Now showing items 61-80 of 253

    • Electrode design and planar uniformity of anodically etched small area porous silicon 

      Ahmed, N. M.; Zaliman, Sauli, Prof. Madya; Uda, Hashim, Prof. Dr.; Zul Azhar, Zahid Jamal, Prof. Dr. (American Institute of Physics, 2009-06-01)
      Porous silicon layer microstructure is sensitive to many parameters, which need to be controlled during etching. These include not only anodization time, current density, applied potential and electrolyte composition but ...
    • A silicon-oxide-silicon vertically separated electrode nanogap device structure 

      Noor, N. H. M.; Uda, Hashim, Prof. Dr.; Muhamad Emi Azry, Shohini; Nuri, A. M. M. (American Institute of Physics, 2009-06-01)
      In this study, we present a simple method to form a nanogap between two silicon contacts separated by a thin oxide gap. We also demonstrate the validity of dielectric spectroscopy results of two wafer samples (different ...
    • CdS film thickness characterization by R.F. magnetron sputtering 

      Uda, Hashim, Prof. Dr.; Kasim, Abdul Rahman; Hakim; Mohd Azri, Othman (American Institute of Physics, 2009-06-01)
      In this work, cadmium sulphide (CdS) target with 99.999% purity was used as a target in RF magnetron sputtering. The sputtering experiment was conducted onto silicon oxide substrates at different temperatures ranging from ...
    • Nanowire formation using electron beam lithography 

      Rahman, S. F. A.; Uda, Hashim, Prof. Dr.; Mohammad Nuzaihan, Md Nor; Mohamed Nuri, A. M.; Mohamad Emi Azri, Shohini; Salleh, S. (American Institute of Physics, 2009-06-01)
      Miniaturization and performance improvements are driving the electronics industry to shrink the feature size of semiconductor device. Because of its diffraction limit, conventional photolithography is becoming increasingly ...
    • Technical study of digital display using Peripheral Interface Controller (PIC) microcontroller based system 

      Mohd Nasir, Haron; Uda, Hashim, Prof. Dr. (Universiti Malaysia Pahang, 2009-06-20)
      Digital display system is the most popular technology and most compatible with the embedded system devices. The word digital is most commonly used in computing and electronics, especially where real-world information ...
    • Development of nanogap based dielectric biosensor for label-free medical diagnostic analytical measurement 

      A., Mat Taib; Uda, Hashim, Prof. Dr.; N. A., Yusof; Th. S., Dhahi (Universiti Malaysia Pahang, 2009-06-20)
      Biosensor with electrode distances 75 nm and highly sensitive and selective is proposed in this research. The target application is the label-free detection of bio-molecular interaction for medical diagnostic ...
    • Design of digital control frequency sinusoidal wave generator for dielectric analyzer 

      A., Saifullah; Uda, Hashim, Prof. Dr. (Universiti Malaysia Pahang, 2009-06-20)
      The dielectric analyses are usually done using capacitance measurement technique. A set of sinusoidal wave frequency are applied to the capacitance. This paper is about the design of digital control frequency of ...
    • Pattern designed for combination of optical lithography and electron beam lithography 

      S. Fatimah, Abd Rahman; Uda, Hashim, Prof. Dr.; Mohammad Nuzaihan, Md Nor; A. M., Mohamed Nuri; Muhamad Emi Azri, Shohini (Universiti Malaysia Pahang, 2009-06-20)
      In this paper the fabricated pattern of nanometer and micrometer structures created with electron beam lithography (EBL) and optical lithography on silicon on insulator (SOI) material is presented. The resist used to ...
    • Man-2403 resist development for electron beam lithography process 

      Nur Hamidah, Abdul Halim; Uda, Hashim, Prof. Dr.; Mohammad Nuzaihan, Md Nor (Universiti Malaysia Pahang, 2009-06-20)
      Line-width of resist patterns is more susceptible to the developing time than the thickness of the undeveloped resist. This project focused on the development of MaN-2403 resist for e-beam lithography process. The ...
    • Nanogap biosensor development for DNA immobilization and hybridization detection 

      Th. S., Dhahi; Uda, Hashim; N. M., Ahmed; A., Mat Taib (Universiti Malaysia Pahang, 2009-06-20)
      In the past two decades, the biological and medical fields have seen great advances in the development of biosensors and biochips capable of characterizing and quantifying biomolecules. To understand the important ...
    • Development of nanogap automated permittivity measurement system for DNA hybridization detection kit 

      Saifullah, A.; Azri, M. E.; Uda, Hashim, Prof. Dr. (Institute of Electrical and Electronics Engineering (IEEE), 2009-12-14)
      The Nanogap Automated Permittivity Measurement System (APMS) are fabricated as low cost, portable and label free DNA hybridization detection kit. The nanogap capacitor can react as a dna sensor. The difference in dielectric ...
    • A review on the electrochemical sensors and biosensors composed of nanogaps as sensing material 

      Dhahi, T. H. S.; Uda, Hashim, Prof. Dr.; Ahmed, N. M.; Mat Taib, A. (National Institute of Research and Development for Optoelectronics, 2010)
      In the past two decades, the biological and medical fields have seen great advances in the development of biosensors and biochips capable of characterizing and quantifying biomolecules.To understand the important relationship ...
    • Silicon Nanowires Based DNA Biosensor 

      Uda, Hashim, Prof. Dr.; Siti Fatimah, Abdul Rahman; Muhammad Emi Azri, Shohini (Malaysia Association of Research Scientists (MARS), 2010-02-04)
      This research describes the fabrication of silicon nanowire for DNA hybridization detection in biosensor application. The SiNWs are fabricated by electron beam lithography and followed by deposition of contact metals. Aurum ...
    • Theoretical and experimental study towards fabrication of nanogap dielectric biosensor by reversed spacer lithography 

      Uda, Hashim, Prof. Dr.; Muhamad Emi Azri, Shohini (American Institute of Physics, 2010-03-11)
      A reversed spacer patterning technology using a sacrificial layer and a chemical vapor deposition (CVD) spacer layer has been developed, and is demonstrated to achieve sub-50 nm structures with conventional dry etching. ...
    • Nanogap Dielectric Capacitor for Label Free Bio-Molecules Detection 

      Uda, Hashim, Prof. Dr.; Asmah, Mat Taib; Azizullah, Saifullah; Muhammad Emi, Azri Shohini; Thikra, S. Dhahi (Malaysian Invention and Design Society (MINDS), 2010-05-14)
      This research demonstrating that nanogap biosensor was fabricated by standard CMOS technologies function as extremely sensitive and selective biosensor for biomolecular detection and medical diagnostic application using ...
    • Nanogap Biosensor 

      Arinah, Ab Rahman; Muhamad Emi Azri, Sohini (Universiti Sains Malaysia, 2010-05-26)
      A biosensor is commonly defined as an analytical device that uses a biological recognition system to target molecules or macromolecules. Biosensors can be coupled to a physiochemical transducer that converts this recognition ...
    • A study for optimum productivity yield in 0.16μm mixed of wafer fabrication facility 

      Mohd Azizi, Chik; Ve, Chun Yung; Balakrishna, Puvaneswaran; Uda, Hashim, Prof. Dr.; Ibrahim, Ahmad; Bashir, Mohamad (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-28)
      This research is to study the opportunity to achieve optimum productivity yield in 0.16μm product mixed through understanding the impact of loading utilization towards the capacity. The study is important to model the ...
    • ISFET for pH Sensor 

      Mohd Naim, Haron; Mustaqim Rahimi, Mokhtar (Universiti Sains Islam Malaysia (USIM), 2010-09-26)
      ISFET is an ionic Sensitive Field Effect Transistor that has similar structure to that of a conventional MOSFET.
    • Design development of SOI based biologically sensitive field-effect transistor (Bio-FET) for earlier detection of cancer cell 

      Foo, Kai Loong; Uda, Hashim, Prof. Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Cancer cell is a class of disease in which group of cell that display uncontrolled growth, invasion and metastasis. For late stage of cancer cell detection, it is classified as an incurable disease. Hence, SOI Based ...
    • Application of e-beam lithography for nanowire development 

      S. Fatimah, Abd Rahman; Uda, Hashim, Prof. Dr.; Mohammad Nuzaihan, Md Nor (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Miniaturization and performance improvements are driving the electronics industry to shrink the feature size of semiconductor device. Because of its diffraction limit, conventional photolithography is becoming increasingly ...