Ultra-Low Resonance Frequency MEMS Gravimeter With Off-Resonance Closed-Loop Control


This paper reports on a MEMS gravimeter that has a closed-loop system to maintain an ultra-low resonance frequency of 1Hz. The low resonance frequency is attained by using a spring that is the resultant of positive mechanical stiffnesses and negative electrical stiffnesses. Voltage-tunability of the electrical stiffness enables ultra-small and tunable total stiffness. To attain a quick response... » read more

Realizing Your Product Potential Through Pervasive Simulation And Advanced Manufacturing Processes


Global demand for resources has inevitably led to scarcity. The use of resources also generates significant levels of pollution and waste that are difficult to manage. With an ever-growing focus on sustainability, efficiency, and cost savings, the economy is changing. Consumers are demanding products that are made responsibly and optimized for energy efficiency. Many businesses are looking for ... » read more

Automotive Bandwidth Issues Grow As Data Skyrockets


Bandwidth requirements for future vehicles are set to explode as the amount of data moving within vehicles, between vehicles, and between vehicles and infrastructure, continues to grow rapidly. That data will be necessary for a variety of functions, some of which are here today and many of which are still in development. On the safety side, that includes everything from early warning systems... » read more

Who Benefits From Chiplets, And When


Experts at the Table: Semiconductor Engineering sat down to discuss new packaging approaches and integration issues with Anirudh Devgan, president and CEO of Cadence; Joseph Sawicki, executive vice president of Siemens EDA; Niels Faché, vice president and general manager at Keysight; Simon Segars, advisor at Arm; and Aki Fujimura, chairman and CEO of D2S. This discussion was held in front of a... » read more

Circuit knitting Based On Quasiprobability Simulation


New paper "Circuit knitting with classical communication, " from researchers at ETH Zurich and IBM Quantum. Abstract: "The scarcity of qubits is a major obstacle to the practical usage of quantum computers in the near future. To circumvent this problem, various circuit knitting techniques have been developed to partition large quantum circuits into subcircuits that fit on smaller devices,... » read more

Interop Shift Left: Using Pre-Silicon Simulation for Emerging Standards


By Martin James, Gary Dick, and Arif Khan, Cadence with Suhas Pai and Brian Rea, Intel The Compute Express Link™ (CXL™) 2.0 specification, released in 2020, accompanies the latest PCI Express (PCIe) 5.0 specification to provide a path to high-bandwidth, cache-coherent, low-latency transport for many high-bandwidth applications such as artificial intelligence, machine learning, ... » read more

EDA On Cloud Presents Unique Challenges


Discussions about cloud-based EDA tools are heating up for both hardware and software engineering projects, opening the door to vast compute resources that can be scaled up and down as needed. Still, not everyone is on board with this shift, and even companies that use the cloud don't necessarily want to use it for every aspect of chip design. But the number of cloud-based EDA tools is growi... » read more

Why Comparing Processors Is So Difficult


Every new processor claims to be the fastest, the cheapest, or the most power frugal, but how those claims are measured and the supporting information can range from very useful to irrelevant. The chip industry is struggling far more than in the past to provide informative metrics. Twenty years ago, it was relatively easy to measure processor performance. It was a combination of the rate at ... » read more

Comparing Formal And Simulation Code Coverage


There is a difference in semantics between code coverage generated from a simulator engine and code coverage generated from a formal engine. This paper seeks to raise the awareness of verification engineers on how best to make use of the code coverage data generated by different verification engines. The paper lays out the reasons for using code coverage and describes how simulation code covera... » read more

Data Security Challenges In Automotive


Automakers are scrambling to prevent security breaches and data hacks in new vehicles while simultaneously adding new and increasingly autonomous features into vehicles that can open the door to new vulnerabilities. These two goals are often at odds. As with security in any complex system, nothing is ever completely secure. But even getting a handle on this multilayered issue is a challenge.... » read more

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