Park Electrochemical Announces the Introduction of Its N4380-13 RF Microwave Performance, Modified Epoxy Materials

Lake Success, New York, April 12, 2004… Park Electrochemical Corp. (NYSE – PKE) announced that it has introduced its new N4380-13 RF materials. Utilizing advanced processing technology, this substrate option is now available through Park’s Neltec business unit in Tempe, Arizona.

The N4380-13 RF substrate material has been developed with a dielectric constant of 3.8 and is available in a wide array of core thicknesses. It has been designed to meet industry needs for a material that offers tightly controlled and predictable electrical characteristics without compromising the reliability and competitive benefits of epoxy. N4380-13 RF is especially well-suited to cost-sensitive applications such as LNBs, power amplifiers and automotive telematics. This material has a UL 94 V-0 designation and eliminates reliance on costly PTFE and ceramic-filled hydrocarbon materials for many RF/Microwave designs.

Certain portions of this news release may be deemed to constitute forward looking statements that are subject to various factors which could cause actual results to differ materially from Park’s expectations. Such factors include, but are not limited to, general conditions in the electronics industry, Park’s competitive position, the status of Park’s relationship with its customers, economic conditions in international markets, the cost and availability of utilities, and the various factors set forth under the caption “Factors That May Affect Future Results” after Item 7 of Park’s Annual Report on Form 10-K for the fiscal year ended March 2, 2003.

Park Electrochemical Corp. is a leading global designer and producer of electronic materials used to fabricate complex multilayer printed circuit boards and interconnection systems. Park specializes in advanced materials for high layer count circuit boards and high speed and RF/Microwave electronic systems. Park’s electronic materials business operates through fully integrated business units in Asia, Europe and North America. The Company’s manufacturing facilities are located in Singapore, China, France, Connecticut, New York, Arizona and California. Park’s electronic materials business operates under the “Nelco” and “Neltec” names.