A Flexible Cluster Tool Simulation Framework With Wafer Batch Dispatching Time Recommendation


The semiconductor manufacturing process consists of multiple steps and is usually time-consuming. Information like the turnaround time of a certain batch of wafers can be very useful for manufacturing engineers. A simulation model of manufacturing process can help predict the performance of manufacturing process efficiently, which is very beneficial to the manufacturing engineers. The simulatio... » read more

The Good Old Days Of EDA


Nostalgia is wonderful, but there is something about being involved in the formative years of an industry. Few people ever get to experience it, and it was probably one of the most fortuitous events to have happened in my life. Back in the early '80s, little in the way of design automation existed. There were a few gate- and transistor-level simulators, primarily for test and a few 'calculators... » read more

System State Challenges Widen


Knowing the state of a system is essential for many analysis and debug tasks, but it's becoming more difficult in heterogeneous systems that are crammed with an increasing array of features. There is a limit as to how many things engineers can keep track of, and the complexity of today's systems extends far beyond that. Hierarchy and abstraction are used to help focus on the important aspect... » read more

The Limits Of AI-Generated Models


In several recent stories, the subject of models has come up, and one recurrent theme is that AI may be able to help us generate models of a required abstraction. While this may be true in some cases, it is very dangerous in others. If we generalize, AI should be good for any model where the results are predominantly continuous, but discontinuities create problems. Unless those are found and... » read more

Anatomy Of A System Simulation


The semiconductor industry has greatly simplified analysis by consolidating around a small number of models and abstractions, but that capability is breaking down both at the implementation level and at the system level. Today, the biggest pressure is coming from the systems industry, where the electronic content is a small fraction of what must be integrated together. Systems companies tend... » read more

Memory And High-Speed Digital Design


As DRAM gets faster, timing constraints, jitter, and signal integrity become harder to control. The real challenge is to understand what can go wrong early in the design process, and that becomes more complex with each new version of memory and higher signal speeds. Stephen Slater, product manager for EDA products at Keysight, talks about how simulation can be applied to these issues, what to t... » read more

Maximizing Design Flexibility For Multi-Layered And Diffractive Optical Components


A broad range of optical devices use nanostructured layers and surfaces to manipulate beams of light through diffraction and interference. Example devices include diffraction gratings, metasurfaces, diffractive optical elements, and metalenses. While the purpose and function of these devices can differ, they offer similar challenges from the point of view of simulation. In this white paper, ... » read more

Simplifying Power Module Verification Using Compliance Checking


By Wilfried Wessel, Siemens EDA; Simon Liebetegger, University of Applied Sciences, Darmstadt; and Florian Bauer, Siemens EDA Current simulation and verification methods for power modules are time-consuming. Each domain has specific solutions based on finite elements analysis, computational fluid dynamics and solvers for electric circuits like SPICE. This article investigates if it is possib... » read more

Everyone’s A System Designer With Heterogeneous Integration


The move away from monolithic SoCs to heterogeneous chips and chiplets in a package is accelerating, setting in motion a broad shift in methodologies, collaborations, and design goals that are felt by engineers at every step of the flow, from design through manufacturing. Nearly every engineer is now working or touching some technology, process, or methodology that is new. And they are inter... » read more

The Federation Needs A Taxonomy


While putting together the story about federated simulation, it brought back memories of an earlier part of my career when I spent a lot of time looking at modeling abstractions and simulation frameworks. In the mid-1990s, the notions of re-using pre-designed blocks of IP started to become popular, but the fledgling industry was in disarray. Every IP block had a different set of deliverables... » read more

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