Qualification of boards and assemblies is the comparison of the board or assembly to an industry standard. Specifically, we qualify printed circuit boards to IPC-6012 – Qualification and Performance Specifications for Rigid Printed Boards and
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Electronics Forum | Thu Jun 22 12:25:07 EDT 2000 | Boca
Jason, What Chrys said! Don't try to run the bottom cooler, tried it in the mid 80's, don't work and don't want it to work. If one side of a fab is maintained cooler than liquidus and the other side into reflow it would have an easy 40C temp diffe
Electronics Forum | Thu Jun 22 11:01:54 EDT 2000 | Chrys Shea
Jason, Double sided reflow should be no problem. People have been doing it for years. The surface tension of the molten solder will hold the components on the bottom side during your second pass. This is almost always the case, unless you have re
Industry News | 2023-10-16 12:50:01.0
MIRTEC announces the release of their All-New ART Hybrid 3D AOI System at Productronica 2023. The World's leading trade fair for the electronics manufacturing industry will take place Nov. 14-17, 2023, at the Trade Fair Center Messe München, Germany. All are welcome to MIRTEC's Booth #461 in Hall A2 for a detailed demonstration of what will undoubtedly be recognized as the World's Most Technologically Advanced 3D AOI System!
Industry News | 2010-03-27 19:26:29.0
BANNOCKBURN, Ill., USA, - IPC - Association Connecting Electronics Industries® announces the products that will be featured in the Innovative Technology Center (ITC) at IPC APEX EXPO™, April 6–8, 2010, in Las Vegas. Assessed by an IPC Review Board of industry experts, the products were selected based on their representation of a new or emerging technology of significant value and relevance to the electronics manufacturing industry.
CARRY PWB E86177210A0(1).jpg)
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Technical Library | 2023-08-04 15:27:30.0
A designed experiment evaluated the influence of several variables on appearance and strength of Pb-free solder joints. Components, with leads finished with nickel-palladium-gold (NiPdAu), were used from Texas Instruments (TI) and two other integrated circuit suppliers. Pb-free solder paste used was tin-silver-copper (SnAgCu) alloy. Variables were printed wiring board (PWB) pad size/stencil aperture (the pad finish was consistent; electrolysis Ni/immersion Au), reflow atmosphere, reflow temperature, Pd thickness in the NiPdAu finish, and thermal aging. Height of solder wetting to component lead sides was measured for both ceramic plate and PWB soldering. A third response was solder joint strength; a "lead pull" test determined the maximum force needed to pull the component lead from the PWB. This paper presents a statistical analysis of the designed experiment. Reflow atmosphere and pad size/stencil aperture have the greatest contribution to the height of lead side wetting. Reflow temperature, palladium thickness, and preconditioning had very little impact on side-wetting height. For lead pull, variance in the data was relatively small and the factors tested had little impact.
Technical Library | 2024-04-08 15:46:36.0
A designed experiment evaluated the influence of several variables on appearance and strength of Pb-free solder joints. Components, with leads finished with nickel-palladium-gold (NiPdAu), were used from Texas Instruments (TI) and two other integrated circuit suppliers. Pb-free solder paste used was tin-silver-copper (SnAgCu) alloy. Variables were printed wiring board (PWB) pad size/stencil aperture (the pad finish was consistent; electrolysis Ni/immersion Au), reflow atmosphere, reflow temperature, Pd thickness in the NiPdAu finish, and thermal aging. Height of solder wetting to component lead sides was measured for both ceramic plate and PWB soldering. A third response was solder joint strength; a "lead pull" test determined the maximum force needed to pull the component lead from the PWB. This paper presents a statistical analysis of the designed experiment. Reflow atmosphere and pad size/stencil aperture have the greatest contribution to the height of lead side wetting. Reflow temperature, palladium thickness, and preconditioning had very little impact on side-wetting height. For lead pull, variance in the data was relatively small and the factors tested had little impact.
ACI Technologies Inc. (ACI) is a scientific research corporation dedicated to the advancement of electronics manufacturing processes and materials for The Department of Defense and industry. This video provides an overview of our commercial service
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Events Calendar | Tue Apr 13 00:00:00 EDT 2021 - Tue Apr 13 00:00:00 EDT 2021 | ,
Boston Chapter Webinar: Cleaning Chemistry For PWB and Rework - Part 2, session 1
Events Calendar | Tue Apr 13 00:00:00 EDT 2021 - Tue Apr 13 00:00:00 EDT 2021 | ,
Boston Chapter Webinar: Cleaning Chemistry For PWB and Rework - Part 2, session 2
Career Center | Derabassi, India | Maintenance,Management,Production,Quality Control,Sales/Marketing
PCB Assembly (SMT & PTH)--Process/Planning – Production – Maintenance/Troubleshooting – QA/QC
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/00600-248.pdf
parts off during double-sided reflow. Additionally, after eutectic solder is first melted, the alloying that occurs at the sol- der joint during reflow effectively increases the remelting point
