Professor Merlyne De Souza

Department of Electronic and Electrical Engineering

Chair in Micro Electronics

Semiconductor Materials and Devices Research Group

Headshot of Merlyne de Souza
m.desouza@sheffield.ac.uk
+44 114 222 5167

Full contact details

Professor Merlyne De Souza
Department of Electronic and Electrical Engineering
Profile

I graduated with a BSc in Physics and Mathematics (1985) from the University of Mumbai, a BE. in Electronics and Communications Engineering (1988) from the Indian Institute of Science, Bangalore and a PhD from the University of Cambridge (1994).

I joined as a Junior Research fellow in ‘95, was promoted to a Senior Research fellow in ‘98 and was appointed Professor in Electronics and Materials at the Emerging Technologies Research Centre, De Montfort University in 2003.

I joined the EEE department at Sheffield as Professor of Microelectronics in 2007. I work in multi-disciplinary research focused on the physics of devices, materials and their microelectronic applications in computing, communications and energy conversion.

Until now, microelectronics has relied on the versatility of silicon CMOS to deliver enhancement in performance by scaling the MOS transistor. I have worked on various aspects of CMOS such as reliability, high-k gate oxides and Indium for retrograde channels, first introduced in production at the 65 nm node.

However, scaling (as we know it) is now nearing an end and alternate materials and device architectures are required for future semiconductor applications.

Supervised learning for image and speech recognition, autonomous driving and medical diagnosis in Artificial Intelligence (AI) presently rely on CMOS based deep neural networks.

These are inherently power-hungry due to a continuous exchange of information between the required large volume of memory and processing units.

It is expected that such Von Neumann architectures will be replaced by neuromorphic systems that are more akin to a biological brain.

Our team has recently demonstrated ZnO/Ta2O5 solid electrolyte thin film transistors with synaptic capabilities.

I am interested in exploring such memristive devices in neuromorphic applications, electrochemical storage and flexible electronics for health.

My interest in more efficient semiconductors, smart materials and systems that leave a smaller footprint on the environment, spans to GaN for power and RF applications, that I have previously explored in equivalent silicon- based device technologies such as the IGBT and the RF LDMOSFET.

These are driven by the automotive, aerospace, space, renewables, telecoms and consumer/industrial electronics sectors.

Our recent work includes a new class of harmonic RF power amplifiers with record efficiency and output power prototyped using commercial GaN devices.

We are also working towards a p-type MOSHFET and magnetic thin films for “CMOS in GaN” in power management integrated circuits and current sensors.

Qualifications
  • PhD (Engineering), University of Cambridge 1994
  • BEng (Electronics & Communications Engineering), Indian Institute of Science Bangalore 1988
  • BSc (Physics & Mathematics), University of Bombay 1985
Research interests

·         GaN: CMOS, heterogeneous Integration, on-chip         inductors/magnetic materials for Power Management Integrated Circuits and power devices.

·         Sensors and actuators for health applications.

·         Memory devices for neuromorphic applications.

·         RF Power Amplifiers.

·         Perovskite solar cells.

Publications

Journal articles

Chapters

  • Pillai P & De Souza MM (2015) Carbon Nanotubes: from structural to device properties In Tewary V & Zhang Y (Ed.), Modeling, Characterization and Production of Nanomaterials Woodhead Publishing RIS download Bibtex download
  • Pillai P & De Souza MM (2015) Carbon-based nanomaterials, Modeling, Characterization, and Production of Nanomaterials (pp. 203-231). Elsevier RIS download Bibtex download
  • De Souza MM, Cao G & Hinchley D (2006) Drift Engineering of Silicon RF Power MOSFETs In Cai WZ (Ed.), Si-based semiconductor components for radio-frequency integrated circuits (RFIC) RIS download Bibtex download

Conference proceedings papers

  • Poluri N & de Souza MM (2019) A methodology to design broadband matching networks for continuum mode PAs. 2019 IEEE Asia-Pacific Microwave Conference (APMC), 10 December 2019 - 13 December 2019. RIS download Bibtex download
  • Poluri N & De Souza MM (2019) Class BJF-1: Simplifying the design methodology of RF Power Amplifiers. Book of abstracts AARMS, 1 April 2019 - 2 April 2019. View this article in WRRO RIS download Bibtex download
  • Song X, Kumar A & De Souza MM (2019) An ultralow power 3-terminal memory device with write capability in the off-state. Proceedings of the 3rd Electron Devices Technology manufacturing conference.. Singapore, 13 March 2019 - 15 March 2019. View this article in WRRO RIS download Bibtex download
  • Zhou J, Kumar A & De Souza MM (2018) Influence of an underlying 2DEG on the performance of a p-channel MOSHFET in GaN. Proceedings of the IWN 2018 RIS download Bibtex download
  • De Souza M, Pillai PB, Kumar A & Song X (2018) Solid Electrolyte Transistors: Mechanisms and Applications. Book of abstracts 7th TCM Greece View this article in WRRO RIS download Bibtex download
  • Poluri N & De Souza MM (2018) Class BJF-1- A new class of amplifier for high efficiency and output power. Proceedings of the 9th Wide Bandgap Semiconductors and Components Workshop, 8 November 2018 - 9 October 2018. View this article in WRRO RIS download Bibtex download
  • Kumar A & De Souza MM (2018) On the Dynamic characteristics of Ferroelectric and Paraelectric FETs. 2018 IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2018 - Proceedings (pp 184-186) View this article in WRRO RIS download Bibtex download
  • De Souza MM (2017) Mechanism of Turn-Off Operation in E-mode p-channel MOSHFET in GaN. UK Semiconductors 2017 book of abstracts View this article in WRRO RIS download Bibtex download
  • Batten T, Pillai PB & De Souza MM (2017) Raman spectroscopy characterisation of laser induced degradation in methyl ammonium lead iodide perovskite layers. UK Semiconductors 2017 RIS download Bibtex download
  • Song X, Pillai PB, Batten T & De Souza MM (2017) Highly oriented (202) mixed halide perovskite for enhanced solar cell performance. UK Semiconductors book of abstracts 2017 RIS download Bibtex download
  • Luo P, Long HY, Sweet MR, De Souza MM & Narayanan EMS (2017) Analysis of a clustered IGBT and silicon carbide MOSFET hybrid switch. Proceedings of the 26th International Symposium on Industrial Electronics (pp 612-615), 19 June 2017 - 21 June 2017. View this article in WRRO RIS download Bibtex download
  • De Souza MM & Kumar A (2017) Enhancement mode p-channel devices for GaN CMOS.. Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM View this article in WRRO RIS download Bibtex download
  • Kumar A & De Souza MM (2016) Extending the bounds of performance in E-mode p-channel GaN MOSHFETs. 2016 IEEE International Electron Devices Meeting (IEDM) View this article in WRRO RIS download Bibtex download
  • De Souza MM & Pillai P (2016) The behaviour and peculiarities of ZnO/Tantalum oxide memristor system. Book of abstracts TCM 2016 View this article in WRRO RIS download Bibtex download
  • Kumar A, Pillai PB & De Souza MM (2016) Diffusion mechanism of vacancies in Tantalum oxide. TCM 2016 RIS download Bibtex download
  • Pillai PB & De Souza MM (2016) Memory and Learning behaviour of ZnO based transparent synaptic thin film transistors. TCM 2016 RIS download Bibtex download
  • Kumar A & De Souza MM (2016) Engineering the threshold Voltage in p-channel GaN HFETs. Proceedings of the ISPS 2016 View this article in WRRO RIS download Bibtex download
  • Rasheduzzaman M, Pillai PB, Mendoza ANC & De Souza MM (2016) A study of the performance of solar cells for indoor autonomous wireless sensors. Proceedings of the 2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) (pp 1-6) RIS download Bibtex download
  • Rasheduzzaman M & De Souza MM (2016) Evaluation of the Analytic Approach for design of deep class AB Power Amplifiers in GaN. Book of abstracts UK semiconductors View this article in WRRO RIS download Bibtex download
  • Kumar A & De Souza MM (2016) Theoretical modelling of 2DHG in Oxide/GaN/AlGaN/GaN heterostructures. Book of abstracts UK semiconductors View this article in WRRO RIS download Bibtex download
  • Pillai PB & De Souza MM (2016) Centimetre scale mesoscopic perovskite solar cells via a novel combined solid state-solution crystallisation method. Book of abstracts UK Semi 2016 View this article in WRRO RIS download Bibtex download
  • Rasheduzzaman M, Chevaux N, De Souza MM, McEwan N, Rayit R & Brunning J (2016) Understanding the Response of GaN HEMT to Optimization Criteria in RF Power Amplifiers Using the Analytic Approach. Proceedings of the Active and Passive RF devices Seminar (pp 8 (7 .)-8 (7 .)-8 (7 .)-8 (7 .)) RIS download Bibtex download
  • Pillai PB & De Souza MM (2015) Transport Mechanism in Sub 100°C Processed High Mobility Polycrystalline ZnO Transparent Thin Film Transistors. Proceedings of the IEDM (pp 28.1.1-28.1.4) RIS download Bibtex download
  • Long HY, Sweet MR, De Souza MM & Narayanan EMS (2015) Next generation 1200V trench CIGBT for high voltage applications. 2015 IEEE 27th International Symposium on Power Semiconductor Devices & IC's (ISPSD), 10 May 2015 - 14 May 2015. RIS download Bibtex download
  • Long HY, Sweet MR, De Souza MM & Narayanan EMS (2015) The next generation 1200V Trench Clustered IGBT technology with improved trade-off relationship. 2015 IEEE Applied Power Electronics Conference and Exposition (APEC), 15 March 2015 - 19 March 2015. RIS download Bibtex download
  • De Souza MM, Rasheduzzaman M & Kumar SN (2014) Designing high power RF amplifiers: An analytic approach. Proceedings of ICCDCS 2014 (pp 1-5) RIS download Bibtex download
  • Pillai PB, Umari P & De Souza MM (2013) Are carbon nanotubes still a viable option for ITRS 2024?. Technical Digest - International Electron Devices Meeting, IEDM RIS download Bibtex download
  • Barrett JA, De Souza MM, Cirstea M & Cirstea S (2012) Analytical techniques for the simulation of electron transport in semiconductor systems. Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM (pp 822-826) RIS download Bibtex download
  • De Souza MM, Chevaux N, Rasheduzzaman M & De Souza MM (2012) Progress of Power devices in RF Applications. Proceedings of the ISPS RIS download Bibtex download
  • De Souza MM, Chevaux N & Rasheduzzaman M (2012) RF power amplifier: Pushing the boundaries of performance versus cost. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 8549 RIS download Bibtex download
  • Pillai P, De Souza MM, Batten T, Zhang T & Pokorny J (2011) Band structure modifications in self assembled graphene superlattice probed by dispersive Raman spectroscopy. UK Semiconductors 2011. Sheffield, 2011. RIS download Bibtex download
  • De Souza MM, Sicre SBF & Casterman D (2011) High-k gate dielectric MOSFETs: Meeting the challenges of characterization and modeling. ECS Transactions, Vol. 35(4) (pp 563-580) RIS download Bibtex download
  • Chevaux N & De Souza MM (2010) Class-D power amplifiers using LDMOS and GaN power devices: A comparative analysis. Proceedings of the Mediterranean Electrotechnical Conference - MELECON (pp 691-694) RIS download Bibtex download
  • Barrett JA, De Souza MM & Cirstea S (2010) Semi-analytical solutions to the Schroedinger-Poisson model of electron states. Proceedings of the International Conference on Optimisation of Electrical and Electronic Equipment, OPTIM (pp 180-184) RIS download Bibtex download
  • Nathan A, Kuo JB, Kim HJ, Xing Z, Milne B, Migliorato P, De Souza MM, Iniguez B, Fruehauf N, Saha S , Deen J et al (2009) Call for papers second international workshop on compact thin-film transistor (TFT) modeling for circuit simulation. 2009 Compact Thin-Film Transistor Modeling for Circuit Simulation, 25 September 2009 - 25 September 2009. RIS download Bibtex download
  • Shah R & De Souza MM (2009) Scattering at MOS Interfaces. WORLD CONGRESS ON ENGINEERING 2009, VOLS I AND II (pp 392-+) RIS download Bibtex download
  • Sicre S & De Souza MM (2009) Dit characterisation from small signal analysis of Poly/TiN HfO2 gated MOSFETS. International Gate Stack Conference. San Fransisco RIS download Bibtex download
  • Shah R & De Souza MM (2009) Semi-Empirical Phonon Scattering Model. WORLD CONGRESS ON ENGINEERING 2009, VOLS I AND II (pp 417-+) RIS download Bibtex download
  • Casterman D & De Souza MM (2009) Effect of Hydrazine on Al-Contacted Carbon Nanotube Field Effect Transistors Using Density Functional Theory. JOURNAL OF SCIENTIFIC CONFERENCE PROCEEDINGS, VOL 1, NO 1, Vol. 1(1) (pp 24-28) RIS download Bibtex download
  • Chevaux N & De Souza MM (2009) New analytical expressions for the design of linear power amplifier using GaN HEMTs. APMC 2009 - Asia Pacific Microwave Conference 2009 (pp 1112-1115) RIS download Bibtex download
  • Casterman D & De Souza MM (2008) Effect of Hydrazine on Al contacted CNTFETs using density functional theory. Journal of Scientific Conference Proceedings, Vol. 1 (pp 19-23) RIS download Bibtex download
  • De Souza MM, Cross RB, Jejurikar S & Adhi KP (2008) Performance of ZnO TFTs with AlN as insulator. Materials Research Society Symposium Proceedings, Vol. 1035 (pp 176-180) RIS download Bibtex download
  • Casterman D & De Souza MM (2007) Ab initio investigation of charge transfer technique for control of Schottky contacts in CNTs. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, Vol. 18(7) (pp 729-734) RIS download Bibtex download
  • Cross RBM & De Souza MM (2007) The impact of Fermi pinning on thermal properties of the instabilities in ZnO TFTs. ZINC OXIDE AND RELATED MATERIALS, Vol. 957 (pp 403-+) RIS download Bibtex download
  • Cross RBM, De Souza MM & IEEE (2007) Investigating the stability of thin film transistors with zinc oxide as the channel layer. 2007 IEEE INTERNATIONAL RELIABILITY PHYSICS SYMPOSIUM PROCEEDINGS - 45TH ANNUAL (pp 467-+) RIS download Bibtex download
  • De Souza MM, Cross RBM, Ngwashi D, Jejurikar S & Adhi KP (2007) Performance and Stability of ZnO TFTs with SiO2, SiN and AlN gate insulators. Proceedings of the MRS 2007 Multifunctional oxides. Greece, 2007. RIS download Bibtex download
  • Casterman D & De Souza MM (2006) Influence of Chemical Dopant Technique to Reduce Schottky Barriers of Pd-Contacted CNTFETs. MRS Proceedings, Vol. 963 RIS download Bibtex download
  • Atarah SA, De Souza MM, Peterson J, Bersuker G & Brown G (2006) Experimental study of the impact of SO phonon scattering in high-κ gate dielectric MOSFETs. 210th Transactions of the Electrochemical society, Vol. 3. Cancun RIS download Bibtex download
  • Atarah SA, De Souza MM, Peterson J, Bersuker G, Brown G & Young C (2006) Experimental study of the impact of so phonon scattering in high-κ gate dielectric MOSFETs. ECS Transactions, Vol. 3(3) (pp 49-56) RIS download Bibtex download
  • Cao G & De Souza MM (2004) Hot-carrier injection in step-drift rf power LDMOSFET. IEEE International Reliability Physics Symposium Proceedings, Vol. 2004-January(January) (pp 283-287) RIS download Bibtex download
  • Green DW, Hardikar S, Sweet M, Vershinin K, Tadikonda R, De Souza MM, Narayanan EMS & IEEJ (2004) Influence of temperature and doping parameters on the performance of segmented anode NPN (SA-NPN) LIGBT. ISPSD '04: PROCEEDINGS OF THE 16TH INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES & ICS (pp 285-287) RIS download Bibtex download
  • Shishkin M, Yan A & De Souza MM (2004) Interactions of indium, arsenic and carbon in silicon using the pseudopotential technique. SILICON FRONT-END JUNCTION FORMATION-PHYSICS AND TECHNOLOGY, Vol. 810 (pp 333-338) RIS download Bibtex download
  • Cao G, De Souza MM & ieee (2004) Hot-carrier injection in step-drift RF power LDMOSFET. 2004 IEEE INTERNATIONAL RELIABILITY PHYSICS SYMPOSIUM PROCEEDINGS (pp 283-287) RIS download Bibtex download
  • Yan X, Shishkin M, De Souza MM & ieee (2004) A study of indium activation in silicon using pseudopotential calculations. 2004 24TH INTERNATIONAL CONFERENCE ON MICROELECTRONICS, PROCEEDINGS, VOLS 1 AND 2 (pp 283-286) RIS download Bibtex download
  • Sekhar DC, Ray PP, De Souza MM, Chaparala P & ieee (2004) Edge effect under temperature bias stress of 0.18 mu m PMOS technology. 2004 24TH INTERNATIONAL CONFERENCE ON MICROELECTRONICS, PROCEEDINGS, VOLS 1 AND 2 (pp 645-648) RIS download Bibtex download
  • Cao G, Narayanan EMS, De Souza MM, Flores D, Vellvehi M, Hidalgo S, Millan J & Hinchley D (2004) Design of an RF LDMOSFET with deep drift and hot carrier immunity using time domain approach. IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD), Vol. 16 (pp 241-244) RIS download Bibtex download
  • Vershinin K, Sweet M, Spulber O, Hardikar S, Luther-King N, De Souza MM, Sverdloff S, Narayanan EMS & Hinchley D (2004) Influence of the design parameters on the performance of 1.7 kV, NPT, planar clustered insulated gate bipolar transistor (CIGBT). IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD), Vol. 16 (pp 269-272) RIS download Bibtex download
  • Udugampola UNK, McMahon RA, Udrea F, Sheng K, Amaratunga GAJ, Narayanan EMS, Hardikar S & De Souza MM (2003) Dual gate lateral inversion layer emitter transistor for power and high voltage integrated circuits. IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD) (pp 216-219) RIS download Bibtex download
  • Spulber O, Sweet M, Vershinin K, Luther-King N, Sankara-Narayanan EM, De Souza MM, Flores D & Millan J (2003) 1.7kV NPT V-groove clustered IGBT - Fabrication and experimental demonstration. IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD) (pp 345-348) RIS download Bibtex download
  • Luther-King N, Sweet M, Spulber O, Vershinin K, De Souza MM & Narayanan EMS (2003) Anode-gated MOS controlled thyristor with ultra-fast switching capability. IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD) (pp 299-302) RIS download Bibtex download
  • De Souza MM, Cao G, Sankara Narayanan EM, Youming F, Manhas SK, Luo J & Moguilnaia N (2002) Progress in silicon RF Power MOS technologies-current and future trends. ICCDCS 2002 - 4th IEEE International Caracas Conference on Devices, Circuits and Systems RIS download Bibtex download
  • Krishnan S, Narayanan EMS, Xu YZ, Clough FJ, De Souza MM, Flores D, Vellvehi M, Millan J, IEEE & IEEE (2002) Novel dual gate high voltage TFT with variable doping slot. 2002 23RD INTERNATIONAL CONFERENCE ON MICROELECTRONICS, VOLS 1 AND 2, PROCEEDINGS (pp 155-158) RIS download Bibtex download
  • Manhas SK, De Souza MM, Oates AS & Chen Y (2002) Impact of oxide degradation on universal mobility behaviour of n-MOS inversion layers. PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM ON THE PHYSICAL & FAILURE ANALYSIS OF INTEGRATED CIRCUITS (pp 227-231) RIS download Bibtex download
  • Manhas SK, Sekhar DC, Oates AS, De Souza MM, IEEE & IEEE (2002) Nature of hot carrier damage in Spacer oxide of LDD n-MOSFETs. 2002 23RD INTERNATIONAL CONFERENCE ON MICROELECTRONICS, VOLS 1 AND 2, PROCEEDINGS (pp 735-739) RIS download Bibtex download
  • Luo J, Cao G, Spulber O, Hardikar S, Feng YM, Narayanan EMS & De Souza MM (2002) Influence of physical parameters on the quasi-saturation of a power SOI RF LDMOS. IEEE International Conference on Semiconductor Electronics, Proceedings, ICSE (pp 314-318) RIS download Bibtex download
  • Udugampola UNK, Khoo GFW, Sheng K, McMahon RA, Udrea F, Amaratunga GAJ, Narayanan EMS, Hardikar S & De Souza MM (2002) Characterisation of dual gate lateral inversion layer emitter transistor. IEE Conference Publication(487) (pp 557-561) RIS download Bibtex download
  • Manhas M, Pease TJ, Cross R, Bose SC, Oxley DP, De Souza MM & Sankara Narayanan EM (2002) Device quality SiO2 films by liquid phase deposition (LPD) at 48°C. Materials Research Society Symposium - Proceedings, Vol. 716 (pp 317-323) RIS download Bibtex download
  • Spulber O, Sweet M, Vershinin K, Luther-King N, De Souza MM & Sankara-Narayanan EM (2002) Overview of trench gated MOS-Controlled bipolar semiconductor power devices. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4746 I (pp 444-449) RIS download Bibtex download
  • Hardikar S, De Souza MM & Sankara Narayanan EM (2002) Advances in devices and technologies for power and high voltage integrated circuits. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4746 I (pp 422-431) RIS download Bibtex download
  • Moguilnaia NA, Vershinin KV, Sweet MR, Hardikar S, Ngwendson LK, Spulber O, Rouse MJ, De Souza MM & Narayanan EMS (2002) The investigation into the recent mergers and acquisitions in power semiconductor industry. IEEE International Engineering Management Conference, Vol. 2 (pp 826-830) RIS download Bibtex download
  • Sweet M, Spulber O, Ngwendson L, Vershinin KV, De Souza MM & Narayanan EMS (2002) The accumulation enhanced emitter switched thyristor - a novel area efficient power semiconductor device. 2002 23RD INTERNATIONAL CONFERENCE ON MICROELECTRONICS, VOLS 1 AND 2, PROCEEDINGS (pp 151-154) RIS download Bibtex download
  • Narayanan EMS, Moguilnaia N, Vershinin K, Sweet M, Hardikar S, Ngwendson L, Spulber O & De Souza MM (2002) Innovation and competition: Are they crucial in power semiconductor industry? A market perspective. 2002 23RD INTERNATIONAL CONFERENCE ON MICROELECTRONICS, VOLS 1 AND 2, PROCEEDINGS (pp 7-13) RIS download Bibtex download
  • Spulber O, De Souza MM, Sweet M, Bose JVSC & Narayanan EMS (2001) Injection-enhancement effect in a novel, trench-planar insulated gate bipolar transistor. IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS, Vol. 148(2) (pp 79-82) RIS download Bibtex download
  • Sweet M, Spulber O, Bose JVSC, Ngwendson L, Vershinin KV, De Souza MM & Narayanan EMS (2001) Clustered insulated gate bipolar transistor: a new power semiconductor device. IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS, Vol. 148(2) (pp 75-78) RIS download Bibtex download
  • Spulber O, Sweet M, Vershinin K, Luther-King N, De Souza MM & Narayanan EMS (2001) A novel, 1.2 kV trench clustered IGBT with ultra high performance. IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD) (pp 323-326) RIS download Bibtex download
  • Manhas SK, De Souza MM, Oates AS, Chetlur SC & Narayanan EM (2000) Early stage hot carrier degradation of state-of-the-art LDD N-MOSFETs. Annual Proceedings - Reliability Physics (Symposium) (pp 108-111) RIS download Bibtex download
  • Bose JVSC, De Souza MM, Sweet M, Spulber O & Narayanan EMS (2000) A novel area efficient edge termination technique for planar, MOS controlled power devices. PROCEEDING OF THE TENTH INTERNATIONAL WORKSHOP ON THE PHYSICS OF SEMICONDUCTOR DEVICES, VOLS I AND II, Vol. 3975 (pp 349-352) RIS download Bibtex download
  • De Souza MM, Spulber O, Narayanan EMS, IEEE & IEEE (2000) A novel 'cool' insulated base transistor. 12TH INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES & ICS - PROCEEDINGS (pp 313-316) RIS download Bibtex download
  • Narayanan EMS, Sweet M, Spulber O, De Souza MM & Bose SC (2000) Clustered IGBT - A new power semiconductor device. PROCEEDING OF THE TENTH INTERNATIONAL WORKSHOP ON THE PHYSICS OF SEMICONDUCTOR DEVICES, VOLS I AND II, Vol. 3975 (pp 1307-1312) RIS download Bibtex download
  • De Souza MM, Chichkine MP & Narayanan EMS (2000) Self-interstitial clusters in silicon. Materials Research Society Symposium - Proceedings, Vol. 610 RIS download Bibtex download
  • Cao GJ, De Souza MM & Narayanan EMS (2000) Resurfed lateral bipolar transistors for high-voltage, High-frequency applications. IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD) (pp 185-187) RIS download Bibtex download
  • Sankara Narayanan EM, Sweet MR, Luther-King N, Vershinin K, Spulber O, De Souza MM & Subhas Chandra Bose JV (2000) A novel, clustered insulated gate bipolar transistor for high power applications. Proceedings of the International Semiconductor Conference, CAS, Vol. 1 (pp 173-181) RIS download Bibtex download
  • Krishnan S, De Souza MM, Sankara Narayanan EM, Vellvehí M, Flores D, Rebollo J & Millán J (2000) The radial confinement: A new approach to high voltage lateral power devices. Proceedings of the International Semiconductor Conference, CAS, Vol. 1 (pp 349-352) RIS download Bibtex download
  • Spulber O, Sweet M, Vershinin K, Ngw Y, Ngwendson L, Bose SCJV, De Souza MM & Narayanan EMS (2000) Influence of the N plus floating emitter on the on-state characteristics of the trench EST. 2000 INTERNATIONAL SEMICONDUCTOR CONFERENCE, VOLS 1 AND 2, CAS 2000 PROCEEDINGS (pp 329-332) RIS download Bibtex download
  • Hardikar S, Sankara Narayanan EM, De Souza MM, Huang AQ & Amaratunga G (1999) Novel dual gated lateral MOS-Bipolar power device. IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD) (pp 261-264) RIS download Bibtex download
  • Spulber O, Narayanan EMS, De Souza MM, Sweet M, Bose SCJV & Hardikar S (1999) Trench planar insulated gate bipolar transistor (TPIGBT). Proceedings of the International Semiconductor Conference, CAS, Vol. 1 (pp 51-54) RIS download Bibtex download
  • Spulber O, De Souza MM, Sankara Narayanan EM & Krishnan S (1999) Analysis of a COOL-MOSFET. Proceedings of the International Semiconductor Conference, CAS, Vol. 1 (pp 131-135) RIS download Bibtex download
  • Bose SCJV, De Souza MM, Narayanan EMS, Spulber O & Sweet M (1999) Influence of a shallow p+ offset region on a novel edge termination technique using lightly doped p-rings. Proceedings of the International Semiconductor Conference, CAS, Vol. 1 (pp 63-66) RIS download Bibtex download
  • Cao G, De Souza MM & Sankara Narayanan EM (1999) High performance 60-V class lateral power MOSFET on thin film SOI with a graded doping profile in the drift region. Proceedings of the International Semiconductor Conference, CAS, Vol. 1 (pp 123-126) RIS download Bibtex download
  • Spulber O, Narayanan EMS, De Souza MM, Sweet M, Hardikar S & Subhas Chandra Bose JV (1999) The trench planar insulated gate bipolar transistor (TPIGBT). IEE Colloquium (Digest)(104) (pp 75-79) RIS download Bibtex download
  • Narayanan EMS, Qin Z, De Souza MM, Amaratunga G & JAPAN IEE (1998) A new lateral insulated base emitter switched thyristor. ISPSD '98 - PROCEEDINGS OF THE 10TH INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES & ICS (pp 221-224) RIS download Bibtex download
  • Rasheduzzaman M, Chevaux N & De Souza MM () A study of the mechanism of the nonlinear input capacitance on the RF performance in GaN HEMT devices. Automated RF and Microwave Measurement Society (ARMMS) 33rd conference. Wyboston, 9 November 2015 - 10 November 2015. RIS download Bibtex download
  • Corpus Mendoza A & De Souza MM () Engineering of the window layer for optimum performance of thin film silicon solar cells. 4th International Symposium on Energy Challenges & Mechanics. Aberdeen, Scotland, 11 August 2015 - 13 August 2015. RIS download Bibtex download
  • Long H, Sweet M, De Souza MM & Madathil () A New Generation of Clustered IGBT with High Ruggedness. PCIM. Shanghai, 25 June 2015 - 25 June 2015. RIS download Bibtex download
  • De Souza MM & Pillai P () Stability of transparent oxide thin film transistors. Thirteenth international meeting on information displays. Daegu Korea, 2013. RIS download Bibtex download
  • Mendoza A, De Souza MM & Hammelmann F () Extraction of Schottky Barrier in the presence of bias dependent ideality factors in ZnO/μc-Si:H heterojunctions for solar cells. Fourth international symposium on transparent conductive materials. Greece, 2012. RIS download Bibtex download
  • Chevaux N & De MM () Investigating Reverse Intermodulation Distortion in Power Amplifiers. UK Semiconductors. Sheffield, 2012. RIS download Bibtex download
  • Crozier B, Pillai P & De Souza MM () Investigation into the Fabrication of Vanadium Dioxide Thin Films using the Precursor Oxidation Process. UK Semiconductors. Sheffield, 2012. RIS download Bibtex download
  • Pillai P & De SOuza M () Importance of band gap on the performance prediction in carbon nanotube and graphene nanoribbon devices. UK Semiconductors. Sheffield, 2012. RIS download Bibtex download
  • Chevaux N & De Souza MM () Analytic Approach to design of harmonically tuned RF Power Amplifiers. UK Semiconductors. Sheffield, 2011. RIS download Bibtex download
  • De Souza MM, De Souza MM, Sicre S & Casterman D () “High-k Gate Dielectric MOSFETs: Meeting the challenges of characterisation and modelling”,. ECS Transactions 35(4), 563 (2011). RIS download Bibtex download
  • Casterman D, Pillai P, De Souza MM, Cranney M, Vonau F, Aubel D & Simon L () Ab initio investigation of the doping effect of epitaxial graphene via intercalation of a gold monolayer. 10th International conference on the science of application of Nanotubes 2009. Beijing, 2010. RIS download Bibtex download
  • Casterman D & De Souza MM () Variation of dielectric permittivity through insulator/silicon interface: Effect on Coulomb limited mobility in MOSFETs. UK Semiconductors. Sheffield, 2010. RIS download Bibtex download
  • Ravindran K & De Souza MM () Investigating the TCO ZnO and p-type microcrystalline silicon contact for thin film solar cells. Third International conference on Transparent Conducting Materials, Greece 2010. Greece, 2010. RIS download Bibtex download
  • Jejurikar S, Casterman D, Pillai P & De Souza MM () Diameter dependent electrical measurements of individual SW-CNTFET. Final Fone Conference. Madrid, 2009. RIS download Bibtex download
  • De Souza MM, Cranney M, Vonau F, Aubel D, Simon L, Casterman D, Pillai P & De Souza MM () Surface intercalation of gold underneath a graphene monolayer on SiC(0001) studied by Scanning Tunneling Microscopy (STM) and Spectroscopy (STS). 10th International conference on Atomically controlled surfaces, interfaces and nanostructures. Granada, 2009. RIS download Bibtex download
  • De Souza MM, Pillai P, Casterman D, Jejurikar S & Petrenko O () Carbon based electronics- A perspective from theory and experiment. Final Fone Conference. Madrid, 2009. RIS download Bibtex download
  • Taioli S, Simonucci S, Calliari L, Fillipi M, De SOuza MM & Dapor M () Mixed Ab-initio Quantum Mechanical/Monte Carlo Calculations to Probe Electronic Correlations in Graphite and Graphene Nanostructures. MRS. san Fransisco, 2009. RIS download Bibtex download
  • Casterman D, Pillai P & De Souza MM () Diameter dependence of the charge transfer between CNTs and a chemical p-type dopant. MRS. Boston, 2008. RIS download Bibtex download
  • De Souza MM () Schottky barrier Heights of Carbon nanotube FETs: Experiment versus Theory. ICCES. Honolulu, 2008. RIS download Bibtex download
  • Taioli S, Umari P & De Souza MM () Electronic Properties of carbon based nanostructures from GW calculations. Nanotubes 2008. Montpellier, 2008. RIS download Bibtex download
  • Casterman D, Taioli S, De Souza MM, Tahroui A, Durkan C & Milne WI () Highlights of progress on the determination of intrinsic transport properties of CNTFETs. First Fone conference. Taormina, Sicily, 2008. RIS download Bibtex download
  • Shah R & De Souza MM () Landau Damping Effects on SO Limited Mobility. ECS Transactions, Vol. 6(16) (pp 61-71) RIS download Bibtex download
  • Souza MMD, Chakravarthi S & Jain A () Defect Interaction Mechanisms between Antimony and Indium in Silicon (pp 425-432) RIS download Bibtex download
  • Sheng K, Udugampola UNK, Khoo GFW, Udrea F, Amaratunga GAJ, McMahon RA, Narayanan EMS, De Souza MM & Hardikar S () Dual gate lateral inversion layer emitter transistor. Proceedings of the 14th International Symposium on Power Semiconductor Devices and Ics RIS download Bibtex download
  • Mugnier M, Manhas SK, Chandra Sekhar D, Krishnan S, Cross R, Sankara Narayanan EM, De Souza MM, Flores D, Vellvehi M & Millan J () Degradation behaviour of polysilicon high voltage thin film transistors. Proceedings of the 9th International Symposium on the Physical and Failure Analysis of Integrated Circuits (Cat. No.02TH8614) RIS download Bibtex download
Professional activities
  • Chair in Microelectronics, EEE Department, University of Sheffield (2007-)
Research students
Student Degree Status Primary/Secondary
Balakrishnapillai P PhD Graduated Primary
Casterman D PhD Graduated Primary
Chevaux N PhD Graduated Primary
Corpus Mendoza A N PhD Graduated Primary
Mathew D MPhil Graduated  Primary
Rasheduzzaman M PhD Graduated  Primary
Sicre S B F M  PhD Graduated  Primary
Subramani N PhD Graduated Primary
Baltynov T PhD Graduated Secondary
Unni V  PhD Graduated Secondary