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Maureen E. Williams (Fed)

My research is focused on Sn whiskers. I am currently the project leader of the NIST Sn Whisker Project. This project is working on the fundamental growth mechanism of Sn whiskers.

Since 1999 I have been involved in the International Electronics Manufacturing Initiative (iNEMI) Sn whisker projects and from 2001 until 2007 was co-chair of the iNEMI Sn Whisker Modeling Group.  In 2009 I represented NIST on a team of sixteen nationally-recognized expert scientists and engineers on Phases 1 & 2 of the Lead Free Electronics Manhattan Project (LFMP), sponsored by the Office of Naval Research and the Joint Defense Manufacturing Technology Panel, to address the serious reliability threat from lead-free solders and surface finishes that are infiltrating critical aerospace and defense systems. The third phase of the LFMP project, re-named the Lead-free Electronics Risk Reduction Program, has articulated eighty research and development (R&D) tasks needed to address the lead-free technology knowledge gaps and funding is being sought to implement this R&D program.  My areas of interest include scanning electron microscopy (SEM), Focused Ion Beam (FIB), and x-ray diffraction.



NEMI Tin Whisker Test Method Standards

I Boguslavsky, P Bush, E Kam-Lum, M Kwoka, J McCullen, K Spalding, K Vo, Maureen E. Williams
The need to better understand whisker growth has dramatically increased as component suppliers convert from tin-lead (SnPb) finishes to Pb-free finishes of Sn

Tin Whisker Test Method Development

Valeska Schroeder, P Bush, Nick Vo, Maureen E. Williams
In response to legislation banning Pb from electronics, any component suppliers plan to implement tin-based lead-free surfaces finishes to replace current Sn-Pb

Development of Computational Framework for Titanium Alloy Phase Transformation Prediction in Laser Powder-bed Direct Energy Additive Manufacturing

Zhi Liang, Ivan Zhirnov, Fan Zhang, Kevontrez K. Jones, David C. Deisenroth, Maureen E. Williams, Ursula R. Kattner, Kil-Won Moon, Wing-Kam Liu, Brandon M. Lane, Carelyn E. Campbell
In conjunction with bare metal single laser track validation experiments, a computational framework is proposed to accelerate the design and development of new
Created October 9, 2019, Updated October 24, 2022