On June 5438+065438+ 10, 2020, Zhao Yi Innovation announced that its holding subsidiary Hefu Zhao Xin Integrated Circuit Co., Ltd. planned to acquire 38.55% equity of Beijing Silicon Semiconductor Technology Co., Ltd. held by Beijing Zheng Jun Integrated Circuit Co., Ltd. in cash with a transaction amount of 678 million yuan. This means that Zhao Yi Innovation has achieved the purpose of borrowing long letter storage by acquiring the equity of Xicheng Semiconductor Technology. Backdoor refers to the listed company's acquisition of another company's equity to achieve listing, thus avoiding its own independent listing procedures and time.