Patent ID: 8884442
Filing Date: 2014-11-11
Classification: H01L

Abstract:
1. A method of producing a semiconductor component with a through-contact, comprising: providing a substrate of a semiconductor material with an intermetal dielectric and with a metal plane, which is arranged in the intermetal dielectric and comprises a contact area facing away from the substrate; connecting a base substrate provided with a connection metal plane, which has a contact area and is surrounded by an electrically insulating material, to the substrate on the side of the substrate facing away from the intermetal dielectric, so that the contact area faces the substrate; and forming a contact hole through the intermetal dielectric and the semiconductor material of the substrate, and the contact area of the connection metal plane is exposed in the contact hole, wherein before the production of the contact hole, an opening in the intermetal dielectric is produced by means of a mask provided with an opening in an area of the contact hole, wherein the opening of the mask is enlarged or the mask is replaced by a further mask with a larger opening, so that the contact area facing away from the substrate is located in an area of the larger opening of the mask, wherein the contact hole is produced using the intermetal dielectric as a hard mask, the intermetal dielectric being removed in the area of the larger opening of the mask above the contact area facing away from the substrate, and wherein a metallization is applied, which forms a connection contact on the contact area facing the substrate, a through-contact in the contact hole, and a connection contact on the contact area facing away from the substrate.