iNEMI » cms » calendar » 06_ECTC_TW_Workshop.html
Print Version
   

Calendar
Tin Whisker Workshop
56th Electronic Components and
Technology Conference
(ECTC)

Tuesday, May 30, 2006; 8:30 a.m. - 5:00 p.m.
Sheraton San Diego; San Diego, California
Sponsored by iNEMI, ECTC and CPMT
Chair: R.W. Gedney, iNEMI; Co-Chair: M.E.Williams, NIST
Moderator: H. Leidecker, NASA

Preliminary Agenda

Abstracts

The electronics industry has been aware of tin whiskers for 50 years, and many mitigation strategies have been used to prevent whiskers, thus assuring reliability in electronic assemblies. Most of these strategies involved the addition of lead to the tin coating, and as the industry moves to Pb-free assemblies, tin whiskers are again a concern. iNEMI has been studying this problem for several years.

This workshop will review the results of the latest series of iNEMI experiments for tin whiskers.  Tin whisker theory will also be updated with the latest thinking on how tin whiskers are formed.  Techniques for mitigating tin whiskers, quality control and manufacturing impact will be discussed.  In addition, a roundtable discussion featuring suppliers and end users will provide insight into the intent and recommended implementation of new JEDEC/IPC specifications that address tin whiskers (JP 002, Current Tin Whisker Theory and Mitigation Practices Guideline; JESD 201, Environmental Acceptance Requirements For Tin Whisker Susceptibility of Tin and Tin Alloy Surface Finishes; and JESD22-A121, Tin Whisker Test Method). The goal is to help industry develop strategies for eliminating — or at least controlling — tin whiskers in order to assure reliability in long life cycle applications.

Workshop registration
This workshop is part of ECTC, and registration is being handled through ECTC, and participants must register for at least one day of the conference in addition to registering for the workshop.  Click here for online registration.

Click here for additional details about ECTC 2006.

Download ECTC advance program.

Preliminary Agenda

8:00 am  Introduction and Overview
Henning Leidecker (NASA), Moderator

8:15 am

Update on Current iNEMI Experiments for Tin Whisker Test Method Optimization
Heidi Reynolds (Sun Microsystems)

9:15 am 

Analysis and Theory for Tin Whisker Formation
George Galyon (IBM)

10:00 am     

Break

10:20 am


Correlation between Sn Deposit Microstructure and Deposition Current Density
Kil-Won Moon (NIST)


10:50 am

An Electrical Characterization of Tin Whiskers
Bob Hilty (Tyco Electronics)

11:20 am

Impact of Second Level Board Assembly on Tin Whisker Growth for Alloy 42 TSOPs Subjected to Thermal Cycling
Gren Henshall (HP)

Noon

Lunch

1:15 pm 

Whisker Mitigation Strategies
Chen Xu (Cookson Electronics)

1:40 pm

A Finite Element Study of Strain Energy Density Distribution Near a Triple Grain Junction and Its Implication on Whisker Growth
Peng Su (Freescale Semiconductor)

2:10 pm 

Effect of Lead on Tin Whisker Elimination
Wan Zhang (Rohm and Haas Electronic Materials)

2:35 pm 

Whisker Growth Under Several Conditions and Corresponding Test Methods
Werner Hugel (Robert Bosch GmbH)

3:00 pm

Round Table Discussion of New JEDEC Tin Whisker Specifications and How They Are Being Implemented from Both User and Supplier Perspectives
Joe Smetana (Alcatel), Moderator

3:30 pm

Break

3:50 pm

Round Table Discussion (continued)

5:00 pm
 
Wrap-Up

5:15 pm     

Adjourn