Technical Library | 2019-07-10 23:36:14.0
Pockets of gas, or voids, trapped in the solder interface between discrete power management devices and circuit assemblies are, unfortunately, excellent insulators, or barriers to thermal conductivity. This resistance to heat flow reduces the electrical efficiency of these devices, reducing battery life and expected functional life time of electronic assemblies. There is also a corresponding increase in current density (as the area for current conduction is reduced) that generates additional heat, further leading to performance degradation.
Technical Library | 2023-01-17 17:19:44.0
A test program was developed to evaluate the effectiveness of vacuum reflow processing on solder joint voiding and subsequent thermal cycling performance. Area array package test vehicles were assembled using conventional reflow processing and a solder paste that generated substantial void content in the solder joints. Half of the population of test vehicles then were re-processed (reflowed) using vacuum reflow. Transmission x-ray inspection showed a significant reduction in solder voiding after vacuum processing. The solder attachment reliability of the conventional and vacuum reflowed test vehicles was characterized and compared using two different accelerated thermal cycling profiles. The thermal cycling results are discussed in terms of the general impact of voiding on solder thermal fatigue reliability, results from the open literature, and the evolving industry standards for solder voiding. Recommendations are made for further work based on other void reduction methods and additional reliability studies.
Industry News | 2003-03-06 08:29:50.0
Coretec experienced sequential growth in sales over the last four quarters and, while its yearly sales did decline, said its sales record still compares favorably
Events Calendar | Thu Jan 10 00:00:00 EST 2019 - Thu Jan 10 00:00:00 EST 2019 | Manassas, Virginia USA
SMTA Capital Chapter: Operation of a Vacuum Reflow Oven with Preliminary Void Reduction Data
Events Calendar | Mon Dec 02 00:00:00 EST 2019 - Mon Dec 02 00:00:00 EST 2019 | ,
Webinar: QFN/LGA Design, Assembly Process Issues & Reliability Failures
Industry News | 2018-12-11 19:24:48.0
The SMTA Capital Chapter is excited to host a Chapter Meeting on January 10th from 5:00 PM to 7:30 PM at ZESTRON, Manassas, VA. Fred Dimock, BTU International, will be presenting “Operation of a Vacuum Reflow Oven with Preliminary Void Reduction Data.”
Industry News | 2021-01-06 17:17:19.0
The SMTA Capital Chapter is excited to host the first chapter webinar of 2021 on January20that11:00 AM EST.Fred Dimock, BTU International, will be presenting "Operation of a Vacuum Reflow Oven with Updated Void Reduction Data."
Events Calendar | Wed Mar 07 00:00:00 EST 2018 - Wed Mar 07 00:00:00 EST 2018 | ,
Solder Paste Qualification Testing - SMTA Webinar
Industry News | 2012-04-12 12:39:48.0
Flexible circuit technology is utilized in all market sectors, including military, telecommunications, medical and consumer products.
Industry News | 2010-02-17 18:45:59.0
The SMTA International Technical Committee invites you to submit an abstract for the 2010 conference. Short course descriptions are also being solicited.
