腾讯、大基金二期持股，这家模拟芯片企业启动IPO！

Core Viewpoint - Shanghai Jiyiwei Semiconductor Co., Ltd. has officially initiated its A-share IPO process after completing the listing guidance filing with the Shanghai Securities Regulatory Bureau, with Guotai Junan Securities as the guiding institution [1]. Group 1: Company Overview - Jiyiwei Semiconductor was established in August 2019 and is headquartered in Zhangjiang Microelectronics Port, Shanghai, with R&D centers in Hangzhou and Chengdu, forming a comprehensive R&D and industrial layout [2][3]. - The company has a registered capital of 151.9382 million yuan and a paid-in capital of 147.36185 million yuan, with no controlling shareholder [2]. Group 2: Business Focus and Technology - As a national high-tech enterprise, Jiyiwei Semiconductor aims to create a domestic, self-controllable high-end analog/digital mixed-signal IC design and industrialization platform, focusing on high-performance, low-power PLL, ADC/DAC, and SerDes core products [3]. - The company specializes in high-speed SerDes technology, offering solutions for high bandwidth interfaces such as 56Gbps and 112Gbps PAM4, targeting the needs of high-speed wired communications, data centers, 5G, and optical communications [3]. Group 3: Financial Backing and Growth - Jiyiwei Semiconductor has completed five rounds of financing, attracting a prestigious lineup of shareholders, including the National Integrated Circuit Industry Investment Fund II and Shanghai Integrated Circuit Industry Investment Fund, as well as industry capital from Tencent Investment and China Mobile Capital [3]. - The company emphasizes intellectual property development, having accumulated multiple patents and software copyrights, which supports its market competitiveness in the high-end chip sector [3].