Silicon Image Intellectual Property Business Expands: HDMI Core IP Paired with PHY Semiconductors Solidifies Silicon Image's Industry Leadership

SUNNYVALE, Calif., May 29, 2007 — Silicon Image, Inc. (NASDAQ: SIMG), a leader in semiconductors for the secure storage, distribution and presentation of high-definition content, today announced that by combining its digital implementations of the High-Definition Multimedia Interface™ (HDMI) intellectual property (IP) cores with its HDMI analog physical layer (PHY) semiconductors, the company has begun to achieve significant market success, having already sold approximately four million HDMI PHY semiconductors. Silicon Image HDMI digital IP Cores embedded in SoCs (system-on-a-chip) combined with the external VastLane™ SiI9002 and SiI9003 PHY semiconductors offer an attractive option for consumer electronics manufacturers, providing quick time-to-market with lower costs achieved through greater integration.

Silicon Image offers the broadest portfolio of HDMI solutions available on the market, giving integrated circuit (IC) designers and OEMs flexibility to select between HDMI semiconductors or IP cores that best suit their time-to-market, packaging, cost or integration design needs. Silicon Image’s comprehensive solutions range from standalone HDMI transmitter and receiver semiconductors, to full integrated HDMI cores (digital and analog), to the combination of HDMI digital IP paired with the companion PHY semiconductor.

Sigma Designs, a leader in digital media processors for consumer electronics products, integrated Silicon Image’s digital IP core into its SMP8630 series media processors.  These advanced high definition media processors have become a defacto standard for the current generation of Internet Protocol TV set-top boxes and Blu-ray Disc players.  Sigma Designs also specifies that Silicon Image’s SiI9002 semiconductors to be paired with these integrated SoCs in its reference board platforms for Internet Protocol TV set-top boxes and Blu-ray Disc players.

“Sigma is dedicated to providing chips that deliver the highest quality front-of-screen experience with the most convenient overall system solution available for developing high definition consumer entertainment products,” said Thinh Tran, Chairman and CEO of Sigma Designs. “Silicon Image’s IP core technology enabled us to offer solid HDMI output capability which has since been shipped in millions of units.”

Silicon Image also announced the successful integration of sci-worx, a leading IP and design service provider specializing in multimedia, communications and networking applications, which Silicon Image acquired on January 3, 2007. The acquisition enhances and accelerates the expansion of Silicon Image’s system-on-chip (SoC) design capabilities, and strengthens the company’s position as the leading provider of semiconductor IP solutions for high-definition multimedia and data storage applications. Silicon Image now offers IP core products including multi-standard high-definition video decoders (MPEG-2, H.264, VC1), multi-format video encoders, as well as mobile and camera (JPEG) IP cores.

“Silicon Image is the only company providing this unique combination of HDMI PHY ICs and IP cores,” said Ron Richter, director of HDMI IP Products at Silicon Image. “The success of this low-cost HDMI solution reinforces Silicon Image’s strong position in the IP core business, while leveraging our success and market leadership in HDMI semiconductors. And now, with more than 50 products in our IP core portfolio, we will be able to provide even more outstanding solutions for our SoC customers, particularly in video and multimedia application markets.”

Silicon Image representatives will be in booth #4265 at the Design Automation Conference in San Diego, Calif., June 4-8.

About Silicon Image, Inc.
Headquartered in Sunnyvale, Calif., Silicon Image, Inc. is a leader in driving the architecture and semiconductor implementations for the secure storage, distribution and presentation of high-definition content in the consumer electronics and personal computing markets. Silicon Image creates and drives industry standards for digital content delivery such as DVI, HDMI™ and Serial ATA (SATA), leveraging partnerships with global leaders in the consumer electronics and personal computing markets to meet the growing digital content needs of consumers worldwide. With a proven track record of improving cross-product interoperability, Silicon Image has shipped more than 100 million HDMI/HDCP and DVI/HDCP semiconductor solutions and offers one of the most robust and comprehensively tested technology platforms in the consumer electronics industry through the Simplay HD™ Testing Program of Simplay Labs. Simplay Labs, LLC, a wholly-owned subsidiary of Silicon Image, is a leading provider of testing technologies, tools and services for high-definition consumer electronics devices such as HDTVs, set-top boxes, audio/video receivers and DVD players, helping manufacturers to achieve compatibility and deliver the highest-quality HDTV experience to consumers. Silicon Image is the leading provider of semiconductor intellectual property solutions for high-definition multimedia and data storage applications. For more information, please visit www.siliconimage.com.