Patent ID: 6384706
Filing Date: 2002-05-07
Classification: H01F,H05K

Abstract:
An inductor device comprising a first spiral-shaped interconnection structure extending in a first power source layer and second spiral-shaped interconnection structure extending in a second power source layer, the power source layers being in first and second levels, respectively, of a multilayer printed board, said first and second spiral-shaped interconnection structures each having a center portion,the multilayer printed board having a first high frequency current loop with a first loop area and a second high frequency current loop with a second loop area that is larger than said first loop area, said first high frequency current loop and said second high frequency current loop sharing part of a common current path, said first high frequency current loop having a first current path including one of said first and second power source layers and excluding said inductor device and another one of said first and second power source layers, said second high frequency current loop having a second current path including said first and second power source layers and said inductor.