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US 10,257,969 B2Granted
Electromagnetic wave shielding structure
AssigneeLG Innotek Co., Ltd.
InventorsSoon Young Hyun, Seok Bae, Hyung Yoon, Yong Jae Kwon
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Abstract
According to an embodiment, provided is an electromagnetic wave shielding structure comprising: a shielding structure encompassing an electromagnetic wave generation source, and having a surface roughness on a surface thereof; and an electromagnetic wave shielding metal layer arranged on the surface of the shielding structure so as to encompass the shielding structure, wherein the upper side and the lateral side of the shielding structure have different surface roughness.
Claims3
An electromagnetic wave shielding structure comprising:
- a shielding structure configured to encompass an electromagnetic wave generating source and having a surface roughness;
- and
- an electromagnetic wave shielding metal layer disposed on an inner surface of the shielding structure and configured to encompass the shielding structure,
- wherein a surface roughness of an upper side of the inner surface of the shielding structure is in a range of 1 μm to 7.0 μm and has an average of 5 μm,
- wherein a surface roughness of a lateral side of the inner surface of the shielding structure is in a range of 0.01 μm to 3.0 μm and has an average of 2 μm,
- wherein a surface roughness of the upper side is different from that of the lateral side,
- wherein the electromagnetic wave shielding metal layer has a structure in which metal layers comprised an electroless Cu layer having a thickness of 12 μm, and
- wherein the shielding structure has an electromagnetic wave shielding efficiency in a range of 70˜90 dB for electromagnetic waves having a frequency band of 30 MHz to 1 GHz.
5 more elements
Dependencies are inferred from the claim text.