Patent ID: 7084047
Filing Date: 2006-08-01
Classification: H01L

Abstract:
1. A method for producing individual monolithically integrated semiconductor circuit arrangements from a water composite substrate comprising the following steps: (a) forming a plurality of separate component structures comprising monolithic semiconductor circuits and conductive surfaces on a front face surface of a wafer; (b) covering the front face surface of the wafer with a protective layer to form a wafer composite substrate; (c) attaching the water to a support via an attachment layer applied over the support; (d) reducing the substrate to a selected thickness; (e) producing passage holes through the substrate up to the conductive surfaces on the front face surface; (f) producing separating trenches between the monolithic semiconductor circuits up to or into the attachment layer, including removal of the protective layer under the separating trenches and lateral under-etching of the substrate; (g) depositing a back face metallization on a back face of the substrate and forming electrical connections through the passage holes; and (h) individually releasing the semiconductor circuits from the support for further individual processing.