Engaging in everyday physical activity has immediate benefits for brain health. Middle-aged people who participated in everyday movement showed improvement in cognitive processing speed equivalent to being four years younger, regardless of the activity's intensity level, according to a new study by researchers in the Penn State College of Medicine.

Realme GT 7 Pro will launch in India on November 26 at 12pm IST. The phone was unveiled in China earlier this month. The Indian variant is expected to be similar to its Chinese counterpart. Now Realme has revealed several camera specifications and features of the Realme GT 7 Pro.

Some of Pakistan cricket's legends have criticised the Indian team's refusal to travel across the border for ICC Champions Trophy next year.

While the PCB wants to organise all ICC Champions Trophy matches at home, the BCCI has refused to send the Indian team across the border.

On view through February 26, 2021 Visit the Gallery in-person or view it online Wilmington, Del. (February 3, 2021) –Anamnesis, an exhibition of photography by Bronwen Hazlett, is on view in the Mezzanine Gallery through February 26, 2021. Hazlett, a fine art photographer based in Clayton, is fluent in digital and analog photographic processes. Inspired […]

Ex-Tower Hill employee faces seven felonies; no Delaware children or THS students among known victims A Wilmington man and former Tower Hill School employee arrested in April has been indicted on charges arising from a child pornography investigation. William Ushler, 53, was arrested and charged on April 19 by members of the Department of Justice […]

A Seaford pastor has been arrested and charged with 10 felony counts of Dealing in Child Pornography, Attorney General Kathy Jennings announced Thursday.  James R. Dryden, 74, was arrested February 15 following an Internet Crimes Against Children Task Force (ICAC) investigation led by the Delaware Department of Justice and Delaware State Police. ICAC’s investigation was spurred […]

Conviction is State’s first use of updated “partial nudity” statute  A Wilmington man could spend the rest of his life in prison following a litany of felony convictions in a child pornography case. Sheldon Lee, 64, was convicted on May 16 of 50 felonies — 25 counts of Dealing in Child Pornography and 25 counts […]

DEPARTMENT OF EDUCATION: Professional Standards Board

DEPARTMENT OF EDUCATION: Professional Standards Board

Read the in depth Review of Asus ROG Zephyrus S (GX531) Laptops. Know detailed info about Asus ROG Zephyrus S (GX531) configuration, design and performance quality along with pros & cons, Digit rating, verdict based on user opinions/feedback.

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1. Pakistan Government's Firm Stance On Champions Trophy, Report Says PCB Told To...  NDTV Sports
2. ICC in a catch-22 situation amid PCB's steadfast stance on hosting Champions Trophy  Cricbuzz
3. Champions Trophy: PCB wants an explanation in writing from India for refusal to travel  ESPNcricinfo
4. 'Duniya bewakoof hai': Basit Ali gives unique solution to India-Pakistan Champions Trophy stand-off  The Times of India
5. Champions Trophy : Rizwan's welcome message for KL Rahul and Suryakumar  India Today

Introduction

Multiphysics is an integral part of the concepts around digital twins. In this post, I want to discuss the mechanical aspects of multiphysics in system simulations, which are critical for 3D-IC, multi-die, and chiplet design.

The physical world in which we live is growing ever more electrified. Think of the transformation that the cell phone has brought into our lives, as has the present-day migration to electronic vehicles (EVs). These products are not only feats of electronic engineering but of mechanical as well, as the electronics find themselves in new and novel forms such as foldable phones and flying cars (eVOTLs). Here, engineering domains must co-exist and collaborate to bring about the best end products possible.

Start with the electronics—chips, chiplets, IC packaging, PCB, and modules. But now put these into a new form factor that can be dropped or submerged in water or accelerated along a highway. What about drop testing, aerodynamics, and aeroacoustics? These largely computational fluid dynamics (CFD) and/or mechanical multiphysics phenomena must also be accounted for. And then how does the drop testing impact the electrical performance? The world of electronics and its vast array of end products is pushing us beyond pure electrical engineering to be more broadly minded and develop not only heterogeneous products but heterogeneous engineering teams as well.

Cadence's Unique Expertise

It's at this crossroad of complexity and electronic proliferation that Cadence shines. Let's take, for example, the latest push for higher-performing high-bandwidth memory (HBM) devices and AI data center expansion. These technologies are growing from several layers to 12, and I can't emphasize enough the importance of teamwork and integrated solutions in tackling the challenges of advanced packaging technologies and how collaboration is shaping the future of semiconductor innovation and paving the way for cutting-edge developments in the industry.

These layered electronics are powered, and power creates heat. Heat needs to be understood, and thus, the thermal integrity issues uncovered along the way must be addressed. However, electronic thermal issues are just the first domino in a chain of interdependencies. What about the thermal stress and warpage that can be caused by the powering of these stacked devices? How does that then lend to mechanical stress and even material fatigue as the temperature cycles from high to low and back through the use of the electronic device? This is just one example in a long list of many...

Cadence Multiphysics Analysis Offerings

The confluence of electrical, mechanical, and CFD is exactly why Cadence expanded into multiphysics at a significant rate starting in 2019 with the announcement of the Clarity 3D Solver and Celsius Thermal Solver products for electromagnetic (EM) and thermal multiphysics system simulations. Recent acquisitions of Numeca, Pointwise, and Cascade (now branded within Cadence as the Fidelity CFD Platform) as well as Future Facilities (now the Cadence Reality Digital Twin product line) are all adding CFD expertise. The recent addition of Beta CAE brings mechanical multiphysics to the suite of solutions available from Cadence. The full breadth of these multiphysics system analyses, spanning EM, thermal, signal integrity/power integrity (SI/PI), CFD, and now mechanical, creates a platform for digital twinning across a wide array of applications. You can learn more by viewing Cadence's Reality Digital Twin platform launch on the keynote stage at NVIDIA's GTC in March, as well as this Designed with Cadence video: NV5, NVIDIA, and Cadence Collaboration Optimizes Data Centers.

Conclusion

Ever more sophisticated electronic designs are in demand to fulfill the needs of tomorrow's technologies, driving a convergence of electrical and mechanical aspects of multiphysics in system simulations. To successfully produce the exciting new products of the future, both domains must be able to collaborate effectively and efficiently. Cadence is fully committed to developing and providing our customers with the software products they need to enable this electrical/mechanical evolution. From EM, to thermal, to SI/PI, CFD, and mechanical, Cadence is enabling digital twinning across a wide array of applications that are forging pathways to the future.

For more information on Cadence's multiphysics system analysis offerings, visit our webpage and download our brochure.

Have you ever wanted to write a DRC rule deck to check for space or width constraints on polygons? Or have you wondered how the multiple lines of an LVS rule deck extract and conduct a comparison between the schematic and layout? Maybe you've been curious about the role of rule deck writers in creating high-quality designs ready for tape-out.

If any of these questions interest you, there is good news: the latest version (v23.1) of the Physical Verification Rules Writer (PVLRW) course is designed to teach you rule deck writing. This free 16-hour online course includes audio and labs designed to make your learning experience comfortable and flexible. Whether you are new to the concept or an experienced CAD/PDK engineer, the course is structured to enhance your rule deck writing skills.

The PVLRW course covers six core modules: Layer Processing, DRC Rules, Layout Extraction, ERC and LVS Rules, Schematic Netlisting, and Coloring Rules. There are also three optional appendix sections. Each module explains relevant rules with syntax, concepts, graphics, examples, and case studies.

This course is based on tool versions PEGASUS231 and Virtuoso Studio IC231.

Pegasus Input and Output

Pegasus is a cloud-ready physical verification signoff solution that enables engineers to support faster delivery of advanced-node integrated circuits (ICs) to market.

Pegasus requires input data in the form of layout geometry, schematic netlists, and rules that direct the tool operation. The rules fall into two categories: those that describe the fabrication process and those that control the job-specific operation.

Pegasus provides log and report files, netlists, databases, and error databases as output.

Overview of Pegasus Rule File

The rule decks written in Physical Verification Language (PVL) work for the Cadence PV signoff tools Pegasus and PVS (Physical Verification System).   

The PVL rules are placed in a file that gets selected in a run from the GUI or the command line, as the user directs. PVL rules may be on separate lines within the file and can also be contained in named rule blocks.

Each line of code starts with a PVL rule that uses prefix type notation. It consists of a keyword followed by options, input layer or variable names, and output layer or variable names.

A rule block has the format of the keyword rule, followed by a rule name you wish to give it, followed by an opening curly brace. You enter the rules you wish to perform, followed by a closing curly brace on the last separate line.

  Sample Rule deck with individual lines of code and rule blocks.

DRC Rules

The first step in a typical Pegasus flow is a Design Rule Check (DRC), which verifies that layout geometries conform to the minimum width, spacing, and other fabrication process rules required by an IC foundry. Each foundry specifies its own process-dependent rules that must be met by the layout design.

There are three types of DRC rules: layer definition rules, layer derivation rules, and DRC design check rules. Layer definition rules identify the layers contained in the input layout database, and layer derivation rules derive additional layers from the original input layers, allowing the tool to test the design against specific foundry requirements using the design check rules.

A sample DRC Rule deck

A layout view displaying the DRC violations

LVS Rules

The Pegasus Layout Versus Schematic (LVS) tool compares the layout netlist with the schematic netlist to check for discrepancies.

There are two essential LVS rule sets: LVS extraction rules and comparison rules. LVS extraction rules help extract drawn devices and connectivity information from the input layout geometry data and outputs into a layout netlist. The LVS extraction rule set also includes the layer definition, derivation, extraction, connectivity, and net listing rules.

LVS comparison rules are associated with comparing the extracted layout netlist to a schematic netlist.

A sample LVS Rule deck. 

TCL, Macros, and Conditional commands

Tcl is supported and used in various Pegasus functionalities, such as Pegasus rule files and Pegasus configurator. Macros are functional templates that are defined once and can be used multiple times in a rule file. Conditional Commands are used to process or skip specific commands in the rule file.

Do You Have Access to the Cadence Support Portal?

If not, follow the steps below to create your account.

• On the Cadence Support portal, select Register Now and provide the requested information on the Registration page.
• You will need an email address and host ID to sign up.
• If you need help with registration, contact support@cadence.com.

To stay up to date with the latest news and information about Cadence training and webinars, subscribe to the Cadence Training emails.

If you have questions about courses, schedules, online, public, or live onsite training, reach out to us at Cadence Training.

For any questions, general feedback, or future blog topic suggestions, please leave a comment.

Related Resources

About Knowledge Booster Training Bytes

Knowledge Booster Training Bytes is an online journal that relays information about Cadence Training videos, online courses, and upcoming webinars in the Learning section of the Cadence Learning and Support portal. This blog category brings you direct links to these videos, courses, and other related material on a regular basis. Subscribe to receive email notifications about our latest Custom IC Design blog posts.

Read this blog for an overview to the Circuit physical verification and parasitic extraction design stage in the Custom IC Design methodology and the key design steps which can help you achieve this.(read more)

Robots transporting heavy metal at a Toyota plant. Yaskawa’s robots working alongside human coworkers in factories. To advance efforts like these virtually, Rikei Corporation develops digital twin tooling to assist planning. And if that weren’t enough, diversified retail holdings company Seven & i Holdings is running digital twin simulations to enhance customer experiences. Physical AI Read Article

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Check here each week to keep up with the latest from John MacArthur's pulpit at Grace Community Church.

Amidst the celebrations following Australia’s triumphant win against India in the Cricket World Cup, a viral picture of Australian batsman Mitchell Marsh has stirred controversy on social media. The World Cup victory, marking Australia’s sixth title in cricket history, took place at the Narendra Modi Stadium in Ahmedabad, igniting fervent celebrations among the Kangaroos. Post-match ... Read more

The post Controversy Erupts as Mitchell Marsh’s Posture with World Cup Trophy Sparks Outcry appeared first on Pakistan Tribune.

The students and the common people of Bangladesh dared to do something in 36 days of July-August that was considered simply impossible by most people just days before August 5, 2024. They said ‘enough is enough’ to an old order that outraged their humanity, robbed their dignity and the rulers imagined that their citadel of […]

Ryan Reynolds shares views on Eddie Murphy's Oscar snub for 'Nutty Professor'Ryan Reynolds has recently expressed his disappointment over the Academy Awards for overlooking Eddie Murphy’s performances in Nutty Professor.Speaking on Variety Awards Circuit podcast, the Deadpool & Wolverine...

The Pakistan Cricket Board (PCB) said on Tuesday it has asked the sport’s governing body to explain India’s refusal to send a team to Pakistan for the Champions Trophy next year.

The International Cricket Council (ICC) informed the PCB last week that India would not tour Pakistan for the eight-team tournament, leaving the fate of the event hanging in the balance.

Pakistan had previously rejected the option of a hybrid arrangement that would allow India to play their matches at neutral venues, for example in the United Arab Emirates.

“The PCB has responded to last week’s ICC letter seeking clarifications for the Indian Board’s decision not to travel to Pakistan for next year’s Champions Trophy,” Sami-Ul-Hasan told AFP.

Deteriorating political ties have meant the bitter rivals have not played a bilateral cricket series for over a decade — squaring off only in ICC multi-nation events.

Pakistani media reported on Tuesday that the PCB would be unwilling to accept security reasons for India’s refusal to visit.

New Zealand have toured Pakistan three times in the past two years, with England visiting twice and Australia once in the same period.

Pakistan also visited India for last year’s ODI World Cup and the PCB had expected the gesture to be reciprocated for the Champions Trophy.

The Champions Trophy is slated to be played across three venues — Lahore, Rawalpindi and Karachi — from February 19 to March 9 next year.

But a final schedule due to be announced this week has been postponed over the stand-off — which PCB chairman Mohsin Naqvi termed disappointing.

“Almost every country wants the tournament to be played in Pakistan and it will be disappointing if they don’t come,” Naqvi, who is also the interior minister, said last week.

“I don’t think anyone should make this a political matter. We’ll give every team as many facilities as we can.” Naqvi said Pakistan would consider pulling out of events in India as a response.

“Pakistan has shown great gestures to India in the past, and we’d like to say clearly India shouldn’t expect such friendly gestures from us every time”.

India is due to host the women’s ODI World Cup and Asia Cup next year and will co-host the Twenty20 World Cup with Sri Lanka in 2026.

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Strange solids called temporal metamaterials finally make it possible to investigate the controversial idea of quantum friction – and push special relativity to its limits

Alex Lupsasca plans to extend Earth's largest telescope network beyond the atmosphere with a space-based dish. It could spot part of a black hole we've never seen before – and perhaps discover new physics

Simple words like "force" and "particle" can mislead us as to what reality is actually like. Physicist Matt Strassler unpacks how to see things more clearly

Astronomer Jo Dunkley is planning to use the Simons Observatory to snare evidence for inflation, the theory that the universe expanded at incredible speed after its birth

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Nobel prizewinning theoretical physicist Peter Higgs has died aged 94. He proposed the particle that gives other particles mass – now named the Higgs boson and discovered by the Large Hadron Collider at CERN in 2012

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When I heard Stephen Hawking extol the mysteries of black holes, I knew theoretical physics was what I wanted to do. There is still so much to learn about these strange regions, says Chanda Prescod-Weinstein

Strange solids called temporal metamaterials finally make it possible to investigate the controversial idea of quantum friction – and push special relativity to its limits

While time is relative, it still flows in one direction for every observer. We don’t yet understand why, but some physicists are looking for answers that invoke the evolution of entropy, says Chanda Prescod-Weinstein

An experiment with a robot and gelatine determined that 65-micrometre-thick paper is the most prone to slicing our skin – but it can also make for a handy recyclable knife

A jiggling robot has revealed the ideal vibrating speed to free jumbled fibres