About me

Vijayaragavan VISWANATHAN

Institute/organization: Jablotron Alarms a.s

Working field: Radiation monitoring system

ESR number: 12

Nationality: Indian

Contact me

Professional profile


  • Ph.D - (2009-2012)
  • - Lyon Institute of Nanotechnology, Ecole Centrale de Lyon, France
    - Area: Microelectronics/Nanoelectronics
    - Research: Modeling and Design of 3D Imager IC
    - Advisor: Prof. Ian O’Connor, Dr.David Navarro
    - Group: Heterogeneous Systems Design (www.inl.cnrs.fr)
  • Masters of Science - (2007 - 2009)
  • - Ecole Polytechnique Federale de Lausanne (EPFL)- Switzerland, Institut National Polytechnique de Grenoble (INPG)- France, Politecnico di Torino- Italy
    - Area: Microelectronics and Nanotechnology for Integrated Systems
  • Masters research - (2008 - 2009)
    - Universite Joseph Fourier, Grenoble, France
    - Area: Micro and Nanoelectronics
  • Bachelors - (2003 - 2007)
  • - Amrita University, Amrita School of Engineering, Coimbatore, India
    - Area: Electrical and Electronics Engineering (EEE)

Professional experience

  • Jablotron Alarms a.s (10/12 - till date)
  • - Project: ARDENT
    - Researcher: Development of electronics for hand held radiation monitoring systems using medipix/timepix detectors
  • Lyon institute of nanotechnology - (10/09- 09/12)
  • - French national project (ANR) titled “3D IDEAS”
    - Partners: ST Microelectronics, CEA-Leti,InESS, IMEP-LAHC
    - Doctoral research focused on
      - Development of methods and tools to perform heterogeneous design space exploration
      - Thermal management, floorplanning on 3D Image sensor
  • Embedded Systems Laboratory & IBM Zurich research labs - (02/09 - 09/09)
  • - Ecole Polytechnique Federale de Lausanne, Switzerland
    - Research: Modeling of Liquid cooling mechanisms for 3D chips
    - Project: CMOSAIC, Nano-Tera- Swiss federal funded project
    - Advisor: Prof. David Atienza Alonso & Prof.Jose L.Ayala
    - Microchannel liquid cooling for 3D IC’s were modeled to show the cooling efficiency with various flow rate for different thermal profiles and floorplans.
  • Integrated systems laboratory (Summer '08 & 09/08 - 02/09)
  • - Research & Part time research: Modeling of thermal aware 3D chips
    - Collaboration: IMEC, Belgium
    -Advisor: Prof. Giovanni de Micheli & Prof. David Atienza Alonso
    - 3D ICs with high power density creates hot spots causing aging, leakage issues. 3D Compact thermal model was developed to investigate thermal aspects of 3D chips

Current work

  • Market study
  • Investigation of applications in radiation dosimetry
  • Development of medipix based radiation monitoring system
  • Design of medipix/timepix monitoring system
    Interface development for hand held device
    Development of educational kit for high schools
  • Testing and prototype verification
  • Certification and production

Participations in meetings, conferences, etc

  • Presentation at Czech republic foreign ministry, 23 September 2012
  • 1st annual radiation dosimetry workshop, Vienna, 20-23 November 2012
  • MMNT-IPCT 2012, University of Wollongong, Australia, 6-9 December 2012


  • Previous publications (Journal, Conference, Colloque etc)
  • Viswanathan.V, Frantz.F,Feng.Z, Navarro.D, O'Connor.I, "3D IC: Fast imager thermal simulation", Elsevier journal for system architecture (Under review)
  • Viswanathan.V, Frantz.F,Feng.Z,Navarro.D,O’Connor.I, "Imager temperature modeling",WASC Smart Camera, Clermont Ferrand, France, April 5-6,2012
  • Viswanathan.V,Labrak.L, Frantz.F,Navarro.D,O’Connor.I, "Model based design of Imager using abstraction segregated parameter dependency graphs", NEWCAS 2011, Bordeaux, France, June 26-29,2011
  • Navarro.D, Feng.Z, Viswanathan.V,Carrel.L,O’Connor.I,"Imager tool box for CMOS image sensors in Cadence ADE", Demset 2011, Orlando, Florida, USA, November 29th – December 2nd, 2011
  • Viswanathan.V, Labrak.L, Frantz.F, Navarro.D, O’Connor.I, "Model based design of Imager pixel matrix", GDR SoC SiP colloque 2011, Lyon, France.
  • Viswanathan.V, Labrak.L, Frantz.F, Navarro.D, O’Connor.I, "Model based design of Imager pixel matrix", GDR Green SoC SiP colloque 2011, Montpellier, France. (Poster)
  • Viswanathan.V, Navarro.D,Labrak.L, O’Connor.I, "High level modeling of Imager IC", GDR SoC SiP 2010, Paris, France.
  • Viswanathan.V, Navarro.D,Labrak.L, O’Connor.I, "High level modeling of Imager IC", D43D workshop 2010, Lausanne, Switzerland. (Poster)
  • Frantz.F,Labrak.L,Viswanathan.V, O’Connor.I, "Heterogeneous 3D design methods and tools", FETCH 2010, Chamonix, France


  • In-house training at Jablotron Alarms a.s (2012)
  • Quality management training
  • JA-100 security alarm training
  • Purchase/Selection training
  • AZOR security alarm installation training
  • Organization structure training
  • Logistics/Supply chain/ERP training
  • Czech language

My interests

I enjoy watching movies and travelling. Empowering and clarifying myths regarding radiation from civil society is my current interest and long time goal


  • Mother tongue: Tamil
  • Other: English (fluent), French (Basic), Czech (Beginner)