TIER IV Joins imec's Automotive Chiplet Program
TIER IV, a developer of open-source autonomous driving software, has joined imec's Automotive Chiplet Program. The collaboration aims to accelerate the development of chiplet-based architectures and AI accelerators for software-defined vehicles.
Belgium-based imec is a leading global R&D hub for nanoelectronics and digital technologies, and its Automotive Chiplet Program includes industry heavyweights like Arm, BMW Group, Bosch, Siemens, and GlobalFoundries. The consortium's goal is to establish a standardized framework for chiplet use in vehicles, aiming to prevent a fragmented market. Chiplets represent a shift away from traditional monolithic System-on-Chips (SoCs). Instead of a single large die, a chiplet architecture uses multiple smaller, specialized dies—for functions like CPU, GPU, I/O, or AI acceleration—interconnected in a single package. This modular "Lego-like" approach improves manufacturing yields, as smaller dies are less prone to defects. This modularity allows for heterogeneous integration, where chiplets made on different process nodes can be combined. For instance, a high-performance AI accelerator could use a cutting-edge 3nm process, while a less-demanding I/O controller uses a more mature and cost-effective 16nm process, optimizing both performance and cost. TIER IV is the creator of Autoware, the world's first and largest open-source software project for autonomous driving. Their involvement signals the critical need for hardware architectures that are flexible enough to support complex, evolving AD software stacks and containerized microservices for perception, planning, and control. The collaboration is foundational for the industry's transition to Software-Defined Vehicles (SDVs), a market valued at over $200 billion in 2024. SDVs rely on centralized high-performance computers rather than distributed ECUs, a shift that traditional monolithic chip designs are struggling to support efficiently. By creating common standards, the imec program aims to enable automakers to source chiplets from various suppliers and integrate them with their own proprietary designs. This fosters a more competitive and resilient supply chain, accelerates development cycles, and reduces the high costs associated with designing complex, single-chip solutions for every new vehicle platform.
