飞凯材料(300398.SZ)：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 actively engaged in the semiconductor photoresist sector, focusing on i-line photoresists and KrF supporting Barc materials, which have achieved stable mass production and validation from downstream customers [1] Group 1: Product Development - The company has successfully developed thick negative photoresists for advanced semiconductor packaging, which have completed validation and are being introduced to clients [1] - The new product is well-suited for 2.5D/3D advanced packaging processes and exhibits high resolution and other excellent performance characteristics [1]