technique","authors":"Huey Sia Lim, N. Nayan, M. Z. Sahdan, S. Dahlan, M. K. Suaidi, F. M. Johar, G. Kiani","doi":"10.1109/RSM.2013.6706549","DOIUrl":"https://doi.org/10.1109/RSM.2013.6706549","url":null,"abstract":"Tin oxide (SnO2) films were grown by radio frequency magnetron sputtering at room temperature condition on glass substrates at various deposition times from 10 to 30 minutes with 10 minutes time intervals. A ceramic target of tin oxide was used and sputtering process with the argon and oxygen flow rate of 25 sccm and 8 sccm, respectively. The power given to the system is 225 W and total chamber pressures of 8.25 mTorr were used during the deposition. The deposition rate of SnO2 thin film at this condition was 15.28 nm/minute. The morphology and roughness of the films were analyzed by FESEM and AFM, respectively. In general, the grain size of SnO2 increased with the film thickness. Sheet resistances and electrical resistivity of the films were measured by probe station. Sheet resistance decreased with the film thickness increased. While the electrical resistivity directly proportional to the film thickness.","PeriodicalId":346255,"journal":{"name":"RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115141403","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}
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