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公开(公告)号：US20250067605A1
公开(公告)日：2025-02-27
申请号：US18724398
申请日：2022-11-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chuangchuang Liu , Wenhao Yan , Baoyang Chen , Jin Yang
Abstract: A sensor includes: two friction layers and at least one electrode layer. The two friction layers are respectively made of materials with different electron gain and loss capabilities, and a surface of at least one friction layer includes a multi-level micro-nano structure, so that when there is pressure, equal-quantity and opposite net charges corresponding to the applied pressure are induced on the two friction layers. The multi-level micro-nano structure includes micro-nano columnar structures with at least two different heights. The electrode layer is configured to generate a current based on the net charges. The multi-level structure with different heights is designed.
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