NASA Goddard Space Flight Center

Effect of Uralane Conformal Coating on Tin Whisker Growth

10/24/00


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Table of Contents

Effect of Uralane Conformal Coating on Tin Whisker Growth

Outline

Background

Background (cont’)

Background (cont’)

Objectives

Sample Preparation

Sample Preparation and Test conditions

Additional Information about the Samples

Preliminary Result

Population of the Tin Whiskers

Sequence of Tin Whisker Growth

PPT Slide

SEM Photos of Conformal Coated Side

Then and Now

SEM Photos of Conformal Coated Side

Tin Whisker Growth Rate Comparison

PPT Slide

Tin Whisker Growth Rate Comparison (Cont’)

Characterize the Voltage Breakdown Strength of Uralane 5750

Characterize the Breakdown Strength of Uralane 5750 (cont’)

Buckling of Tin Whiskers

PPT Slide

Tin Whisker Contact Against Uralane

PPT Slide

Electrostatic Attraction

Electrostatic Attraction

Conclusions

Further Information

Author: Jong S. Kadesch
Responsible NASA Officials:

   Michael Sampson/NASA GSFC Code 306
   Dr. Henning Leidecker/NASA GSFC Code 562
Additional Researchers: 

   Jong Kadesch/Orbital Sciences Corp.
   Jay Brusse/QSS Group, Inc.

Last Updated:

April 20, 2005

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