Patent ID: 8847365

Claim:
A method of forming an integrated inductor comprising: providing a first substrate; etching a pattern of holes part way through the first substrate from a first surface of the first substrate; filling the holes with a conductive material; depositing and patterning a first conductive layer on the first surface of the first substrate to electrically connect the conductive material in pairs of holes; temporarily gluing a carrier to the first surface of the first substrate; thinning the entire first substrate from a second surface opposite the first surface to expose ends of the conductor filling the holes; electrically connecting a patterned second conductive layer on a second substrate to the exposed ends of the conductive material filling at least some of the holes in the first substrate to electrically connect the patterned second conductive layer, the conductive material filling the at least some of the holes and the patterned first conductive layer to form an electrically conductive coil.