Patent ID: 7642793
Filing Date: 2010-01-05
Classification: G01R

Abstract:
1. A semiconductor device test structure, the test structure comprising: a substrate, the substrate having a first side and a second side, the first side and the second side being on opposing sides of the substrate; a plurality of metal plugs with a first pitch located within the substrate, and extending through the substrate from the first side to the second side; first electrical connectors electrically connected to the plurality of metal plugs on the first side of the substrate; a first dielectric layer located over the substrate and the plurality of metal plugs on the second side of the substrate; a first metal layer located over the first dielectric layer, the first metal layer having a first plurality of separate sections, each of the first plurality of separate sections having a portion that extends through the first dielectric layer and being electrically connected to respective ones of the plurality of metal plugs, wherein the portion that extends through the first dielectric layer comprises a material that is solid at an operating temperature of the semiconductor device test structure; and a plurality of tips with a second pitch different from the first pitch located over respective ones of the first plurality of separate sections, the plurality of tips having an upper portion and a lower portion, the upper portion being smaller than the lower portion.