发明名称 On-chip transformers
摘要 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.
申请公布号 US2002105406(A1) 申请公布日期 2002.08.08
申请号 US20010779402 申请日期 2001.02.08
申请人 CONEXANT SYSTEMS, INC. 发明人 LIU Q.Z.;HOWARD DAVID J.
分类号 H01F17/00;H01F27/28;H01F41/04;(IPC1-7):H01F5/00 主分类号 H01F17/00
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