Nangate and Si2 Release Unprecedented Free 45nm Open Source Digital Cell Library

SRC-funded 45nm open-source PDK leads to first digital cell library released for free use by research community

Mar 4, 2008

Menlo Park, California - Nangate, the leading provider of tools for design-specific digital cell library development, today announced that it has donated an open source 45nm standard-cell library to the Silicon Integration Initiative (Si2) - an organization of industry-leading companies in the semiconductor, electronic systems and EDA tool industries.

The Nangate open source cell library is the first of its kind. The library is based on the FreePDK45 process design kit (PDK) project from North Carolina State University (NCSU). This FreePDK45, initiated by Si2 and the Semiconductor Research Corporation (SRC), was funded by SRC, Si2, and the National Science Foundation (NSF). This PDK does not contain any proprietary or sensitive data that would prohibit free sharing of a library built with it.

The new Nangate cell library is free to use for all non-commercial purposes and is particularly suited to research programs and standards development organizations that have previously had free access only to libraries with much older process technologies. The Predictive Technology Model (PTM) was used in conjunction with the PDK to characterize the 45nm standard-cell library. Research for developing the 45nm predictive models was also funded by SRC.

Prior to its release, the library was, in co-operation with Nangate, successfully validated by Fenix Design Automation.

The Open Modeling Coalition (OMC) under Si2 will use the Nangate library as an integral part of the reference flow for library characterization, modeling, and model usage while Nangate will work with OMC to maintain and define future standards for library flow interfaces.

"Nangate is active in several Si2 initiatives such as the OMC SSTA Working Group, the Technical Steering Group and we are also an adopter of OpenAccess," said Jesper Knudsen, VP Marketing at Nangate. "With our Library Creator™, in which we have invested heavily over the last years, we have a unique platform where the creation and maintenance of standard-cell libraries at 45nm and even below becomes relatively effortless compared to other methodologies in the industry. We are pleased to be able to contribute this missing element of the flow development puzzle," he concluded.

"This contribution from Nangate is a major step in filling a void that has existed for over 20 years. This library will serve academic researchers who are developing EDA algorithms targeted for our newest technology nodes. This effort is a classic example of successful cooperation between several organizations. In addition, having the continued support of Nangate and its automated library creation tools ensures that our standards are kept current with ever-changing process developments," said Sumit DasGupta, Senior Vice-president of Engineering at Si2.

"We were very excited to see that Nangate independently chose to contribute new material to the FreePDK45 effort. We hope others in the user community follow their lead," said Rhett Davis of NCSU, the principal investigator of the FreePDK45 project.

"Our member companies were very supportive of the FreePDK45 initiative and see it as a means to accelerate academic research in IC design. We are pleased that Nangate has chosen to be the first to develop and provide a free cell library," said Dale Edwards, an industry assignee to SRC from AMD,

Nangate will demonstrate the Library Creator and the creation of the FreePDK45-based standard cells at the 12th OpenAccess+ Conference taking place April 16th in San Jose, California.

The Open Cell Library can be obtained directly from Si2 at or from The FreePDK45 can be obtained directly from NCSU at

About Nangate
Nangate develops and markets Electronic Design Automation (EDA) software and physical library IP. Through the merger of physical synthesis and cell library creation, the company provides a unique alternative to one-size-fits-all standard-cell libraries and offers a low-risk alternative to full custom chip design. Nangate software provides a complete environment to optimize designs for performance while minimizing power consumption, die area, and time to market.

About Si2
Si2 is an organization of industry-leading semiconductor, systems, EDA, and manufacturing companies focused on improving the way integrated circuits are designed and manufactured in order to speed time-to-market, reduce costs, and meet the challenges of sub-micro design. Si2 is uniquely positioned to enable collaboration through a strong implementation focus driven by its member companies. Si2 focuses on developing practical technology solutions to industry challenges. Si2 represents companies involved in all parts of the silicon supply chain throughout the world.

About SRC
Celebrating 26 years of collaborative research for the semiconductor industry, SRC defines industry needs, invests in and manages the research that gives its members a competitive advantage in the dynamic global marketplace. Awarded the National Medal of Technology, America's highest recognition for contributions to technology, SRC expands the industry knowledge base and attracts premier students to help innovate and transfer semiconductor technology to the commercial industry. Based in Research Triangle Park, NC, SRC's GRC program drives long-term semiconductor research contracts on behalf of its participating members: Advanced Micro Devices, Inc., Applied Materials, Inc., Axcelis Technologies, Inc., Cadence Design Systems, Freescale Semiconductor, Inc., Hewlett-Packard Co., IBM Corp., Intel Corp., LSI Logic Corp., Mentor Graphics Corp., The Mitre Corp., Novellus Systems, Inc., Rohm and Haas Electronic Materials, Texas Instruments Corp. and Tokyo Electron Ltd. SRC also seeks to leverage funding from global government agencies. For more information, visit

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For additional information, contact:

Silicon Integration Initiative
Austin William Bayer
512-342-2244, ext. 304

Nangate. Inc.
Jesper Knudsen
(+45) 4452 1401

SRC media contact

4819 Emperor Blvd, Suite 300 Durham, NC 27703 Voice: (919) 941-9400 Fax: (919) 941-9450

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