Diodes, Inc. Introduces Two Lines of Precision Zener Diodes -- Ultra Tight Tolerance Series and Low Zener Current Series.

Business Editors/High-Tech Writers

WESTLAKE VILLAGE, Calif.--(BUSINESS WIRE)--July 22, 2003

Diodes Incorporated (Nasdaq:DIOD), a leading manufacturer and supplier of high quality discrete semiconductors, today announced the release of two new lines of precision Zener diodes. The new Zener lines are the second and third product releases utilizing Diodes-FabTech's breakthrough precision, high velocity ion implantation process.

Most Zener diode products available on the market today are the result of a traditional diffusion-based process and result in tolerance on Zener breakdown voltage (VZ) down to approximately +/-5% at high yield. In contrast, Diodes' ion implantation process is highly targeted and enables significant performance improvements with control over VZ tolerance to +/-2% at very high yield and can achieve tolerances down to +/-0.5% if required.

"With these new additions to our Zener line, we continue to leverage our proprietary ion implantation process to push the envelope of device performance and deliver greater value to our customers," said Mark King. "Zener Diodes are a key component of our sales mix and these new additions mean that we are now able to offer one of the most comprehensive Zener portfolios in the industry."

The new ultra tight tolerance Zener product line is the DDZ series, and is packaged in a variety of miniature and sub-miniature SOT (3 and 6 pin) & SOD (2 pin) surface mount packages. The series will be marketed as a superior alternative to several popular existing Zener diode lines including the 5200 series, BZT52, and BZX84 series. The DDZ line expands Diodes' application specific array portfolio, specifically targeting price and space sensitive handheld and battery powered applications requiring no-frills voltage regulation.

The ion implantation technique is also being utilized to produce the new DDZ9600 series featuring a low Zener test current of 50 microAmperes. Optimized for operation at very low biasing currents, the 9600 series is ideally suited for use in portable end products requiring a minimum of power consumption for extended battery life, such as notebooks, mobile communication and hand-held computing devices, including PDAs.

Both the DDZ series and the DDZ9600 series are initially offered in SOD-123, SOT-23, SOD-323, SOT-323 and SOT-363 packages and are assembled at the Diodes-China facility. Initial voltage offerings range from 5.1 Volts to 43 Volts for DDZ and 2.7 Volts to 39 Volts for DDZ9600 with planned expansion down to 3.6 Volts for DDZ and 2.4 Volts for DDZ9600 by 4Q03.

For more information, visit http://www.diodes.com or contact Diodes' customer service at 800-446-4800 or email at [e-mail].

About Diodes Incorporated

Diodes Incorporated (Nasdaq:DIOD) is a leading manufacturer and supplier of high-quality discrete semiconductor products, serving the communications, computer, industrial, consumer electronics and automotive markets. The Company operates three Far East subsidiaries, Diodes-China (QS-9000 and ISO-14001 certified) in Shanghai, Diodes-Taiwan (ISO-9000 certified) in Taipei, and Diodes-Hong Kong. Diodes-China's manufacturing focus is on subminiature surface-mount devices destined for wireless devices, notebook, flat panel display, digital camera, mobile handset, set top box, DC to DC conversion, and automotive applications, among others. Diodes-Taiwan is our Asia-Pacific sales, logistics and distribution center. Diodes-Hong Kong covers sales warehouse and logistics functions. The Company's 5" wafer foundry, Diodes-FabTech (QS-9000 certified), specializes in Schottky products and is located just outside Kansas City, Missouri. The Company's ISO-9000 corporate sales, marketing, engineering and logistics headquarters is located in Southern California. For further information, visit the Company's website at http://www.diodes.com.

Safe Harbor Statement Under the Private Securities Litigation Reform Act of 1995: Any statements set forth above that are not historical facts are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Potential risks and uncertainties include, but are not limited to, such factors as fluctuations in product demand, the introduction of new products, the Company's ability to maintain customer and vendor relationships, technological advancements, impact of competitive products and pricing, growth in targeted markets, risks of foreign operations, and other information detailed from time to time in the Company's filings with the United States Securities and Exchange Commission.

Recent news releases, annual reports, and SEC filings are available at the Company's website: http://www.diodes.com. Written requests may be sent directly to the Company, or they may be e-mailed to: [e-mail].

EDITORS NOTE: In "VZ" in the second graph, "Z" should be written as a subscript.