Electronics Forum | Wed May 24 19:46:32 EDT 2006 | JohnM
So, it looks like the backward compatible of BGA statement is not guarantee for solder joint reliability. It doesn�t matter what temperature and what melting sequence we have in order to avoid the solder void issue. Is Pb diffused homogeneously thr
Electronics Forum | Sun Mar 31 00:42:09 EDT 2013 | dhanish
Why we cannot run Pb Free BGA with Sn/Pb process but we can run high temp BGA(90/10) with Sn/Pb? Both require high temperature to form the IMC.Why there is a difference in the reliability?
Industry News | 2008-07-03 21:21:50.0
OXFORD, CT � July 2, 2008 � MIRTEC Co. Ltd. announces that sales revenue for its North American Sales and Service Division grew by more than 81 percent for the first six months of fiscal 2008 with respect to 2007 results.
Industry News | 2012-09-17 16:26:16.0
Nihon Superior, has announced details of its participation in the Technical Program of SMTAI 2012
Technical Library | 2022-10-31 17:09:04.0
The global transition to lead-free (Pb-free) electronics has led component and equipment manufacturers to transform their tin–lead (SnPb) processes to Pb-free. At the same time, Pb-free legislation has granted exemptions for some products whose applications require high long-term reliability. However, due to a reduction in the availability of SnPb components, compatibility concerns can arise if Pb-free components have to be utilized in a SnPb assembly. This compatibility situation of attaching a Pb-free component in a SnPb assembly is generally termed "backward compatibility." This paper presents the results of microstructural analysis of mixed solder joints which are formed by attaching Pb-free solder balls (SnAgCu) of a ball-grid-array component using SnPb paste. The experiment evaluates the Pb phase coarsening in bulk solder microstructure and the study of intermetallic compounds formed at the interface between the solder and the copper pad.
Technical Library | 2015-01-08 17:26:59.0
Regardless of the accelerating trend for design and conversion to Pb-free manufacturing, many high reliability electronic equipment producers continue to manufacture and support tin-lead (SnPb) electronic products. Certain high reliability electronic products from the telecommunication, military, and medical sectors manufacture using SnPb solder assembly and remain in compliance with the RoHS Directive (restriction on certain hazardous substances) by invoking the European Union Pb-in-solder exemption. Sustaining SnPb manufacturing has become more challenging because the global component supply chain is converting rapidly to Pb-free offerings and has a decreasing motivation to continue producing SnPb product for the low-volume, high reliability end users. Availability of critical, larger SnPb BGA components is a growing concern
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Career Center | Rochester, New York USA | Engineering
I have done my undergraduate studies in Mechanical Engineering. I am pursuing my Master's Program in Electronics Packaging. I am currently working as a Research Assistant for RIT-CEMA (Center for Electronics Manufacturing and Assembly). My research
SMTnet Express, November 19, 2015, Subscribers: 23,763, Members: Companies: 14,760, Users: 39,366 HALT Testing of Backward Soldered BGAs on a Military Product B. Gumpert, B. Fox, L. Woody; Lockheed Martin Corporation The move to lead free (Pb
SMTnet Express, January 8, 2015, Subscribers: 23,708, Members: Companies: 14,158 , Users: 37,476 The Effect of Pb Mixing Levels on Solder Joint Reliability and Failure Mode of Backward Compatible, High Density Ball Grid Array Assemblies Richard
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quotes or apostrophes and that all text items (except items starting with "@") be enclosed in quotes for compatibility with other software. Import/Export Data 10/25/07 GPD Global ® Page 3 Format File Records Format files and format specifications within a