Powering CFETs From The Backside


The first CMOS circuits to incorporate backside power connections are likely to be based on stacked nanosheet transistors, but further down the road, planners envision complementary transistors (CFETs) that vertically integrate stacked NFET and PFET devices. With at least twice the thickness of a nanosheet transistor, connecting CFETs to each other and to the rest of the circuit is likely to... » read more

Closing The Test And Metrology Gap In 3D-IC Packages


The industry is investing in more precise and productive inspection and testing to enable advanced packages and eventually, 3D ICs. The next generations of aerospace, automotive, smartphone, and wearable tech most likely will be powered by multiple layers of intricately connected silicon, a stark departure from the planar landscapes of traditional integrated circuits. These 3D-ICs, compos... » read more

Successful 3D-IC Design, Verification, And Analysis Requires An Integrated Approach


3D-IC designs enable improvements in performance, power, footprint, and costs that cannot be attained in system-on-chip (SoC) and IC design. However, the leap from traditional SoC/IC design to 3D-IC designs brings not only new opportunities, but also new challenges. Siemens EDA provides multiple 3D-IC design analysis and verification functionalities that address the diverse needs of 3DIC des... » read more

What To Do About Electrostatic Discharge


Electrostatic discharge is a well-understood phenomenon, but it’s becoming more difficult to plan for as single chips are replaced by multiple chips or chiplets in a package, and as the density of components continues to increase with each new node. In both cases, the probability for failure increases unless these sudden shocks are addressed in the design. Dermott Lynch, director of product m... » read more

ESD Co-Design For 224G And 112G SerDes In FinFET Technologies


In addressing the challenges of enhancing ESD resilience for high-speed SerDes interfaces, it's crucial to ensure the implementation of appropriate ESD protection measures. This is particularly vital during the device's lifecycle from the conclusion of silicon wafer processing to system assembly, a phase during which electronic devices are highly susceptible to Electrostatic Discharge (ESD) dam... » read more

ESD Co-Design For High-Speed SerDeS In FinFET Technologies


An electronic device is susceptible to Electrostatic Discharge (ESD) damage during its entire life cycle, including the phase from the completion of the silicon wafer processing to when the device (die) is assembled in the system. To avoid yield loss due to ESD damage during this early phase, on-chip ESD protection measures are applied to provide a certain degree of ESD robustness. The componen... » read more

Ensuring ESD Protection Verification With Industry-Standard Checks


Electronic design automation (EDA) verification of electrostatic discharge (ESD) protection is a complex task. Different integrated circuit (IC) design companies use different ESD protection approaches, different design flows, and different verification tools. To establish a consistent and comprehensive ESD EDA verification flow, the ESD Association (ESDA) provides recommended ESD compliance ch... » read more

Are You Paying Proper Attention To Your ESD Design Windows?


Electrostatic discharge (ESD) issues in integrated circuit (IC) chip designs have become more critical at advanced semiconductor process nodes, due to shrinking transistor dimensions and oxide layer thickness [1]. There are many ESD design rules and flows that designers check for common ESD issues, such as topological checks for the existence of ESD protection devices, current density (CD) chec... » read more

Complete Reliability Verification For Multiple-Power-Domain Designs


With increasing design complexity and a heightened focus on reliability at all levels of integrated circuit (IC) design from intellectual property (IP) to full-chip, accurate and full verification coverage of the different reliability concerns within an IC design is essential. Designs containing multiple power domains add more complexity to reliability verification with the need to validate int... » read more

2.5/3D IC Reliability Verification Has Come A Long Way


2.5D/3D integrated circuits (ICs) have evolved into an innovative solution for many IC design and integration challenges. As shown in figure 1, 2.5D ICs have multiple dies placed side-by-side on a passive silicon interposer. The interposer is placed on a ball grid array (BGA) organic substrate. Micro-bumps attach each die to the interposer, and flip-chip (C4) bumps attach the interposer to the ... » read more

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