Patent ID: 6559003
Filing Date: 2003-05-06
Classification: H01L

Abstract:
A method of producing a semiconductor component, which comprises:a) forming a switching transistor having a source region and a drain region on a semiconductor substrate; b) embedding a first barrier layer in an insulating layer and applying the insulating layer to the switching transistor; b1) etching a contact hole into the insulating layer as far as one of the source and the drain regions of the switching transistor; b2) filling the contact hole with a conductive material; c) forming a storage capacitor of a lower electrode, an upper electrode and a metal-oxide-containing layer deposited between the lower and upper electrodes, applying the storage capacitor to the insulating layer and connecting the switching transistor to the storage capacitor by applying the lower electrode over the contact hole; d) removing the insulating layer to a certain depth outside the storage capacitor in a vertical etching step, while exposing the first barrier layer to the outside; and e) applying a second barrier layer to the storage capacitor, to the insulating layer and to the first barrier layer.