Patent ID: 6661078
Filing Date: 2003-12-09
Classification: H01F,H01L

Abstract:
An inductance element comprising an inductance section, provided above a semiconductor substrate via insulating films, which is composed of a first conductive film pattern setted to have a predetermined inductance value,wherein an impurity region, which has a grounding potential and a denser impurity than that of the semiconductor substrate, is integrated with the semiconductor substrate so as to be positioned at least at an area under the first conductive film pattern and in a surface of the semiconductor substrate so that the surface of the semiconductor substrate is flat, and wherein the impurity region is electrically connected to a second conductive film pattern, provided above the impurity region via one of the insulting films, which is grounded, and the second conductive film pattern is provided so as not to be positioned at the area under the first conductive film pattern.