Patent ID: 7349106
Filing Date: 2008-03-25
Classification: H01L

Abstract:
1. An apparatus for thin-layer metrology of semiconductor substrates, comprising: at least one cassette element for the semiconductor substrates, a first measurement unit for thin-layer micrometrology, a transport mechanism being provided between the cassette element for the semiconductor substrates and the first measurement unit for thin-layer micrometrology, and a measurement unit for thin-layer macrometrology, wherein the measurement unit for thin-layer macrometrology is positioned in a region of the transport mechanism, after the cassette element and before the first measurement unit for thin-layer micrometrology such that the semiconductor substrates are guided from the cassette element beneath the measurement unit for thin-layer macrometrology to the first measurement unit for thin-layer micrometrology, wherein the measurement unit for thin-layer macrometrology projects a line of light onto the semiconductor substrates and acquires an image of an entire surface of each substrate during the guidance of the semiconductor substrates from the cassette element to the first measurement unit for thin-layer micrometrology.