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Dr. Daniel N. Donahoe is a Managing Engineer in Exponent’s Mechanical Engineering and Materials/Metallurgy practice. Dr. Donahoe has over two decades of industrial experience working with defense electronics and commercial electronics. Prior to joining Exponent he has been employed at Lockheed Motorola Ford Aerospace Teledyne Compaq Computer and Iomega and the University of Maryland’s industry and government sponsored CALCE Electronic Products and Systems Center. His functional assignments include work as a design engineer reliability engineer thermal engineer manager technologist and scientist. In military electronics he worked on electronics exposed to extreme environments ranging from the high acceleration loads of gun launch to thermal challenges faced in life support the design of radar systems. In addition to electronic products exposed to exotic environments he has worked on cost-driven commercial electronics products such as cooling of computer components. He has worked on integrating rack and stacked electronics into facilities especially focusing on the design of HVAC (Heating Ventilation and Air Conditioning). His electronic packaging analysis skills include thermal analysis stress and dynamics analysis and failure analysis. His Ph.D. dissertation on ceramic capacitors included failure analysis work using modern tools of failure analysis including the environmental scanning electron microscope (ESEM) electron backscatter diffraction (EBSD) and focused ion beam (FIB). | 