Socionext Launches Flexlets: Pioneering a New Era in Chiplet-Based Silicon Innovation

Socionext Introduces Flexlets: A Breakthrough in Chiplet Design



Socionext Inc., a top-tier player in System-on-Chip (SoC) design and semiconductors, has unveiled its transformative product, Flexlets. This innovative chiplet ecosystem aims to significantly enhance the development of heterogeneous integration, which is becoming essential as the semiconductor industry encounters increasing challenges.

The Shift from Monolithic to Chiplet Designs



Traditional monolithic SoC designs are nearing their limitations, mainly due to factors like reticle size restrictions, yield issues, and thermal constraints. To combat these challenges, the industry is pivoting towards chiplet-based designs. This approach allows developers to integrate core functionalities into modular chiplets, improving performance and reducing time to market. While chiplet technology presents exciting opportunities for modularity and scalability, many existing solutions stem from fixed-function Application Specific Standard Products (ASSPs), curtailing flexibility and personalization.

Socionext tackles these limitations head-on with Flexlets, which offer a library of configurable chiplet designs at the Register Transfer Level (RTL). These designs empower customers to align performance metrics with their specific application demands, whether in sectors like high-performance computing, advanced networking, or cutting-edge automotive systems.

Enhancing Customizability and Integration



What sets Flexlets apart from competing options is their adaptability. Unlike other chiplet solutions that rely on proprietary ecosystems, Socionext’s product allows users to integrate high-quality Intellectual Property (IP) from various vendors. This capability revolutionizes design possibilities, enabling businesses to produce state-of-the-art solutions with superior power, performance, and area (PPA) efficiency in an increasingly competitive marketplace.

Comprehensive Portfolio of Flexlets



Socionext plans to roll out an extensive lineup of Flexlets, featuring integrated security, debugging capabilities, and optimized interfaces. Customers have the option to modify their designs at the RTL level, ensuring they can tailor solutions to their distinct application needs. Current engineering efforts are underway for initial Flexlet base designs, which will include Known Good Die (KGD) samples. The company anticipates commencing its first customer designs by the end of this year and expanding these engagements by the second quarter of 2026.

Key Flexlet Offerings



1. Memory Expansion Flexlets


These are scalable memory solutions that accommodate advanced DDR/LPDDR standards and connect via UCIe-S or UALink, enhancing data throughput.

2. Ethernet Controller Flexlets


These provide robust networking capabilities with high performance through 224G/UE connectivity bridged to UCIe 2.0.

3. PCIe Controller Flexlets


Designed for seamless integration, these controllers connect PCIe Gen7 128G PHY to UCIe 2.0 and offer configurable lanes for various needs.

4. Hybrid PCIe + Ethernet Controller Flexlets


This versatile solution bridges high-speed SerDes (224G/UE) to UCIe 2.0, expanding I/O options significantly.

All Flexlets support advanced packaging methods like 2.5D/3D, including CoWoS, SoW-X, EMIB, and 3D stacking, utilizing the latest process nodes (5 nm, 3 nm, and 2 nm). They adhere to industry standards such as UCIe, UALink, PCIe Gen7, and Ultra Ethernet, ensuring robust interoperability across diverse, multi-vendor environments.

Commitment to Innovation



Socionext's packaging capabilities are on par with the world’s largest chip manufacturers. Having successfully achieved tapeouts in the 2nm range and driven 3DIC test projects, the company showcases proven engineering expertise, supporting multiple high-speed 224G SerDes instances within a Flexlet. Given the current lack of standardized design rule checks for extensive chiplet packages, Socionext assures customers they can innovate with confidence.

The company is steadfast in its mission to revolutionize flexible architectures for chiplet-based systems to meet the evolving demands of today’s advanced applications. The Flexlet family offers a scalable groundwork for next-gen silicon designs, underpinned by adaptability and groundbreaking advancements.

For the latest updates and product launches, visit Socionext's official page on Flexlets.

About Socionext



Socionext America Inc. operates as the U.S. arm of Socionext Inc., a global front-runner in fabless semiconductors specializing in SoCs. Headquartered in Milpitas, California, the company delivers innovative technologies and customizable solutions to meet diverse consumer demands. With its collaborative approach with industry partners spanning manufacturing, IP, EDA, and software, Socionext strives to provide superior semiconductor products that enhance customer capabilities across various sectors, including automotive, data centers, and industrial applications.

Topics Consumer Technology)

【About Using Articles】

You can freely use the title and article content by linking to the page where the article is posted.
※ Images cannot be used.

【About Links】

Links are free to use.