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Leader in Integrated ICT Hardware & Systems

Ruth Houlihan - Staff Researcher

Contact

+353 (0)21 2346981
ruth.houlihan (at) tyndall (dot) ie

  • MNS (Circuits and Systems)

Dr Ruth Houlihan is a research scientist at Tyndall National Institute, Ireland. She graduated from the National University of Ireland, Galway in 1998 with a Mechanical Engineering degree, from University College Cork, Ireland in 2000 with a Masters in Engineering Science and in 2004 from the University of Southampton, UK with a Ph.D. in microsystems. She has worked over the years in inertial, RF and energy harvesting MEMS devices as device designer, process developer and device and system modeller. In particular, she has focused on the mechanical modelling of MEMS structures using finite element software. She has been PI for Enterprise Ireland funded projects, has worked on FP6 and FP7 European projects, ESA funded projects in addition to industrial contracts.

Research Grants

  • EI PC/2006/0129 (Enterprise Irl) €89,595.00 (06-NOV-06 / 05-JAN-08)
  • EI"Intelligent Reliability Circuitry for RF MEMS Capactive Switches" (Enterprise Irl) €76,500.00 (12-MAY-08 / 28-FEB-10)

Books

YearPublication

Peer Reviewed Journals

YearPublication
2012 Addendum:“A study of capacitance-voltage curve narrowing effect in capacitive microelectromechanical switches”[Appl. Phys. Lett. 93, 094101 (2008)]
Olszewski, Z.,Houlihan, R.,O’Mahony, C.,Duane, R (2012) Addendum:“A study of capacitance-voltage curve narrowing effect in capacitive microelectromechanical switches”[Appl. Phys. Lett. 93, 094101 (2008)]. : Applied Physics Letters. [Details]
2012 Experimental isolation of degradation mechanisms in capacitive microelectromechanical switches
Olszewski, Z,Houlihan, R,Ryan, C,O'Mahony, C,Duane, R (2012) Experimental isolation of degradation mechanisms in capacitive microelectromechanical switches. : Applied Physics Letters. [Details]
2009 Comment on Comparison of air breakdown and substrate injection as mechanisms to induce dielectric charging in microelectromechanical switches [Appl. Phys. Lett. 92, 043502 (2008)]
Olszewski, Z.,O'Mahony, C.,Houlihan, R.,Duane, R (2009) Comment on Comparison of air breakdown and substrate injection as mechanisms to induce dielectric charging in microelectromechanical switches [Appl. Phys. Lett. 92, 043502 (2008)]. : Applied Physics Letters. [Details]
2014 Reliability assessment of MEMS switches for space applications: laboratory and launch testing
Conor O’Mahony; Oskar Olszewski; Ronan Hill; Ruth Houlihan; Cormac Ryan; Ken Rodgers; Carmel Kelleher; Russell Duane;Martin Hill (2014) Reliability assessment of MEMS switches for space applications: laboratory and launch testing. : Journal of Micromechanics and Microengineering. [Details]
2005 Modelling squeeze film effects in a MEMS accelerometer with a levitated proof mass
Houlihan, Ruth and Kraft, Michael (2005) Modelling squeeze film effects in a MEMS accelerometer with a levitated proof mass. : Journal of Micromechanics and Microengineering. [Details]
2005 Characterization, modelling and performance evaluation of CMOS integrated multielectrode tunable capacitor (MTC)
Olszewski, Z.,Hilll, M.,O'Mahony, C.,Duane, R.,Houlihan, R (2005) Characterization, modelling and performance evaluation of CMOS integrated multielectrode tunable capacitor (MTC). : Journal of Micromechanics and Microengineering. [Details]
2014 A simple electrical test method to isolate viscoelasticity and creep in capacitive microelectromechanical switches
Ryan, C,Olszewski, Z,Houlihan, R,O'Mahony, C,Duane, R (2014) A simple electrical test method to isolate viscoelasticity and creep in capacitive microelectromechanical switches. : Applied Physics Letters. [Details]
2002 Modelling of an accelerometer based on a levitated proof mass
Houlihan, Ruth and Kraft, Michael (2002) Modelling of an accelerometer based on a levitated proof mass. : Journal of Micromechanics and Microengineering. [Details]

Other Journals

YearPublication

Conference Publications

YearPublication
Year2012 PublicationRoyal Irish Academy Communications and Radio Science Colloquium
Ryan, C. ,Olszewski, O. Z. ,Houlihan, R. ,O'Mahony, C.,Duane, R (2012) Design For Reliability in RF MEMS Capacitive Switches. : . [Details]
Year2014 PublicationInternational Conference and Exhibition on Integration Issues of Miniaturized Smart Systems (SSi 2014)
Alessandro Sanginaro, Danilo Demarchi, Gerold Schropfer, Sarah Zerbini, Magdalena Ekwinska, Ruth Houlihan (2014) System-aware Design Methodology for MEMS based on High-order Parametric Finite-Element Library Combined with Model-Order-Reduction. : . [Details]
Year2012 PublicationRAD2012: The First International Conference on Radiation and Dosimetry in Various Fields of Research
Ryan, C. ,Olszewski, O. Z. ,Houlihan, R. ,O'Mahony, C.,Duane, R (2012) Capacitive Microelectromechanical Switches for Space Applications. : . [Details]
Year2008 PublicationMicromechanics Europe 2008Micromechanics Europe 2008
Kuberappa, Y.,Hill, M.,O’Mahony, C.,Olszewski, O. Z.,Houlihan, R.,Verheggen, J (2008) Accurate RF simulations of MEMS Curled cantilever SwitchesAccurate RF simulations of MEMS Curled cantilever Switches. : . [Details]
Year2014 PublicationMicroneedles 2014Microneedles 2014
O’Mahony, C.,Grygoryev, K.,Lo Re, G.,Vereschagina, L.,Houlihan, R (2014) Microneedle-based Dry Electrodes for ECG and Respiration Rate MonitoringMicroneedle-based Dry Electrodes for ECG and Respiration Rate Monitoring. : . [Details]
Year2013 PublicationMicromechanics Europe 2013
Ryan, C.,Olszewski, Z.,Houlihan, R.,O’Mahony, C.,Duane, R (2013) Tether Design for Radio-Frequency Capacitive Switches. : . [Details]
Year2004 PublicationProceedings 6th Conference on Modeling and Simulation of Microsystems
Kham, MN and Houlihan, Ruth and Kraft, Michael (2004) Design and Simulation of a Mechanical Amplifier for Inertial Sensing Applications. : . [Details]
Year2003 PublicationTRANSDUCERS, Solid-State Sensors, Actuators and Microsystems, 12th International Conference on, 2003
Houlihan, Ruth and Koukharenko, E and Sehr, Harald and Kraft, Michael (2003) Optimisation, design and fabrication of a novel accelerometer. : . [Details]
Year2001 PublicationSPIE Micromachining and Microfabrication
Houlihan, Ruth P and Kukharenka, Alena and Gindila, Mircea and Kraft, Michael (2001) Analysis and design of a capacitive accelerometer based on a electrostatically levitated microdisk. : . [Details]
Year1999 Publication5th International Workshop on Thermal Investigations of ICs and Mircostructures, October 1999, Rome, Italy
Houlihan, R. and Kelly, G. and Lyden, C (1999) Development of behavioural models of resonant sensor elements subject to residual stress. : . [Details]
Year2014 PublicationEurosensors 2014
Z. Olszewski, R. Houlihan, R. O’Keeffe, M. O’Neill*, F. Waldron, A. Mathewson, N. Jackson (2014) A MEMS silicon-based piezoelectric AC current sensor. : . [Details]
Year2009 PublicationMicromechanics Europe 2009
Houlihan, R.,Olszewski, O. Z.,Duane, R.,O'Mahony, C.,Collins, P.,Mathewson, A (2009) System-Level Reliability of a Capacitive MEMS Switch. : . [Details]
Year2012 PublicationDesign, Test, Integration and Packaging of MEMS/MOEMS (DTIP), 2012 Symposium on
Olszewski, Oskar Z and Ryan, Cormac and Houlihan, Ruth and O'Mahony, Conor and Duane, Russell (2012) MEMS capacitive switch with stable actuation voltage over a broad temperature range. : . [Details]
Year2008 PublicationMicrowave Conference, 2008. EuMC 2008. 38th European
Sun, X and Brebels, S and Stoukatch, S and Jansen, R and Dussopt, L and Dubois, M-A and O'Mahony, C and Berberich, S and Houlihan, R and De Raedt, W (2008) Demonstration of Heterogeneous Integration of Technologies for a Ku-Band SiP Doppler Radar. : . [Details]
Year2008 PublicationMicromechanics Europe 2008; Aachen; Germany; September 28-30th
Kuberappa, Y and Hill, M and O’Mahony, C and Olszewski, Z and Houlihan, R and Verheggen, J (2008) Accurate RF Simulations of MEMS Curled Cantilever Switches. : . [Details]
Year2014 PublicationMicroneedles 2014, Baltimore, Maryland, 19-21st May
O'Mahony, Conor and Vereshchagina, Elizaveta and Grygoryev, Konstantin and Houlihan, Ruth (2014) A New Figure of Merit for Microneedle Reliability. : . [Details]
Year2013 PublicationMicromechanics Europe 2013
O'Mahony, Conor and Olszewski, Zbigniew (2013) and Houlihan, Ruth and Ryan, Cormac and Duane, Russell and Hill, Martin (2013) From Substrate to Space: Packaging and Deployment of RF MEMS Switches for Satellite Applications. : . [Details]
Year2013 PublicationMicromechanics Europe 2013
Ryan, Cormac and Olszewski, Zbigniew (2013) and Houlihan, Ruth and O'Mahony, Conor and Duane, Russell (2013) Comparison of tether designs for reliable operation of RF MEMS capacitive switches. : . [Details]
Year2012 PublicationRoyal Irish Academy Research Colloquium on Communications and Radio Science into the 21st Century
Ryan, Cormac and Olszewski, Zbigniew (2012) and Houlihan, Ruth and O'Mahony, Conor and Duane, Russell (2012) Design for reliabiity in RF MEMS capacitive switches. : . [Details]
Year2010 Publication7th ESA Round Table on MNT for Space Applications Workshop
Houlihan, R. and Collins, P. and Olszewski, Z. and Mathewson, A (2010) Reliability Enhancing Circuit for a Capacitive MEMS Switch. : . [Details]
Year2014 Publication9th ESA Round Table on Micro and Nano Technologies For Space Applications, Swiss Tech Convention Center, Lausanne, Switzerland
Houlihan, R. and Duane, R. and Ryan, C. and Mahony, C. O’ and Olszewski, Z (2014) Mechanical and dielectric reliability of RF MEMS capacitive switch. : . [Details]
Year2010 Publication7th ESA Round Table on MNT for Space Applications, Noordwijk, The Netherlands, 2010
Olszewski, Z. and O'Mahony, C. and R., Houlihan and Duane, R (2010) A Novel charging Concept in Capacitive RF MEMS. : . [Details]
Year2012 Publication8th ESA Round Table on MNT for Space Applications, Noordwijk, The Netherlands, 2012
Olszewski, O. Z. and Houlihan, R. and O'Mahony, C. and Ryan, C. and Duane, R (2012) Isolation of Degradation Mechanisms in Capacitive Microelectromechanical Switches. : . [Details]
Year2012 PublicationThe First International Conference on Radiation and Dosimetry in Various Fields of Research, RAD2012:
Ryan, C. and Olszewski, O. Z. and Houlihan, R. and O'Mahony, C. and Duane, R (2012) Capacitive Microelectromechanical Switches for Space Applications. : . [Details]
Year2006 PublicationMicromechanics Europe, Southampton, UK, Sept. 2006
Zhao, Q. and Houlihan, R. and Olszewski, O. Z. and Hill, M. and O'Mahony, C (2006) Process-Induced Stress in thin Film Aluminium MEMS StructuresProcess-Induced Stress in thin Film Aluminium MEMS Structures. : . [Details]
Year2007 PublicationMicromechanics Europe, Guimaraes, Portugal, 2007
O’Mahony, Conor and Houlihan, Ruth (2007) A High Airgap Capacitive Microswitch Using Thin Film Stress Gradient. : . [Details]
Year2012 PublicationDesign, Test, Integration and Packaging of MEMS/MOEMS - DTIP 2012
Olszewski, O. Z. ,Houlihan, R. ,O'Mahony, C.,Ryan, C. ,Duane, R (2012) Experimental MEMS capacitive switch with stable actuation voltage over a broad temperature range. : . [Details]
Year2014 PublicationMEMSWAVE
Ryan, C.,Olszewski, O. Z.,Houlihan, R.,O'Mahony, C.,Blake, A.,Duane, R (2014) Investigation of Bipolar Dielectric Charging in RF MEMS Capacitive Switches. : . [Details]
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