| CPC G06F 3/0446 (2019.05) [G06F 2203/04112 (2013.01)] | 20 Claims |

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1. A device, comprising connecting portions and conducting wires; the connecting portions and the conducting wires forming a plurality of meshes;
wherein each connecting portion of the connecting portions is connected with four conducting wires; in four conducting wires connected with a same connecting portion, at least one side edge of an end portion of at least one conducting wire and connected with the connecting portion is provided with a notch, a width of the at least one conducting wire at the end portion is smaller than a width of the conducting wire elsewhere, and an edge of the notch joins an edge of the connecting portion.
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