New Equipment | Education/Training
Bob Willis has an extensive range of training videos available online. The complete video collection is available to view online for a fixed fee, based on a six month period. After purchase you are provided with links to each of the online videos for
Electronics Forum | Fri Nov 22 16:59:43 EST 2019 | dwl
I'm worried about the voids that you have on the heel fillet of the leads. Off the top of my head, I don't recall if/what the IPC spec is for voids in gull lead fillets is but my gut instinct is that you're compromising the mechanical strength of the
Electronics Forum | Sun Dec 10 11:55:16 EST 2000 | Bob Willis
The following may be of interest to you. INTRODUCTION TO X-RAY INSPECTION All text Copyright Bob Willis, EPS INTRODUCTION TO X-RAY INSPECTION The use of X-ray inspection is becoming very popular due to the increased use of Ball Grid Array (BGA)
Industry News | 2018-12-08 03:29:29.0
SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
Industry News | 2015-03-16 06:51:04.0
Void Formation in Solder Joints – Causes & Cures Webinar Monday 18th May 2.30pm GMT Voiding in solder joints is not new we have experienced cavities in solder joints during the introduction of through hole, surface mount and more recently area array technology. In many cases we never knew we have had voids till the introduction of x-ray inspection.
Technical Library | 2012-08-30 21:24:29.0
This paper provides definitions of the different voiding types encountered in Gull Wing solder joint geometries. It further provides corresponding reliability data that support some level of inclusion voiding in these solder joints and identifies the final criteria being applied for certain IBM Server applications. Such acceptance criteria can be applied using various available x-ray inspection techniques on a production or sample basis. The bulk of supporting data to date has been gathered through RoHS server exempt SnPb eutectic soldering operations but it is expected to provide a reasonable baseline for pending Pb-free solder applications.
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The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.
Inclusion Voiding in Gull Wing Solder Joints SMTnet Express August 30, 2012, Subscribers: 25432, Members: Companies: 8960, Users: 33565 Inclusion Voiding in Gull Wing Solder Joints First published in the 2012 IPC APEX EXPO technical conference
