公开(公告)号：US07462317B2

公开(公告)日：2008-12-09

申请号：US10985825

申请日：2004-11-10

申请人： Ashraf W. Lotfi ,  Mathew Wilkowski ,  John D. Weld

发明人： Ashraf W. Lotfi ,  Mathew Wilkowski ,  John D. Weld

IPC分类号： B29C45/14 ,  H01F27/02

CPC分类号： H01F41/005 ,  H05K3/284 ,  Y10T29/4902 ,  Y10T29/49146 ,  Y10T29/49155

摘要： A method of manufacturing an encapsulated package for a magnetic device on a substrate. In one embodiment, the method includes providing a magnetic core on the substrate and placing a shielding structure over the magnetic core to create a chamber thereabout. The method also includes depositing an encapsulant about a portion of the magnetic core within the chamber. The shielding structure limits the encapsulant entering the chamber.

摘要翻译： 一种制造用于衬底上的磁性器件的封装封装的方法。 在一个实施例中，该方法包括在衬底上提供磁芯并将屏蔽结构放置在磁芯上方以在其周围形成腔室。 该方法还包括在腔室内围绕磁芯的一部分沉积密封剂。 屏蔽结构限制了进入腔室的密封剂。

公开(公告)号：US06975788B2

公开(公告)日：2005-12-13

申请号：US10314768

申请日：2002-12-09

申请人： Nagesh R. Basavanhally ,  Mark A. Paczkowski ,  Hong Tang ,  John D. Weld

发明人： Nagesh R. Basavanhally ,  Mark A. Paczkowski ,  Hong Tang ,  John D. Weld

IPC分类号： G02B6/35 ,  G02B6/32

CPC分类号： G02B6/3582 ,  G02B6/3512 ,  G02B6/3558

摘要： An optical switch has an array of fibers, an optional lens, and a mirror with two-dimensional tilt adjustment. Light from the array passes through the lens, is reflected by the mirror, and passes again through the lens back towards the array. The input/output fibers are arranged in a two-dimensional pattern designed to avoid undesirable crosstalk between fibers. The pattern may include a plurality of fibers positioned around a central fiber in a circular arrangement. For a 1×8 or 8×1 switch, nine fibers are preferably positioned in a circle around the central fiber, thereby providing geometry that substantially avoids undesirable crosstalk between fibers in the array. In another implementation, the fiber array is implemented using a tapered ferrule housing a central fiber, surrounded by an intermediate layer of six fibers, surrounded by an outer layer of twelve fibers.

摘要翻译： 光学开关具有纤维阵列，可选镜头和具有二维倾斜调节的镜子。 来自阵列的光通过透镜，被镜子反射，并再次通过透镜返回阵列。 输入/输出光纤布置成二维图案，设计用于避免纤维之间不期望的串扰。 该图案可以包括以圆形布置围绕中心纤维定位的多根纤维。 对于1x8或8x1开关，优选地将九个光纤定位在围绕中心光纤的圆周中，从而提供基本避免阵列中的纤维之间不期望的串扰的几何形状。 在另一实施方案中，纤维阵列使用容纳中心纤维的锥形套圈来实现，所述中心纤维由六根纤维的中间层包围，被十二根纤维的外层包围。

公开(公告)号：US5925827A

公开(公告)日：1999-07-20

申请号：US938619

申请日：1997-09-25

申请人： Ashraf W. Lotfi ,  John D. Weld

发明人： Ashraf W. Lotfi ,  John D. Weld

IPC分类号： G01B7/24 ,  G01B7/16

CPC分类号： G01B7/24

摘要： A system for, and method of, empirically determining stress in a molded package and a power module embodying the system or the method. In one embodiment, the system includes: (1) a sensor, having a magnetic core exhibiting a known complex permeability in a control environment, that is embedded within the molded package and therefore subject to the stress and (2) a measurement circuit, coupled to the sensor, that applies a drive signal to the sensor, measures a response signal received from the sensor and uses the drive signal and the response signal to determine a complex permeability under stress of the core. The magnitude of the stress can then be determined from the core's complex permeability under stress.

摘要翻译： 经验地确定模制包装中的应力的系统和方法以及体现该系统或方法的功率模块。 在一个实施例中，系统包括：（1）传感器，其具有在控制环境中呈现已知复合磁导率的磁芯，其嵌入在模制封装内并因此受到应力的影响，以及（2）测量电路 对传感器施加驱动信号给传感器，测量从传感器接收到的响应信号，并使用驱动信号和响应信号来确定芯的应力下的复数磁导率。 然后可以从应力下的核心复合渗透率确定应力的大小。

公开(公告)号：US08528190B2

公开(公告)日：2013-09-10

申请号：US12196062

申请日：2008-08-21

申请人： Ashraf W. Lotfi ,  Mathew Wilkowski ,  John D. Weld

发明人： Ashraf W. Lotfi ,  Mathew Wilkowski ,  John D. Weld

IPC分类号： H01F7/128

CPC分类号： H01F41/005 ,  H01F17/043 ,  H01F27/027 ,  H01F27/255 ,  H01F27/365 ,  H05K3/284 ,  Y10T29/49002 ,  Y10T29/4902 ,  Y10T29/49069 ,  Y10T29/49073 ,  Y10T29/4913 ,  Y10T29/49146 ,  Y10T29/49155 ,  Y10T29/49171

摘要： A method of manufacturing a power module on a substrate. In one embodiment, the method includes providing power conversion circuitry including providing a magnetic device having a magnetic core and at least one switch on the substrate. The method also includes placing a shielding structure with a baffle over the magnetic core to create a chamber thereabout. The method also includes depositing an encapsulant about the power conversion circuitry. The shielding structure limits the encapsulant entering the chamber and the baffle directs the encapsulant away from the magnetic core thereby limiting an amount of the encapsulant that contacts the magnetic core within the chamber.

摘要翻译： 一种在基板上制造功率模块的方法。 在一个实施例中，该方法包括提供功率转换电路，包括提供具有磁芯和至少一个开关的磁性装置。 该方法还包括将具有挡板的屏蔽结构放置在磁芯上以在其周围形成腔室。 该方法还包括在功率转换电路周围沉积密封剂。 屏蔽结构限制了进入腔室的密封剂，并且挡板将密封剂引导离开磁芯，从而限制了在腔室内接触磁芯的密封剂的量。

公开(公告)号：US20100176905A1

公开(公告)日：2010-07-15

申请号：US12731921

申请日：2010-03-25

申请人： Ashraf W. Lotfi ,  Mathew A. Wilkowski ,  Trifon M. Liakopoulos ,  John D. Weld

发明人： Ashraf W. Lotfi ,  Mathew A. Wilkowski ,  Trifon M. Liakopoulos ,  John D. Weld

IPC分类号： H01F5/00

CPC分类号： H01F17/04 ,  H01F2027/2814 ,  H01L25/16 ,  H01L2224/37147 ,  H01L2224/40245 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49175 ,  H01L2924/00011 ,  H01L2924/01015 ,  H01L2924/01047 ,  H01L2924/10253 ,  H01L2924/181 ,  H01L2924/19105 ,  H02M3/00 ,  H01L2924/00 ,  H01L2924/00014 ,  H01L2924/00012 ,  H01L2924/01033

摘要： A magnetic device that includes a magnetic core having a surface facing a conductive substrate. The magnetic device also includes a conductive clip facing a surface of the magnetic core with ends of the conductive clip electrically coupled to the conductive substrate to cooperatively form a winding therewith about the magnetic core.

摘要翻译： 一种磁性装置，其包括具有面向导电基板的表面的磁芯。 磁性装置还包括面向磁芯的表面的导电夹，导电夹的端部电耦合到导电衬底，以协同地形成围绕磁芯的绕组。

公开(公告)号：US07688172B2

公开(公告)日：2010-03-30

申请号：US11244127

申请日：2005-10-05

申请人： Ashraf W. Lotfi ,  Mathew A. Wilkowski ,  Trifon M. Liakopoulos ,  John D. Weld

发明人： Ashraf W. Lotfi ,  Mathew A. Wilkowski ,  Trifon M. Liakopoulos ,  John D. Weld

IPC分类号： H01F5/00

CPC分类号： H01F17/04 ,  H01F2027/2814 ,  H01L25/16 ,  H01L2224/37147 ,  H01L2224/40245 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49175 ,  H01L2924/00011 ,  H01L2924/01015 ,  H01L2924/01047 ,  H01L2924/10253 ,  H01L2924/181 ,  H01L2924/19105 ,  H02M3/00 ,  H01L2924/00 ,  H01L2924/00014 ,  H01L2924/00012 ,  H01L2924/01033

摘要： A magnetic device that includes a magnetic core having a surface facing a conductive substrate. The magnetic device also includes a conductive clip facing a surface of the magnetic core with ends of the conductive clip electrically coupled to the conductive substrate to cooperatively form a winding therewith about the magnetic core.

摘要翻译： 一种磁性装置，其包括具有面向导电基板的表面的磁芯。 磁性装置还包括面向磁芯的表面的导电夹，导电夹的端部电耦合到导电衬底，以协同地形成围绕磁芯的绕组。

公开(公告)号：US5578261A

公开(公告)日：1996-11-26

申请号：US289327

申请日：1994-08-11

申请人： Louis T. Manzione ,  John D. Weld

发明人： Louis T. Manzione ,  John D. Weld

IPC分类号： B29C45/18 ,  B29C45/14 ,  B29C45/26 ,  H01L21/52 ,  H01L21/56 ,  H05K3/28 ,  B29C33/10 ,  B29C70/70

CPC分类号： B29C45/14655 ,  B29C45/2669 ,  H05K3/284 ,  Y10S425/812

摘要： Reservoir cavities have been used successfully to achieve proper mold filling of large area substrate packages with severe leading and lagging of flow fronts in the cavity halves, The additional plastic required to fill the reservoir cavities and the additional work in removing the reservoir culls is minimal, Reservoir cavities have been shown to eliminate void problems in molded packages with large printed wiring board substrates,

摘要翻译： 已经成功地使用了储层空腔来实现大面积衬底封装的适当模具填充，其中腔半部分的流动前沿具有严重的前沿和滞后。填充储层空腔所需的额外的塑料和除去储存器剔除件的额外的工作是最小的， 已经显示了储库空腔消除了具有大型印刷线路板基板的模制封装中的空隙问题，

公开(公告)号：US08701272B2

公开(公告)日：2014-04-22

申请号：US11243787

申请日：2005-10-05

申请人： Ashraf W. Lotfi ,  Mathew A. Wilkowski ,  Trifon M. Liakopoulos ,  John D. Weld

发明人： Ashraf W. Lotfi ,  Mathew A. Wilkowski ,  Trifon M. Liakopoulos ,  John D. Weld

IPC分类号： H01F27/30 ,  H01L23/495

CPC分类号： H01F27/2847 ,  H01F17/04 ,  H01F2027/2814 ,  H01L23/495 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L25/16 ,  H01L2224/45144 ,  H01L2224/45147 ,  H01L2224/48247 ,  H01L2224/49052 ,  H01L2224/49096 ,  H01L2224/49171 ,  H01L2224/49175 ,  H01L2924/00011 ,  H01L2924/00014 ,  H01L2924/01015 ,  H01L2924/01047 ,  H01L2924/10253 ,  H01L2924/14 ,  H01L2924/19105 ,  H01L2924/19107 ,  H02M3/00 ,  Y10T29/4902 ,  Y10T29/49073 ,  Y10T29/49076 ,  Y10T29/49121 ,  Y10T29/49146 ,  H01L2924/00 ,  H01L2224/05599 ,  H01L2924/01033

摘要： A method of forming a power module located on a conductive substrate by providing power conversion circuitry. The method of providing the power conversion circuitry includes forming a magnetic device by placing a magnetic core proximate a conductive substrate with a surface thereof facing a conductive substrate, and placing a conductive clip proximate a surface of the magnetic core. The method of forming the magnetic device also includes electrically coupling ends of the conductive clip to the conductive substrate to cooperatively form a winding therewith about the magnetic core. The method of providing the power conversion circuitry also includes providing at least one switch on the conductive substrate. The method of forming the power module also includes depositing an encapsulant about the power conversion circuitry.

摘要翻译： 一种通过提供电力转换电路形成位于导电衬底上的功率模块的方法。 提供功率转换电路的方法包括通过将磁芯靠近导电衬底形成磁性器件，导电衬底的表面面向导电衬底，并将导电夹子放置在靠近磁芯的表面。 形成磁性器件的方法还包括将导电夹子的端部电耦合到导电衬底，以协同地形成围绕磁芯的绕组。 提供功率转换电路的方法还包括在导电衬底上提供至少一个开关。 形成功率模块的方法还包括在电力转换电路周围沉积密封剂。

公开(公告)号：US08384506B2

公开(公告)日：2013-02-26

申请号：US12731921

申请日：2010-03-25

申请人： Ashraf W. Lotfi ,  Mathew A. Wilkowski ,  Trifon M. Liakopoulos ,  John D. Weld

发明人： Ashraf W. Lotfi ,  Mathew A. Wilkowski ,  Trifon M. Liakopoulos ,  John D. Weld

IPC分类号： H01F5/00 ,  H01F27/28 ,  H01L23/495 ,  H01L21/8234

CPC分类号： H01F17/04 ,  H01F2027/2814 ,  H01L25/16 ,  H01L2224/37147 ,  H01L2224/40245 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49175 ,  H01L2924/00011 ,  H01L2924/01015 ,  H01L2924/01047 ,  H01L2924/10253 ,  H01L2924/181 ,  H01L2924/19105 ,  H02M3/00 ,  H01L2924/00 ,  H01L2924/00014 ,  H01L2924/00012 ,  H01L2924/01033

摘要： A magnetic device that includes a magnetic core having a surface facing a conductive substrate. The magnetic device also includes a conductive clip facing a surface of the magnetic core with ends of the conductive clip electrically coupled to the conductive substrate to cooperatively form a winding therewith about the magnetic core.

摘要翻译： 一种磁性装置，其包括具有面向导电基板的表面的磁芯。 磁性装置还包括面向磁芯的表面的导电夹，导电夹的端部电耦合到导电衬底，以协同地形成围绕磁芯的绕组。

公开(公告)号：US07426780B2

公开(公告)日：2008-09-23

申请号：US10985150

申请日：2004-11-10

申请人： Ashraf W. Lotfi ,  Mathew Wilkowski ,  John D. Weld

发明人： Ashraf W. Lotfi ,  Mathew Wilkowski ,  John D. Weld

IPC分类号： H01F7/128

CPC分类号： H01F41/005 ,  H01F17/043 ,  H01F27/027 ,  H01F27/255 ,  H01F27/365 ,  H05K3/284 ,  Y10T29/49002 ,  Y10T29/4902 ,  Y10T29/49069 ,  Y10T29/49073 ,  Y10T29/4913 ,  Y10T29/49146 ,  Y10T29/49155 ,  Y10T29/49171

摘要： A method of manufacturing a power module on a substrate. In one embodiment, the method includes providing power conversion circuitry including providing a magnetic device having a magnetic core and at least one switch on the substrate. The method also includes placing a shielding structure over the magnetic core to create a chamber thereabout. The method also includes depositing an encapsulant about the power conversion circuitry. The shielding structure limits the encapsulant entering the chamber thereby allowing the encapsulant to surround a portion of the magnetic core within the chamber.

摘要翻译： 一种在基板上制造功率模块的方法。 在一个实施例中，该方法包括提供功率转换电路，包括提供具有磁芯和至少一个开关的磁性装置。 该方法还包括将屏蔽结构放置在磁芯上方以在其周围形成腔室。 该方法还包括在功率转换电路周围沉积密封剂。 屏蔽结构限制了进入腔室的密封剂，从而允许密封剂围绕室内的磁芯的一部分。