A manufacturer of computer based products in Brazil has experienced a sudden increase of failures in the LCDs (Liquid Crystal Displays) used in its products returned from field. The failures appear as dark columns. This paper describes the technique applied to find out the root cause of the failures. Conclusions pointed to a problem in the process for curing the adhesive conductive film (ACF), which provides connection of flip chip drivers to the LCD.

adhesive conductive films, failure analysis, flip chip drivers, liquid crystal displays, root cause analysis
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Copyright © 2002 ASM International. All rights reserved.
2002
ASM International
Topics
Semiconductor wafer fabrication Root cause analysis
Issue Section:
Discretes
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