Shandong Yiguang Electronic Joint Stock Co., Ltd, the former of it is Shandong Linyi Semiconductor Plant, was established in 1966, is one of the earlist professional manufacturer of diodes, and also "SEVEN SPECIALITY" collaboration company.
In 1997, authorized by the People's Government of Shandong Province, Shandong Linyi Semiconductor Plant Combined with four corporation such as Shandong Linyi Yindu Electronic Co., Ltd and so on and sponsored Shandong Yiguang Electronic Joint Stock Co., Ltd. It is the first Joint Stock Co., Ltd established by sponsorship