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Tin Whisker Mitigation Technologies for Sn-based Surface Finishes on Electronic…

Award Information

Department of Defense
Missile Defense Agency
Award ID:
Program Year/Program:
2010 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
MDA 08T010
Solicitation Number:
Small Business Information
Foresite, Inc.
1982 S. Elizabeth St. Kokomo, IN 46902-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2010
Title: Tin Whisker Mitigation Technologies for Sn-based Surface Finishes on Electronic Assemblies and Microelectronic Devices
Agency / Branch: DOD / MDA
Contract: HQ0006-10-C-7204
Award Amount: $498,966.00


The impact of metal whiskers on the reliability of electronics has been exacerbated by environmentally-driven efforts to eliminate lead from tin plating and solders. Even exempt applications, such as military, are affected due to COTS. Foresite, Inc., a consultant, laboratory and test equipment development company, has a goal for the subject research, in collaboration with Purdue University, to develop a valid, accelerated test that will measure the susceptibility of a surface to whisker nucleation and growth, particularly through the introduction of known, controlled, surface contamination to act as an accelerant. Foresite research indicates a correlation between ionic residue levels and whisker growth. Phase I produced whisker activity on tin plated, 65oC test samples, in 5 days equal to that activity produced in 42 days of thermal-cycling JEDEC tests. In addition, differentiating whisker results were produced between five plating solutions, aligning with expectations based on previous Purdue research. Whisker samples and accelerated test protocol elements were produced in Phase I. In Phase II these samples will be further analyzed and test elements refined, leading to a final, documented and validated, accelerated, whisker test method. It is planned that a new sensor, based on this technology, will be developed in Phase III.

Principal Investigator:

Terry Munson

Business Contact:

Sandy Wheeler
Financial Manager
Small Business Information at Submission:

Foresite, Inc.
1982 S. Elizabeth St. Kokomo, IN 46902

EIN/Tax ID: 351846313
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Purdue University
School of Materials Engrg.
W. Lafayette, IN 47907
Contact: Carol Handwerker
Contact Phone: 7654940147