Ms. Sarah D. Shepherd Profile

Sarah D. Shepherd

Chemist at RTI International

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Publications (2)

Proceedings Article | 18 September 2014 Paper

New understandings of failure modes in SSL luminaires

Sarah Shepherd, Karmann Mills, Robert Yaga, Cortina Johnson, J. Lynn Davis

Proceedings Volume 9190, 919018 (2014) https://doi.org/10.1117/12.2062243

KEYWORDS: Capacitors, Resistors, Failure analysis, Diodes, Solid state lighting, Light emitting diodes, Transistors, Bridges, Electrical breakdown, Reliability

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Proceedings Article | 30 September 2013 Paper

Insights into accelerated aging of SSL luminaires

J. Lynn Davis, Michael Lamvik, James Bittle, Sarah Shepherd, Robert Yaga, Nick Baldasaro, Eric Solano, Georgiy Bobashev

Proceedings Volume 8835, 88350L (2013) https://doi.org/10.1117/12.2025295

KEYWORDS: Light emitting diodes, Reflectors, Transmittance, Solid state lighting, Lenses, Reflectivity, Humidity, Spectroscopy, FT-IR spectroscopy, Electronics

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