Blog Review: Sept. 18


Siemens’ Kyle Fraunfelter explores the similarities between hurricane forecasting and semiconductor manufacturing to argue for the value of integrating real-time wafer fabrication measurements into the digital twin models used to simulate the semiconductor fabrication process. Cadence’s Rohini Kollipara introduces Display Stream Compression (DSC), which can enable higher resolutions and ... » read more

CXL Thriving As Memory Link


CXL is emerging from a jumble of interconnect standards as a predictable way to connect memory to various processing elements, as well as to share memory resources within a data center. Compute Express Link is built on a PCI Express foundation and supported by nearly all the major chip companies. It is used to link CPUs, GPUs, FPGAs, and other purpose-built accelerators using serial communic... » read more

Chip Industry Week In Review


Infineon rolled out the world's first 300mm gallium nitride (GaN) wafer, opening the door for high-volume manufacturing of GaN-based power semiconductors. A 300mm wafer contains 2.3 times as many chips per wafer as a 200mm wafer. Fig.1: Infineon's 300mm GaN wafer. Source: Infineon The Semiconductor Industry Association released its 2024 State of the U.S. Semiconductor Industry report th... » read more

Simulation Replay Tackles Key Verification Challenges


Simulation lies at the heart of both verification and pre-silicon validation for every semiconductor development project. Finding functional or power problems in the bringup lab is much too late, leading to very expensive chip turns. Thorough simulation before tapeout, coupled with comprehensive coverage metrics, is the only way to avoid surprises in silicon. However, the enormous size and comp... » read more

Is PPA Relevant Today?


The optimization of power, performance, and area (PPA) has been at the core of chip design since the dawn of EDA, but these metrics are becoming less valuable without the context of how and where these chips will be used. Unlike in the past, however, that context now comes from factors outside of hardware development. And while PPA still serves as a useful proxy for many parts of the hardwar... » 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

Blog Review: Sept. 11


Cadence's Neha Joshi introduces the IEEE 1801 standard, also known as UPF (Unified Power Format), which offers a uniform framework for defining power domains, power states, and power intent to ensure consistency across diverse tools and phases of the design process. Siemens' John McMillan warns that known good die may not behave the same in 3D-ICs as they do standalone and suggests that mult... » read more

Taking Data Center Serviceability To The Next Level


It is no secret that Artificial Intelligence (AI) workloads are driving an exponential growth in the scale of supercomputers and data centers. Training the latest LLM (Large Language Model), for instance, typically requires thousands of specialized processing cores running at full speed. As these models get more advanced with each generation, they need additional compute performance to absorb a... » read more

Promises and Perils of Parallel Test


Testing multiple devices at the same time is not providing the equivalent reduction in overall test time due to a combination of test execution issues, the complexity of the devices being tested, and the complex tradeoffs required for parallelism. Parallel testing is now the norm — from full wafer probe DRAM testing with thousands of dies to two-site testing for complex, high-performance c... » read more

Standardizing Defect Coverage In Analog/Mixed Signal Test


A newly drafted IEEE standard will bring more consistency to defect metrics in analog/mixed (AMS) designs, a long-overdue step that has become too difficult to ignore in the costly heterogeneous assemblies being deployed inside of data centers and mobile devices. Standardizing analog is no simple feat due to the legacy approach to AMS design, and this is not the first attempt at improving te... » read more

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