Si Box has $200m Series B; ramps chiplet production

Silicon Box, the chiplet packager founded by Marvell founders Sehat Sutardja and Weili Dai with Dr B.J Han, has raised a $200 billion Series B and is recruiting for 24/7 production at its $2 billion, 750,000 sq ft Singapore assembly plant.

Founded in 2021, the company moved into volume production in Singapore last October.

”Silicon Box is well poised to solve the semiconductor industry’s challenges for fast adoption of chiplet. We are leading the pack to bring high performance, power-optimized, affordable, and scalable solutions that enable next-gen large language models (LLM), generative AI, automotive, data centers, and mobile computing globally,” says Han, “our state-of-the-art factory and advanced panel level packaging are delivering a solution to scale high growth markets, such as AI accelerators, to the masses. This is our first multibillion-dollar factory and we are eager to scale rapidly to support our customers and partners.”

Silicon Box targets package design and fabrication methods from the most advanced AI or edge systems to the simplest circuits. With current development and manufacturing costs for chip designers becoming cost prohibitive except for the most well-funded players, the industry is bottlenecked and consumers paying high prices..

Silicon Box’s large production format sets a new industry standard for large scale, high yield production especially for advanced chiplet-based designs.

The company’s solutions claim to be more reliable and cost effective due to the standardized packaging process for the shortest chiplet-to-chiplet interconnection, reducing the manufacturing costs for high performance devices by up to 90%, with better thermal and electrical performance.

This is especially crucial for the high growth AI accelerator market. Expansion plans for the Singapore factory reflect the severe current shortage in advanced packaging solutions, and Silicon Box’s commitment to enabling AI accelerator solutions and bringing them to the masses.

In addition to the three founders, investors in Silicon Box include: BRV Capital; Event Horizon Capital; Grandfull Convergence Fund; Hillhouse Capital; the corporate venture arm of Lam Research, Lam Capital; Maverick Capital; Prasedium Capital; Tata Electronics; TDK Ventures; and UMC CapitalQa