A5031376674- Semiconductor materials and devices
- Semiconductor materials and interfaces
- Advanced Semiconductor Detectors and Materials
- Semiconductor Quantum Structures and Devices
- Nanofabrication and Lithography Techniques
- Diamond and Carbon-based Materials Research
- Silicon Carbide Semiconductor Technologies
- Metal and Thin Film Mechanics
- Photonic and Optical Devices
- Integrated Circuits and Semiconductor Failure Analysis
- Chalcogenide Semiconductor Thin Films
- Microfluidic and Capillary Electrophoresis Applications
- Advancements in Photolithography Techniques
- Photorefractive and Nonlinear Optics
- Advanced Surface Polishing Techniques
- Innovative Microfluidic and Catalytic Techniques Innovation
- Plasma Diagnostics and Applications
- Acoustic Wave Resonator Technologies
- Electrowetting and Microfluidic Technologies
- Advanced Fiber Optic Sensors
- Force Microscopy Techniques and Applications
- Laser Material Processing Techniques
- Ion-surface interactions and analysis
- Advanced Fiber Laser Technologies
- Advancements in Semiconductor Devices and Circuit Design
RMIT University
2012-2024
University of Bologna
2023
MIT University
2014
Commonwealth Scientific and Industrial Research Organisation
2004-2013
CSIRO Manufacturing
2001-2013
Materials Science & Engineering
2007-2012
Telstra (Australia)
1995-1997
Data61
1987-1994
Brown University
1992
Jenner Institute
1898
(1939). LXIX. The evidence for a superlattice in the nickel-iron alloy Ni3Fe. London, Edinburgh, and Dublin Philosophical Magazine Journal of Science: Vol. 27, No. 185, pp. 742-753.
Droplet based microfluidics are promising new tools for biological and chemical assays. In this paper, a high throughput sensitivity microfluidic droplet platform is described in vitroprotein expression using crude Escherichia coli S30 extract. A flow-focusing polymethylmethacrylate (PMMA) microchip was designed integrated with different functions involving generation, storage, separation detection. The material used the chip superior to previously tested polydimethylsiloxane (PDMS) due its...
A polydimethylsiloxane microchip consisting of a T-junction microchannel network and thin glass capillary has been developed for the generation microbubbles. The is used to produce an ultrathin gas jet controllably block straight liquid channel, thereby increasing local velocity near intersection. Liquid flow rate, viscosity, pressure, inner diameter are varied investigate effect on bubble generation. Bubbles with down 4.5 μm can be produced at high rate 7.5 kHz using 2 μm.
This paper describes the characterization by x-ray photoelectron spectroscopy (XPS) of several Ge-doped silica glasses before and after reactive ion etching (RIE) in sulphur hexafluoride (SF6). These have been commonly used production optical waveguides, with varying amounts GeO2 dopant. Surface composition modifications as a function conditions rate were studied, modified Auger parameter α′ utilized tool for detecting small chemical shift changes. Both Ge LMM energy values indicated that...
The combined use of film transparency masks and dry laminar resist (Shipley 5038) has enabled the rapid fabrication prototype devices for droplet generation. resolution limit structures in was controlled by type mask (transparency or electron beam Cr mask), density pattern (2400 5080 dpi) thickness range 35–140 µm. Flow-focusing with master patterns based on were replicated as a Ni shim hot embossed into Plexiglas 99524. These used to generate oil/water droplets well-defined dependence...
The specific contact resistivity of a metal-semiconductor ohmic can be determined using number different test structures, and several these use the transmission line model approach. In circular structure, concentric contacts have equipotentials in semiconductor layer, equations used to describe their current-voltage behavior. Using structures with two three sizes, we present new technique for determining resistivity. analytical expressions are developed presented, finite-element modeling...
Micropatterning of surfaces with varying chemical, physical and topographical properties usually requires a number fabrication steps. Herein, we describe micropatterning technique based on plasma enhanced chemical vapour deposition (PECVD) that deposits both protein resistant repellent surface chemistries in single step. The resulting multifunctional, selective are capable spatially controlled adhesion, geometric confinement cells the site specific enzyme mediated peptide self-assembly.
The hot embossing properties of cyclic olefin copolymer (COC) have been examined as a function comonomer content. Six standard grades COC with varying norbornene content (61–82 wt%) were used in these experiments order to provide range glass transition temperatures, Tg. All exhibited sharp increases embossed depth over critical temperature. temperature increased linearly for both 35 and 70 µm deep structures. At temperatures above this transition, the dimensions patterns essentially...
The Cross-Kelvin Resistor test structure is commonly used for the extraction of specific contact resistance ohmic contacts. Analysis using this are generally based on a two-dimensional model that assumes zero voltage drop in semiconductor layer direction normal to plane contact. This paper uses three-dimensional (3-D) analysis show magnitude errors introduced by assumption, and illustrates conditions under which 3-D should be used. presents first time universal error correction curves...
We have for the first time shown that CH4/H2 metalorganic reactive ion etching (MORIE) of Hg1−xCdxTe is feasible mesa-etching to dimensions less than 2 μm. Process parametric effects on etch rate, surface anisotropy, and stoichiometry were studied with particular emphasis methane hydrogen MORIE process ratio as well alloy composition. A laser interferometric detection scheme was employed in situ measurement rates end-point detection. self-induced etch-stop mechanism certain etch-gas...
Specular HgTe–CdTe superlattice epilayers have been obtained on two 2-in. diam GaAs or sapphire wafers per growth run using a horizontal metalorganic chemical vapor deposition (MOCVD) reactor in which the pyrolysis of organometallics is induced by cracking susceptor suspended above substrates. This enables superlattices below 300 °C standard precursors dimethyl cadmium, diethyl telluride, and elemental mercury. Annealing at 350 converts them to homogeneous Hg1−xCdxTe. Compositional profiles...
Droplet-based in vitro compartmentalization (IVC) platform is a powerful tool protein analysis. Reliable formation of microdroplets important for the development microfluidic chip. In this study, we will examine effect surfactants on flow focusing device which needed enzyme evolution. Surfactants Span 80 and Tween 20 are used continuous dispersed phases, respectively. The droplet was affected distinguishably with presence 20. size droplets decreased as concentration increased. And decrease...
The reactive ion etching of substrates used in piezoelectric devices (quartz, fused silica, LiNbO3, LiTaO3, and sapphire) has been characterized CHF3/CF4-based plasmas. For quartz a regime ion-enhanced chemical similar to that established by Steinbruchel [Ch. Steinbruchel, J. Electrochem. Soc. 130, 648 (1983)] for CF4 was indicated over the range compositions from CF4=1 CHF3=1. In this regime, etch rate dependent on square root rf bias voltage (V1/2). both silica at maximum plasma decreased...
The authors demonstrate ultrastrong (34 dB) UV written gratings in rib waveguides fabricated from PECVD grown germanosilicate trilayers without the aid of hydrogen loading.