Industry Directory | Association / Non-Profit / Events Organizer / Training Provider
The SMTA membership is a network of professionals who build skills, share practical experience and develop solutions in electronic assembly technologies and related business operations.
Industry Directory | Consultant / Service Provider
CAD Design Software products run in the AutoCAD environment.
We are well versed in the following thermal application materials: Sil-Pad thermally conductive insulators Gap-Pad thermally conductive gap filling material Q-Pad thermal grease replacement film Bond-Ply thermally conductive adh
New Equipment | Solder Paste Stencils
Through the increase of mixed technologies, stepped stencils have gained importance to the electronic assembly manufacturer. If the solder paste quantity can no longer be adequately regulated by adjusting Step/Relief Stencil Picture the pad sizes, st
Electronics Forum | Wed Jul 18 17:09:45 EDT 2018 | slthomas
Update - next run started out horribly so went to another stencil design. Reduced thermal pad coverage by about 40% with 4 panes, with cutouts to avoid the vias. Worked like a charm for 10 boards (90 parts). I think we're finally on to something.
Electronics Forum | Tue Apr 10 08:37:36 EDT 2018 | davef
Hi Steve ... I found nothing in the manufacturers "paper" to help. Comments are: * I agree. No blobs. Solder on the thermal pad should me minimized. Too much solder will float the component. Old timers used to talk about 50-80% coverage. * If you'
Used SMT Equipment | Screen Printers
DEK 03iX Specs: • Process alignment capability 2 Cpk @ ± 25µm 6-Sigma • Machine alignment capability 2 Cpk @ ± 12.5µm 6-Sigma • 12 second cycle time • High Throughput Conveyor (option) , enables core cycle time reduction to just 11 seconds • DE
Used SMT Equipment | Board Cleaners
Speedline Technologies AquaJet Stencil Batch Cleaner and Resys ClosedLoop System For Sale The wash needs a control board. (Part Description: BL1700 CNTRL 16IN 16OUT) The Part Number to Purchase this board is 20-101-0214. Estimated cost is $349. We h
Industry News | 2021-02-15 14:41:46.0
– The long-awaited release of IPC-7093A, Design and Assembly Process Implementation for Bottom Termination Components (BTCs)is here. Revision A is a complete overhaul of IPC-7093 which provides design and assembly guidance for implementing BTCs and focuses on critical design, materials, assembly, inspection, repair, quality, and reliability issues.
Industry News | 2018-08-16 19:58:50.0
The SMTA Capital Chapter is holding its upcoming Capital Expo and Tech Forum at Johns Hopkins University / Applied Physics Lab, Kossiakoff Center, 11100 Johns Hopkins Road, Laurel, MD 20723, on Thursday, August 23rd.
Parts & Supplies | Chipshooters / Chip Mounters
> JUKI ESL13000000 VACUUM PAD 15 JUKI ESL13000100 PHOTO MICRO SENSOR A JUKI ESL13001000 TUBE union (KL700) JUKI ESL130011A0 CONVEYOR MOTOR (KZ500) JUKI ESL13002000 CLAMP LEVER JUKI ESL13003000 T TYPE NUT JUKI ESL130031A0 OPERATION PANEL (KL700) JUKI
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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
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 | 2019-08-07 22:56:45.0
The requirement to reconsider traditional soldering methods is becoming more relevant as the demand for bottom terminated components (QFN/BTC) increases. Thermal pads under said components are designed to enhance the thermal and electrical performance of the component and ultimately allow the component to run more efficiently. Additionally, low voiding is important in decreasing the current path of the circuit to maximize high speed and RF performances. The demand to develop smaller, more reliable, packages has seen voiding requirements decrease below 15 percent and in some instances, below 10 percent.Earlier work has demonstrated the use of micro-fluxed solder preforms as a mechanism to reduce voiding. The current work builds upon these results to focus on developing an engineered approach to void reduction in leadless components (QFN) through increasing understanding of how processing parameters and a use of custom designed micro-fluxed preforms interact. Leveraging the use of a micro-fluxed solder preform in conjunction with low voiding solder paste, stencil design, and application knowhow are critical factors in determining voiding in QFN packages. The study presented seeks to understand the vectors that can contribute to voiding such as PCB pad finish, reflow profile, reflow atmosphere, via configuration, and ultimately solder design.A collaboration between three companies consisting of solder materials supplier, a power semiconductor supplier, and an electronic assembly manufacturer worked together for an in-depth study into the effectiveness of solder preforms at reducing voiding under some of the most prevalent bottom terminated components packages. The effects of factors such as thermal pad size, finish on PCB, preform types, stencil design, reflow profile and atmosphere, have been evaluated using lead-free SAC305 low voiding solder paste and micro-fluxed preforms. Design and manufacturing rules developed from this work will be discussed.
The PCB Footprint Expert is a powerful CAD library development tool powered by our own proprietary CAD LEAP Technology (Libraries Enhanced with Automated Preferences). It is packed with very powerful advanced library management features that cuts foo
Dennis Odonnell , Vice President of Precision PCB Services, Inc., Oroville CA Explains How to Evaluate a BGA Rework Station ! #BGA Rework Stations http://www.pcb-repair.com/bga-rework-station/
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 | Wed May 31 00:00:00 EDT 2023 - Wed May 31 00:00:00 EDT 2023 | Holtsville, New York USA
Long Island Chapter Meeting: Fine Feature Paste Printing, Stencil Design and Solder Technology
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 | Sherman, Texas USA | Engineering,Production,Research and Development,Technical Support
SMT Packaging Engineer: Location: Texas - Sherman , TX Group: HVAL Degree Requirements: BS ME/ChemE/Materials The person in this position will have the ability to make very significant financial contributions to TI because this is a very critic
Career Center | Lincoln, Nebraska USA | Engineering
Brief Description of Job Duties: Provide new program engineering support with emphasis on technical SMT process development. Key activities would include recommendations and implementation of components, SMT pad design, solder methods, testing and r
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
SMTnet Express, September 27, 2018, Subscribers: 31,354, Companies: 11,055, Users: 25,237 Assessing the Effectiveness of I/O Stencil Aperture Modifications on BTC Void Reduction Carlos Tafoya, Gustavo Ramirez, Timothy O'Neill; AIM Solder Bottom
ORION Industries | http://orionindustries.com/pdfs/thermal.pdf
Thermal Conductive Insulators THERMAL TRANSFER MATERIALS Thermally Conductive Insulators and Gap Filling Media ORION professionals are dedicated to the design and production of thermal transfer products that perform
Imagineering, Inc. | https://www.pcbnet.com/blog/the-importance-of-thermal-management-in-pcb-manufacturing/
. Another PCB core design includes an insulated metal core. This is where the core is insulated with a thin coating of glass or resin. The design of the insulation mounting will work to keep thermal energy traveling to the atmosphere through the core rather than dissipating back into electrical components on the PCB
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