Mistras Group, Inc. : AE Pad Cratering Detection of Printed Circuit Boards
January 28, 2013 at 04:07 pm
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Printed circuit boards help power some of the industry's greatest and most advanced technologies, so ensuring their proper functionality is paramount. Yet electronics assemblies with large flip-chip BGA packages can be prone to either pad cratering or brittle intermetallic (IMC) failures under excessive printed circuit board bending.
Electrical testing or non-destructive testing methods cannot detect pad cratering cracks, which pose a long-term risk to reliability since cracks may spread under increased loads and subsequently lead to electrical failure. Since the beginning of pad cratering doesn't produce an instantaneous electrical signature, early detection has been an issue.
Currently, the industry is challenged by the inability to detect pad cratering without an explicit electronic signature in an efficient fashion. The process of pad cratering initiates well ahead of actual electronic failure, which gives ample time for detection and location, provided the right diagnostic solution is in place - like Acoustic Emission (AE) testing.
For more information, call MISTRAS at 1(609) 716-4000 today!
Mistras Group, Inc. is a provider of integrated technology-enabled asset protection solutions. The Companyâs segments include North America, International and Products and Systems. Its North America segment provides asset protection solutions in the United States and Canada, which consists primarily of non-destructive testing, inspection, mechanical and engineering services that are used to evaluate the structural integrity and reliability of critical energy, industrial and public infrastructure and commercial aerospace components. Software, digital and data services are included in this segment. Its International segment offers services, products and systems similar to those of the other segments to select markets within Europe, the Middle East, Africa, Asia and South America. Its Products and Systems segment designs, manufactures, sells, installs and services its asset protection products and systems, including equipment and instrumentation, predominantly in the United States.