US 12,113,095 B2 · Planar inductor and semiconductor chip

Abstract

This application discloses a planar inductor. The planar inductor includes a first inductor module and a second inductor module that are connected in parallel. A direction of a magnetic line of the first inductor module is opposite to a direction of a magnetic line of the second inductor module, so that the magnetic lines can form a self-close loop in the planar inductor, and impact of a far magnetic field generated by the inductor on the outside, especially a nearby inductor, can be greatly reduced, thereby reducing crosstalk between the inductors, that is, reducing a phase noise, and increasing a Q value of the inductor. In addition, this application further provides a semiconductor chip that includes the planar inductor.

Claims14

Dependent claims

An inductor device, comprising:

a signal input end, a signal output end, a first inductor, and a second inductor,
wherein the inductor device is disposed in a semiconductor chip,
wherein at least one of the first inductor or the second inductor comprises two or more metal layers of the semiconductor chip,
wherein the first inductor and the second inductor are disposed at a metal layer of the two or more metal layers,
wherein cross-sectional shapes of the first inductor and the second inductor at the metal layer are closed patterns each with an opening,
wherein the closed patterns formed by the first inductor and the second inductor are fastened to each other with openings facing each other, and
wherein the first inductor and the second inductor are connected in parallel between the signal input end and the signal output end.

4 more elements

Dependencies are inferred from the claim text.

Planar inductor and semiconductor chip

Life of this patent

Planar inductor and semiconductor chip

Life of this patent

Abstract

Claims14