Publications
217 results found
Kiziroglou ME, Mukherjee AG, Vatti S, et al., 2010, Self-assembly of three-dimensional Au inductors on silicon, IET microwaves, antennas & propagation, Vol: 4, Pages: 1698-1703, ISSN: 1751-8733
Dou G, Wright R, Holmes A, et al., 2010, Solder Transfer of Lead Zirconate Titanate (PZT) Thin Films, 11th International Conference on Electronic Packaging Technology and High Density Packaging (ICEPT-HDP), Publisher: IEEE, Pages: 108-111
Ku ISY, Reddyhoff T, Choo JH, et al., 2010, A novel tribometer for the measurement of friction in MEMS, Tribology International, Vol: 43, Pages: 1087-1090, ISSN: 0301-679X
A new tribometer has been developed to determine friction under conditions that are representative of MEMS (micro-electro-mechanical-systems). The tribometer consists of a rotating silicon disc, loaded against a stationary silicon disc. Friction and film thickness values are measured using laser displacement techniques. In this study, two different test set-ups were used: a flat on flat specimen geometry, and a moving flat against a structured surface, similar to that of a miniature thrust pad bearing. Using this tribometer, hydrodynamic tests have been carried out with the specimens fully submerged in hydrocarbon lubricants. Results suggest that friction increases with sliding speed and decreases with increasing applied normal load, which is in accordance with the hydrodynamic theory. 2009 Elsevier Ltd. All rights reserved.
Pranonsatit S, Holmes AS, Lucyszyn S, 2010, Sectorised Horn Antenna Array Using an RF MEMS Rotary Switch, 22nd Asia-Pacific Microwave Conference (APMC), Publisher: IEEE, Pages: 1909-1913
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- Citations: 2
Reddyhoff T, Ku ISY, Choo JH, et al., 2009, Lubrication of high sliding MEMS
Effective lubrication for micro-electromechanical systems (MEMS) was studied. A new micro-tribometer was developed to measure friction and film thickness under conditions representative of MEMS. For hydrocarbon lubricants, friction increased with sliding speed and decreased with increasing applied normal load, which is in accord with hydrodynamic theory. Using low viscosity fluids, satisfactory friction coefficient values were obtained with negligible wear. Good agreement was obtained between experimental results and a finite difference model. This is an abstract of a paper presented at the World Tribology Congress (Kyoto, Japan 9/6-11/209).
Thorner LDA, Mitcheson PD, Holmes AS, et al., 2009, Scaling Laws for Energy Harvesters in a Marine Environment, PowerMEMS 09, Pages: 249-252, ISSN: 2151-3155
Howey DA, Holmes AS, Pullen KR, 2009, Measurement of stator heat transfer in air-cooled axial flux permanent magnet machines, 35th Annual Conference of the IEEE-Industrial-Electronics-Society (IECON 2009), Publisher: IEEE, Pages: 1197-1202
Pedder JEA, Holmes AS, Dyer PE, 2009, Improved model for the angular dependence of excimer laser ablation rates in polymer materials, APPLIED PHYSICS LETTERS, Vol: 95, ISSN: 0003-6951
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- Citations: 9
Howey DA, Pullen KR, Holmes AS, 2009, Radially resolved measurement of stator heat transfer in a rotor-stator disc system, International Journal of Heat and Mass Transfer, Vol: 53, Pages: 491-501, ISSN: 0017-9310
This paper describes a new experimental method for measuring stator heat transfer in a rotor–stator disc system using an electrical heater array. The system is partially blocked at the periphery, with radial outflow of rotor-pumped air from an inlet at stator centre. The aim is to improve thermal performance prediction for air-cooled disc type electrical machines. Local Nusselt numbers were measured for 0.6<r/R<1 at three non-dimensional gap ratios G=g/R=(0.0106,0.0212,0.0297) and rotational Reynolds numbers 3.7e4less-than-or-equals, slantReθless-than-or-equals, slant5.6e5. Transition at the stator is observed to occur at Reθ>3e5 for all gap ratios. Increased Nusselt numbers at the periphery are observed for all Reθ and G because of the ingress of ambient air along the stator due to the rotor pumping effect.
Bansal A, Howey DA, Holmes AS, 2009, Cm-Scale Air Turbine and Generator for Energy Harvesting from Low-Speed Flows, TRANSDUCERS 2009, International Solid-State Sensors, Actuators and Microsystems Conference, Publisher: IEEE, Pages: 529-532
Yates DC, Holmes AS, 2009, Preferred Transmission Frequency for Size-Constrained Ultralow-Power Short-Range CMOS Oscillator Transmitters, IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, Vol: 56, Pages: 1173-1181, ISSN: 1549-8328
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- Citations: 6
Wright S, Syms RRA, O'Prey S, et al., 2009, Comparison of Ion Coupling Strategies for a Microengineered Quadrupole Mass Filter, JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY, Vol: 20, Pages: 146-156, ISSN: 1044-0305
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- Citations: 12
Mukherjee AG, Vatti S, Kiziroglou ME, et al., 2009, Integration of self-assembled inductors with CMOS LC oscillators, Microwave Conference, 2009. EuMC 2009. European, Pages: 1876-1879
The quality factor (Q) of integrated inductors is of great importance to radio frequency applications. Monolithic integration of out-of-plane Au inductors with Complementary Metal-Oxide-Semiconductor (CMOS) LC oscillators is reported in this paper. The recently developed self-assembly process involves in-plane fabrication of Au inductors and subsequent rotation of the structure by surface tension forces of a melting Sn hinge. The CMOS compatibility of this process is demonstrated through the integration of an LC oscillator with the self-assembled inductor using post-CMOS processing. At a 1.48 GHz oscillation frequency, a phase noise of -95 dBc/Hz is reported at a 100 kHz frequency offset. Obtained results show this technique to be promising for the integration of high Q inductors with commercial RF systems.
Wright S, Syms RRA, O'Prey S, et al., 2009, Comparison of ion coupling strategies for a microengineered quadrupole mass spectrometer, J. Am. Soc. Mass Spect., Vol: 20, Pages: 146-156
Ku ISY, Reddyhoff T, Choo JH, et al., 2009, Lubrication performance of liquids of different viscosities in MEMS devices, Lake Buena Vista, FL, United states, Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2009, May 17, 2009 - May 21, 2009, Publisher: Society of Tribologists and Lubrication Engineers, Pages: 178-180
Howey DA, Holmes AS, Pullen KR, 2009, Measurement of stator heat transfer in air-cooled axial flux permanent magnet machines, 35th Annual Conference of the IEEE-Industrial-Electronics-Society, Publisher: IEEE, Pages: 1114-+, ISSN: 1553-572X
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- Citations: 4
Mukherjee AG, Vatti S, Kiziroglou ME, et al., 2009, Integration of self-assembled inductors with CMOS LC oscillators, Microwave Integrated Circuits Conference, 2009. EuMIC 2009. European, Publisher: IEEE, Pages: 523-526
Mitcheson PD, Yeatman EM, Rao GK, et al., 2008, Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices, Proceedings of the IEEE, Vol: 96, Pages: 1457-1486
Toh TT, Mitcheson PD, Holmes AS, et al., 2008, A continuously rotating energy harvester with maximum power point tracking, Journal of Micromechanics and Microengineering, Vol: 18
Pu SH, Laister A, Holmes A, et al., 2008, High-Q Continuously Tunable Zipping Varactors with Large Tuning Range, 20th Asia Pacific Microwave Conference (APMC 2008), Publisher: IEEE, Pages: 783-+
Mukherjee AG, Kiziroglou ME, Holmes AS, et al., 2008, MEMS post-processing of MPW dies using BSOI carrier wafers, MOEMS-MEMS 2008 Micro and Nanofabrication, Publisher: International Society for Optics and Photonics
Pedder JEA, Holmes AS, Booth HJ, 2008, Pulsed laser ablation of polymers for display applications, Conference on Photon Processing in Microelectronics and Photonics VII, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
Mukherjee AG, Kiziroglou ME, Holmes AS, et al., 2008, Die-level integration of metal MEMS with CMOS, Electronics System-Integration Technology Conference, 2008. ESTC 2008. 2nd, Publisher: IEEE, Pages: 169-174
Mukherjee AG, Kiziroglou ME, Holmes AS, et al., 2008, MEMS post-processing of MPW dies using BSOI carrier wafers, Conference on Micromachining and Microfabrication Process Technology XIII, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
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- Citations: 2
Kiziroglou ME, Mukherjee AG, Moseley RW, et al., 2008, Electrodeposition of Au for self-assembling 3D micro-structures, Conference on Micromachining and Microfabrication Process Technology XIII, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
Kiziroglou ME, Mukherjee AG, Moseley RW, et al., 2008, Electrodeposition of Au for self-assembling 3D microstructures, MOEMS-MEMS 2008 Micro and Nanofabrication, Publisher: International Society for Optics and Photonics
Lucyszyn S, Pranonsatit S, Choi JY, et al., 2007, (Invited Paper) Novel RF MEMS switches, Pages: 55-58
Yeatman EM, Mitcheson PD, Holmes AS, 2007, Micro-Engineered Devices for Motion Energy Harvesting, 2007 IEEE International Electron Devices Meeting, Pages: 375-378
Yeatman EM, Mitcheson PD, Holmes AS, 2007, Micro-Engineered Devices for Motion Energy Harvesting, 2007 IEEE International Electron Devices Meeting, Pages: 375-378
Toh TT, Bansal A, Hong G, et al., 2007, Energy Harvesting From Rotating Structures, PowerMEMS 2007, Pages: 327-330
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