the needs initiative: 2015 - mos-ak · the needs initiative: 2015 xufeng wang and mark lundstrom...
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NEEDS Purdue University
West Lafayette, Indiana USA
The NEEDS Initiative: 2015 Xufeng Wang and Mark Lundstrom
MOS-AK workshop 2015 1
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NEEDS structure
Tool development (U.C. Berkeley-MAPP +… )
Nanoscience and Nanotechnology theory, modeling, and simulation
MIT Purdue Stanford Berkeley
Compact model development
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Community building -education, -nanoHUB presence, workshops, etc.
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Specific goals
1) Develop a suite of open-source, physics-based compact models for emerging nanodevices.
2) Create tools and processes for developing compact models.
3) Develop educational resources to support 1) and 2).
4) Leverage nanoHUB.org to to engage a broad community of device researchers and designers.
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• Compact model publication platform • VALint • Model and Analysis Prototyping Platform
(MAPP)
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Detailed introduction in Dr. Mahmutoglu’s talk next
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NEEDS on the web
needs.nanohub.org
> 300,000 /yr
NEEDS > 25,000 users
Leveraging nanoHUB
needs.nanohub.org
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NEEDS compact models
• advanced transistors (9/14 funded by NEEDS) • memory devices (2/3) • bio and environmental sensors (3/3) • optical devices (1/2) • spintronic devices (1/3) • power electronic and energy devices (1/2) • MEM/NEM devices (2/3) + Modular approach to spintronics + Tools for system analysis
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Publication platform 1. Start by initiating a project. 2. Build a CM publication
3. Anonymous review
4. Publish on nanoHUB Subm
it Rej
ect
Approve
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Publication platform
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Components of a NEEDS model
Description Content
Title Source code
Version Circuit simulation benchmark
Synopsis Parameter sets/extractor
Abstract Manual
References Other files
NEEDS Modified CMC License
Authors
Tags
Individual compact model page
NEEDS list of compact models
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NEEDS compact model
MVS 1.0.1 Nanotransistor Model (Silicon) By Shaloo Rakheja, Dimitri Antoniadis (MIT)
Model Release Components: • MVS Model 1.0.1 in Verilog-A • MVS Model Circuit Simulation Benchmarks • MVS Model Exerciser in MATLAB • MVS Model Parameter Extractor in MATLAB • MVS Model Manual • Experimental Data from Intel 32 nm and 45 nm N-type devices • Details of changes in this version • The model release components are licensed under a modified CMC license. Licensing
Abstract— The MIT Virtual Source (MVS) model is a semi-empirical compact model for nanoscale transistors that accurately describes the physics of quasi-ballistic transistors with only a few physical parameters.
840 downloads
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Keep track of user statistics Version control and access
Wishlist Questions Citations
(Not from MVS)
Upcoming features: • Bug report • Compact model update tracking • Detailed user usage
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• Compact model publication platform • VALint • Model and Analysis Prototyping Platform
(MAPP)
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Detailed introduction in Dr. Mahmutoglu’s talk next
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VALint
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ADMS compiling errors checking
NEEDS license checking
Pretty printing
Check Edit
CMC Recommended Practices C. McAndrew, et al., “Best Practices for Compact Modeling in Verilog-A”, Journal of Electron Device Society (2015)
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Development of VAlint
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Prototype: VAChecker (2014) • Based on ADMS • Check for single Verilog-A file only. • Simple text based output
Today: VALint BETA (since Sep. 1st, 2015) • Support models with multiple Verilog-A
files. • Text editor interface with VALint
integrated. • To be an integrated part of NEEDS
publication curation. 14
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VALint demo
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• Compact model publication platform • VALint • Model and Analysis Prototyping Platform
(MAPP)
MOS-AK workshop 2015 16
Detailed introduction in Dr. Mahmutoglu’s talk next
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MAPP
MAPP
Modspec Model (Matlab)
MAPP DC/AC/TRAN
(Matlab)
Verilog-A SPICE Open-source Commercial
Led by Jaijeet Roychowdhury, U.C. Berkeley
Model and Analysis Prototyping Platform
First public release: Dec. 2014 Detailed introduction in Dr. Mahmutoglu’s talk next MOS-AK workshop 2015 17
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Summary
Year 1 Put the pieces in place
Year 2 Deploy MAPP within NEEDS Deploy first set of resources
Years 3-4 (Current)
Release MAPP/grow resource base Engage the external community
Year 5 “Finalize” • Educational and training resources • Publication processes • Tools (MAPP, VALint, model exerciser)
Year 6 Transition
• A broad suite of physics-based compact models for emerging nanodevices. • A powerful set of open source tools for developing “simulation-ready” compact models. • A set of open educational resources that: i) help beginners develop simulation-ready
compact models and ii) convey the physical principles of nano-device operation. • A community of students and faculty that are better able to work from end-to-end
across the technology spectrum. • Demonstration of the value of “compact modeling” in research and technology
development.
Dr. Mahmutoglu’s talk next
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Questions
needs.nanohub.org
MOS-AK workshop 2015