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Senior Scientist III / Advisor of Laboratories


Director's Office, IMRE staff with Adjunct Appointment in University/Industry


2 Fusionopolis Way Innovis, #08-03, Singapore 138634

Research Details

  • Growth of arsenide / phosphide based materials by MBE /MOCVD
  • III-V materials based optical MEMS
  • GaN based optolectronic devices
  • Nanotechnology (nanofabrication)
  • Dry etching of III-V materials by ICP technique
  • GaN based device processing

Advisor of Laboratories, Institute of Materials Research & Engineering (Singapore), Feb 19 - Current

Head of Laboratories, Institute of Materials Research & Engineering (Singapore), May 17 – Jan 19

Head, Industry Alliance, Institute of Materials Research & Engineering (Singapore), Jun 14 – Nov 15

Advisor, SNFC, Institute of Materials Research & Engineering (Singapore), Nov 12 – Nov 15

Head, SNFC, Institute of Materials Research & Engineering (Singapore), Apr 05 – Oct 12

Senior Scientist III, Institute of Materials Research & Engineering (Singapore), Mar 01 – To-date

Research Fellow, Institute of Materials Research and Engineering (Singapore), Feb 98 – Feb 01

Scientific Officer, National University of Singapore (Singapore), Oct 92 - Jan 98

Senior Manufacturing Engineer, SGS-Thomson Microelectronics (Singapore), Jun 91 – Oct 92

Senior Scientific Officer-I, Solid State Physics Laboratory, Delhi (India), Dec 88 – May 91

Senior Scientific Officer-II, Solid State Physics Laboratory, Delhi (India), Sep 83 – Dec 88

Research Scholar, Indian Institute of Technology, Delhi (India), Jul 82 – Aug 83

  • Ph.D. (Electrical Engineering), National University of Singapore, Singapore, 1997
  • M. Sc (Physics, specialization in Electronics), Delhi University, India, 1982
  • B. Sc (Hons) Physics, Delhi University, India, 1980
  • SPRING Singapore Merit Award, for contributions to the Singapore Standardisation Programme, in the area of nanotechnology for the year 2014. SPRING Singapore is an agency under the Ministry of Trade and Industry responsible for helping Singapore enterprises grow and building trust in Singapore products and services.
  • Recipient of A*STAR’s top award, the STAR Employee Award, for the year 2011. “The award recognizes staff who best embody A*STAR’s corporate values of Action, Speed, Teamwork, Agility, Resolve and Integrity. Recipients must be outstanding contributors, have positive influence on the organization, society and are role models for all”. A*STAR is Singapore's lead agency for fostering world-class scientific research and talent for a vibrant knowledge-based Singapore.
  • Young Scientist Award 1987, for significant contribution made in developing the multi-mask lithography process for beam lead Schottky diodes (Defense R & D Organization, India).

  • 2016 - 2017: President of Asia Nano Forum (ANF), a network organization in nanotechnology
  • Convenor of JWG2. "Measurement of Characterisation" in National Mirror Committee for ISO/TC 229 on nanotechnologies


    • [1]  S. Tripathy. S.J. Chua, A. Ramam, “Electronic and vibronic properties of n-type GaN: the influence of etching and annealing”, J. Phys. Condens Matter 14, pp. 4461-4476, (2002). IF: 2.546
    • [2]  A. Ramam, G. K Chowdhury and S. J Chua, “A new approach to the design of highly selective Resonant cavity Enhanced photo-detectors”, Applied Physics letters, vol 86, issue 17, pgs 171104-1 to 171104-3, April 25, (2005), IF: 3.844
    • [3]  M.A. Shah, V.Shanmugan, G.K. Chowdhury, A. Ramam, “Opto-Mechanical design of tunable InP based Fabry-Perot filters for WDM applications”, Journal of Microlithography, Microfabrication and Microsystems (JM3), volume 4, number 4, Oct-Dec (2005). IF: 2.105
    • [4]  V.K.X. Lin, E.A. Llado, H.H. Kim, S. Arulkumaran, G.I. Ng,  A. Ramam, S. Tripathy, “Structural and Electrical Characterization of AlxGa1-xN/GaN Interfaces for UV Photodetectors”, Electrochemical and Solid State Letters, 13 (9) H301-H304 (2010). IF: 1.995

    • [1]  ''Method of cleaving GaN/Sapphire for forming Laser mirror facets'' Authors: A. Ramam, S. Tripathi, Z.L. Li, S.J Chua Patent no (Singapore): 200203864-4

    Last updated on : 31 Jul 2019 12:00 AM