2D UltraLow Temperatures, High Performance Quantum


A new technical paper titled "Electrically tunable giant Nernst effect in two-dimensional van der Waals heterostructures" was published by researchers at EPFL and National Institute for Materials Science (Japan). Abstract "The Nernst effect, a transverse thermoelectric phenomenon, has attracted significant attention for its potential in energy conversion, thermoelectrics and spintronics. ... » read more

Chip Aging Becoming Key Factor In Data Center Economics


Chip aging is becoming a much bigger concern inside of data centers, where it can impact server uptime, utilization rates, and the amount of energy needed to drive signals and cool entire server racks. Aging in chips is the result of both higher logic utilization and increasing transistor density. This is problematic for data centers, in general, but especially for AI chips where digital log... » read more

Quantum Confinement And Its Effect On The Thermoelectric Performance For Thermal Management


A technical paper titled “Enhanced thermoelectric performance via quantum confinement in a metal oxide semiconductor field effect transistor for thermal management” was published by researchers at Sandia National Laboratories and Kansas State University. Abstract: "The performance of thermoelectric devices is gauged by the dimensionless figure of merit ZT. Improving ZT has proven to be a ... » read more

Leveraging In-Package Wireless Technology To Improve The Thermal Behavior Of 2.5D Chiplet-Based SoP


A technical paper titled “REMOTE: Re-thinking Task Mapping on Wireless 2.5D Systems-on-Package for Hotspot Removal” was published by researchers at Swiss Federal Institute of Technology Lausanne (EPFL) and University of Applied Sciences and Arts of Western Switzerland (HES-SO). Abstract Excerpt "In this work, we propose a new task mapping heuristic that leverages in-package wireless t... » read more

Power Semiconductor Devices: Thermal Management and Packaging


A technical paper titled "Thermal management and packaging of wide and ultra-wide bandgap power devices: a review and perspective" was published by researchers at Virginia Polytechnic Institute and State University, U.S. Naval Research Laboratory, and Univ Lyon, CNRS. "This paper provides a timely review of the thermal management of WBG and UWBG power devices with an emphasis on packaged dev... » read more

Squeezing The Margins


Back in 2016, we looked at the MediaTek Helio X20, the first Tri-Gear mobile SoC. Tri-Gear is a step beyond ARM’s big.LITTLE concept of using two different cores that have unique power and performance characteristics, by adding a third core. The main advantage to this approach is having more core choices to best run workloads at better energy efficiency and performance operating points. At... » read more

3D-IC: Operator Learning Framework For Ultra-Fast 3D Chip Thermal Prediction Under Multiple Chip Design Configurations


A new technical paper titled "DeepOHeat: Operator Learning-based Ultra-fast Thermal Simulation in 3D-IC Design" was published (preprint) by researchers at UCSB and Cadence. Abstract "Thermal issue is a major concern in 3D integrated circuit (IC) design. Thermal optimization of 3D IC often requires massive expensive PDE simulations. Neural network-based thermal prediction models can perform ... » read more

Solid-State Electrochemical Thermal Transistor Without Using Liquid


A new technical paper titled "Solid-State Electrochemical Thermal Transistors" was published by researchers at Hokkaido University, Pusan National University, and the University of Tokyo. Abstract "Thermal transistors that electrically control heat flow have attracted growing attention as thermal management devices and phonon logic circuits. Although several thermal transistors are demons... » read more

Modeling and Thermal Analysis of 3DIC


A new technical paper titled "Heat transfer in a multi-layered semiconductor device with spatially-varying thermal contact resistance between layers" was published by researchers at UT Arlington. "This work presents a theoretical model to determine the steady state temperature distribution in a general M-layer structure with spatial variation in thermal contact resistance between adjacent la... » read more

Hot Trends In Semiconductor Thermal Management


Increasing thermal challenges, as the industry moves into 3D packaging and continues to scale digital logic, are pushing the limits of R&D. The basic physics of having too much heat trapped in too small a space is leading to tangible problems, like consumer products that are too hot to hold. Far worse, however, is the loss of power and reliability, as overheated DRAM has to continually r... » read more

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