Patent ID: 9704855
Date: 2017-07-11
CPC Classifications: H01L

Claim:
1. A method of integrating at least one passive component and at least one active power device on a same substrate, the method comprising: forming a substrate having a first resistivity value and a first conductivity type associated therewith; forming a low-resistivity region having a second resistivity value and the first conductivity type associated therewith directly in the substrate, without an intervening region of a different conductivity type, the second resistivity value being lower than the first resistivity value; forming the at least one active power device in the low-resistivity region; forming an insulating layer over at least a portion of the at least one active power device; and forming the at least one passive component on an upper surface of the insulating layer above the substrate having the first resistivity value, the at least one passive component being disposed laterally relative to the at least one active power device and electrically connected with the at least one active power device.