Advanced Materials Research Laboratory

Selected Publications

Textbook

"Materials Processing and Manufacturing Science" by Rajiv Asthana, Ashok Kumar and Narendra Dahotre, Butterworth-Heinemann (published by Elsevier and Academic Press), ISBN #13-987-0-7506-7716-5 and ISBN 10-0-7506-7716-3) 2006 Elsevier

Scholarly Books

  • Ashok Kumar, Yip-Wah Chung, and Ray W. J. Chia Hard Coatings Based on Borides, Carbides and Nitrides: Synthesis, Characterization and Applications, (ISBN # 0-87339-389-9), The Minerals, Metals & Materials Society, Warrendale, PA (1998)
  • Ashok Kumar, Yip-Wah Chung, John Moore, and John Smugeresky, TMS, (1999), Surface Engineering: Science and Technology I, (ISBN # 0-87339-427-5) The Minerals, Metals & Materials Society, Warrendale, PA (1999)
  • Wen Jin Meng, Ashok Kumar, Gary L. Doll, Yang-Tse Cheng, Stan Veprek, and Yip-Wah Chung, Surface Engineering 2001- Fundamentals and Applications, MRS Symposium Proceedings, Volume 697, (ISBN # 1-55899-633-8)), Materials Research Society, Warrendale, PA (2001)
  • Ashok Kumar, Yip-Wah Chung, John Moore, D. S. Misra, and K. Yatsui, “Surface Engineering: Science and Technology II, (ISBN # 0-87339-521-2) The Minerals, Metals & Materials Society, Warrendale, PA (2002)
  • Ashok Kumar, Wen Jin Meng, Yang-Tse Cheng, J. Zabinski, Gary L. Doll, and Stan Veprek (Editors), “ Surface Engineering 2002 – Synthesis, Characterization and Applications, Volume 750, (ISBN # 1-55899-687-7), Materials Research Society, Warrendale, PA (2002)
  • Ashok Kumar, Jeffrey A. Lee, Ingrid Vos, Yaw Obeng, and Earl C. Johns, “Chemical-Mechanical Planarization – Integration, Technology and Reliability, MRS Spring Meeting (2005)

Book Chapters

  • J. S. Kapat and Ashok Kumar “Chemical Vapor Deposition of Intermetallic and Ceramic Coatings” pp. 441-484, Edited by N. B. Dahotre and T. S. Sudarshan, Marcel Decker Inc., New York (1999)
  • Arun K. Sikder and Ashok Kumar, “Superhard Coatings in C-B-N System: Growth and Characterization”, Vol. 2, Chap. 3, pp. 115-190, Handbook of Thin Films Materials, Edited by Prof. H. S. Nalwa, Academic Press (2001)

Review Journal Paper

  • Parshuram B. Zantye, Ashok Kumar, A. K. Sikder, “Chemical Mechanical Planarization for Microelectronics Applications” Materials Science and Engineering R, Vol. 45/3-6, pp 89-220 (2004)

Recent Publications

  • R. K. Joshi, Q. Hu, F. Alvi, N. Joshi and A. Kumar "Au decorated ZnO Nanowires for CO sensors" - Journal of Physical Chemistry C- Vol. 113, pp 16199, 2009.
  • D. Kitenge, R. K. Joshi, M. Hirai and A. Kumar, "Ag nanoparticle based optical gas sensor" IEEE Sensors Journal in press 2009.
  • Q. Hu, R. K. Joshi, and A. Kumar "Electrons diffusion study on the nitrogen doped nanocrystalline diamond film by MPECVD method" Journal of Applied Physics- in press 2009
  • R. K. Joshi, S. Krishnan, M.Yoshimura and A. Kumar "Pd nanoparticles and thin films for hydrogen sensor" Nanoscale Research Letters, In press (10.1007/s11671-009-9379-6).
  • Q. Hu, M. Hirai, R. K. Joshi and A. Kumar "Structural and Electrical Characteristics of Nitrogen-doped Nanocystalline Diamond Films Prepared by CVD" Journal of Physics D: Applied Physics, Vol. 42, pp. 025301, Jan. 2009.
  • R. K. Joshi, M. Yoshimura, K. Tanaka K. Ueda, A. Kumar and N. Ramgir "Synthesis of vertically aligned Pd2Si nanowires in microwave plasma enhanced chemical vapor deposition system, Journal Physical Chemistry C, Vol. 112, pp. 13901, Sept.2008
  • Amperometric Detection of Glucose Using a Modified Nitrogen-Doped Nanocrystalline Diamond Electrode Zhenqing Xu, Ashok Kumar and Arun Kumar
  • Investigation of the non-uniformities in polyurethane chemical mechanical planarization pads. Parashuram Zant, Ashok Kumar, William Dallas, Sergei Ostapenko, Arun K. Sikder
  • Metrology and characterization of application specific chemical mechanical polishing pads Parashuram Zantye, S. Mudhivarthi, Ashok Kumar and Yaw Oben
  • Novel lactate and pH biosensor for skin and sweat analysis based on single walled carbon nanotubes. Jessica Weber, Arun Kumar, Ashok Kumar and Shekhar Bhansali
  • Effect of Slurry Temperature on Cu Chemical Mechanical Polishing with Different Oxidizing Agents Subrahmanya Mudhivarthi and Ashok Kumar
  • In-situ Metrology for End Point Detection during Chemical Mechanical Polishing of Shallow Trench Isolation Structure Parshuram B. Zantye, S. Mudhivarthi, Ashok Kumar and David Evans
  • Effect of Temperature on Defect Generation during Copper Chemical Mechanical Planarization Subrahmanya Mudhivarthi, Parshuram Zantye, Ashok Kumar, andJeung-Yeop Shim
  • Material Reliability and Integration Issues of Polyimide and Benzocyclobutene Interlayer Dielectric Materials Parshuram B. Zantye, Ashok Kumar, R. Gopalkrishnan and S. Balakumar
  • Metrology and Characterization of Application Specific Chemical Mechanical Polishing Pads Parshuram B. Zantye, S. Mudhivarthi, Ashok Kumar
  • Metrology of Psiloquest’s Application Specific Pads (ASP) for CMP Applications Parshuram B. Zantye, S. Mudhivarthi, Arun K.Sikder , Ashok Kumar and Yaw Obeng
  • Deposition of Adherent Diamond Coating on WC-Co Substrate Zhenqing Xu, Leonid Lev, Michael Lukitsch, and Ashok Kumar
  • Adhesion Improvement of CVD Diamond Coatings on WC-Co Substrates for Machining Applications Zhenqing Xu, Ashok Kumar, Leonid Lev, Michael Lukitsch, and Arun Sikder
  • Optimization of Psiloquest's Application Specific CMP Pads for Commercialization Parshuram B. Zantye, Yaw Obeng, S. Mudhivarthi and Ashok Kumar
  • Investigation of Mechanical Integrity and its effect on Polishing for Novel Polyurethane Polishing Pad Parshuram Zantye, S. Mudhivarthi, A. K. Sikder, Ashok Kumar, S. Ostapenko and Julie Harmon
  • Effects of Slurry Flow Rate and Pad Conditioning Temperature on Dishing, Erosion and Metal Loss During Copper CMP S. Raghu Mudhivarthi, Norm Gitis, Suresh Kuiry, Michael Vinogradov and Ashok Kumar
  • Effect of pad conditioning process during Chemical Mechanical Planarization. S. Raghu Mudhivarthi, Norm Gitis, Suresh Kuiry, Michael Vinogradov, and Ashok Kumar
  • Optimization of Psiloquest's Application Specific CMP Pads for Commercialization Parshuram B. Zantye, Yaw Obeng, S. Mudhivarthi and Ashok Kumar

Other Selected Publications

  • Ashok Kumar, L. Ganapathi and J.Narayan "In-situ processing of textured superconducting thin films of Bi-(Pb)-Ca-Sr-Cu-Ox by excimer laser ablation" Appl. Phys. Lett. 56, 2034-2036 (1990)
  • Ashok Kumar, L. Ganapathi, S. M. Kanetkar and J.Narayan "Single chamber in-situ processing of superconducting YBa2 Cu3O7-δ thin films on stainless steel with yttria-stabilized zirconiea buffer layer" J. Appl. Phys. 69, 2410-2413 (1991)
  • L. Ganapathi, Ashok Kumar and J. Narayan "In-situ processing of LaBa2Cu3O7 thin films by laser ablation method" Physica C 168, 599-604 (1990)
  • A. M. Gokhale and Ashok Kumar "Analysis of particle coarsening in Al-Pb alloy" Transaction of Indian Institute of Metal, volume 42, No.4, 401-404 (1989)
  • Ashok Kumar, J. Narayan and Bijoy Patnaik "Trilayered heterostructures in-situ laser deposited high temperature superconductors" Physica C 209 421-427 (1993)
  • N. Shu, Ashok Kumar, M. R. Alam, H. L. Chan and Q. You “Study of dielectrical properties of laser processed BaTiO3 thin films on Si(100) with TiN buffer layers” Applied Surface Science, 109/110, 366-370 (1997)
  • M. R. Alam, Ashok Kumar, A. Mangiarcina and M. Shamsuzzoha “Synthesis of the PZT films deposited on Pt-coated (100) Si substrates for nonvolatile memory applications” J. of Electronic Materials, Vol. 28, No. 10, 1331-1334 (1997)
  • Ashok Kumar, Q. You, A. Mangiarcina, J. S. Kapat, S. A. Catledge and Y. Vohra “Evaluation of barrier layer for HFCVD diamond films on silicon substrates” Thin Solid Films, vol. 308-309, pp 209-214 (1997)
  • Ashok Kumar, H. L. Chan and Y. Vohra “Characterization of pulsed laser deposited diamond-like carbon films” Surface Coatings & Technology, 102, 113-118 (1998)
  • Ashok Kumar, “Pulsed laser deposition of superhard nitride coatings” Materials and Manufacturing Processes, Vol. 14, No. 3, 397-411 (1999)
  • R. Bahl, Ashok Kumar, M. Vedawuas, and D. Patel “Synthesis and characterization of TiC and TiCN coatings” Applied Physics A Materials Science & Processing, A 69, 643-646 (1999)
  • Ashok Kumar and M. Shamsuzzoha, “Effects of Pre-treated substrates on the growth morphology of diamond films prepared by the hot filament chemical vapor deposition method” New Diamond and Frontier Carbon Technology, vol. 9, No. 6, 445-458, (1999)
  • Ashok Kumar, I. Ahmed and M. Vedawyas “Growth of diamond films on Ti-6Al-4V substrates and determination of residual stresses using Raman spectroscopy” J. Vac. Sci. Technol. A 18 (5), 2486-2492 Sep/Oct (2000)
  • Ashok Kumar, and P. Zantye, “Biosensors based on Piezoelectric Crystal Detectors: Theory and Applications” Journal of Metals, October (2000)
  • A. K. Sikder, Frank Giglio, John Wood, Ashok and J.M. Anthony "Optimization of Tribological Properties of Silicon Dioxide during the Chemical Mechanical Planarization Process”, J. Elec. Mater., 30, 1522-26 (2001)
  • A. K. Sikder and Ashok Kumar "Mechanical and Tribological Properties of Interlayer Coatings for Cu Damascene Process”, J. Electronic Materials, 31, 1016-1021 (2002)
  • A. K. Sikder, I.M. Irfan, Ashok Kumar and J.M. Anthony “Nano-indentation studies of Xerogel and SiLK low-K dielectric materials”, J. Elec. Mater., 30, 1527-31 (2001)
  • P.A.O. Muisener, L. Clayton, J. D’Angelo, J.P. Harmon, A. K. Sikder, Ashok Kumar, A.M. Cassell and Meyya Meyyappan “The Effects of Gamma Radiation on Poly (methyl Methacrylate)/Single Wall Nanotube Composites”, J. Mater. Res., 17 (10), 2507-2513 (2002)