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 | 2009-02-02 18:48:47.0
Henkel today announced the appointment of Mr. Luc Godefroid as the company's Global Sales Director for its Semiconductor Group. A key member of Henkel's electronics sales team since 2001, Godefroid's new role sees him building on his previous success and directing the global sales efforts of Henkel's worldwide team and expanded product portfolio.
Industry News | 2003-02-26 09:07:20.0
Investments by electronics manufacturing companies of millions of dollars in software products to manage and automate supply and demand quantification have not prevented margins of error from 50% to 100%
Training Courses | | | PCB Rework and Hand Soldering Courses
The PCB rework and hand soldering courses courses cover techniques of rework and repair of PCBs, BGAs and other electronics assemblies, and teach fundamentals of soldering of electronics assemblies.
Industry News | 2003-06-23 09:04:32.0
China Replaces Japan and Mexico as Largest Supplier of Electronics to the United States
Industry News | 2003-06-23 08:49:39.0
Three Organizations from the US, Europe and Japan to
Industry News | 2003-06-10 08:16:44.0
The following text describes the application of NWA Quality Analyst to quality control in the assembly of electronic components.
Industry News | 2015-08-19 15:13:19.0
The cost of doing business can be cumbersome and financially destabilizing at times. There’s a way to save money on getting the necessary SMT assembly equipment needed or to offload equipment that has been replaced by upgraded machinery. For businesses looking for the ability to purchase SMT assembly equipment, Baja Bid just completed a successful multiple site exchange auction, and is gearing up to participate in another.
Industry News | 2013-03-13 20:01:27.0
IPC — Association Connecting Electronics Industries® announces the release of a new study, IPC Executive Compensation Study for the North American Electronics Industry 2011-2012.
Industry News | 2012-01-30 14:42:25.0
IPC’s recently published biennial wage and salary survey for the EMS industry shows a cautious upturn in salary increases in 2011, compared to 2009. Reporting on data from 151 U.S. and Canadian EMS facilities, IPC Wage Rate & Salary Study for the North American EMS Industry 2010-2011 is a valuable tool for EMS companies to gauge their position in competing for the best talent in the industry.
