Technical Library | 2023-01-17 17:12:33.0
Reflowed indium metal has for decades been the standard for solder thermal interface materials (solder TIMs or sTIMs) in most high-performance computing (HPC) TIM1 applications. The IEEE Heterogeneous Integration Thermal roadmap states that new thermal interface materials solutions must provide a path to the successful application of increased total-package die areas up to 100cm2. While GPU architectures are relatively isothermal during usage, CPU hotspots in complex heterogeneously-integrated modules will need to be able to handle heat flux hotspots up to 1000W/cm2 within the next two years. Indium and its alloys are used as reflowed solder thermal interface materials in both CPU and GPU "die to lid/heat spreader" (TIM1) applications. Their high bulk thermal conductivity and proven long-term reliability suit them well for extreme thermomechanical stresses. Voiding is the most important failure mode and has been studied by x-ray. The effects of surface pretreatment, pressure during reflow, solder flux type/fluxless processing, and preform design parameters, such as alloy type, are also examined. The paper includes data on both vacuum and pressure (autoclave) reflow of sTIMs, which is becoming necessary to meet upcoming requirements for ultralow voiding in some instances.
Technical Library | 2023-01-17 17:58:36.0
Heterogeneous integration has become an important performance enabler as high-performance computing (HPC) demands continue to rise. The focus to enable heterogeneous integration scaling is to push interconnect density limit with increased bandwidth and improved power efficiency. Many different advanced packaging architectures have been deployed to increase I/O wire / area density for higher data bandwidth requirements, and to enable more effective die disaggregation. Embedded Multi-die Interconnect Bridge (EMIB) technology is an advanced, cost-effective approach to in-package high density interconnect of heterogeneous chips, providing high density I/O, and controlled electrical interconnect paths between multiple dice in a package. In emerging architectures, it is required to scale down the EMIB die bump pitch in order to further increase the die-to-die (D2D) communication bandwidth. Aa a result, bump pitch scaling poses significant challenges in the plated solder bump reflow process, e.g., bump height / coplanarity control, solder wicking control, and bump void control. It's crucial to ensure a high-quality solder bump reflow process to meet the final product reliability requirements. In this paper, a combined formic acid based fluxless and vacuum assisted reflow process is developed for fine pitch plated solder bumping application. A high-volume production (HVM) ready tool has been developed for this process.
1809 MK5 - Heller Advanced In-Line Vacuum Reflow Oven Nitrogen System with Balanced Flow Technology 9 Top And Bottom Heated Zones - highest zone count per linear foot in the industry! 100" Heated Length - for super throughput! 2 Internal C
Industry News | 2012-05-11 20:35:45.0
Heller Industries has been awarded a 2012 SMT VISION Award in the category of Soldering Reflow for its 1936 Mark 5 Reflow Oven. The award was presented on April 25, 2012 at the Nepcon China Exhibition.
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 | 2017-09-16 02:29:39.0
Heller Industries has been awarded the 2017 Global Frost & Sullivan Company of the Year Award for its surface mount technology (SMT) soldering equipment that enables Industry 4.0. - the automation and data exchange in manufacturing technologies.
Industry News | 2013-01-04 16:00:38.0
04 Jan 2013 Heller Industries will showcase the Mark5 Series - SMT Reflow Soldering Ovens February 19-21 in San Diego, CA USA at the IPC APEX EXPO.
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.
Industry News | 2016-06-22 15:33:28.0
Based on its recent analysis of the surface mount technology (SMT) reflow soldering equipment market, Frost & Sullivan recognizes Heller Industries, Inc. with the 2016 Global Frost & Sullivan Award for Growth Excellence Leadership. Heller Industries has made remarkable improvements to its product and technology portfolios over the last 10 years to emerge a top participant in the SMT reflow soldering equipment market.
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.
