公开(公告)号：US20130146886A1

公开(公告)日：2013-06-13

申请号：US13315720

申请日：2011-12-09

申请人： Donald R. Disney ,  Hui Nie ,  Isik C. Kizilyalli ,  Richard J. Brown

发明人： Donald R. Disney ,  Hui Nie ,  Isik C. Kizilyalli ,  Richard J. Brown

IPC分类号： H01L29/808 ,  H01L21/335 ,  H01L29/20

CPC分类号： H01L29/8083 ,  H01L29/0623 ,  H01L29/2003 ,  H01L29/402 ,  H01L29/66446 ,  H01L29/66462 ,  H01L29/66909 ,  H01L29/66924

摘要： A semiconductor structure includes a GaN substrate with a first surface and a second surface. The GaN substrate is characterized by a first conductivity type and a first dopant concentration. A first electrode is electrically coupled to the second surface of the GaN substrate. The semiconductor structure further includes a first GaN epitaxial layer of the first conductivity type coupled to the first surface of the GaN substrate and a second GaN layer of a second conductivity type coupled to the first GaN epitaxial layer. The first GaN epitaxial layer comprises a channel region. The second GaN epitaxial layer comprises a gate region and an edge termination structure. A second electrode coupled to the gate region and a third electrode coupled to the channel region are both disposed within the edge termination structure.

摘要翻译： 半导体结构包括具有第一表面和第二表面的GaN衬底。 GaN衬底的特征在于第一导电类型和第一掺杂剂浓度。 第一电极电耦合到GaN衬底的第二表面。 半导体结构还包括耦合到GaN衬底的第一表面的第一导电类型的第一GaN外延层和耦合到第一GaN外延层的第二导电类型的第二GaN层。 第一GaN外延层包括沟道区。 第二GaN外延层包括栅极区域和边缘端接结构。 耦合到栅极区域的第二电极和耦合到沟道区域的第三电极都设置在边缘端接结构内。

公开(公告)号：US6056098A

公开(公告)日：2000-05-02

申请号：US18188

申请日：1998-02-04

申请人： Richard J. Brown ,  William E. Koch

发明人： Richard J. Brown ,  William E. Koch

IPC分类号： F16D35/02 ,  F16D31/00

CPC分类号： F16D35/024

摘要： A fluid coupling device is disclosed of the type having an output coupling assembly (13) and an input coupling member (11). Control of the flow of viscous fluid between a reservoir chamber (35) and an operating chamber (33) is by rotation of a valve arm (43), to cover or uncover a fill opening (45). Rotation of the valve arm is affected by an actuator assembly (61). A raised portion (79) on a plate (73) attached to an armature (67) biases the valve arm (43) into sealing engagement with a surface (31) which defines a fill port (45,89), thus reducing fluid leakage from the reservoir (35) back into the operating chamber (33). A portion (85) which covers the fill port includes a dimple (91) which is disposed within the fill opening when the valve arm is in its closed position (FIG. 5). As the valve arm begins to move toward its open position (FIG. 6), the dimple (91) causes a camming and axial separation of the valve arm from the adjacent surface, to reduce the undesirable results of viscous drag on the valve arm.

摘要翻译： 公开了一种具有输出联接组件（13）和输入联接构件（11）的流体联接装置。 储存室（35）和操作室（33）之间的粘性流体的流动的控制是通过旋转阀臂（43）来覆盖或露出填充开口（45）。 阀臂的旋转受致动器组件（61）的影响。 附接到电枢（67）上的板（73）上的凸起部分（79）将阀臂（43）偏置成与限定一个填充口（45,89）的表面（31）密封接合，从而减少流体泄漏 从储存器（35）返回到操作室（33）。 覆盖填充口的部分（85）包括当阀臂处于其关闭位置时设置在填充开口内的凹坑（91）（图5）。 当阀臂开始向其打开位置（图6）移动时，凹坑（91）引起阀臂与相邻表面的凸轮和轴向分离，以减少阀臂上粘滞阻力的不期望的结果。

公开(公告)号：US5511643A

公开(公告)日：1996-04-30

申请号：US290265

申请日：1994-08-15

申请人： Richard J. Brown

发明人： Richard J. Brown

IPC分类号： F16D35/02

CPC分类号： F16D35/024

摘要： A fluid coupling device is disclosed including a cover member (11) and an actuator assembly (35) disposed adjacent thereto for actuating a valve member (31). The cover includes an annular fluxring (49), which may be cast into the cover (11) and defines a radially inner surface (57). Extending radially inward from the surface (57) is an annular dovetail portion (59) defining radially outer surfaces (61,63). The cover member includes a cast central portion (55) disposed radially inward of the fluxring (49). As the cast central portion (55) cools, subsequent to casting, it shrinks and seals against the outer surfaces (61,63) of the dovetail (59), because the cover member (11) has a coefficient of thermal contraction which is greater than that of the fluxring (49), thus eliminating the formation of radial clearances between the cast central portion (55) and the inner surface (57) of the fluxring (49).

摘要翻译： 公开了一种流体联接装置，其包括盖构件（11）和与其相邻布置的致动器组件（35），用于致动阀构件（31）。 盖子包括一个环形的焊剂（49），它可以浇注到盖子（11）中并限定一个径向的内表面（57）。 从表面（57）径向向内延伸的是形成径向外表面（61,63）的环形燕尾部分（59）。 盖构件包括设置在助焊剂（49）的径向内侧的铸造中心部（55）。 随着铸造中心部分（55）冷却，在铸造之后，它收缩并密封燕尾（59）的外表面（61,63），因为盖构件（11）具有较大的热收缩系数 （49），从而消除了铸塑中心部分（55）和助焊剂（49）的内表面（57）之间的径向间隙的形成。

公开(公告)号：US5152384A

公开(公告)日：1992-10-06

申请号：US785975

申请日：1991-10-31

申请人： Richard J. Brown

发明人： Richard J. Brown

IPC分类号： F01P7/08 ,  F16D35/00 ,  F16D35/02

CPC分类号： F16D35/024

摘要： A fluid coupling device is provided of the type including an input coupling (11) and an output coupling assembly (13) including a case cover member (17) including a chimney portion (39) and chimney extension (81). The coupling includes a valve plate (31) defining a fluid port (45), and operation of the coupling is controlled in response to the rotational position of the valve arm (43), by means of a valve shaft (41). The position of the valve shaft (41) is controlled, in response to an electrical input signal by means of an actuator assembly (61), which includes an annular steel housing member (63). The housing member is stationary, and is mounted relative to the chimney extension (81) by means of a set of ball bearings (77) which comprise the only bearing support between the actuator assembly (61) and the rotating coupling. As a result of this design, there is no high speed interface between the rotating coupling and the stationary actuator assembly to result in excessive wear, heat generation, and degradation of performance.

公开(公告)号：US4544054A

公开(公告)日：1985-10-01

申请号：US663814

申请日：1984-10-22

申请人： Richard J. Brown

发明人： Richard J. Brown

IPC分类号： F16D1/08 ,  F16D35/00 ,  F16D1/02

CPC分类号： F16D35/00 ,  F16D1/0847 ,  Y10T403/7041

摘要： A fluid coupling (11) is attached to a pulley (25) attached to an input shaft (35) and a hub (33) having a cylindrical opening. The coupling has an output member (11) and an input member rotatably disposed within a viscous fluid chamber to transmit torque from the input member to the output member in response to relative rotation therebetween. The input member includes a shaft (17) having a boss (47) adjacent the rear surface of the output member. The boss defines a cylindrical extension (49) located within the hub opening. A locking "V" groove (51) is located within the hub opening on the extension. Threaded openings (57) are radially disposed within the hub and have center lines off-set with respect to the center line of the "V" groove when the components are assembled. A set screw (59) in each opening has a frusto-conical surface (61) engaged with an angled surface (63) of the "V" groove to draw the coupling and input shafts together. Radial surfaces (55 and 45) perpendicular to the axis A--A of rotation are located on the boss and hub and aid alignment of and securement of the two members. The boss also includes a pilot opening (53) engaged with the input shaft to aid alignment.

摘要翻译： 流体联接器（11）附接到附接到输入轴（35）的滑轮（25）和具有圆柱形开口的轮毂（33）。 联接器具有输出构件（11）和可旋转地设置在粘性流体室内的输入构件，以响应于它们之间的相对旋转而将扭矩从输入构件传递到输出构件。 输入构件包括具有邻近输出构件的后表面的凸台（47）的轴（17）。 凸台限定位于轮毂开口内的圆柱形延伸部（49）。 锁定“V”槽（51）位于延伸部上的轮毂开口内。 当组件组装时，螺纹开口（57）径向地设置在轮毂内并且相对于“V”形槽的中心线偏心的中心线。 每个开口中的固定螺钉（59）具有与“V”槽的倾斜表面（63）接合的截头圆锥形表面（61），以将联接器和输入轴拉到一起。 垂直于旋转轴线A-A的径向表面（55和45）位于凸台和毂上，有助于两个构件的对准和固定。 凸台还包括与输入轴接合以辅助对准的先导开口（53）。