+ View the NASA Portal NEPP Website Search   Powered By Google Your Path: Home » Search » Browse Publications   EEE Links   eFlash Spotlight   Display Latest Documents   Display Latest Parts Tested   NEPP Products Formats   Get Adobe Acrobat Reader   Search         BACK to Publication List Results of Screening and Qualification Testing of COTS PEMs for Space Applications and Lessons Learn File Name: LL 2004.pdf | Date Submitted: 02/14/05   File Size: 1372KB Document Author Alexander Teverovsky - ateverov@pop300.gsfc.nasa.gov GSFC on-site Contractor Phone: 301 286-9691 | FAX: None On File [Additional User Information] Download "Results of Screening and Qualification Testing of COTS PEMs for Space Applications and Lessons Learn" (1372KB) Now.   Description:   Abstract: Fourteen different commercial linear and mixed signal plastic encapsulated microcircuits (PEMs) with lot quantities varying from 85 to more than 3500, have been screened and subjected to reliability qualification testing for several GSFC projects during 2003-2004 period. The testing included electrical measurements at three temperatures, burn-in (BI), acoustic microscopy (C-SAM mode), temperature cycling, high temperature operational life test (HTOL), and highly accelerated stress testing (HAST) at 130 oC/85% RH. The glass transition temperatures of molding compounds used were measured and compared with the data sheet temperatures of the parts and test results. This presentation reports on statistics of the test data, revealed anomalies and problems, and on results of failure analysis. The effectiveness of different testing procedures and in particular, CSAM examinations is discussed. The lessons learned from this experience have been used to improve the GSFC guidelines for design evaluation, screening, and qualification of commercial parts intended for space applications.   Related Project(s): EPAC (Electronic Packaging)   Related Area(s) of Emphasis: Newly Available Technologies and COTS     NEPP Program Manager: Michael J. Sampson Responsible NASA Official: Michael J. Sampson Webmaster: Carl M. Szabo, Jr.       Last Updated: May 21, 2004