Core Viewpoint - Longtu Photomask (688721.SH) has outlined its certification process, which typically takes 6-12 months or longer, depending on the complexity of the manufacturing process [1] Group 1: Certification Process - The certification process includes signing NDA agreements, assessing information security systems, evaluating manufacturing capabilities and precision metrics, verifying process and measurement method compatibility, confirming data processing, and testing samples [1] - The higher the manufacturing process level, the stricter and longer the certification period [1] Group 2: Product Development Status - The company has successfully transitioned its 90nm products from research and development to mass production [1] - The 65nm products are currently in the customer validation phase [1]
龙图光罩(688721.SH)：目前公司90nm产品已成功完成从研发到量产的跨越，65nm产品处于客户验证阶段