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Impact Of GAA Transistors At 3/2nm


The chip industry is poised for another change in transistor structure as gate-all-around (GAA) FETs replace finFETs at 3nm and below, creating a new set of challenges for design teams that will need to be fully understood and addressed. GAA FETs are considered an evolutionary step from finFETs, but the impact on design flows and tools is still expected to be significant. GAA FETs will offer... » read more

Do We Have An IC Model Crisis?


Models are critical for IC design. Without them, it's impossible to perform analysis, which in turn limits optimizations. Those optimizations are especially important as semiconductors become more heterogenous, more customized, and as they are integrated into larger systems, creating a need for higher-accuracy models that require massive compute power to develop. But those factors, and other... » read more

Recent Advances in Thermal Metamaterials and Their Future Applications for Electronics Packaging


Abstract: "Thermal metamaterials exhibit thermal properties that do not exist in nature but can be rationally designed to offer unique capabilities of controlling heat transfer. Recent advances have demonstrated successful manipulation of conductive heat transfer and led to novel heat guiding structures such as thermal cloaks, concentrators, etc. These advances imply new opportunities to gui... » read more

Power/Performance Bits: Nov. 9


Integrated transistor cooling Researchers at Ecole Polytechnique Fédérale de Lausanne (EPFL) created a single chip that combines a transistor and microfluidic cooling system for more efficient transistor heat management. The team focused on a co-design approach for the electrical and mechanical aspects of the chip, bringing the electronics and cooling design together and aiming to extract... » read more

Making Chips To Last Their Expected Lifetimes


Chips are supposed to last their lifetime, but that expectation varies greatly depending upon the end market, whether the device is used for safety- or mission-critical applications, and even whether it can be easily replaced or remotely fixed. It also depends on how those chips are used, whether they are an essential part of a complex system, and whether the cost of continual monitoring and... » read more

112G SerDes Reliability


Priyank Shukla, product marketing manager at Synopsys, digs into 112Gbps SerDes, why it’s important to examine the performance of these devices in the context of a system, what is acceptable channel loss, and how density can affect performance, power and noise. » read more

Ins And Outs Of In-Circuit Monitoring


At 7nm and 5nm, in-circuit monitoring is becoming essential. Steve Crosher, CEO of Moortec, talks about the impact of rising complexity, how different use cases and implementations can affect reliability and uptime, and why measuring electrical, voltage and thermal stress can be used to statistically predict failures and improve reliability throughout a chip’s lifetime. » read more

Smaller Nodes, Much Bigger Problems


João Geada, chief technologist at Ansys, sat down with Semiconductor Engineering to talk about device scaling, advanced packaging, increasing complexity and the growing role of AI. What follows are excerpts of that conversation. SE: We've been pushing along Moore's Law for roughly a half-century. What sorts of problems are you seeing now that you didn't see a couple nodes ago? Geada: The... » read more

New Approaches For Dealing With Thermal Problems


New thermal monitoring, simulation and analysis techniques are beginning to coalesce in chips developed at leading-edge nodes and in advanced packages in order to keep those devices running at optimal temperatures. This is particularly important in applications such as AI, automotive, data centers and 5G. Heat can kill a chip, but it also can cause more subtle effects such as premature aging... » read more

HBM Issues In AI Systems


All systems face limitations, and as one limitation is removed, another is revealed that had remained hidden. It is highly likely that this game of Whac-A-Mole will play out in AI systems that employ high-bandwidth memory (HBM). Most systems are limited by memory bandwidth. Compute systems in general have maintained an increase in memory interface performance that barely matches the gains in... » read more

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