METAL STRUCTURES HAVING HARDENED SURFACES WITH THREE-DIMENSIONAL TOPOLOGIES
    58.
    发明申请
    METAL STRUCTURES HAVING HARDENED SURFACES WITH THREE-DIMENSIONAL TOPOLOGIES 审中-公开
    具有三维拓扑的硬化表面的金属结构

    公开(公告)号:US20140233163A1

    公开(公告)日:2014-08-21

    申请号:US14266592

    申请日:2014-04-30

    Applicant: Apple Inc.

    CPC classification number: H05K5/04 C23C8/02 C23C8/04 H05K5/02 H05K5/03

    Abstract: Forming a 3D topology by forming a monolayer of nano-particles on a stainless steel surface, masking the stainless steel surface forming at least one unmasked regions, the unmasked region having an average density of nano-particles less than a critical average density, and introducing a plurality of exogenous atoms into the stainless steel surface only in the unmasked regions, the exogenous atoms causing the associated metal lattice to expand and harden and have an increase corrosion resistance, thereby selectively forming a 3D topology on the stainless steel surface.

    Abstract translation: 通过在不锈钢表面上形成纳米颗粒单层形成3D拓扑,掩盖形成至少一个未掩蔽区域的不锈钢表面,未掩模区域具有小于临界平均密度的纳米颗粒的平均密度,并引入 多个外源原子仅在未掩蔽的区域中进入不锈钢表面,外源原子引起相关的金属晶格膨胀和硬化,并具有增加的耐腐蚀性,从而在不锈钢表面上选择性地形成3D拓扑结构。

    Thin-Film Interference Filter Color Coatings

    公开(公告)号:US20250052936A1

    公开(公告)日:2025-02-13

    申请号:US18505906

    申请日:2023-11-09

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with conductive structures such as conductive housing structures. A visible-light-reflecting coating may be formed on the conductive structures. The coating may have adhesion and transition layers and a thin-film interference filter on the adhesion and transition layers. The thin-film interference filter may be a four-layer interference filter stacked directly onto the adhesion and transition layers and having an uppermost SiCrN layer, a lowermost SiN layer, and interleaved SiH and SiN layers. If desired, an opaque coloring layer such as a Cr layer may be disposed between the interference filter and the adhesion and transition layers. The coating may exhibit a deep red or orange color that has a relatively uniform visual response even when the underlying conductive structures have a three-dimensional shape.

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