Technical Library | 2019-07-10 23:36:14.0
Pockets of gas, or voids, trapped in the solder interface between discrete power management devices and circuit assemblies are, unfortunately, excellent insulators, or barriers to thermal conductivity. This resistance to heat flow reduces the electrical efficiency of these devices, reducing battery life and expected functional life time of electronic assemblies. There is also a corresponding increase in current density (as the area for current conduction is reduced) that generates additional heat, further leading to performance degradation.
Technical Library | 2023-01-17 17:19:44.0
A test program was developed to evaluate the effectiveness of vacuum reflow processing on solder joint voiding and subsequent thermal cycling performance. Area array package test vehicles were assembled using conventional reflow processing and a solder paste that generated substantial void content in the solder joints. Half of the population of test vehicles then were re-processed (reflowed) using vacuum reflow. Transmission x-ray inspection showed a significant reduction in solder voiding after vacuum processing. The solder attachment reliability of the conventional and vacuum reflowed test vehicles was characterized and compared using two different accelerated thermal cycling profiles. The thermal cycling results are discussed in terms of the general impact of voiding on solder thermal fatigue reliability, results from the open literature, and the evolving industry standards for solder voiding. Recommendations are made for further work based on other void reduction methods and additional reliability studies.
Industry News | 2013-08-15 20:58:22.0
Heller Industries announced today that they have entered into a joint development agreement with International Business Machines Corporation (NYSE: IBM), to collaborate on the development of fluxless mass reflow furnace equipment and process for high volume manufacturing. The fluxless process utilizes gas phase formic acid to replace standard fluxing agents, and eliminates the need for pre-reflow fluxing and post-reflow flux cleanup steps.
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.
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 | 2023-10-18 17:43:18.0
HELLER's High UPH Vacuum Reflow Oven clinched the coveted "Step-by-Step Excellence Awards" - Innovation Award owing to its industry-leading product strength and outstanding performance.
Technical Library | 2023-09-07 14:38:31.0
A repeat customer specializing in high-technology interconnect, sensor, and antenna solutions, partnered with us to dispense small volumes of solder paste (Indium 10.1 SAC305 T6SG 78%m) onto backplane connectors – gold pads 0.175mm x 0.225mm. We performed a test requiring 0.200mm diameter or smaller dots to demonstrate the dispensing capability required.
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