I graduated with Bachelor of Technology ( B.Tech. ) in electrical engineering in the year 1997 from Indian Institute of Technology Kanpur India. I went to study Master of Science in Electrical Engineering in University of Central Florida Orlando in the same year and completed the degree in 1999. My Master’s thesis was in the area of micro and mesoscopic miniature devices with my Supervisor being Professor Kalpathy B. Sundaram who specializes in the area of thin film fabrication and characterization and MEMS device fabrication and testing. My Co-Supervisor was Professor Louis C Chow who was the then Head of the Mechanical Engineering and provided his best support in generating funds from agencies like Lockheed Martin and Harris Corporation to embark on a challenging project like design of mesoscopic refrigerator in silicon through micromachining technique.  I was chosen by the Eta Kappa Nu for graduate membership for academic excellence in the year 1998. During January 1998, I was sponsored by American Vacuum Society to participate in a short course on “Applied Vacuum Technology”. My revered Professors that I came to work with during various courses and projects in Solid State Devices are Professor Samresh Kar ( specifically his outstanding clean room laboratory ), Professor Shafi Qureshi ( His research grant related to applications of a-Si:H photodiodes ), Professor Baquer Mazhari, Professor Mahesh Patil: all being from Indian Institute of Technology Kanpur, Professor Jian S. Yuan ( who highly praised my term papers related to two of his courses ), Professor Amir Mortazawi ( his fervor for perfectionism seems eccentric at times and he is now an Associate Professor in the EE department of Univ. of Michigan, Ann Arbor ) and Professor  Juin J. Liou ( very famous personality in the area of modeling of bipolar and MOS devices ). My industry experience started with assignment of a Design Engineer position in SAW filter design group of RF Monolithics Inc in Dallas, Texas during  1999-2001. I was selected by the company along with my SAW Engineer Manager Dr. Rodolfo Chang to attend IEEE UFFC conference in San Juan , Puerto Rico in 2000. I came in touch with luminary researchers in SAW devices like Dr. Clinton Hartmann, Professor Donald Malocha from UCF Orlando, Dr. Robert J. Kansy and Dr. Benjamin P. Abbott. I also got wholehearted support from Dr. Ji Dong Dai who managed the product launch for new generation RF and IF filters at RF Monolithics.

E-Mail

hsashraf@iut-dhaka.edu, nsnabil2002@yahoo.com

Research Interests

·        Design and modeling of Micro, Meso and Nano Electromechanical Systems

·        MEMS based RFIC and Optoelectronic Circuits design and simulation

·        Modeling of novel device parameters and their effect on  device performances of sub-100 nm gate length MOSFETs

·        Alternative device structures than silicon MOSFETs to sustain device scaling as predicted by Moore’s Law.

Theses and Publications

M.Sc./M.S. Thesis 

Ashraf, N.S.., “Design Considerations and Thermodynamic Feasibility Study of a Mesoscale Refrigerator”. Masters thesis. Supervised by Professor Kalpathy B. Sundaram and co-supervised by  Professor  Louis C. Chow of Department of Electrical and Computer Engineering and Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, USA, 1999.

B.Tech ( Bachelor of Technology ) Project 

Ashraf, N.S., “ Design of a coin counter system using hydrogenated a-Si:H photosensors”. Undergraduate project. Supervised by Professor Shafi Qureshi, Department of Electrical Engineering, Indian Institute of Technology Kanpur, India, 1997.

 

Journal Papers 

§ Agrawal, Q. Hasan, N. Ashraf, K.B. Sundaram, L.C. Chow, J.S. Kapat and J. Vaidya, “ Design and fabrication of a meso-scale variable capacitance motor for miniature heat pumps ”, Journal of Micromechanics and Microengineering, 13, 1-7 (2003).

 

Conference Papers 

§ Ashraf, N.S.  “ Concept and Design of Micromachined Variable Capacitance Motor ( VCM ) in Lead Zirconate Titanate ( PZT ) substrate”, Accepted in the conference proceedings of International Conference on MEMS and Nanotechnology, March14-15, 2006, Kuala Lumpur, Malaysia.

§ Ashraf, N.S., Saifuduzza, S.M., Doha, I., Ul-Hasan, MMM. “Comparative Study of Microactuators as Elements of Current MEMS based Devices for Diversified Technological Applications”, 5^th International Mechanical Engineering Conference ( IMEC ) 2005, Dhaka, Bangladesh.

§Ashraf, N. S.,  L.C. Chow, A.Q. Hasan, J.S. Kapat, K.B. Sundaram, J. Vaidya, “ Component Fabrication and Testing of a Mesoscale Refrigerator”, AIAA Space Technology, Sept. 28-30, (1999), Nashville, Tennessee, USA.

 

§Ashraf, N. S.,  H.C. Carter, K.Casey, L.C. Chow, S. Corban, M.K. Drost, A.J. Gumm, Z. Hao, A.Q. Hasan, J.S. Kapat, L.Kramer, M. Newton, K.B. Sundaram, J. Vaidya, C.C. Wong, K. Yerkes, “ Design and Analysis of a Mesoscale Refrigerator”, Proceedings of the ASME 1999 IMECE ( 1999 International Mechanical Engineering Congress & Exposition), 14-19, (1999).

 

Currently Conducting Courses

1.      EEE 4309 : Electrical Engineering Materials ( Materials properties and analyses related to electrical, magnetic, dielectric and optical characteristics ).

2.      EEE 5103 : Electrical and Magnetic Properties of Materials ( Course content is same as EEE 4309 but more deepening and enlightening analyses are given ).

 

Previously Conducted Courses

1.      EEE 6227 : Solid State Devices ( BJTs, HBTs, MOSFETs, MESFETs, MODFET, p-i-n photodiode, optical receivers )

2.      EEE 5205 : Advanced Electronics ( OPAMP circuits, linear and feedback controlled BJT and MOSFET integrated circuits, Frequency response of different amplifier pairs ).

3.      EEE 4321 : Digital Techniques I ( Combinatorial and sequential logic gates, Boolean algebra, Counters, FlipFlops, Shift Registers ).

 

Supervising Projects

1.      Economical code controlled electrical wiring system design 

2.      Time Division Multiplexing data communication through optical fiber ( 6 students doing both projects 1 and 2 ).

 

Previously Supervised Projects and Thesis

1.      Design Characteristics of Narrowband and Broadband LNA & Their Impact on WCDMA based Receiver

2.      Comparative Study of Microactuators as Elements of Current MEMS based Devices for Diversified Technological Applications

 

Student Mentoring

I am also the mentor of the following students:

1.      Member of Student Advisors of First year B.Sc. EEE and HDEE students, 2005-2006

2.      Member of Student Advisors of First year B.Sc. EEE and HDEE students, 2004-2005

 

Other responsibilities

3.      Member of Press and Publication Sub-Committee for the 19^th Convocation of IUT, 2005

4.      Member of Press and Publication Sub-Committee for the 18^th Convocation of IUT, 2004

5.      Member of Judges ( Field events ) for the Annual Athletic Competition 2004, 2005, 2006.

 

Professional Experience:

 

·        Assistant Professor, Department of EEE, Islamic University of Technology, Board Bazar, Gazipur-1704, Bangladesh, December 2003-present.

·        Lecturer, Department of EEE, Ahsanullah University of Science and Technology, Dhaka, Bangladesh, October 2002-December 2003.

·        Design Engineer, SAW Filter Design Group, RF Monolithics Inc, Dallas, Texas, USA, August 1999 to March 2001.

Last Updated: <Wednesday, March 01, 2006 >