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US 12,312,527 B2Granted
Housing of electronic device and method for manufacturing the same
AssigneeSamsung Electronics Co., Ltd.
InventorsHyunsu Kim, Goeun Kim, Inkyu Kim, Hyesun Park, Heesung Lee, Youngjun Heo, Youngsoo Jung
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Abstract
According to an embodiment, a housing of an electronic device comprises: a metal frame, wherein a surface of the metal frame has: a gloss value of 1 gloss unit (Gu) to 10 Gu, and a maximum height of a plurality of irregularities disposed on the surface in a range between 0.1 μm to 2.3 μm, and a maximum depth of valleys between the plurality of irregularities in a range between 0.1 μm to 1.8 μm, and a number of the plurality of irregularities per unit area of 1 cm2 in a range between 90 to 200.
Claims6
A housing of an electronic device, comprising,
- a metal frame,
- wherein a surface of the metal frame has:
- a gloss value of 1 gloss unit (Gu) to 10 Gu, and
- a maximum height of a plurality of irregularities disposed on the surface in a range between 0.1 μm to 2.3 μm, and a maximum depth of valleys between the plurality of irregularities in a range between 0.1 μm to 1.8 μm, from an average height, and
- a number of the plurality of irregularities per unit area of 1 cm2 in a range between 90 to 200, wherein the surface of the metal frame has:
- 37000 to 50000 peaks per unit area of 1mm2 and wherein a root mean square gradient for the peaks is 2500 to 4000, and
- wherein the metal frame comprises particles having particles within the range of 76 um and 142 um.
4 more elements
Dependencies are inferred from the claim text.