Technical Library | 2023-01-17 17:27:13.0
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. Specifically, the effect of the reflow peak temperature and time above solder liquidus temperature are studied. Nine reflow profiles for SAC 305 and nine reflow profiles for SnPb have been developed with three levels of peak temperature (230 o C, 240 o C, and 250 o C for SAC 305; and 195 o C, 205 o C, and 215 o C for SnPb) and three levels of time above solder liquidus temperature (30 sec., 60 sec., and 90 sec.). The shear force data of four different sizes of chip resistors (1206, 0805, 0603, and 0402) are compared across the different profiles. The shear force of the resistors is measured at time 0 (right after assembly). The fracture surfaces have been studied using a scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS)
Industry News | 2015-05-18 10:27:49.0
Heller Industries has been awarded a 2015 SMT China Vision Award in the category of Reflow Soldering for its 1936 Mark 5 Reflow Oven. The award was presented during April 21, 2015 ceremony at the Shanghai World Expo Exhibition & Convention Center during NEPCON China 2015.
Industry News | 2013-05-21 22:12:09.0
Based on its recent analysis of the surface mount technology (SMT) reflow soldering equipment market, Frost & Sullivan recognizes Heller Industries, Inc. with the 2013 Global Frost & Sullivan Award for Market Share Leadership.
Eliminate Body Stress with Versatile CF-8 GPD's CF-8 eliminates component body stress. Versatility is the key word for the CF-8. Simple tooling changes make short or long run production jobs quick and easy. Capabilities Meets exacting military s
Eliminate Body Stress with Versatile CF-8 GPD's CF-8 eliminates component body stress. Versatility is the key word for the CF-8. Simple tooling changes make short or long run production jobs quick and easy. Capabilities Meets exacting military s
Industry News | 2016-11-21 16:42:03.0
Altus Group is now offering its customers in the UK and Ireland GPD Global's automated dispense systems which in response to customer demand, now have an integrated Pick & Place capability.
Industry News | 2003-02-17 08:40:25.0
To Meet Government Environmental Standards and Individual Company Policies, While Satisfying Production Requirements
Industry Directory | Manufacturer
A US manufacturer of quality hand tools for those engaged in the repair, rework, R & D, testing, and assembly of electronic components and printed circuit boards from Through Hole to 2Mil Pitch Surface Mount.
Industry News | 2003-06-12 08:24:37.0
An adaptive tool prevents small and/or light components "lifting" or "floating" on printed circuit board assemblies during the wave solder process.
Industry News | 2003-03-21 08:12:24.0
Tecan reckons it is consistently producing what may be regarded as the most efficient stencils in the world today.
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