Patent ID: 8044757

Claim:
An electronic device comprising: a low temperature cofired ceramic (LTCC) inductor including: a first sheet disposed on a substrate and including a first conductive pattern; a second sheet disposed on the first sheet and including a second conductive pattern; and a via electrically connecting the first conductive pattern to the second conductive pattern; and a spacer disposed on a lower surface of the first sheet to provide an air gap between the substrate and the first sheet, wherein the first conductive pattern is exposed out of the lower surface of the first sheet, wherein the first conductive pattern comprises an input conductive line, a first conductive line, and an output conductive line, an input terminal electrically connected to the input conductive line, and an output terminal electrically connected to the output conductive line, wherein the spacer includes an input spacer and an output spacer, the input terminal is electrically connected to the substrate through the input spacer that comes in physical and electrical contact with the input terminal, and the output terminal is electrically connected to the substrate through the output spacer that comes in physical and electrical contact with the output terminal, wherein the first conductive line is spaced apart from a top surface of the substrate, without being in physical contact with the spacer; and wherein an upper surface of the substrate is recessed to form an air cavity.