Patent ID: 8822036

Claim:
A sintered silver bonded electronic packaging subcomponent comprising: a first electronic subcomponent comprising a first substrate; a first metal layer having a first metal surface and a second metal surface with the second metal surface formed on or connected to the first substrate, wherein the first metal surface includes a modified topography to increase a roughness of the first metal surface, wherein the modified topography of the first metal surface of the first metal layer is uniaxially ground, grid sliced, grit blasted or chemically etched; and a first silver plating layer formed on the modified first metal surface, wherein the increased roughness of the modified first metal surface increases mechanical interlocking of the first silver plating to the modified surface of the first metal surface; a second electronic subcomponent comprising a second substrate; a second metal layer having a first metal surface and a second metal surface with the second metal surface formed on or connected to the second substrate; and a sintered silver joint connecting the first electronic subcomponent to the second electronic subcomponent at the first silver plating layer and the second metal layer.