Apparatus and method for wafer level fabrication of high value inductors on semiconductor integrated circuits
    13.
    发明授权
    Apparatus and method for wafer level fabrication of high value inductors on semiconductor integrated circuits 有权
    用于在半导体集成电路上制造高价值电感器的晶片级的装置和方法

    公开(公告)号:US07897472B2

    公开(公告)日:2011-03-01

    申请号:US12624259

    申请日:2009-11-23

    IPC分类号: H01L21/20

    摘要: Methods for forming multiple inductors on a semiconductor wafer are described. A plating layer and a photoresist layer are applied over a semiconductor wafer. Recess regions are etched in the photoresist layer using photolithographic techniques, which exposes portions of the underlying plating layer. Metal is electroplated into the recess regions in the photoresist layer to form multiple magnetic core inductor members. A dielectric insulating layer is applied over the magnetic core inductor members. Additional plating and photoresist layers are applied over the dielectric insulating layer. Recess regions are formed in the newly applied photoresist layer. Electroplating is used to form inductor windings in the recess regions. Optionally, a magnetic paste can be applied over the inductor coils.

    摘要翻译: 描述了在半导体晶片上形成多个电感器的方法。 将镀层和光致抗蚀剂层施加在半导体晶片上。 使用光刻技术在光致抗蚀剂层中蚀刻凹陷区域,其暴露下面的镀层的部分。 将金属电镀到光致抗蚀剂层的凹陷区域中以形成多个磁芯电感器构件。 介质绝缘层施加在磁芯电感器部件上。 在电介质绝缘层上施加附加的电镀和光致抗蚀剂层。 在新施加的光致抗蚀剂层中形成凹陷区域。 电镀用于在凹陷区域形成电感线圈。 可选地,可以在电感线圈上施加磁性糊。

    Method of Batch Trimming Circuit Elements
    15.
    发明申请
    Method of Batch Trimming Circuit Elements 有权
    批量修剪电路元件的方法

    公开(公告)号:US20120161294A1

    公开(公告)日:2012-06-28

    申请号:US12978492

    申请日:2010-12-24

    摘要: Multiple wafers that each has multiple high-precision circuits and corresponding trim control circuits are batch trimmed in a process where each wafer is formed to include openings that expose trimmable circuit elements that are internal to the circuitry of the high-precision circuits. The high-precision circuits and trim control circuits are electrically activated during the trimming phase by metal traces that run along the saw streets. The method attaches a wafer contact structure to each wafer to electrically activate the metal traces. The method places the wafers with the wafer contact structures into a solution where the exposed trimmable circuit elements are electroplated or anodized when the actual output voltage of a high-precision circuit does not match the predicted output voltage of the high-precision circuit.

    摘要翻译: 在每个晶片被形成为包括暴露高精度电路的电路内部的可调节电路元件的开口的过程中,每个具有多个高精度电路和相应的微调控制电路的多个晶片被批量修整。 高精度电路和微调控制电路在修整阶段通过沿着锯木街道行进的金属轨迹进行电激活。 该方法将晶片接触结构连接到每个晶片以电激活金属迹线。 该方法将具有晶片接触结构的晶片放置在当高精度电路的实际输出电压与高精度电路的预测输出电压不匹配时,暴露的可调节电路元件被电镀或阳极化的解决方案中。

    On-chip power inductor
    17.
    发明授权
    On-chip power inductor 有权
    片上功率电感

    公开(公告)号:US07875955B1

    公开(公告)日:2011-01-25

    申请号:US11713921

    申请日:2007-03-05

    IPC分类号: H01L27/08

    摘要: An on-chip inductor structure for a DC-DC power regulator circuit merges the switching transistor metallization with the inductor. Thick top level conductor metal that is used to strap the transistor array and to lower its on-state resistance is also used to extend the power inductor into the transistor array. Thus, the structure includes three basic components: a power inductor that spirals around the transistor array, the transistor array itself, and the transistor array metallization that is used to form a distributed inductance situated over the transistor array.

    摘要翻译: 用于DC-DC功率调节器电路的片上电感器结构将开关晶体管金属化与电感器并入。 用于绑定晶体管阵列并降低其导通电阻的厚顶级导体金属也用于将功率电感器扩展到晶体管阵列中。 因此,该结构包括三个基本部件:围绕晶体管阵列螺旋的功率电感器,晶体管阵列本身以及用于形成位于晶体管阵列上方的分布式电感器的晶体管阵列金属化。

    Inductor-based MEMS microphone
    18.
    发明授权
    Inductor-based MEMS microphone 有权
    基于电感的MEMS麦克风

    公开(公告)号:US07239712B1

    公开(公告)日:2007-07-03

    申请号:US10874451

    申请日:2004-06-23

    IPC分类号: H04R9/00

    CPC分类号: H04R19/005 H04R19/04

    摘要: An inductor-based integrated MEMS microphone and a method of making the microphone is provided. The microphone structure includes a vibrating inductor that is suspended over another stationary inductor such that the magnetic field induced from one inductor induces an electrical potential across the other. The stationary inductor is embedded in a dielectric material that is etched out over the stationary inductor to provide the cavity over which the vibrating inductor is suspended.

    摘要翻译: 提供基于电感器的集成MEMS麦克风和制造麦克风的方法。 麦克风结构包括悬挂在另一个固定电感器上的振动电感器,使得从一个电感器感应出的磁场引起跨越另一电感器的电位。 固定电感器被嵌入介电材料中,该绝缘材料在静电感应器上蚀刻出来,以提供振动电感器悬挂在其上的空腔。