Technical Library | 2020-05-08 18:22:31.0
A customer contacted the Helpline to perform analysis on a lead-free assembly which exhibited intermittent functionality. The lead-free assembly exhibiting intermittent functionality when pressure was applied to the ball grid array (BGA) packages. Industrial adaptation of a Restriction of Hazardous Substances (RoHS) compliant solder standard has created a new host of failure modes observed in lead-free assemblies. Pad cratering occurs when fractures propagate along the epoxy resin layer on the underside of the BGA connecting pads. While originating from process, design, and end use conditions, it is the combination of a rigid lead-free solder with inflexible printed circuit board (PCB) laminates that has advanced the prevalence of this condition. Pad cratering is simply the result of mechanical stress exceeding material limitations.
Industry News | 2013-01-30 17:54:43.0
Design, assembly, inspection and repair personnel have a new tool to help improve reliability of ball grid arrays (BGAs) and fine-pitch ball grid arrays (FBGAs) in high density applications, thanks to the newly released C revision of IPC-7095, Design and Assembly Process Implementation for BGAs.
Industry News | 2007-10-04 23:11:30.0
LOS ALAMITOS, CA - September 25, 2007 - Practical Components, a leading international distributor of mechanical IC samples or �dummy� components and SMD production tools and equipment, announces that it will display its latest technology in booth 510 at the upcoming SMTA International exhibition and conference, scheduled to take place October 7-11, 2007, in Orlando, FL.
Parts & Supplies | SPI / Solder Paste Inspection
Quick programming, friendly programming interface Multiple measurement methods True one-button measurement Eight-way motion button, one-click focus Adjustable scanning pitch Solder paste 3D simulation function Powerful SPC function MARK
Industry News | 2011-12-14 15:35:33.0
Manufacturing processes, handling and printed circuit assembly (PCA) test can put a lot of mechanical stresses on packages, causing failures. As grid array packages get larger, identifying how to set safe levels for these steps becomes more difficult. A new quantitative test methodology within IPC/JEDEC-9707, Spherical Bend Test Method for Characterization of Board Level Interconnects, lets users determine how much strain packages can take before reliability degradation.
Industry News | 2008-09-02 15:34:36.0
Minneapolis, MN � The 2008 Charles Hutchins Educational Grant recipient, Lei Nie, a graduate student in the field of Mechanical Engineering at the University of Maryland, has been selected by the SMTA Grant Committee for her project entitled "Reliability of Reballed and Reworked Plastic Ball Grid Arrays in SnPb and SAC Assembly Process".
Industry News | 2010-04-30 18:47:15.0
SMTA China announces that it presented awards for the 10 best papers/presentations and two best exhibits at the SMTA China East 2010 Conference Award Presentation Ceremony, held on Wednesday, April 21, 2010 at the Shanghai Everbright International Hotel in conjunction with the SMTA China Annual Breakfast Reception.
Industry News | 2016-02-10 15:50:38.0
SMTA is excited to announce the finalized program and registration is now open for the South East Asia Technical Conference on Electronics Assembly. The event will be held April 12-14, 2016 at the Eastin Hotel in Penang, Malaysia.
Industry News | 2003-06-09 08:40:10.0
The Opening Session and Annual Meeting during SMTA International will be held on Tuesday, September 23.
Industry News | 2012-02-23 14:43:13.0
IPC has announced the winners of the Best U.S. and International Papers of IPC APEX EXPO® 2012. Selected through a ballot process by the event’s Technical Program Committee, the papers will be presented at IPC APEX EXPO, February 28–March 1, at the San Diego Convention Center.
