沃尔德取得多层金刚石振膜专利，专利技术能实现优异的声音传播速度与传播质量

金融界02-29

据国家知识产权局公告，北京沃尔德金刚石工具股份有限公司取得一项名为“一种多层金刚石振膜及其制备方法与应用“，授权公告号CN117425115B，申请日期为2023年12月。专利摘要显示，本申请涉及声学膜材料技术领域，具体公开了一种多层金刚石振膜及其制备方法与应用。本申请提供的多层金刚石振膜层级结构如A(BC)n所示；A为基底层，晶体粒度为0.5μm?2μm；B为生长层，晶体粒度为5μm?...

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