Patent ID: 8822994

Claim:
A device, comprising: a substrate; circuitry formed on the substrate; a first metal level coupled to the circuitry, the first metal level including: a first probe pad having a first surface planarized by a chemical mechanical polish, no portion of the first probe pad extending above the planarized first surface; and a first indentation in the first probe pad, the indentation extending towards the substrate below the planarized first surface; a first insulation layer over the first metal level, the first insulation layer covering the first probe pad and extending into the first indentation; and a second metal level over the first insulation layer, the second metal level including: a second probe pad on the first insulation layer wherein the second probe pad has a second surface planarized by a chemical mechanical polish, no portion of the second probe pad extending above the planarized second surface and the second probe pad has a second indentation extending towards the substrate below the planarized second surface.