Globally Asynchronous, Locally Synchronous Clocks


Typical IC clocking schemes are under stress in complex chip/chiplet designs, where multiple compute elements may not be operating at the same frequency consistently. Some cores may be powered down to save energy, or they may age at different rates, which in turn reduces performance. Lee Vick, vice president of strategic marketing at Movellus, explains why locally asynchronous clocking schemes ... » read more

Revolutionizing High-Performance Silicon With Next-Gen Chiplets


By Shivi Arora and Sue Hung Fung As 5G wireless communications systems continue to be deployed, enterprises are busy planning for 6G—the next generation of wireless communications set to transform our lives. Poised to merge communication and computing, 6G promises to create a hyperconnected world that blends digital and physical experiences with ultra-fast speeds and low latency as a start... » read more

Early Architecture Performance and Power Analysis of Multi-Die Designs


Despite the clear advantages of multi-die designs, there are numerous new challenges that stand in the way of multi-die design realization. This white paper focuses on those challenges that can be addressed by early architecture exploration of multi-die designs, including: -System pathfinding -Memory utilization and coherency -Power/thermal management Find out how to overcome such chall... » read more

Advanced Packaging Driving New Collaboration Across Supply Chain


The semiconductor industry is undergoing a profound shift in packaging technologies to ones that rely on close collaboration among multiple stakeholders to solve intricate, multi-faceted, and extraordinarily complex problems. At the heart of this change is the convergence of heterogeneous integration, chiplets, and 3D stacking. Heterogeneous approaches allow companies to combine different te... » read more

New Approaches To Power Decoupling


Decoupling capacitors have long been an important aspect of maintaining a clean power source for integrated circuits, but with noise caused by rising clock frequencies, multiple power domains, and various types of advanced packaging, new approaches are needed. Power is a much more important factor than it used to be, especially in the era of AI. “Doing an AI search consumes 10X the power t... » read more

Current and Emerging Heterogeneous Integration Technologies For High-Performance Systems (Georgia Tech)


A technical paper titled "Heterogeneous Integration Technologies for Artificial Intelligence Applications" was published by Georgia Tech. Abstract "The rapid advancement of artificial intelligence (AI) has been enabled by semiconductor-based electronics. However, the conventional methods of transistor scaling are not enough to meet the exponential demand for computing power driven by AI. ... » read more

Open-Source, Chiplet-Compatible RISC-V Controller


A new technical paper titled "ControlPULPlet: A Flexible Real-time Multi-core RISC-V Controller for 2.5D Systems-in-package" was published by researchers at ETH Zurich and University of Bologna. Abstract "The increasing complexity of real-time control algorithms and the trend toward 2.5D technology necessitate the development of scalable controllers for managing the complex, integrated oper... » read more

Unbundling Analog From Digital Where It Makes Sense


Semiconductor Engineering sat down to discuss what's changing in analog design with the shift toward heterogeneous integration and more safety- and mission-critical applications with Mo Faisal, president and CEO of Movellus; Hany Elhak, executive director of product management at Synopsys; Cedric Pujol, product manager at Keysight; and Pradeep Thiagarajan, principal product manager for custom I... » read more

Thermal Modeling For 2.5D And 3D Integrated Chiplets


A new technical paper titled "MFIT: Multi-Fidelity Thermal Modeling for 2.5D and 3D Multi-Chiplet Architectures" was published by researchers at University of Wisconsin–Madison, Washington State University, and University of Ulsan. Abstract: "Rapidly evolving artificial intelligence and machine learning applications require ever-increasing computational capabilities, while monolithic 2D d... » read more

Big Changes In Optical Inspection


Optical inspection always has been the workhorse technology for finding defects in chips. It's fast, cost-efficient, and generally reliable enough for most chips. But as logic scales into the angstrom range, and as systems become collections of chiplets, optical inspection needs to be combined with other types of inspection such as X-ray and acoustic. Kyle Vander Schaaf, application engineer at... » read more

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