飞凯材料：在半导体光刻胶领域，公司目前产品主要集中在i-line光刻胶及KrF光刻配套Barc材料光刻胶

Core Viewpoint - Feikai Materials (300398.SZ) is focusing on the semiconductor photoresist sector, with stable mass production of its products and successful validation from downstream clients [1] Group 1: Product Development - The company’s products are primarily concentrated in i-line photoresist and KrF photoresist supporting Barc materials [1] - The self-developed thick negative photoresist for advanced semiconductor packaging has completed validation and is being introduced to clients [1] Group 2: Performance and Application - The thick negative photoresist is well-suited for 2.5D/3D advanced packaging processes and exhibits excellent performance characteristics such as high resolution [1]