IP Library Granted Patent US 7,943,857
Granted Patent B2
US 7,943,857 · App. 12/015,468 · Granted May 17, 2011

Sliced electromagnetic cage for inductors

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Quick Facts
Patent No.
US 7,943,857
App. No.
12/015,468
Granted
May 17, 2011
Kind
B2
Abstract

A system within a circuit is disclosed. The system comprises a first shield and a device above the first shield. The system also includes a plurality of conductive walls coupled to and extending from the first shield to block electromagnetic (EM) waves to other parts of the circuit. A system and method in accordance with the present invention adds metal walls on the edge of a sliced shield. The walls block the electromagnetic wave from coupling to other parts of the circuit from a sideways direction.

Claims (5)

1. A shielding system on an integrated circuit comprising:

a sliced bottom shield;

an inductor above the sliced bottom shield; and

a plurality of highly conductive sliced walls extending from the sliced bottom shield to block electromagnetic waves from the inductor to other parts of the integrated circuit.

2. The shielding system of claim 1 including a top shield coupled to the extending conductive sliced walls above the inductor for blocking the EM waves.

Assignments (3)
MERGER Recorded May 11, 2016
From: RALINK TECHNOLOGY CORP.
To: MEDIATEK INC.
Reel/Frame 038549/0813 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2009
From: RALINK TECHNOLOGY CORPORATION
To: RALINK TECHNOLOGY CORPORATION
Reel/Frame 022813/0262 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 16, 2008
From: LU, ERIC CHIYUAN
To: RALINK TECHNOLOGY
Reel/Frame 020426/0736 →