Patent ID: 6762447
Filing Date: 2004-07-13
Classification: H01L

Abstract:
A semiconductor body containing at least one semiconductor structure, said semiconductor body comprising:an isolation trench formed in said semiconductor body and having a bottom and sidewalls, said isolation trench enclosing an area of the semiconductor body which contains said semiconductor structure so that the semiconductor structure is electrically isolated from other semiconductor structures that are also contained within the semiconductor body but which are not located within the enclosed area; a lower portion of the isolation trench being at least partly filled with an electrically conductive material, sidewall portions of said electrically conductive material being at least partly separated from the sidewalls of the lower portion of the isolation trench by a first electrical insulator, a lower region of said electrically conductive material being in electrical contact with the semiconductor body at the bottom of said isolation trench; and a remaining portion of the isolation trench being filled with a second electrical insulator.