Industry News | 2008-03-15 15:22:12.0
OSAKA, JAPAN � March 2008 � Nihon Superior USA, a subsidiary of Nihon Superior Co. Ltd., an advanced soldering supplier to the worldwide market, announces that it will showcase a new, expanded range of SN100C products in booth 249 at the upcoming APEX exhibition and conference, scheduled to take place April 1-3, 2008 in Las Vegas.
Industry News | 2008-10-07 20:52:28.0
OSAKA, JAPAN � October 2008 � Nihon Superior USA, a subsidiary of Nihon Superior Co. Ltd., an advanced soldering supplier to the worldwide market, announces that it will feature a newly expanded range of SN100C products, which includes new halogen-free solder paste, in booth 402 at the upcoming Mexitr�nica exhibition, scheduled to take place October 21-23, 2008 at the Expo Guadalajara, Hotel Hilton, in Guadalajara, Jalisco, M�xico.
Technical Library | 2017-05-25 17:07:39.0
Purpose of this research is to identify the factors that directly influence the effectiveness of the fluxing process in selective soldering machines, using the design of experiment methodology with associated factors and levels used in the experiment. Final findings gives directions for set up of the optimal fluxing parameters that will enable appropriate flux appliance and to gain reduction of soldering quality issues which foundations are from this process.
Industry News | 2020-11-11 22:16:21.0
Introduce our Bell's high and low temperature test chambers, constant temperature and humidity test chambers, both of which are also environmental chambers for battery safety.
Technical Library | 2007-03-08 19:31:10.0
Reflow profile has significant impact on solder joint performance because it influences wetting and microstructure of the solder joint. The degree of wetting, the microstructure (in particular the intermetallic layer), and the inherent strength of the solder all factor into the reliability of the solder joint. This paper presents experimental results on the effect of reflow profile on both 63%Sn 37%Pb (SnPb) and 96.5%Sn 3.0%Ag 0.5%Cu (SAC 305) solder joint shear force.
Technical Library | 2023-03-16 18:51:43.0
Conductive anodic filament (CAF) formation was first reported in 1976.1 This electrochemical failure mode of electronic substrates involves the growth of a copper containing filament subsurface along the epoxy-glass interface, from anode to cathode. Despite the projected lifetime reduction due to CAF, field failures were not identified in the 1980s. Recently, however, field failures of critical equipment have been reported.2 A thorough understanding of the nature of CAF is needed in order to prevent this catastrophic failure from affecting electronic assemblies in the future. Such an understanding requires a comprehensive evaluation of the factors that enhance CAF formation. These factors can be grouped into two types: (1) internal variables and (2) external influences. Internal variables include the composition of the circuit board material, and the conductor metallization and configuration (i.e. via to via, via to surface conductor or surface conductors to surface conductors). External influences can be due to (1) production and (2) storage and use. During production, the flux or hot air solder leveling (HASL) fluid choice, number and severity of temperature cycles, and the method of cleaning may influence CAF resistance. During storage and use, the principal concern is moisture uptake resulting from the ambient humidity. This paper will report on the relationship between these various factors and the formation of CAF. Specifically, we will explore the influences of printed wiring board (PWB) substrate choice as well as the influence of the soldering flux and HASL fluid choices. Due to the ever-increasing circuit density of electronic assemblies, CAF field failures are expected to increase unless careful attention is focused on material and processing choices.
Industry News | 2023-05-30 03:58:24.0
In the ever-evolving world of electronics manufacturing, choosing the right method for printed circuit board (PCB) assembly is crucial. Two popular methods that have gained prominence over the years are surface mount technology (SMT) and through-hole technology. Each method has its own strengths and considerations, and understanding their differences is essential for making an informed decision. In this article, we will explore the advantages, factors to consider, application considerations, and industry trends related to SMT and through-hole technologies, helping you choose the right method for your specific requirements.
Electronics Forum | Tue Aug 31 21:45:49 EDT 2004 | KEN
I have experienced this directly in SMT and wave solder. Fillet lift (can) be a direct indicator to lead enrichment (but its not the exclusive symptom). Lead enrichment in smt joints reduces the interfacial strength shortening the time to creep f
Electronics Forum | Thu Dec 24 08:44:25 EST 1998 | Earl Moon
| | | | Folk's, | | | | I'm in need of some help / direction. I'm working on my thesis for a masters based on looking at the effect's of the solder resist promoting / reducing the amount of solder ball's during wave. I'm looking at thing's like colou
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