Scroll News
  • India
    • National
    • State News
  • World
  • Business
  • Education
  • Entertainment
  • Lifestyle
    • Health & Fitness
    • Fashion & Beauty
    • Travel
    • Food
  • Tech
    • App News
    • Gadgets
  • Auto
  • Others
    • Sports
    • Agriculture
    • Science
    • Astrology
    • Finance/Money
    • Press Release
    • Religion
    • Social Work
No Result
View All Result
  • India
    • National
    • State News
  • World
  • Business
  • Education
  • Entertainment
  • Lifestyle
    • Health & Fitness
    • Fashion & Beauty
    • Travel
    • Food
  • Tech
    • App News
    • Gadgets
  • Auto
  • Others
    • Sports
    • Agriculture
    • Science
    • Astrology
    • Finance/Money
    • Press Release
    • Religion
    • Social Work
No Result
View All Result
Scroll News
No Result
View All Result
Home Tech

Accurate estimation of manufacturing variations can improve circuit performance

Scroll News by Scroll News
April 12, 2021
in Tech
0
Share on FacebookShare on Twitter

New Delhi: Silicon-based electronic circuits are getting smaller. The Taiwanese manufacturer TSMC currently makes chips with the smallest feature of the circuit measuring just 7 nanometers, with millions of such components packed on a single chip. The process of manufacturing such ultra-dense circuits is complex. Despite world-class control, there are tiny fluctuations in the nanoscale dimensions. Thus, each transistor is slightly different from another across chips and even on the same chip. A circuit designer must account for such variations to ensure that each of the billions of chips produced works as expected. Thus, a model to account for such nanoscale variations in manufacturing is essential.

DrAmitaRawat and Prof UdayanGanguly from the Department of Electrical Engineering, Indian Institute of Technology, Bombay (IIT Bombay), in collaboration with researchers from IMEC, Leuven, Belgium, have experimentally validated their previously proposed method to estimate the change in performance of an electronic circuit caused by manufacturing variations. This is the first time that the experimental validation of variations predicted using physics-based modeling has been reported. The predictions can be integrated with circuit design software, thus making it possible to design better-performing circuits. This work was partially funded by the Indian Institute of Technology Nano Fabrication Lab (IITBNF Lab), the Ministry of Human Resource Development (MHRD), and the Department of Science and Technology (DST).

You May Also Like This

Kingston Leads Channel SSD Shipments for the 6th Consecutive Year

Kingston Leads Channel SSD Shipments for the 6th Consecutive Year

November 27, 2023
The Ultimate Earphone Neckband Companion: Ooka Buddy Series by Ooka Audio

The Ultimate Earphone Neckband Companion: Ooka Buddy Series by Ooka Audio

November 25, 2023
Now brighten up your Diwali spirit with compelling gifting options from Kingston Technology

Now brighten up your Diwali spirit with compelling gifting options from Kingston Technology

November 20, 2023

Patterns are drawn using UV light on semiconductor chips to mark the channel, gate, interconnects, and other circuit components. Patterns with lines and spaces smaller than 10 nanometer tend to have fluctuations of about a nanometer. It is also challenging to place dopant atoms perfectly. The gate metal has nanoscale crystals that are not oriented uniformly in the same direction leading to different atomic interfaces between metal crystal and gate insulator. These local physical variations can significantly affect the electrical properties of the transistor. “For example, the variation in how metal is deposited affects the value of the gate voltage at which the transistor starts conducting current,” explains Dr Rawat, the lead author of the study.

As the building blocks of electronic circuits approach the atomic scale, the physical variations become substantial compared to the component dimensions. In commercially-used design and simulation softwares, circuit performance is inexactly evaluated based on simple variation in electrical properties of the transistor that is increasingly inaccurate as transistors shrink. “We provide process specific physics-based estimates of the electrical variation. It enables a more accurate evaluation of the circuit performance,” says DrRawat. “The designers can also get an idea of how the variation will alter if they change from one manufacturing process to another,” she adds.

To find the influence of the physical variations on the circuit performance, engineers first need to evaluate its effect on the transistor’s electrical properties. Currently, computational methods are used to study the structures of a few hundreds of transistors to find variations in electrical properties. With hours of costly simulations needed to calculate each transistor’s parameters, the process is computationally expensive and time-consuming. “Also, this method does not provide a simple, intuitive model connecting the structural variations to electrical variations of the transistors, necessary for the circuit designers,” comments Prof Ganguly.

“Our team developed the theoretical modelling of variability over nine years and three PhD theses. The journey is chronicled in a magazine article in IEEE Nanotechnology Magazine. Now our work has reached the experimental validation phase,” says Prof Ganguly.

The researchers created a mathematical model that accurately predicts variations in the transistor electrical properties based on the changes in the physical parameters, such as fluctuations of the pattern lines or metal nanocrystal orientation. The same model works for any manufacturing process. They used this transistor variation data to create a ‘variabilityaware’ transistor model to be used in a commercial design and simulation software. Thus circuits designed using this model capture the actual variability due to the manufacturing process, and designers can get an accurate estimation of the circuit performance. “The beauty of our platform is that the circuit performance prediction can be made available commercially, without significantly adding to the cost,” comments DrRawat.

“In addition to making it easier to design better-performing circuits, the proposed method can also provide feedback to the foundry team for improving their processes,” says DrRawat. The process designer can determine which process dependent inputs give the desired physical variability parameters. “It is like building a bridge between the circuit designers and the process team.”

In the current study, the researchers used their model to predict the physical variations for the 14nm technology process. They compared these values with the experimentally measured physical variations and found them to match well. They also estimated the variations in electrical properties of the transistor, and these agreed with the experimentally measured variations of a cluster of 250 transistors made with the 14nm technology. The worst and best case errors were within acceptable limits. “Such elaborate experimental validation has not been reported earlier,” remarks DrRawat.

The researchers plan to provide this framework as a technology package to be plugged into the circuit design software. “We need to collaborate with foundries to access the latest data of manufacturing processes they use. We can create the process-specific package and get it validated from the foundry. It can evolve into an industry standard,” said DrRawat. (India Science Wire)

Tags: circuit designcircuit performanceDepartment of Science and TechnologyDSTIIT BombayIITBNF LabMHRDsoftware
ShareTweetShareShareSendSend
Previous Post

La Mira Fashion – Stylish yet comfy !

Next Post

ZingHR now enters aggressively into the Indian SMB HRMS market with their new vertical ZingNeo

Related Posts

Kingston Leads Channel SSD Shipments for the 6th Consecutive Year
Tech

Kingston Leads Channel SSD Shipments for the 6th Consecutive Year

November 27, 2023
The Ultimate Earphone Neckband Companion: Ooka Buddy Series by Ooka Audio
Business

The Ultimate Earphone Neckband Companion: Ooka Buddy Series by Ooka Audio

November 25, 2023
Now brighten up your Diwali spirit with compelling gifting options from Kingston Technology
Tech

Now brighten up your Diwali spirit with compelling gifting options from Kingston Technology

November 20, 2023
Kingston FURY DDR4 UDIMMs Get a New Look
Tech

Kingston FURY DDR4 UDIMMs Get a New Look

November 2, 2023
Kingston Technology Redefines Tech Dreams with Exclusive Offers in Amazon Great Indian Sale
Tech

Kingston Technology Redefines Tech Dreams with Exclusive Offers in Amazon Great Indian Sale

October 13, 2023
Embrace the Journey with Kingston Technology on World Tourism Day
Tech

Embrace the Journey with Kingston Technology on World Tourism Day

October 4, 2023
Next Post

ZingHR now enters aggressively into the Indian SMB HRMS market with their new vertical ZingNeo

Fuzia - A Platform to Empower Women through Fusion of Cultures and Ideas

Sweat based non-invasive point of health diagnosis technology

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recommended

Every student has a unique idea of what constitutes academic success and Careerkick Services is here to help them get there

Every student has a unique idea of what constitutes academic success, and Careerkick Services is here to help them get there

1 year ago

PIL filed by Divyanshu Mishra Anshu & Katni Blood Donors Welfare Society for installation of plasma Apheresis machine in Katni (MP)

3 years ago

Garuda operates larger planes for Jakarta-Palembang route

2 years ago
Elantis Healthcare launched in New Delhi

Elantis Healthcare launched in New Delhi

1 year ago

Categories

  • Agriculture
  • App News
  • Astrology
  • Auto
  • Business
  • Education
  • Entertainment
  • Fashion & Beauty
  • Finance/Money
  • Food
  • Gadgets
  • Health & Fitness
  • Lifestyle
  • National
  • Photography
  • Politics
  • Press Release
  • Religion
  • Science
  • Social Work
  • Sports
  • State News
  • Tech
  • Travel
  • World

Topics

Ace Entrepreneur Ahmedabad Artificial intelligence author Bengaluru Blockchain technology Content Creator COVID-19 Cryptocurrency CSIR DBT Delhi Department of Biotechnology Digital Marketing DST Dubai Education environment Fairplay Gujarat Gurugram Hyderabad IIT Delhi Indian Institute of Technology Influencer Influencerquipo innovation Kingston Technology K Raheja Corp Homes MoES Mumbai Music Industry NFT Nidarshana Gowani pandemic photography Pune R&D real estate research science social media Surat technology TTK Prestige
No Result
View All Result

Highlights

Ybarra Scholars and Fellows Society Conferred Prof. Dr. Anupriya Amitkumar Gawade as Ybarra Ambassador to India

The Ultimate Earphone Neckband Companion: Ooka Buddy Series by Ooka Audio

BlackRock’s Monumental Investment in Minati Token and MinatiVerse: A Game-Changer for the Minati Community

Minati Token, the Illuminati-Dedicated Project, Secures Massive Investment

Binance Embraces Innovation: Minati Token Set to Join the Ranks in the Innovation Zone

No Monday Blues for Marketing Moves employees after India lost in the World Cup, receive 1 day off for mental well-being!

Trending

Redpixel Printworks Unveils a Paradigm Shift in Print-on-Demand, Pioneering the Customization Revolution
Business

Redpixel Printworks Unveils a Paradigm Shift in Print-on-Demand, Pioneering the Customization Revolution

by Scroll News
November 29, 2023
0

Mumbai (Maharashtra), : Redpixel Printworks Pvt Ltd, the avant-garde online platform, has emerged as a transformative force...

Kingston Leads Channel SSD Shipments for the 6th Consecutive Year

Kingston Leads Channel SSD Shipments for the 6th Consecutive Year

November 27, 2023
Health check-up camp on 26/11 Martyrs’ Day with PM Modi’s message; Manoj Kumar Jain extended support

Health check-up camp on 26/11 Martyrs’ Day with PM Modi’s message; Manoj Kumar Jain extended support

November 27, 2023
Ybarra Scholars and Fellows Society Conferred Prof. Dr. Anupriya Amitkumar Gawade as Ybarra Ambassador to India

Ybarra Scholars and Fellows Society Conferred Prof. Dr. Anupriya Amitkumar Gawade as Ybarra Ambassador to India

November 25, 2023
The Ultimate Earphone Neckband Companion: Ooka Buddy Series by Ooka Audio

The Ultimate Earphone Neckband Companion: Ooka Buddy Series by Ooka Audio

November 25, 2023
  • About Us
  • Advertise
  • Contact Us
  • DMCA
  • Follow on Google News

© 2022 Scroll News

No Result
View All Result
  • About Us
  • Advertise
  • Contact Us
  • DMCA
  • Home
  • Privacy Policy

© 2022 Scroll News