US 2026/0291459 A1 · Electromagnetic Interference Shield

Abstract

This disclosure is directed to electromagnetic interference (EMI) shields of circuitry with electromagnetic sensitive components. The circuitry may include electromagnetic sensitive components and EMI shields. The EMI shields may include multiple components to attenuate EMI signals and reduce undesired EMI and/or interactions between the electromagnetic sensitive components. The EMI shields may include a shield layer, auxiliary trace and bumps, and/or guard rings. The shield layer may include a conductive layer overlaid on the on the electromagnetic sensitive components. The auxiliary trace and auxiliary bumps may form an enclosed conductive loop with the shield layer between two components (e.g., electromagnetic sensitive components) of the circuitry. The conductive loop may attenuate EMI signals between the electromagnetic sensitive components by generating magnetic fields in an opposite direction compared to at least a portion of the EMI signals.

Claims20

Dependent claims

An electronic device comprising:

a first component disposed on a first circuit layer;
a second component disposed on the first circuit layer;
an auxiliary trace disposed between the first component and the second component on the first circuit layer;
a first bump coupled to an end of the auxiliary trace on the first circuit layer and coupled to a shield layer on a second circuit layer;
a second bump coupled to another end of the auxiliary trace on the first circuit layer and coupled to the shield layer on the second circuit layer;
and
the shield layer overlaid on the first component, the second component, the auxiliary trace, the first bump, and the second bump on the second circuit layer.

4 more elements

Dependencies are inferred from the claim text.

Electromagnetic Interference Shield

Life of this patent

Electromagnetic Interference Shield

Life of this patent

Abstract

Claims20