Patent ID: 6189201
Filing Date: 2001-02-20
Classification: H03J,H05K,Y10T

Abstract:
A method of correcting inductance of an inductive element in a high frequency printed resonance circuit, the inductive element being formed as a generally annular-shaped conductive layer that is printed on a major surface of a dielectric substrate, and having an inner edge defined by a periphery of a hole formed through the conductive layer and the dielectric substrate, said method comprising the steps of:registering a grinding pin with the hole;rotating the grinding pin about a rotational axis perpendicular to the major surface of the dielectric substrate;grinding the inductive element to mechanically remove a portion of the inner edge thereof at the periphery of the hole by movement of the grinding pin;monitoring change in the inductance of the inductive element during said step of grinding the conductive layer; andterminating said step of grinding the conductive layer upon detection of a desired inductance.