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ITW EAE Wins Best Paper of TC1 Technology Conference Presented at Nepcon China 2023
July 24, 2023 | ITW EAEEstimated reading time: Less than a minute
ITW EAE was selected as the winner of the best paper of TC1 Technology Conference by SMTA China East. The paper, “Selective Soldering with High-Performance Lead-Free Solders” was presented at Nepcon China 2023 by Khoh Kar Heong, ITW EAE Sales Engineering Manager.
The paper investigates three commercially available high-performance lead-free solders designed for circuit assemblies that are located under the hood of automobiles or other harsh environments. These solders were compared to the standard lead-free alloy, Sn3.0Ag0.5Cu, for four different through-hole assemblies.
The paper concludes that the major parameters in selective soldering that contribute to good hole filling are all related to wetting. Once the solder temperature and drag speed are optimized, all other factors: flux type, nozzle type, and solder alloy are less critical for hole filling. Solder composition is an issue in selective soldering. This experiment concluded that the Ni and Cu content can be a critical factor for formation of (Cu, Ni)6Sn5 and or Cu6Sn5 needles.
Suggested Items
Book Excerpt: The Printed Circuit Assembler’s Guide to... Low-Temperature Soldering, Vol. 2, Chapter 5
12/23/2024 | I-Connect007 Editorial TeamChapter 5 introduces the advantages of using low-temperature soldering for through-hole components, including cost efficiency, reliability improvement, and reduced warpage. Also covered: the evaluation of different fluxes and the performance of HRL3 in wave soldering and selective soldering processes.
Overview of Soldering Systems With Vacuum
12/18/2024 | Dr. Paul Wild, Rehm Thermal Systems GmbHWhen soldering electronic assemblies, the focus of the vacuum application is on the removal of volatile substances from the solder joints and the associated reduction of pore formation. Particularly in the thermal management of power electronics components, pores can cause so-called hotspots with higher temperatures due to their poor heat conduction. These hotspots can lead to overheating of the components on the one hand and to thermally induced destruction of the solder structure on the other.
I-Connect007 Editor’s Choice: Five Must-Reads for the Week
12/13/2024 | Andy Shaughnessy, I-Connect007This week, Peter Tranitz discusses the upcoming Pan-European Electronics Design Conference, set for Jan. 29-30 in Vienna, Austria. Pete Starkey brings us a review of the most recent EIPC Technical Snapshot webinar, which featured a global PCB maker update by Dr. Hayao Nakahara. Don't miss our interview with Manfred Huschka, who explains how companies can begin their own China Plus One plan. Stan Farnsworth breaks down photonic soldering and discusses its use in soldering materials that are not typically compatible. I also enjoyed Dan Beaulieu’s discussion on the value of consistency, and why just showing up for work is half the battle, especially in an inconsistent, evolving industry like ours.
Advancing Photonic Soldering
12/11/2024 | Nolan Johnson, SMT007 MagazineStan Farnsworth, director of customer satisfaction at PulseForge, discusses the advancements in photonic soldering that highlight its energy efficiency and versatility. Over the past two years, the company has refined its applications for flexible substrates and energy reduction, finding that photonic soldering allows the processing of materials that typically aren’t thermally compatible and offers significant energy savings compared to traditional methods.
Indium Introduces New ROL0 and Halogen-free Flux-cored Wire
12/11/2024 | Indium CorporationIndium Corporation announced the global availability of CW-807RS, a new high-reliability, halide- and halogen-free flux-cored wire that improves wetting speeds and cycle times for electronics assembly and robot soldering applications.