New Equipment | Rework & Repair Equipment
Visit PSI's main Coplanarity Services page for more information. PSI has over 20 years experience restoring gull wing leads on QFP and SOIC packages, as well as myriad surface mount connector styles. The goal of lead restoration is not to mimic "l
New Equipment | Solder Materials
Introducing LF-4300 (lead-free) and 4300 (tin-lead), two revolutionary synthetic solder pastes that offer such unparalleled versatility and forgiveness, we still don’t believe it. Both the LF-4300 and the 4300 offer true multi-process capabilities,
Electronics Forum | Wed Mar 09 16:55:02 EST 2011 | davef
We agree with the previous poster. Open-up your aperture to increase the amount of solder paste. If you don't have a heel fillet, go home.
Electronics Forum | Thu Apr 17 13:35:49 EDT 2003 | davef
A-610 talks to acceptable voiding.
Industry News | 2018-12-08 03:29:29.0
SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
Industry News | 2017-01-18 05:21:35.0
This photo CD ROM provides the process or quality engineer with a source of PIHR photographs of the assembly process, components and process defects which may be used in company inspection document or training presentations. They may be simply pasted into any document for in house company use. Now over 250 photographs are provided in either jpg or tif file format for use in PowerPoint, Word inspection standards or online publications royalty free http://www.bobwillis.co.uk/product-category/photo-cd-rom/
Technical Library | 2018-09-26 20:33:26.0
Bottom terminated components, or BTCs, have been rapidly incorporated into PCB designs because of their low cost, small footprint and overall reliability. The combination of leadless terminations with underside ground/thermal pads have presented a multitude of challenges to PCB assemblers, including tilting, poor solder fillet formation, difficult inspection and – most notably – center pad voiding. Voids in large SMT solder joints can be difficult to predict and control due to the variety of input variables that can influence their formation. Solder paste chemistries, PCB final finishes, and reflow profiles and atmospheres have all been scrutinized, and their effects well documented. Additionally, many of the published center pad voiding studies have focused on optimizing center pad footprint and stencil aperture designs. This study focuses on I/O pad stencil modifications rather than center pad modifications. It shows a no-cost, easily implemented I/O design guideline that can be deployed to consistently and repeatedly reduce void formation on BTC-style packages.
Training Courses | | | IPC-A-610 Trainer (CIT)
The Certified IPC-A-610 Trainer (CIT) courses recognize individuals as qualified trainers in the area of quality assurance of electrical and electronic assemblies and prepares them to deliver Certified IPC-A-610 (CIS) training.
Training Courses | | | IPC-A-610 Trainer (CIT)
The Certified IPC-A-610 Trainer (CIT) courses recognize individuals as qualified trainers in the area of quality assurance of electrical and electronic assemblies and prepares them to deliver Certified IPC-A-610 (CIS) training.
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/leadfree.pdf
: Nitrogen Temperature:240°C Excellent Wetting in Toe and Heel – Small, Acceptable Voids Cross Section of QFP Solder Fillet PROPRIETARY AND CONFIDENTIAL INFORMATION Pages: 16 of 24 Rev Level: 1 Rev Date: 1/03/01 Test # 8 Material
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