Vanguard Selects ARM Artisan Physical IP Solutions

HSINCHU, TAIWAN AND CAMBRIDGE, UK - Apr. 20, 2005 - Vanguard International Semiconductor Corporation (VIS), a leading specialty IC foundry service provider, and ARM [(LSE:ARM); (Nasdaq:ARMHY)], today announced VIS has licensed the ARM® Artisan® Physical IP products to support VIS' 0.25-micron CMOS process. This first license agreement between VIS and ARM will provide thousands of worldwide design teams using Artisan IP access to solutions optimized for VIS' IC manufacturing services. These IP solutions will help customers meet their design and foundry requirements as well as shorten their time-to-market.

VIS offers a wide range of process technologies, including logic, mixed-signal, analog, high voltage, low power, CMOS RF, flash, embedded memory and Bipolar CMOS DMOS (BCD). VIS currently has a capacity of more than 55,000 eight-inch wafer output per month and its generic and highly specialized processes comply with the requirements for the automotive, industrial, communication, consumer and PC industries.

The licensed ARM IP products include the Artisan advanced memory generators and SAGE-X™ Standard Cell Library. The IP conforms to the Artisan design standard including the Artisan extensive set of views and models delivered with industry leading EDA tools. Additionally, the agreement provides for ARM to distribute its VIS-based IP under its Artisan Access Library Program on a worldwide basis at no charge to licensed design teams.

"VIS is committed to becoming the world's leading customized specialty IC manufacturing foundry," said Daniel Chen, VIS' vice president, general counsel. "Collaborating with IP partners like ARM enables us to further provide cost-effective and value-added solutions to help meet our mutual customers' IC manufacturing needs."

"VIS and ARM are dedicated to providing customers with advanced SoC design solutions," said Mark Templeton, president and chief strategy officer of ARM, Inc. "This agreement will expand the proliferation of our technologies and enable our mutual customers to utilize the full potential of the ARM Artisan physical IP with Vanguard's highly respected manufacturing capability."

Product Availability

Front-end and complete views of the Artisan memory generators and SAGE-X Standard Cell for Vanguard's 0.25-micron process are immediately available on ARM's website at www.artisan.com for licensed design teams to download at no charge.

About Vanguard International Semiconductor Corporation

Vanguard International Semiconductor Corporation is a leading specialty IC foundry service provider. Founded in 1994 and headquartered in Hsinchu Science Park, Taiwan, the Company specializes in IC manufacturing services such as Mask-ROM, High Voltage Devices, CMOS Imaging Sensors, Flash and Mixed-Mode processes. The Company's common stock is traded on the Taiwan Over-the-Counter (OTC) Stock Exchange under the code of "5347."

For more information, please visit VIS' web site at www.vis.com.tw.

About ARM

ARM designs the technology that lies at the heart of advanced digital products, from wireless, networking and consumer entertainment solutions to imaging, automotive, security and storage devices.  ARM's comprehensive product offering includes 16/32-bit RISC microprocessors, data engines, 3D processors, digital libraries, embedded memories, peripherals, software and development tools, as well as analog functions and high-speed connectivity products.  Combined with the company's broad Partner community, they provide a total system solution that offers a fast, reliable path to market for leading electronics companies. More information on ARM is available at http://www.arm.com.

ENDS

Safe Harbor Statement 

This press release contains forward-looking statements, including, without limitation, features and performance of the ARM Artisan products for VIS's 0.25-micron process and statements regarding the impact or benefit of such products. These statements are subject to various risks and uncertainties, including, but not limited to, technical or other difficulties that affect the performance of such products and market acceptance of such 0.25-micron library products. More information about potential factors that could affect ARM's business and financial results is included in ARM's Annual Report on Form 20-F for the fiscal year ended December 31, 2003 including (without limitation) under the captions, "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations," which is on file with the Securities and Exchange Commission (the "SEC") and available at the SEC's website at www.sec.gov.

ARM is a registered trademark of ARM Limited.  SAGE-X is a trademark of ARM Limited. Artisan and Artisan Components are trademarks of ARM Physical IP, Inc.  All other brands or product names are the property of their respective holders.  "ARM"' is used to represent ARM Holdings plc; its operating company ARM Limited; and the regional subsidiaries ARM INC.; ARM KK; ARM Korea Ltd.; ARM Taiwan; ARM France SAS; ARM Consulting (Shanghai) Co. Ltd.; ARM Belgium N.V.; AXYS Design Automation Inc.; AXYS GmbH; ARM Embedded Solutions Pvt. Ltd.; and ARM Physical IP, Inc.