Wear resistant EMI shield

Details Wear resistant EMI shield Wear resistant EMI shield

2007-11-27

2007-11-27

Lee, Jinhee (Department: 2174)

Electricity: conductors and insulators

Anti-inductive structures

Shielded

C174S357000, C174S376000, C174S388000

Reexamination Certificate

active

11141088

ABSTRACT:
A wear resistant EMI shield includes a metallic film or multiple metallic films, and a carbon-nanotube coating (14) formed on the metallic film or multiple metallic films. The metallic films may include nickel film (12), copper film (13) and NixCu1−x(x=0.62˜0.99) (15) alloy film. In a preferred embodiment, the structure of the wear resistant EMI shield is CNT/Ni/Cu/Ni/. The thickness of metallic film is in the range from 20 to 100 nm and the thickness of carbon-nanotube coating is in the range from 10 to 200 nm. The wear resistant EMI shield may apply to various substrate surfaces (10) of electronic equipment, such as the shell of computer, play-station, wireless equipment, mobile phones, automobiles, airplanes, commercial appliance and consumer products, etc. The wear resistant EMI shield has good wear resistance, EMI shield effect, thin thickness and lightweight.

REFERENCES:
patent: 5945213 (1999-08-01), Nagaike et al.
patent: 6274808 (2001-08-01), Cercioglu et al.
patent: 6908572 (2005-06-01), Derbyshire et al.
patent: 2003/0143453 (2003-07-01), Ren et al.
patent: 2003/0155143 (2003-08-01), Fujieda et al.

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