Management Team

Joseph A. Grzyb - Chief Executive Officer

Joseph A. Grzyb

Chief Executive Officer

Mr. Grzyb joined RNT as Chief Executive Officer in November 2004 bringing over 22 years of experience in leading, managing, and growing leading-edge semiconductor organizations. Prior to joining RNT, Mr. Grzyb spent eight years with RF Micro Devices in a variety of positions, most recently as General Manager of their largest division. His experience includes senior operating and executive positions with responsibility for overall P&L, strategy, marketing, engineering, product management and business development. He has also held senior positions at ITT Gallium Arsenide Technology Center, AmeriTech Exports, Inc. and the US Air Force’s Avionics Laboratory. Mr. Grzyb received his BS in Engineering and Masters in Chemical Engineering from Cornell University.

Timothy P. Weihs, Ph.D. - Co-Founder / Chief Technical Officer

Timothy P. Weihs, Ph.D.

Co-Founder / Chief Technical Officer

Dr. Weihs co-founded RNT in 2001 and currently serves as Chief Technical Officer. Dr. Weihs brings over 12 years of experience with materials joining and industrial research to the organization. Prior to co-founding RNT, Dr. Weihs worked at Lawrence Livermore National Laboratory where he co-discovered the benefits of using multilayer foils for joining materials. Dr. Weihs is a full Professor of Materials Science and Engineering at Johns Hopkins University. He received his B.E. and M.E. degrees in Engineering from Dartmouth College’s Thayer School of Engineering, and his Ph.D. in Materials Science and Engineering from Stanford University. In 2002, he was honored by the Daily Record with the "Innovator of the Year" award. Dr. Weihs has published more than 55 technical papers, obtained eight U.S. patents and has 12 patents pending.

Omar M. Knio, Ph.D.

Omar M. Knio, Ph.D.

Co-Founder / Senior Vice President

Dr. Knio co-founded RNT in 2001 and has served as Senior Vice President since its inception. He brings over 12 years of computer modeling and industry consulting experience to the company. Dr. Knio is the chief architect responsible for developing modeling software enabling RNT engineers to optimize its multilayer foil and produce a range of recipes for different joining and reaction initiation applications. Dr. Knio is also a full Professor of Mechanical Engineering at Johns Hopkins University. He received his B.E. in mechanical engineering from the American University of Beirut, and his S.M. and Ph.D. degrees in mechanical engineering from the Massachusetts Institute of Technology. He has published more than 60 technical papers, obtained one U.S. patent and has 12 Patents pending.

John J. Hannafin

John J. Hannafin

Vice President Business Development and Marketing

Mr. Hannafin joined RNT in 2005, bringing nearly twenty years of experience in the high-tech materials industry, including thermal interface materials and semiconductor manufacturing and packaging. Prior to joining RNT, Mr. Hannafin spent eight years with high-performance materials manufacturer Chomerics, a division of Parker Hannifin, in roles of increasing responsibility in global marketing and business development. In 2004 he received a Parker Hannifin 2004 Innovative Product of Year award for his work as program manager developing next generation semiconductor process consumables. Mr. Hannafin also held management positions with start-up venture Nexus Adhesive Corporation and Epoxy Technology, Inc. He has a BS in Electronic Engineering from the Wentworth Institute of Technology and an MBA from Babson College.

David Peter Van Heerden, PhD

David Peter Van Heerden, Ph.D.

Director of Research & Development

Dr. David Van Heerden has served as RNT’s Vice President of Research & Development in charge of multilayer foil development since 2002. He brings over ten years of experience in materials manufacturing and exothermic reactions research to the company. Prior to joining RNT, Dr. Van Heerden was an Associate Research Professor at Johns Hopkins University. Previously he was a research scientist at the National Institute of Standards and Technologies (NIST). In this role he worked on the fabrication of multilayer structures for aerospace applications as well as the production and manipulation of metastable microstructures for enhanced mechanical properties. Dr. Van Heerden received his B.S. degree in chemistry and physics, and his M.S. and Ph.D. degrees in Materials Engineering all at the University of Cape Town, South Africa. Dr. Van Heerden has spoken at numerous engineering conferences and has published more than 30 technical papers.

Reactive NanoTechnologies, Inc.
Address
111 Lake Front Dr.
Hunt Valley, MD 21030
Contact Info
Phone: 410-771-9801
Fax: 410-771-0586