Apple patents shield design to stop electronic parts from interfering
Apple has filed a patent for a specific way to build electromagnetic interference shields inside electronic devices. The design uses a conductive layer, extra traces, and small bumps to create a loop that cancels out unwanted signals between sensitive parts.
In the filing’s own words
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.
What exactly they claim (claim 1)
1. 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.
Facts
- Company
- Apple (Apple Inc.)
- Official title
- Electromagnetic Interference Shield
- Publication number
- US20260291459A1
- Application number
- 19088956
- Filed
- Mar 24, 2025
- Published
- Sep 24, 2026
- Inventors
- 5
- Claims
- 20
Classified under
H03H 1/0007 Electricity & electronicsH03H 7/0115 Electricity & electronicsH03H 2001/0085 Electricity & electronicsMore from Apple in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.