US Patent No: 6,459,352

Number of patents in Portfolio can not be more than 2000

On-chip transformers

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Abstract

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In an exemplary embodiment of the disclosed transformer, the transformer comprises a dielectric area. For example, the dielectric area can consist of three different dielectric layers. Also, by way of example, the dielectric area can comprise silicon dioxide or a low-k dielectric. According to the exemplary embodiment, the dielectric area is interspersed with a permeability conversion material. The permeability conversion material has a permeability higher than the permeability of the dielectric area. For example, the permeability conversion material can be nickel, iron, nickel-iron alloy, or magnetic oxide. The exemplary embodiment further comprises a first conductor and also a second conductor patterned into the dielectric area. The first and/or the second conductor can comprise copper, aluminum, or a copper-aluminum alloy. Each of the first and second conductors are made up of a number of turns which result in, respectively, the primary and secondary windings of the exemplary disclosed transformer.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SKYWORKS SOLUTIONS, INC.NEWPORT BEACH, CA626

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Howard, David Sparks, NV 56 267
Liu, Q Z Irvine, CA 9 71

Cited Art Landscape

Patent Info (Count) # Cites Year
 
NEWPORT FAB, LLC (1)
6,417,755 Method for fabrication of high inductance inductors and related structure 9 2000
 
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. (1)
6,309,944 Overlay matching method which eliminates alignment induced errors and optimizes lens matching 9 2000

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
MENTOR GRAPHICS CORPORATION (4)
8,161,438 Determining mutual inductance between intentional inductors 2 2006
8,549,449 Mutual inductance extraction using dipole approximations 0 2009
8,214,788 High-frequency VLSI interconnect and intentional inductor impedance extraction in the presence of a multi-layer conductive substrate 2009
8,650,522 Determining mutual inductance between intentional inductors 0 2012
 
MICRON TECHNOLOGY, INC. (4)
7,388,462 Integrated circuit inductors 11 2002
7,158,004 Integrated circuit inductors 10 2002
6,976,300 Integrated circuit inductors 4 2002
6,948,230 Integrated circuit inductors 5 2002
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (3)
6,975,199 Embedded inductor and method of making 6 2001
6,931,712 Method of forming a dielectric substrate having a multiturn inductor 3 2004
7,288,417 On-chip signal transformer for ground noise isolation 0 2005
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
6,856,003 Microelectronic 3-D solenoid of circular cross-section and method for fabrication 1 2002

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