Jiangsu ChangdianTechnology Co., Ltd. is a famous semiconductor packaging and testing enterprise in China, and the president unit of the integrated circuit encapsulation and testing industry chain technology innovation strategic alliance. Founded in 1972, the company has been awarded the national Key high-tech enterprise, China Electronics Top 100 enterprises, China Semiconductor Leader and other titles. It has a state-level enterprise technology center, post-doctoral research workstation and China's first national engineering laboratory for high-density integrated circuit packaging technology. In 2003, JCET Technology Co., Ltd. was listed on the Shanghai Stock Exchange, China. It is the first listed company in the semiconductor closed test industry in mainland China. In 2015, JCET successfully acquired Singapore Star Co., LTD in the same industry. After the merger, JCET entered the first tier of the international semiconductor closed test industry in terms of business scale, with eight production bases located in China, Singapore and South Korea, and R&D, production and sales network covering major semiconductor markets around the world.