公开(公告)号：US20050245038A1

公开(公告)日：2005-11-03

申请号：US11053721

申请日：2005-02-08

申请人： Douglas Coolbaugh ,  James Dunn ,  Michael Gordon ,  Mohamed Hammad ,  Jeffrey Johnson ,  David Sheridan

发明人： Douglas Coolbaugh ,  James Dunn ,  Michael Gordon ,  Mohamed Hammad ,  Jeffrey Johnson ,  David Sheridan

IPC分类号： H01L21/8222 ,  H01L27/08 ,  H01L29/93 ,  H01L29/94

CPC分类号： H01L27/0811 ,  H01L27/0808 ,  H01L29/93 ,  H01L29/94

摘要： Varactors are provided which have a high tunability and/or a high quality factor associated therewith as well as methods for fabricating the same. One type of varactor disclosed is a quasi hyper-abrupt base-collector junction varactor which includes a substrate having a collector region of a first conductivity type atop a subcollector region, the collector region having a plurality of isolation regions present therein; reach-through implant regions located between at least a pair of the isolation regions; a SiGe layer atop a portion of the substrate not containing a reach-through implant region, the SiGe layer having an extrinsic base region of a second conductivity type which is different from the first conductivity type; and an antimony implant region located between the extrinsic base region and the subcollector region. Another type of varactor disclosed is an MOS varactor which includes at least a poly gate region and a well region wherein the poly gate region and the well region have opposite polarities.

摘要翻译： 提供了具有高可调性和/或与之相关的高品质因素的变形反应器及其制造方法。 公开的一种类型的变容二极管是准超突发的基极 - 集电极结变容二极管，其包括在子集电极区域顶部具有第一导电类型的集电极区域的基板，所述集电极区域中存在多个隔离区域; 位于至少一对隔离区之间的贯穿植入区; 所述SiGe层位于所述衬底的不包含直通注入区域的部分之上，所述SiGe层具有不同于所述第一导电类型的第二导电类型的非本征基区; 以及位于外部基极区域和子集电极区域之间的锑注入区域。 所公开的另一种类型的变容二极管是MOS变容二极管，其至少包括多晶硅栅极区域和阱区域，其中多晶硅栅极区域和阱区域具有相反的极性。

公开(公告)号：US5156079A

公开(公告)日：1992-10-20

申请号：US533482

申请日：1990-06-05

申请人： Aly El-Shiekh ,  Wei Li ,  Mohamed Hammad

发明人： Aly El-Shiekh ,  Wei Li ,  Mohamed Hammad

IPC分类号： D04C3/14

CPC分类号： D04C3/16 ,  D04C3/14

摘要： A yarn carrier apparatus particularly suited for use in braiding machinery or the like due to its capability of continuous yarn feeding and retraction of long lengths of yarn. The yarn carrier apparatus comprises a yarn supply spool which is rotatably mounted within the housing, a spring motor also mounted within the housing and operatively connected to the yarn supply spool through a mechanical transmission assembly which is adapted to multiply rotational movement between the first element of the gear assembly operatively connected to the spring motor and the final element of the gear assembly operatively connected to the yarn supply spool. The spring motor is adapted to tension the yarn during both feeding and retraction thereof, and it is further adapted to periodically rotatably slip within the housing and partially unwind so as to allow for continuous withdrawal of a long length of yarn without the spring motor becoming fully wound and preventing further yarn retraction.

摘要翻译： 一种特别适用于编织机械等的纱线载体装置，由于其能够连续进给和长度缩短的纱线。 纱线载体装置包括可旋转地安装在壳体内的纱线供应卷轴，还安装在壳体内并且通过机械传动组件可操作地连接到纱线供应卷轴的弹簧马达，该机械传动组件适于将第一部件 齿轮组件可操作地连接到弹簧马达，并且齿轮组件的最终元件可操作地连接到纱线供给卷轴。 弹簧马达适于在进给和收缩过程中拉紧纱线，并且还适于在壳体内周期性地旋转滑动并部分展开，以便能够连续地抽出长长度的纱线而不使弹簧马达变得完全 缠绕并防止进一步的纱线收缩。