Metal conducting structure and wiring structure

A metal conducting structure includes a first metal conducting layer, a second metal conducting layer, and a third metal conducting layer. The first metal conducting layer consists of a first polymer material and first metal particles. The first metal conducting layer is covered by the second metal conducting layer which is a structure with pores, the structure consists of second metal particles. The second metal conducting layer is covered by the third metal conducting layer. The pores of the second metal conducting layer are filled with a metal material of the third metal conducting layer.