Patent ID: 8357944

Claim:
A semiconductor substrate, wherein an electrically conductive connection is guided through the semiconductor substrate from its front side to its rear side; and the electrically conductive connection is outwardly completely surrounded by an insulator; wherein the insulator is formed with an opening which is guided through the semiconductor substrate and is filled with a material, wherein the inner wall of the opening is provided with a dielectric coating and/or the opening is filled with an electrically insulating or conductive material; the electrically conductive connection is formed with at least one further opening which is arranged in the interior of the insulator through the semiconductor substrate and is filled with an electrically conductive material, characterized in that the openings ( 2 , 3 ) have step-free inner walls which are aligned orthogonally to the front side or taper continuously in the direction toward the rear side, starting from the front side of the semiconductor substrate ( 1 ) up to the rear side.