公开(公告)号：US20220400569A1

公开(公告)日：2022-12-15

申请号：US17811402

申请日：2022-07-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yoonhee LEE ,  Juncheol SHIN ,  Hangyu HWANG ,  Yucheol KIM ,  Jungmin YEO

IPC: H05K5/04 ,  C25D21/00 ,  C25D11/24

Abstract: Disclosed are an electronic device including a housing having a matte surface and a method of manufacturing the same. An electronic device according to various embodiments of the disclosure is an electronic device including a housing. The housing may include a base material including an aluminum alloy, a plurality of pits adjacently formed on a surface of the base material, and a crystal grain boundary protrusion part formed as a crystal grain boundary of the surface of the base material portion protrudes on the surface. A method of manufacturing a housing for an electronic device may include an etching step of generating irregularities on a surface of a base material including an aluminum alloy in a way to etch the base material by dipping the base material into an etching solution containing chloride ions, and an anodizing step of forming an anodizing layer on the surface of the base material by dipping, into an anodizing solution, the base material on which the etching step has been completed and applying a current to the base material by using the base material as an anode.

公开(公告)号：US20230354538A1

公开(公告)日：2023-11-02

申请号：US18348661

申请日：2023-07-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hwanju JEON ,  Jungmin YEO ,  Kyuin LEE ,  Junsang PARK ,  Sunghoon CHO

IPC: H05K5/03 ,  H05K9/00

CPC classification number: H05K5/03 ,  H05K9/0007

Abstract: A cover plate for an electronic device may include: a first layer including a first surface facing a first direction, a second surface facing a second direction opposite to the first direction, and a specified type of fiber disposed between the first and second surfaces; and a second layer having a specified RF shielding effectiveness and disposed in the second direction with respect to the first layer. Various other embodiments are also possible.