Rhombic Corporation Accelerates Wafer Purification and Diamond Semiconductor Material Research and Development.

Business Editors

VANCOUVER, B.C.--(BUSINESS WIRE)--May 22, 2000

Rhombic Corporation (OTCBB:NUKE) is pleased to announce that a high voltage silicon-carbide purification reactor has been completed by Rhombic's contracted scientists to enhance the removal of impurities from Gallium-Nitrate and Silicon-Carbide wafers.

Also, design work is near completion for a third generation reactor capable of handling larger wafers with higher impurity rates.

During the first quarter of this year, three second generation diffusion reactors were completed for N-type semiconductor material, P-type diamond material and the purification of crystals. During the remainder of this second quarter, Rhombic's contracted scientists will be researching commercial applications for developing our wafer purification technology and the N-type diamond semiconductor material.

The N-type diamond semiconductor material is the cornerstone for diamond circuitry and has several superior qualities to silicon. Diamond semiconductor material has a transistor speed 32 times faster than silicon with higher resistance to host and radiation and chemical attack. These properties are particularly important to the satellite, computer and automotive Industry.

Research is continuing toward the development of the doped diamond fuel-cell electrode and the quality of diamond coloring. Rhombic's patented forced diffusion technology allows engineers to micro-engineer the properties of many materials. A large commercial market exists for special applications of micro-engineered properties in optics, mechanics, sensors, tooling, fabrication and electronic devices, Microengineering the electrical properties of diamond has direct application to making electronic devices.

Rhombic is in discussions with consulting groups explaining how special microengineered materials using forced diffusion would have commercial applications.

Rhombic trades on the Frankfurt Stock Exchange and the Hamburg Stock Exchange under the symbol "919335" and on the OTC Bulletin Board under the symbol "NUKE".

Statements in this news release looking forward in time involve risks and uncertainties, and actual results may be materially different. Factors that could cause actual results to differ include activity levels in the securities markets and other risk factors.