The slightly larger round copper particles make the reaction mild, the anisotropic etching ability is reflected, and the inverted pyramid structure is formed
The slightly larger round copper particles make the reaction mild, the antho-heterogeneity etching ability is reflected, and the inverted pyramid structure is formed
The slightly larger size of the round copper particles makes the reaction mild, the anisotropic etching ability can be reflected, and the inverted pyramid structure is formed<BR>