tag: interconnects

Reticle Stitching Bumps Up Silicon Interposer Costs
By Bryon Moyer - 21 Aug, 2025 - Comments: 0

Advanced packaging often relies on silicon interposers to connect chiplets and other components inside a package. The problem is that interposers typically exceed the reticle limit, which adds both complexity and cost. An interposer is essential for 2.5D and 3.5D architectures. As device scaling runs out of steam, chipmakers are decomposing planar SoCs into chiplets and connecting them throu... » read more

The End Of Copper Interconnects?
By Katherine Derbyshire - 21 Aug, 2025 - Comments: 0

After nearly three decades, the era of copper interconnects may be coming to an end. Sort of. At interconnect CDs below 10nm, copper is no longer the best metallization choice. Yet it remains unsurpassed for larger features. The most serious challenge to continued copper scaling is the metal’s dramatic increase in resistivity at dimensions below its relatively large (40nm) mean free path l... » read more

Server-Scale Programmable Photonic Fabric to Interconnect Accelerators Within Servers (Cornell University, Lightmatter)
By Technical Paper Link - 15 Aug, 2025 - Comments: 0

A new technical paper titled "Morphlux: Programmable chip-to-chip photonic fabrics in multi-accelerator servers for ML" was published by researchers at Cornell University and Lightmatter. Abstract "We optically interconnect accelerator chips (e.g., GPUs, TPUs) within compute servers using newly viable programmable chip-to-chip photonic fabrics. In contrast, today, commercial multi-accelerat... » read more

System-Level Design For 1.6 Tbps Interoperability In AI Data Centers
By Madhumita Sanyal - 14 Aug, 2025 - Comments: 0

By Madhumita Sanyal and Diwakar Kumaraswamy The rapid escalation of AI/ML workloads—driven by increasingly large language models—is reshaping high-performance computing and AI data center architectures. Real-time inference and large-scale training are pushing the limits of compute and interconnect performance. With model sizes and parameter counts doubling every 4–6 months, infrastruct... » read more

Low-Latency Interconnect for Close-Coupled On-Chip Communication With Error Correction Code Protection (ETH Zurich)
By Technical Paper Link - 11 Aug, 2025 - Comments: 0

A new technical paper titled "relOBI: A Reliable Low-latency Interconnect for Tightly-Coupled On-chip Communication" was published by researchers at ETH Zurich. Excerpt "On-chip communication is a critical element of modern systems-on-chip (SoCs), allowing processor cores to interact with memory and peripherals. Interconnects require special care in radiation-heavy environments, as any soft... » read more

On-Die And In-Package Interconnects: eBook
By Bryon Moyer - 28 Jul, 2025 - Comments: 0

We live in the Information Age, but if information cannot get to where it's intended to go, it does no good. And the way information gets from here to there is through interconnects. This report focuses on different interconnect structures, such as lines, vias, buses, and networks-on-chip, and how they’re constructed. As always, we consider the design, test, reliability, and security impli... » read more

Using Picosecond Ultrasonic Technology For AI Packages: Part 2
By Cheolkyu Kim - 10 Jul, 2025 - Comments: 0

Heterogeneous integration is a key enabler of today’s AI innovations. By bringing together multiple chips with different functionalities, a.k.a., chiplets, AI devices have been able to achieve tremendous performance gains. However, the heterogeneous integration of advanced packages has its own set of process control obstacles that must be addressed, including new interconnect challenges invol... » read more

EDA’s Top Execs Map Out An AI-Driven Future
By Ed Sperling - 23 Jun, 2025 - Comments: 0

Artificial intelligence is permeating the entire semiconductor ecosystem, forcing fundamental changes in AI chips, the design tools used to create them, and the methodologies used to ensure they will work reliably. This is a global race that will redefine nearly every domain over the next decade. In presentations and interviews over the past several months, top EDA executives converged on th... » read more

Front-End Technologies Are The New Back-End Tools: Using Picosecond Ultrasonics Technology For AI Packages, Part 1
By Cheolkyu Kim - 10 Jun, 2025 - Comments: 0

If you are a part of the semiconductor industry or simply someone interested in the field, you have likely heard what has become a common refrain: the back-end of the process is becoming more like the front-end of the process. In other words, the technologies that were once exclusively deployed in the first part of the process are being used to meet the increasingly stringent requirements of ad... » read more

Accelerating Scalable Computing
By Shivi Arora - 02 Jun, 2025 - Comments: 0

By Shivi Arora and Sue Hung Fung As computing demands for HPC, AI/ML, and cloud infrastructure grow, modular architectures are replacing traditional monolithic System-on-Chip (SoC) designs. These legacy designs are increasingly expensive and difficult to scale due to ever-increasing silicon complexity. In response, the industry is embracing chiplet-based System-in-Package (SiP) solutions,... » read more

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