Patent ID: 7130029

Claim:
A system configured to determine at least two properties of a specimen during use, comprising: a stage configured to support the specimen during use, wherein the specimen is a product wafer; a measurement device coupled to the stage, comprising: an illumination system configured to direct energy toward an upper surface and a bottom surface of the specimen simultaneously during use; and a detection system coupled to the illumination system and configured to detect energy propagating from the upper surface and the bottom surface of the specimen simultaneously during use, wherein the measurement device is configured to generate one or more output signals responsive to the detected energy during use; and a processor coupled to the measurement device and configured to determine a first property, a second property, a third property, and a fourth property of the specimen from the one or more output signals during use, wherein the first property comprises an adhesion characteristic of a structure on the upper surface at the specimen, wherein the second property comprises a thickness of the structure, wherein the third property comprises a presence of macro defects on the bottom surface of the specimen, and wherein the fourth property comprises a presence of micro defects on the upper surface of the specimen.