Inductors for integrated voltage regulators

Patent metadata

Field	Value
Publication number	US-9831198-B2
Application number	US-201313973799-A
Country	US
Kind code	B2
Filing date	Aug 22, 2013
Priority date	Aug 22, 2013
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

An active component of an integrated voltage regulator (IVR) circuit is deployed within an IC device for regulating an operating voltage thereof. An interposer interconnects the IC device with a power source. A passive inductive component of the IVR circuit is deployed upon a surface of the IC device or the interposer. The inductive component has a magnetic core and a winding (e.g., wire-bond), wound about the magnetic core.

First claim

What is claimed is:

1. An electronic assembly, comprising:
an integrated circuit (IC) component; comprising an active element of an integrated voltage regulator (IVR), wherein the IVR is operable to regulate an operating voltage of the IC component; and
an inductor component; comprising a passive element of the IVR and disposed external to the IC component, wherein the inductor component comprises:
a magnetically permeable core mounted on a first surface of the IC component; and
a winding wound about the magnetically permeable core.

2. The electronic assembly as recited in claim 1 wherein the magnetically permeable core comprises a ferrimagnetic material.

3. The electronic assembly as recited in claim 2 wherein the ferrimagnetic material comprises a ferrite.

4. The electronic assembly as recited in claim 1 wherein the winding comprises a wire-bond conductor.

5. The electronic assembly as recited in claim 4 wherein the wire-bond conductor comprises one or more of copper, gold and aluminum.

6. The electronic assembly as recited in claim 4 further comprising conductive pads disposed on the first surface of the IC component, and wherein the wire-bond conductor is coupled to the IC component through the conductive pads.

7. A system comprising:
an integrated circuit (IC) component comprising a first part of an integrated voltage regulator (IVR), wherein the first part is integrated within the IC component, wherein the IVR is configured to regulate an operating voltage of the IC component;
a second part of the IVR coupled to said first part and disposed external of the integrated circuit component, wherein the second part comprises a magnetic core of an inductor, wherein the magnetic core is mounted on a surface of the IC component.

8. The system of claim 7 , wherein the second part further comprises a first winding that is wound about the magnetic core.

9. The system of claim 8 , wherein the magnetic core comprises a ferrimagnetic material, and wherein further the first winding comprises a wire-bond conductor.

10. The system of claim 9 , wherein the wire-conductor is coupled to the IC component through conductive pads on the surface of the IC component.

Assignees

• Nvidia Corp

Inventors

• Zhou Yaping
• Chen Huabo
• Mao Wenjie

Classifications

• H10W72/5453

  connecting between multiple bond pads on a chip, e.g. daisy chain · CPC title

• H10W44/501 Primary

  Inductive arrangements (H10W44/20 takes precedence) · CPC title

• H01F2027/2814

  with only part of the coil or of the winding in the printed circuit board, e.g. the remaining coil or winding sections can be made of wires or sheets · CPC title

• H01F27/2804

  Printed windings · CPC title

• H01F27/24

  Magnetic cores · CPC title