Patent ID: 7056801

Claim:
A method for manufacturing a radio frequency integrated circuit, comprising the steps of: manufacturing a first substrate by the sub-steps of: forming a seed layer and a sacrificial protection film on one side of an insulator substrate; forming inductor patterns by partially etching the insulator substrate to expose the seed layer; forming an inductor by filling an inductor formation material in the inductor patterns; forming a passivation layer on the other side of the insulator substrate; and removing the sacrificial protection film and the seed layer; manufacturing a second substrate by the sub-steps of: providing a semiconductor substrate on which an element layer has been formed; forming an inductor coupling line on the element layer; forming an interlayer insulation layer over the resulting structure including the inductor coupling line; forming first and second via contact plugs coupled to the inductor coupling line, by partially etching the interlayer insulation layer and filling a conductive layer; and forming an input/output pad coupled to the second via contact plug on the interlayer insulation layer; and bonding the first substrate onto the second substrate.