Technical Library | 2013-10-24 15:47:53.0
Reflow soldering in a nitrogen atmosphere is a common process consideration in surface mount technology assembly. This is because the use of nitrogen in reflow equipment may benefit the process as well as the quality of the end product, where it can increase the reliability of the solder joint. (...) The present study investigated thoroughly the effect of different reflow soldering atmosphere, which is air and nitrogen on IMC formation and growth
Industry News | 2008-02-15 15:45:43.0
OSAKA, JAPAN � February 13, 2008 � Nihon Superior USA, a subsidiary of Nihon Superior Co. Ltd., a supplier of advanced soldering and brazing materials to the global market, announces that it showcased its SN100C products with FCT Assembly, one of its US SN100C Global Partners, at the IPC International Conference on Flexible Circuits, that took place February 13, 2008 in Phoenix, Ariz.
Technical Library | 2015-11-19 18:15:07.0
The move to lead free (Pb-free) electronics by the commercial industry has resulted in an increasing number of ball grid array components (BGAs) which are only available with Pb-free solder balls. The reliability of these devices is not well established when assembled using a standard tin-lead (SnPb) solder paste and reflow profile, known as a backward compatible process. Previous studies in processing mixed alloy solder joints have demonstrated the importance of using a reflow temperature high enough to achieve complete mixing of the SnPb solder paste with the Pb-free solder ball. Research has indicated that complete mixing can occur below the melting point of the Pb-free alloy and is dependent on a number of factors including solder ball composition, solder ball to solder paste ratio, and peak reflow times and temperatures. Increasing the lead content in the system enables full mixing of the solder joint with a reduced peak reflow temperature, however, previous research is conflicting regarding the effect that lead percentage has on solder joint reliability in this mixed alloy solder joint.
Industry News | 2016-09-07 19:04:13.0
Kurtz Ersa North America is pleased to announce that Viktoria Rawinski, Assistant to the CEO of the Kurtz Ersa Group and head of the Kurtz Ersa Company Museum and the Corporate History Department, will present the paper entitled, “Void Reduction in Reflow Soldering Processes by Sweep Stimulation of PCB Substrate – Process Integration in Industrial Production,” during SMTA International. The presentation is scheduled to take place during Session MFX4, entitled, “Reflow and Soldering Technology: Void Reduction” on Wednesday, September 28, 2016 from 10:30 a.m. to 12 p.m. in Room 49.
Industry News | 2023-09-25 17:55:00.0
Indium Corporation R&D Manager, Alloy Group and Principal Research Metallurgist Dr. HongWen Zhang will present at the SMTA Empire Expo & Tech Forum on September 26 in Syracuse, NY. Also at the conference, Regional Sales Manager Emily Belfield will host a panel discussion, Generational Differences in Today's Workplace.
Industry News | 2022-05-05 17:38:12.0
The Assembly Division of MacDermid Alpha Electronics Solutions, a global supplier of integrated solutions from our Circuitry, Assembly and Semiconductor divisions that provides unmatched capabilities in electronics design and manufacturing will discuss solutions for voiding at the SMTA Juarez Expo & Tech Forum on Thursday, May 19.
Industry News | 2019-01-23 17:29:28.0
Indium Corporation will give IPC APEX Expo conference attendees numerous opportunities to witness the company’s proven products live on the show floor, as well as an opportunity to meet with their voiding experts, from Jan. 29-31 in San Diego, California, USA.
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.
Industry News | 2013-03-22 11:10:14.0
CyberOptics Corporation (Nasdaq: CYBE) will present its newest range of SPI and AOI inspection solutions in its representative HumanTek’s booth E-125 in Hall C at SMT/PCB & NEPCON Korea, scheduled to take place April 3-5, 2013 at the Coex Convention & Exhibition Center in Seoul, South Korea.
COT specializes in high quality SMT nozzles and consumables for pick and place machines. We provide special engineering design service of custom nozzles for those unique and odd components.
2481 Hilton Drive
Gainesville, GA USA
Phone: (770) 538-0411
