search

UMD    AML





Sungwon Han and Curtis Johnson (ME students)and Dr. Mike Osterman

Sungwon Han and Curtis Johnson (ME students)and Dr. Mike Osterman

 

The International Microelectronics and Packaging Society (IMAPS) and the 2011 Military ATW Committee awarded ME graduate students and Center for Advanced Life Cycle Engineering (CALCE) members Sungwon Han and Curtis Johnson, along with faculty advisors Professor Michael Pecht and Dr. Michael Osterman, the 2011 Best Paper Award for their paper “Effectiveness of Conformal Coatings on Surface Mount Components as Tin Whisker Mitigation”. The paper was presented at the 2011 High Reliability Microelectronics for Military Applications Workshop in Linthicum Heights, Maryland, which was held from May 17-19, 2011. The award-winning paper examined the application of conformal coatings as a mitigation strategy to address failure risks presented by tin whiskers. The award includes a plaque and a cash prize of $1,000. Below is the abstract for this paper.

Conformal coating is considered to be a mitigation strategy to address the failure risk presented by tin whiskers. While various conformal coatings have been shown to be effective on whiskering tin plated coupons, the effective-ness of conformal coating on actual assembly hardware has not been adequately examined. In this study, sets of assembled quad flat packages were conformally coated and evaluated for tin whisker mitigation as well as the coating coverage. Six coating materials were examined. Whisker growth was examined after specimens were subjected sequential to temperature cyclings, corrosive gases and temperature and humidity conditions. Whiskers were observed on coated surfaces that had relative thin layer of coating. Paralyne C coating was found to be the most effective coating at whisker mitigation in terms of overall coating coverage and containing whiskers.

For more information, please visit the CALCE website.



June 17, 2011


«Previous Story  

 

 

Current Headlines

Search Open for Full-Time Faculty Positions in Mechanical Engineering

The Clark School Celebrates the Legacy and Impact of Black Engineers

In Memoriam: Reinhard Radermacher

Bentley, Sochol Groups Win Best Paper Award at IEEE MEMS

Huertas Cerdeira Receives NSF CAREER Award

Agonafer Receives Top Presidential Honor for Cooling Research

Balachandran Becomes Honorary RAeS Fellow

UMD Researchers Win Best Paper Award at IROS 2024

Maryland Engineers Take On Big Challenges in Medicine

CEEE Study Explores How AI Can Reduce HVAC Energy Consumption

 
 
Back to top  
AML Home Clark School Home UMD Home ENME Home