Why Indium Oxide Chips Are Getting So Much Attention


Key Takeaways Their low leakage is of interest for memory applications, particularly capacitor-less gain cell designs; They can be deposited over large areas using low-temperature processes, a very desirable characteristic for BEOL integration, and The variety of compositions available gives designers many options to achieve the specific properties they need. Indium tin oxide (ITO), ... » read more

Doping-Dependent Charge Trapping in WS2 FETs (KU Leuven, imec, TU Wien)


A new technical paper titled "Impact of doping and channel inhomogeneities on the stability of industrially fabricated WS2 FETs" was published by researchers at KU Leuven, imec and TU Wien. Abstract "We report doping-dependent charge trapping in WS2 field-effect transistors fabricated on a 300 mm wafer. In particular, higher n-type doping–associated with smaller channel areas–correlat... » read more

The Vulnerability of Clock Trees to Asymmetric Aging


A new technical paper titled "The Impact of Asymmetric Transistor Aging on Clock Tree Design Considerations" was published by researchers at Israel Institute of Technology and The Hebrew University of Jerusalem. Abstract "Ensuring integrated circuits (ICs) operate reliably throughout their expected service life is more vital than ever, particularly as they become increasingly central to mis... » read more

Uneven Circuit Aging Becoming A Bigger Problem


Circuit aging is emerging as a first-order design challenge as engineering teams look for new ways to improve reliability and ensure the functionality of chips throughout their expected lifetimes. The need for reliability is obvious in data centers and automobiles, where a chip failure could result in downtime or injury. It also is increasingly important in mobile and consumer electronics, w... » read more

RETBLEED: New Spectre-BTI Attack (ETH Zurich)


New Spectre-BTI attack that "leaks arbitrary kernel memory." It's detailed in this research paper titled “RETBLEED: Arbitrary Speculative Code Execution with Return Instructions” from researchers at ETH Zürich. Mitigations are available. Abstract "Modern operating systems rely on software defenses against hardware attacks. These defenses are, however, as good as the assumptions they m... » read more

NBTI & PBTI of MOSFETs


Technical paper titled "Bias Temperature Instability of MOSFETs: Physical Processes, Models, and Prediction" from researchers at Liverpool John Moores University. Abstract "CMOS technology dominates the semiconductor industry, and the reliability of MOSFETs is a key issue. To optimize chip design, trade-offs between reliability, speed, power consumption, and cost must be carried out. This r... » read more

What’s Holding Back Aging Simulation?


Aging simulation supplies information about the long-term behavior before an IC enters into production, providing an important early evaluation of the reliability required by the application and specification. Re-designs due to reliability issues, and over-design with excessive safety margins, are avoided in this way. In addition, the long-term stability can be demonstrated to the customer. ... » read more

System-Level Power Modeling Takes Root


Power, heat, and their combined effects on aging and reliability, are becoming increasingly critical variables in the design of chips that will be used across a variety of new and existing markets. As more processing moves to edge, where sensors are generating a tsunami of data, there are a number of factors that need to be considered in designs. On one side, power budgets need to reflect th... » read more

Multiphysics Reliability Signoff For Next-Gen Auto Electronics Systems


The automotive industry is in the midst of a sea change. Growing market needs for electrification, connectivity on the go, advanced driver assistance systems, and ultimately the goal of autonomous driving, are creating newer requirements and greater challenges. A chassis on four wheels is now fitted with cameras, radar and other sensors, which will be the eyes of the driverless car, as well as ... » read more

Understanding Your Chip’s Age


A Q&A with Moortec CTO Oliver King. Why is understanding your chip's age important? Semiconductor devices age over time, we all know that, but what is often not well understood are the mechanisms for aging or the limits that will cause a chip to fail. In addition, there is bound to be a requirement for a minimum lifetime of a device which will depend on application but could be two or... » read more

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