Applied Nanotech Inc. To Present At Nanobusiness Spring 2002 Conference

Austin, Texas – May 2, 2002 – Applied Nanotech Inc. (ANI), a subsidiary of SI Diamond Technology (OTC BB: SIDT), today announced that its President, Dr. Zvi Yaniv, will be presenting at the NanoBusiness Spring 2002 conference on May 21, 2002. Dr. Yaniv will give a presentation on ANI's products and applications using carbon nanotubes, metalized nanoparticles, silicon nanocrystals, and nanowires.

Nanobusiness Spring 2002 is dedicated to the emerging business of nanotechnology. The event is produced by Penton Media, in conjunction with the industry leading Nanobusiness Alliance and focuses on the emerging business of mems, microsystems and nanotechnology. Nanobusiness Spring is designed to educate entrepreneurs, government officials, financial and business leaders, and to develop opportunities for nanobusiness professionals to interact and network. The event provides attendees with tools and information required to push research and development toward commercialization and to showcase the ongoing integration of small technologies into the global economy. The keynote speaker of the conference is Newt Gingrich, former Speaker of United States House of Representatives and Honorary Chairman of the NanoBusiness Alliance.

The conference runs from May 19-21, 2002 at The Roosevelt Hotel, New York City. The conference website is www.nanobusiness-spring.com.

Safe Harbor Statement

This press release contains forward-looking information within the meaning of Section 27A of the Securities Act of 1933, and Section 21E of the Securities Act of 1934, and is subject to the safe harbor created by those sections. The Company's actual results could differ materially from those projected in the forward-looking information. Future results may be impacted by risk factors listed from time to time in SIDT's SEC reports. SI Diamond Technology, Inc. disclaims any intent or obligation to update forward-looking information.

SI Diamond Technology is a holding company consisting of three wholly owned operating subsidiaries. Applied Nanotech Inc., is a premier research and development organization dedicated to developing applications for nanotechnology. Electronic Billboard Technology, Inc. (EBT) is geared toward the commercialization of electronic digitized sign technology. Sign Builders of America, Inc. (SBOA), is a manufacturer of high quality signage. SI Diamond Technology's website is www.sidiamond.com.

Company Contact:
Doug Baker
Applied Nanotech Holdings, Inc.
248.391.0612
dbaker(at)appliednanotech.net

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