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

What Comes After HBM For Chiplets


Experts At The Table: Semiconductor Engineering sat down to discuss what will trigger the creation of a commercial chiplet marketplace, and what those chiplet-based designs will look like, with Elad Alon, CEO of Blue Cheetah; Mark Kuemerle, vice president of technology at Marvell; Kevin Yee, senior director of IP and ecosystem marketing at Samsung; Sailesh Kumar, CEO of Baya Systems; and Tanuja... » read more

Higher Density, More Data Create New Bottlenecks In AI Chips


Data movement is becoming a bigger problem at advanced nodes and in advanced packaging due to denser circuitry, more physical effects that can affect the integrity of signals or the devices themselves, and a significant increase in data from AI and machine learning. Just shrinking features in a design is no longer sufficient, given the scaling mismatch between SRAM-based L1 cache and digital... » read more

Striking A Balance On Efficiency, Performance, And Cost


Experts at the Table: Semiconductor Engineering sat down to discuss power-related issues such as voltage droop, application-specific processing elements, the impact of physical effects in advanced packaging, and the benefits of backside power delivery, with Hans Yeager, senior principal engineer, architecture, at Tenstorrent; Joe Davis, senior director for Calibre interfaces and EM/IR product m... » read more

New AI Processors Architectures Balance Speed With Efficiency


Leading AI systems designs are migrating away from building the fastest AI processor possible, adopting a more balanced approach that involves highly specialized, heterogeneous compute elements, faster data movement, and significantly lower power. Part of this shift revolves around the adoption of chiplets in 2.5D/3.5D packages, which enable greater customization for different workloads and ... » read more

A New Generation Of 7400 Socket


When I was 18, and just been accepted at Brunel University in West London to start my undergraduate degree in electrical and electronic engineering, I sent off a letter to Texas Instruments telling them about the journey ahead of me and asked if they could they send me a copy of their TTL Data Book. A few weeks later a package arrived and there it was. This incredible brown/orange book, thicker... » read more

3.5D: The Great Compromise


The semiconductor industry is converging on 3.5D as the next best option in advanced packaging, a hybrid approach that includes stacking logic chiplets and bonding them separately to a substrate shared by other components. This assembly model satisfies the need for big increases in performance while sidestepping some of the thorniest issues in heterogeneous integration. It establishes a midd... » read more

Where Power Savings Really Count


Experts at the Table: Semiconductor Engineering sat down to discuss why and where improvements in architectures and data movement will have the biggest impact, with Hans Yeager, senior principal engineer, architecture, at Tenstorrent; Joe Davis, senior director for Calibre interfaces and EM/IR product management at Siemens EDA; Mo Faisal, CEO of Movellus; Trey Roessig, CTO and senior vice presi... » read more

Intel Vs. Samsung Vs. TSMC


The three leading-edge foundries — Intel, Samsung, and TSMC — have started filling in some key pieces in their roadmaps, adding aggressive delivery dates for future generations of chip technology and setting the stage for significant improvements in performance with faster delivery time for custom designs. Unlike in the past, when a single industry roadmap dictated how to get to the next... » read more

Trouble Ahead For IC Verification


Verification complexity is roughly the square of design complexity, but until recently verification success rates have remained fairly consistent. That's beginning to change. There are troubling signs that verification is collapsing under the load. The first-time success rate fell (see figure 1) in the last survey conducted by Wilson Research, on behalf of Siemens EDA, in 2022. A new survey ... » read more

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