Industry Directory | Manufacturer
A manufacturer of desoldering braid (wick) with an emphasis on continuing advancement in soldering/desoldering technology, visual and x-ray inspection systems, fume extraction, and solder paste inspection systems.
Industry Directory | Manufacturer
Supplier of high quality engineered materials, including conductive and resistive inks, UV curable dielectrics and insulators, adhesives, coatings, transducer inks and potting compounds.
Customer demand for highly sophisticated and ever smaller devices has made semiconductor packaging a vital contributor to system performance. As integrated circuits have become faster and more complex, the cost and performance of the interconnect bet
EP-1100 is a one-part adhesive epoxy designed for screen or stencil printing for component attachment, termination and other applications in: hybrid circuits membrane keypads other electromechanical assemblies EP-1100 exhibits excelle
Electronics Forum | Fri Dec 27 14:11:18 EST 2002 | cnotebaert
We have placed these parts. I have not had problems with them but when I designed the stencil we reduced the app for the large thermal by 20% to reduce the chance of problems like your having. If the balls are close (.040-.050" or
Electronics Forum | Sat May 30 01:31:49 EDT 2009 | mika
make 4 square rounded corner apertures on the ground pad and the total reduction of 20 % (80 % solder paste). Then you still be able to solder the terminals around. Don't worry to much of the void's. Just following my tips and you will be fine. The
Industry News | 2018-10-18 08:40:47.0
Stencil aperture considerations for QFN chips
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Parts & Supplies | Pick and Place/Feeders
> SHENZHEN GREEN TECHNOLOGY CO.,LTD JUKI ESL13000000 VACUUM PAD 15 www.greensmt.com JUKI ESL13000100 PHOTO MICRO SENSOR A SHENZHEN GREEN TECHNOLOGY CO.,LTD JUKI ESL13001000 TUBE UNION (KL700) www.greensmt.com JUKI ESL130011A0 CONVEYOR MOTOR (KZ50
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Parts & Supplies | Pick and Place/Feeders
> www.fujintai.com JUKI ESL13000000 VACUUM PAD 15 FUJINTAI TECHNOLOGY CO.,LTD JUKI ESL13000100 PHOTO MICRO SENSOR A www.fujintai.com JUKI ESL13001000 TUBE UNION (KL700) FUJINTAI TECHNOLOGY CO.,LTD JUKI ESL130011A0 CONVEYOR MOTOR (KZ500) www.fujin
Technical Library | 2007-01-31 15:17:04.0
The goal of this project is to evaluate the reliability of lead-free BGA solder joints with a variety of different pad sizes using several different BGA rework methods. These methods included BGAs reworked with both flux only and solder paste attachment techniques and with or without the use of the BEST stay in place StencilQuick™. The daisy chained test boards were placed into a thermal test chamber and cycled between -25ºC to 125ºC over a 30 minute cycle with a 30 minute dwell on each end of the cycle. Each BGA on the board was wired and the continuity assessed during the 1000 cycles the test samples were in the chamber.
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.
This video describes the BEST BGA rework and BGA rework services capabilities. What is described in this movie are the people, processes and tools unique to BEST and how that impacts its customers. The advanced equipment set including multiple refl
Training Courses | | | PCB Rework and Hand Soldering Courses
The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.
Training Courses | | | PCB Rework and Hand Soldering Courses
The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.
Events Calendar | Mon Apr 23 00:00:00 EDT 2018 - Thu Apr 26 00:00:00 EDT 2018 | Shanghai, China
SMTA China East Conference 2018
Career Center | san diego,, California USA | Engineering,Production,Quality Control,Technical Support
SMT Process Engineer, ISO-9001, IPC-600/610/620/7711/7721, J-STD-001, Thermal profiling, Lean manufacturing.
Career Center | NORTHRIDGE, California USA | Engineering
EDUCATION BS Electronics and Communication Engineering Gujarat University MS Electrical Engineering California State University, Northridge ACADAMIC PROJECT Fabrication and Characterization of Silicon Carbide (SiC) MESFE
A New Stencil Rulebook for Wafer Level Solder Ball Placement using High Accuracy Screen Printing A New Stencil Rulebook for Wafer Level Solder Ball Placement using High Accuracy Screen Printing Printer-hosted processes for solder ball placement
Heller Industries Inc. | https://hellerindustries.com/opensor-insufficient-solder/
stencil aperture Misaligned solder print Improper stencil thickness Inadequate stencil aperture size Excessive pad size Via in pad draining solder from interconnection Reflow-related causes of
| https://www.smtfactory.com/I-C-T-SMT-Vacuum-Reflow-Oven-Machine-helps-you-to-solve-the-problem-of-High-Solder-Voids-Rates-id45973467.html
Series Vacuum Reflow Oven SMT Stencil Printing Machine Semi-auto SMT Stencil Printer Full-auto SMT Stencil Printer Pick & Place Machine SAMSUNG Pick
