Electronics Forum | Mon Aug 25 02:57:43 EDT 2014 | arjunkolavara
We are in the process of qualifying our SMT lines for the High Melting Point Solder with alloy composition of 93.5 Pb 5 Sn 1.5 Ag.If any one has already an experience with this alloy,kindly do give ur inputs on the process of profiling . The reflow d
Electronics Forum | Mon Aug 25 08:15:54 EDT 2014 | jax
With a melting point of roughly 300°C, you would need to have the product see temperatures peaking around 325°C at a minimum. (I would make sure the components and PCB materials can withstand these temperatures) Most convection ovens do not go over 3
Industry News | 2003-08-27 10:58:00.0
Lead free solders and embedded passives headline professional development schedule at the 2003 IPC Annual Meeting
Industry News | 2015-05-18 21:19:33.0
The SMTA Capital Chapter is pleased to announce it will welcome Denis Barbini, Universal Instruments Corporation, on June 9th to instruct a tutorial on Advanced SMT Technologies at ZESTRON Americas located at 11285 Assett Loop, Manassas, VA 20109. The tutorial is scheduled from 9:00 am to 4:30 pm and includes lunch. The following should attend: quality engineers, failure analysis engineers, reliability engineers, procurement specialists, design engineers, process engineers, project managers. Registration is required for this learning event.
Technical Library | 2021-09-08 13:43:56.0
Manganese can be an optimal alloying addition in lead-free SAC (SnAgCu) solder alloys because of its low price and harmless nature. In this research, the mechanical properties of the novel SAC0307 (Sn/Ag0.3/Cu0.7) alloyed with 0.7 wt.% Mn (designated as SAC0307-Mn07) and those of the traditionally used SAC305 (Sn96.5/Ag3/Cu0.5) solder alloys were investigated by analyzing the shear force and Vickers hardness of reflowed solder balls. During the preparation of the reflowed solder balls, different cooling rates were used in the range from 2.7 K/s to 14.7 K/s.
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.
Events Calendar | Mon Feb 11 00:00:00 EST 2019 - Mon Feb 11 00:00:00 EST 2019 | ,
Webinar: Solder Paste Evaluation & Simple Tricks of the Trade
SMTnet Express, Septemeber 1, 2016, Subscribers: 26,288, Companies: 14,937, Users: 41,025 Reliability Study of Low Silver Alloy Solder Pastes Jennifer Nguyen, David Geiger and Murad Kurwa; Flex (Flextronics International) Sn3.0Ag0.5Cu (SAC305
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-glossary-of-terms
. See Nordson EFD printing paste products. Q R Reflow A term used to describe the heating and melting of solder alloy that allows it to flow as liquid again. Reflow Profile A graph of temperature over time experienced by a product during a reflow
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/Vacuum-Void-Reduction-Reflow-1.pdf
Vacuum Reflow Processing On Solder Joint Voiding To be published in the Proceedings of SMTA International, September 17 - 21, 2016, Rosemont, IL
