IP Library Granted Patent US 8,217,492
Granted Patent B2
US 8,217,492 · App. 12/841,108 · Granted Jul 10, 2012

Inductively coupled integrated circuit with magnetic communication path and methods for use therewith

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Quick Facts
Patent No.
US 8,217,492
App. No.
12/841,108
Granted
Jul 10, 2012
Kind
B2
Abstract

An integrated circuit includes a first integrated circuit die having a first circuit and a first inductive interface and a second integrated circuit die having a second circuit and a second inductive interface. A substrate is coupled to support the first integrated circuit die and the second integrated circuit die, the substrate including a magnetic communication path aligned with the first inductive interface and the second inductive interface, to magnetically communicate signals between the first circuit and the second circuit.

Claims (33)

1. A method comprising:

providing a first inductive interface of a first integrated circuit die and a second inductive interface of a second integrated circuit die in alignment with a magnetic communication path included in a substrate by:

aligning a third coil of the magnetic communication path with a first coil of the first integrated circuit die; and

aligning a fourth coil of the magnetic communication path with a second coil of the first integrated circuit die; and

magnetically communicating signals between a first circuit of the first integrated circuit die and a second circuit of the second integrated circuit die via the first inductive interface and the second inductive interface and via the magnetic communication path.

2. The method of claim 1 further comprising:

bonding the first integrated circuit die to the substrate via a ferromagnetic glue.

3. The method of claim 2 further comprising:

bonding the second integrated circuit die to the substrate via a ferromagnetic glue.

4. The integrated circuit of claim 1 wherein the magnetic communication path includes a ferromagnetic material.

5. The method of claim 1 wherein magnetically communicating signals includes bidirectionally communicating signals between the first circuit and the second circuit.

6. A method comprising:

providing a first inductive interface of a first integrated circuit die and a second inductive interface of a second integrated circuit die in alignment with a magnetic communication path included in a substrate by:

planarly aligning a third coil of the magnetic communication path with a first coil of the first integrated circuit die; and

planarly aligning a fourth coil of the magnetic communication path with a second coil of the first integrated circuit die; and

magnetically communicating signals between a first circuit of the first integrated circuit die and a second circuit of the second integrated circuit die via the first inductive interface and the second inductive interface and via the magnetic communication path.

7. The method of claim 6 further comprising:

bonding the first integrated circuit die to the substrate via a ferromagnetic glue.

8. The method of claim 7 further comprising:

bonding the second integrated circuit die to the substrate via a ferromagnetic glue.

9. The integrated circuit of claim 6 wherein the magnetic communication path includes a ferromagnetic material.

10. The method of claim 6 wherein magnetically communicating signals includes bidirectionally communicating signals between the first circuit and the second circuit.

11. A method comprising:

providing a first inductive interface of a first integrated circuit die and a second inductive interface of a second integrated circuit die in alignment with a magnetic communication path included in a substrate by:

axially aligning a third coil of the magnetic communication path with a first coil of the first integrated circuit die; and

axially aligning a fourth coil of the magnetic communication path with a second coil of the first integrated circuit die; and

magnetically communicating signals between a first circuit of the first integrated circuit die and a second circuit of the second integrated circuit die via the first inductive interface and the second inductive interface and via the magnetic communication path.

12. The method of claim 11 further comprising:

bonding the first integrated circuit die to the substrate via a ferromagnetic glue.

13. The method of claim 12 further comprising:

bonding the second integrated circuit die to the substrate via a ferromagnetic glue.

14. The integrated circuit of claim 11 wherein the magnetic communication path includes a ferromagnetic material.

15. The method of claim 11 wherein magnetically communicating signals includes bidirectionally communicating signals between the first circuit and the second circuit.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 20, 2017
From: ROFOUGARAN, AHMADREZA (REZA)
To: BROADCOM CORPORATION
Reel/Frame 043915/0229 →
MERGER AND CHANGE OF NAME Recorded May 22, 2017
From: FREESCALE SEMICONDUCTOR, INC.; NXP USA, INC.
To: NXP USA, INC.
Reel/Frame 042525/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE ADD OMITTED PAGE 6 OF 22 TO THE ASSIGNMENT AGREEMENT PREVIOUSLY RECORDED AT REEL: 040569 FRAME: 0572. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 28, 2017
From: BROADCOM CORPORATION
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 042108/0597 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Feb 3, 2017
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: BROADCOM CORPORATION
Reel/Frame 041712/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2016
From: BROADCOM CORPORATION
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 040569/0572 →
RELEASE OF SECURITY INTEREST Recorded Sep 30, 2016
From: BANK OF AMERICA N.A., AS COLLATERAL AGENT
To: BROADCOM CORPORATION
Reel/Frame 040192/0701 →
PATENT SECURITY AGREEMENT Recorded Feb 11, 2016
From: BROADCOM CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 037806/0001 →