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The Complex Art Of Handling S-Parameters


By Pradeep Thiagarajan and Youssef Abdelkader IC design is transforming at an accelerated pace along with fabrication technology. The need to incorporate more functionality has led to denser dies, multi-die chips, stacked 3D ICs, and advanced packaging. Furthermore, the increasing demand for enhanced connectivity with more and faster access to data continues to drive technology towards highe... » read more

Cloud-Ready Circuit Simulation Accelerates SoC Verification


By Nebabie Kebebew and Nigel Bleasdale Driven by the explosion of big data and expanding applications, chip design complexity is increasing. Applications such as high-performance computing (HPC), the Internet of Things (IoT), automotive, and 5G mobile and communications coupled with advanced process technology nodes require running a large number of circuit simulations to ensure the circuits... » read more

The Reliability Of Analog Integrated Circuits And Their Simulation-Aided Verification


Different challenges have to be overcome when designing integrated circuits. Besides schematic and layout design work, verification in view of the non-ideal behavior of circuits and semiconductor technologies in particular is also relevant. The designed circuits have to work at specific operating voltages and within ambient temperature ranges and be robust in terms of process fluctuations ... » read more

Designing and Simulating Low-Voltage CMOS Circuits Using Four-Parameter Model


New technical paper titled "Bridging the Gap between Design and Simulation of Low-Voltage CMOS Circuits" from researchers at Federal University of Santa Catarina, Brazil. Abstract "This work proposes a truly compact MOSFET model that contains only four parameters to assist an integrated circuits (IC) designer in a design by hand. The four-parameter model (4PM) is based on the advanced com... » read more

Accelerating Circuit Simulation 10x With GPUs


By Samad Parekh (Synopsys) and Srinivas Kodiyalam (NVIDIA) Many aspects of semiconductor design and verification have an ever-growing “need for speed” that has outpaced the performance improvements available by running on CPUs. Electronic design automation (EDA) companies have responded by creating smarter software algorithms to improve simulation time, sometimes at the expense of relaxe... » read more

The Physics Of Ports And Associated Ground For EM Simulators Serving RF Designs


The use of ports in electromagnetic (EM) simulators has evolved and matured over the years to make real-world design simulations practical. Having a foundational understanding of ports provides an intuitive skill in their proper selection and use in conjunction with circuit simulation. In this white paper, we examine ports common to EM simulators, which are the most common simulators for microw... » read more

A Compact Model For Scalable MTJ Simulation


Read the full technical paper. Published June 9, 2021. Abstract This paper presents a physics-based modeling framework for the analysis and transient simulation of circuits containing Spin-Transfer Torque (STT) Magnetic Tunnel Junction (MTJ) devices. The framework provides the tools to analyze the stochastic behavior of MTJs and to generate Verilog-A compact models for their simulation in lar... » read more

Heterogeneous Computing Model Delivers Order-Of-Magnitude Performance Breakthrough


By Srinivas Kodiyalam (NVIDIA) and Samad Parekh (Synopsys) With the ever-increasing demand for more computing performance, the HPC industry is moving towards a heterogeneous computing model, where GPUs and CPUs work together to perform general-purpose computing tasks. In this heterogeneous computing model, the GPU serves as an accelerator to the CPU, to offload the CPU and to increase comput... » read more

The Future Of FinFETs At 5nm And Beyond


While contact gate pitch (GP) and fin pitch (FP) scaling continues to provide higher performance and lower power to finFET platforms, controlling RC parasitics and achieving higher transistor performance at technology nodes of 5nm and beyond becomes challenging. In collaboration with Imec, we recently used SEMulator3D virtual fabrication to explore an end-to-end solution to better underst... » read more

Virtual Prototyping For Power Electronics Systems


By Alan Courtay and Gobi Kengara Palayam Appavoo Every day, power electronics systems play a bigger role in our lives. All-electric and hybrid vehicles are now common on our streets. Electrification of the aerospace industry is accelerating, and observers expect hybrid and electric aircraft to make an impact over the next decade or two. Many industrial systems rely increasingly on electronic... » read more

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