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.
Industry News | 2024-02-26 16:22:08.0
HELLER, a leading provider of reflow soldering equipment, concluded its 2024 Sales Kickoff Meeting in Suwon, South Korea on a high note. The meeting brought together sales representatives from all branches and subsidiaries to discuss the company's unified goals and objectives for the year ahead, and to equip them with the tools and knowledge necessary to achieve success.
Industry News | 2016-08-25 17:56:34.0
GPD Global's advanced Precision Auger Pump retrofits into your dispensing system to provide excellent dispense control and repeatability. Precision Auger Pump Integration provides your process development with a broad range of functionality.
http://www.gpd-global.com No drip no drool across a wide range of fluid viscosities (low-to-mid and low-to-high). No manual adjustment to compensate for pump variability. Truly Volumetric PCD Pumps for total control of dispensing fluids. Ability to
Industry News | 2018-10-08 20:18:03.0
GPD Global will exhibit at the upcoming SMTA International 2018. At booth# 517, see our automated Conformal Coating Machine with excellent repeatability for under $40,000.
http://www.gpd-global.com Tilt-and-Rotate configuration is available. Full featured programming makes conformal coating processes quick and easy. 3-axis Conformal Coating System for printed circuit boards that provides a reliable robotic platform f
Industry News | 2018-09-06 12:12:07.0
GPD Global offers the ideal tabletop robots (Catalina Series) for precision dispensing.
Industry News | 2018-02-12 12:28:00.0
GPD Global introduces its NEW full-featured benchtop dispensing robot system: Catalina. A benchtop system does not mean "no features". This compact and efficient semi-auto dispense robot provides you with numerous standard features: automatic vision, laser surface sensing, and automatic nozzle alignment and calibration.
Industry News | 2016-05-10 14:16:16.0
GPD Global offers individual pumps for integration into your existing platform – the Jetting NCM5000 Pump is one of them. The Jetting NCM5000 Pump simplifies jetting to its basic elements: hammer, pin, and nozzle. Only the pin and nozzle are wetted parts. This means easy set-up, cleaning, and upkeep.
