Shandong Yiguang Electronic Joint Stock Co., Ltd is a joint-stock Company sponsored by Shandong Linyi Semiconductor Plant in 1997. It is the designated enterprise collaboration of military product; also it is the standardization of corporate management and technological innovation in Linyi City. Shandong Provincial Government has been identified as high-tech enterprises in 1999. Now the company has more than 1000 members and stuffs, among which there are more than 400 professional and technical personnel and 36 with senior title. Total assets of 154.99 million, covers an area of 108 Mu, the building covers 21 thousand square meter, and 100000 class spotless workshop of more than 2000 square meter. With more than 40 years experience in manufacturing electronic components, the company has great popularity and high prestige at home and abroad. The leading product of the company is the silicon rectifier, zener, switching, skchotty diodes, L.E.D., LED components, small signal SMD diodes and transistors, small power MOS transistor, all kinds of digital transistor, , all kinds of piezoelectric ceramic resonator, new type piezoelectric special transducer. And now the annual product capacity is of 45 billion pieces. The company undertook the national item of research and manufacture ???High Frequency Piezoelectric Ceramic Resonator??? has passed the national-level acceptance. Small-signal semiconductor discrete components SMD production line technical transformation has awarded as the high-tech industrialization demonstration project by national Development and Reform Commission. Yiguang trademark has won the most potential brand for electric company in China.