Transparent members for use as shields against...

H - Electricity – 05 – K

Patent

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H05K 9/00 (2006.01) H01J 29/86 (2006.01) H01Q 1/52 (2006.01)

Patent

CA 2282532

A transparent member for shielding electromagnetic waves characterized in that an electrically conducting mesh pattern is formed on a substrate by laminating in order a thin film layer of copper or an alloy thereof by a physical thin film forming means and a thick film layer of copper by a plating means, so that the total light transmittance is not smaller than 50 % and that the elctric resistance of the electrically conducting pattern is not larger than 200 m.OMEGA./.

L'invention concerne un élément transparent de blindage contre des ondes électromagnétiques, caractérisé par la formation sur un substrat d'un motif maillé électroconducteur. Pour ce faire on procède à la stratification, dans l'ordre, d'une couche de film mince de cuivre ou d'un de ses alliages à l'aide d'un élément physique de formation de film mince, puis d'une couche de film épais de cuivre à l'aide d'un élément de placage, de façon à obtenir un facteur de transmission de lumière total qui ne soit pas inférieur à 50 %, et une résistance électrique du motif électroconducteur qui ne soit pas supérieure à 200 m.OMEGA./?.

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