A股半导体企业，起诉美国公司

Core Viewpoint - The article discusses a legal dispute between Yitang Co., a leading semiconductor equipment company, and Applied Materials, alleging the latter illegally obtained and used Yitang's core technology secrets related to plasma sources and wafer surface treatment, constituting a breach of trade secrets [3][4][8]. Group 1: Legal Case Details - Yitang Co. has filed a lawsuit against Applied Materials for 99.99 million yuan, claiming that two employees, previously working at Yitang's subsidiary, disclosed confidential technology after being hired by Applied Materials [4][8]. - The lawsuit is based on evidence that the two employees, who signed confidentiality agreements, contributed to a patent application submitted by Applied Materials that revealed Yitang's trade secrets [4][8]. - The case has been accepted by the Beijing Intellectual Property Court, but has not yet gone to trial [7]. Group 2: Company Overview - Yitang Co. specializes in the research, production, and sales of high-end semiconductor process equipment, with products including dry stripping equipment, rapid thermal processing equipment, and dry etching equipment [9]. - As of the end of 2024, Yitang's global installed base exceeds 4,800 units, and it holds the second-largest market share globally for dry stripping and rapid thermal processing equipment as of 2023 [9]. - Yitang Co. went public on the Shanghai Stock Exchange's Sci-Tech Innovation Board on July 8, with a stock price of 22.88 yuan per share and a market capitalization of 67.62 billion yuan as of August 13 [10]. Group 3: Management Changes - On July 26, Yitang Co. announced adjustments to its senior management and core technical personnel, including changes in the roles of Subhash Deshmukh and Schubert S. Chu, who will no longer serve as vice presidents but will remain with the subsidiary MTI [13]. - The company stated that these adjustments would not adversely affect its operations or daily business activities [14].