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Articles 1 - 7 of 7
Full-Text Articles in Electronic Devices and Semiconductor Manufacturing
Optimized Transconductance Designs To Enhance The Linearity Performance Of Rf Front-End Receiver Circuits In 130 Nm Cmos Technology, Nandini Vitee
Optimized Transconductance Designs To Enhance The Linearity Performance Of Rf Front-End Receiver Circuits In 130 Nm Cmos Technology, Nandini Vitee
Student Works (2020-2029)
Highly linear front-end circuits are greatly desired for wireless receivers to improve the dynamic range. However, intermodulation distortions caused by the non-linear transconductor current limits the linearity of the front-end receiver circuit in CMOS technologies. In addition to the inherent nonlinear effect, the downscaling of CMOS further exacerbates the linearity of the circuit due to lower voltage headroom and high-field mobility. Thus, it is essential to develop effective circuit techniques that can aid linearity enhancement without jeopardizing other preferred performances such as low noise, high conversion gain, and low-power consumption. In this thesis, two different high linear transconductors are presented …
Investigation Of Space-Charge-Limited Conduction Mechanisms In Fe3o4-Y-Fe2o3 Based On Sio2/N-Type Si Substrate, Nik Zumaihan Nik Nadia Aina
Investigation Of Space-Charge-Limited Conduction Mechanisms In Fe3o4-Y-Fe2o3 Based On Sio2/N-Type Si Substrate, Nik Zumaihan Nik Nadia Aina
Student Works (2020-2029)
In this work, thin films of functionalized Fe3O4-γ-Fe2O3 NPs deposited on n-type Si substrate was formed by self-assembly. The co-precipitation method was involved to synthesis the bare iron oxide NPs and the particles were altered to optimum pH 12 by using NH4OH. Iron oxide NPs were then undergone modification process with addition of 0.4 g oleic acid and 1.63 mmol functionalization 4-pentynoic acid. For electrical characterization of self-assembled 4-pentynoic acid functionalized Fe3O4-γ-Fe2O3 NPs on SiO2/n-Si substrate, the charge conduction mechanisms were quantitatively investigated and analyzed through the oxides for different heat treatment temperatures (70-300oC). In this study, the Ohm’s Law …
Low-Power Cmos Cross-Coupled Differential-Drive Rectifier For Ambient Radio Frequency Energy Harvesting Systems, Sing Leung Gabriel Chong
Low-Power Cmos Cross-Coupled Differential-Drive Rectifier For Ambient Radio Frequency Energy Harvesting Systems, Sing Leung Gabriel Chong
Student Works (2020-2029)
Wireless Sensor Node (WSN) for the Internet of Things (IoT) and Internet of Everything (IoE) will require harvesting low-power ambient Radio Frequency (RF) energy to achieve self-power capabilities, alleviating the need of batteries. The research title of “Low-Power CMOS Cross-Coupled Differential-Drive Rectifier for Ambient Radio Frequency Energy Harvesting Systems” relates to the design of integrated circuit (IC) rectifiers for low-power ambient RF energy harvesting (RFEH) in complementary-metal-oxide-semiconductor (CMOS) technology. The adoption of CMOS for the rectifier designs is to achieve small physical form factor, low-cost, and system-on-chip (SoC) integration. The rectifier is the main circuit in an ambient RFEH system …
Hybrid Microwave Power Amplifiers For Broadband Communication, Sangaran Pragash
Hybrid Microwave Power Amplifiers For Broadband Communication, Sangaran Pragash
Student Works (2020-2029)
The software-defined radio is the future of radio technology. The development of a broadband power amplifier is the most challenging radio component to design in achieving software-defined radio goals due to the PA gain-bandwidth limitation. The distributed power amplifier (DPA) overcomes the limitation by combining output power from several transistors in an additive fashion. Matrix Amplifier (MA) consists of two or more DPA stacked together in a multiplicative manner. In this project, a high power and high gain DPA for a two-way radio system is demonstrated. The DPA exhibits 10W output power and 32dB gain across the frequency range of …
Comparison Of Pressure-Assist Silver Sintering To Tin Silver Solder Alloy As Die Attach Material In High Power Semiconductor, Tolentino Erik Nino
Comparison Of Pressure-Assist Silver Sintering To Tin Silver Solder Alloy As Die Attach Material In High Power Semiconductor, Tolentino Erik Nino
Student Works (2020-2029)
The research is focused on pressure-assisted silver sintering material that is compared to tin silver solder alloy paste as used in power electronics. Material characterization, electrical tests, and reliability tests were conducted in the experiment. After drying process, it was observed that the Ag sintering paste height was reduced to approximately 40 percent. Die attach shear test showed that the average reading is about from 200 to 600 grams which are already enough to hold the dice before proceeding to the pressure sintering process. X-ray revealed that the void percent for SnAg paste sample is about 1.5 percent while pressure-assist …
3-Dimensional Carbon Micro-Electro Mechanical System (Mems) Electrode For Potential Dielectrophoretic Hepatic Cell Patterning Application, Wan Yahya Wan Nurlina
3-Dimensional Carbon Micro-Electro Mechanical System (Mems) Electrode For Potential Dielectrophoretic Hepatic Cell Patterning Application, Wan Yahya Wan Nurlina
Student Works (2020-2029)
The maintenance of liver tissue unique pattern remains a great challenge in the generation of functional engineered liver tissue in vitro. This thesis presents a carbon dielectrophoresis (DEP) based cell patterning for generating hepatic cell constructs, mimicking biological hepatic lobule. A new design of electrode named interdigitated radiating-strips electrode (IRSE) was simulated and optimized using COMSOL Multiphysics 4.2a. The simulation result proved that IRSE is capable to provide uniform distribution of electric field for generating three-dimensional (3D) DEP force. The use of carbon electrodes has been an alternative to traditional metal electrodes and insulator structures for DEP applications since more …
Development Of Integrated Zinc Oxide Nanorods Coated Glass Substrate Sensing Device, Mohd Yusof Haziezol Helmi
Development Of Integrated Zinc Oxide Nanorods Coated Glass Substrate Sensing Device, Mohd Yusof Haziezol Helmi
Student Works (2020-2029)
A simple and practical cost-effective integrated zinc oxide (ZnO) nanorods coated glass substrate sensing device for humidity and formaldehyde vapor sensing applications is reported. The developed sensor device is composed of a commercial light-emitting diode (LED) and photodiode that correspondingly served as light source and detector which precisely positioned on a 3D printed sensor platform. A receiver circuit and Arduino platform were employed for signal amplification and processing. A uniform ZnO nanorods coating were grown on the surface of glass substrate via hydrothermal method by controlling the growth durations and coating length. A standard reference for the optimum working condition …