Patent ID: 9577023
Date: 2017-02-21
CPC Classifications: H01L

Claim:
1. A method of forming an inductor, the method comprising: forming a first metal wire of the inductor in a first trench in a first dielectric layer of a first inductor level, the first metal wire having a first vertical side and a second vertical side opposite the first vertical side and the first metal wire further having a first width as measured from the first vertical side to the second vertical side, the first metal wire being electrically connected to a lower wire in a lower wiring level through a via, the lower wire of the lower wiring level and the first metal wire of the first inductor level having approximately equal widths and being wider than the via; forming a second dielectric layer of a second inductor level above the first metal wire and the first dielectric layer; forming a second trench that extends vertically through the second dielectric layer and that is partially offset from the first metal wire; and forming a second metal wire of the inductor in the second trench,