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1. 发明授权

US08790527B1 Method and system for manufacturing tapered waveguide structures in an energy assisted magnetic recording head 有权
标题翻译：在能量辅助磁记录头中制造锥形波导结构的方法和系统
公开(公告)号：US08790527B1
公开(公告)日：2014-07-29
申请号：US13069023
申请日：2011-03-22
申请人： Guanghong Luo , Ming Jiang , Danning Yang , Yunfei Li
发明人： Guanghong Luo , Ming Jiang , Danning Yang , Yunfei Li
IPC分类号： H01L21/302 , H01L21/461 , B29D11/00 , C03C15/00 , C03C25/68
CPC分类号： B29D11/00663
摘要： A method for providing waveguide structures for an energy assisted magnetic recording (EAMR) transducer is described. The waveguide structures have a plurality of widths. At least one waveguide layer is provided. Mask structure(s) corresponding to the waveguide structures and having a pattern are provided on the waveguide layer(s). The mask structure(s) include a planarization stop layer, a planarization assist layer on the planarization stop layer, and a hard mask layer on the planarization assist layer. The planarization assist layer has a low density. The pattern of the mask structure(s) is transferred to the waveguide layer(s). Optical material(s) that cover the waveguide layer(s) and a remaining portion of the mask structure(s) are provided. The optical material(s) have a density that is at least twice the low density of the planarization assist layer. The method also includes performing a planarization configured to remove at least a portion of the optical material(s).
摘要翻译：描述了一种用于提供能量辅助磁记录（EAMR）换能器的波导结构的方法。波导结构具有多个宽度。提供至少一个波导层。对应于波导结构并具有图案的掩模结构设置在波导层上。掩模结构包括平坦化停止层，平坦化停止层上的平坦化辅助层和平坦化辅助层上的硬掩模层。平坦化助剂层具有低密度。掩模结构的图案被传送到波导层。提供了覆盖波导层和掩模结构的剩余部分的光学材料。光学材料的密度至少是平坦化辅助层的低密度的两倍。该方法还包括执行被配置为去除至少一部分光学材料的平坦化。

2. 发明授权

US08846534B1 Process for CMP with large feature size variation 有权
标题翻译：具有大特征尺寸变化的CMP的工艺
公开(公告)号：US08846534B1
公开(公告)日：2014-09-30
申请号：US13269453
申请日：2011-10-07
申请人： Yunfei Li , Ge Yi , Dujiang Wan , Guanghong Luo , Lijie Zhao , Yanfeng Chen , Lily Yao , Ming Jiang
发明人： Yunfei Li , Ge Yi , Dujiang Wan , Guanghong Luo , Lijie Zhao , Yanfeng Chen , Lily Yao , Ming Jiang
IPC分类号： H01L21/302
CPC分类号： G11B5/3163
摘要： Embodiments of the present invention relate to reducing the size variation on a wafer fabrication. In some embodiments, at least a portion the backfill material over features larger than a threshold size is etched or milled to provide backfill protrusions over those features. The backfill protrusions are configured to reduce the size variation across the fabrication. Embodiments of the invention may be used in fabrication of many types of devices, such as tapered wave guides (TWG), near-field transducers (NFT), MEMS devices, EAMR optical devices, optical structures, bio-optical devices, micro-fluidic devices, and magnetic writers.
摘要翻译：本发明的实施例涉及减小晶片制造的尺寸变化。在一些实施例中，至少一部分覆盖材料超过阈值尺寸的特征被蚀刻或研磨以在这些特征上提供回填突起。回填突起构造成减小制造过程中的尺寸变化。本发明的实施例可用于制造诸如锥形波导（TWG），近场换能器（NFT），MEMS装置，EAMR光学装置，光学结构，生物光学装置，微流体设备和磁性作者。

3. 发明授权

US08705205B1 Magnetic recording head having a dual sidewall angle 有权
标题翻译：具有双重侧壁角度的磁记录头
公开(公告)号：US08705205B1
公开(公告)日：2014-04-22
申请号：US13169685
申请日：2011-06-27
申请人： Yunfei Li , Lijie Guan , Ying Hong , Zhigang Bai , Jinqiu Zhang , Yugang Wang , Feng Liu , Tao Pan
发明人： Yunfei Li , Lijie Guan , Ying Hong , Zhigang Bai , Jinqiu Zhang , Yugang Wang , Feng Liu , Tao Pan
IPC分类号： G11B5/127
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A magnetic transducer having an air-bearing surface (ABS) is described. The magnetic transducer includes a pole and at least one coil for energizing the pole. The pole has a pole tip proximate to the ABS, a yoke distal from the ABS, and a bottom surface including a bottom bevel. At least the yoke includes at least one sidewall having a first angle and a second angle. The first angle is between the bottom surface and the at least one sidewall. The second angle is a constant distance along the at least one sidewall from the first angle.
摘要翻译：描述了具有空气轴承表面（ABS）的磁换能器。磁换能器包括极和用于激励极的至少一个线圈。杆具有靠近ABS的极尖端，远离ABS的轭，以及包括底部斜面的底表面。至少轭包括具有第一角度和第二角度的至少一个侧壁。第一角度在底表面和至少一个侧壁之间。第二角度是从第一角度沿着至少一个侧壁的恒定距离。

4. 发明申请

US20110211509A1 METHOD, DEVICE, AND SYSTEM FOR IMPLEMENTING COMMUNICATION SERVICES 有权
标题翻译：用于实施通信服务的方法，设备和系统
公开(公告)号：US20110211509A1
公开(公告)日：2011-09-01
申请号：US13105760
申请日：2011-05-11
申请人： Shiqian Li , Lun Lian , Fengshao Zou , Xun Shi , Yunfei Li
发明人： Shiqian Li , Lun Lian , Fengshao Zou , Xun Shi , Yunfei Li
IPC分类号： H04L12/56 , H04B7/00
CPC分类号： H04L12/14 , H04L12/1457 , H04L12/1471 , H04L12/1496 , H04L65/1069 , H04L65/403 , H04M15/00 , H04M15/43 , H04M15/745 , H04M15/80 , H04M15/8066 , H04M15/8072 , H04M15/8077 , H04M15/8083 , H04M2215/0108 , H04M2215/0152 , H04M2215/0184 , H04M2215/74 , H04M2215/7478 , H04M2215/7485 , H04M2215/7492 , H04Q3/0045
摘要： A method for implementing communication services includes: after receiving a call request, determining whether a user subscribes to an IP Centrex service and an intelligent network (IN) service according to the obtained subscription information of the user; if the user subscribes to the IP Centrex service and IN service, checking with an application server (AS) whether the call request is for an intra-group call; if the call request is for an intra-group call, performing corresponding service processing according to the checking result to implement discount charging on the intra-group call. By using the method of the present invention, if the user subscribes to the IP Centrex service and the IN service, no conflict occurs between the IP Centrex service and the IN service, and discount charging is implemented on the intra-group call. A network device and a mobile communication system are also provided.
摘要翻译：实现通信服务的方法包括：在接收到呼叫请求之后，根据获得的用户的订阅信息确定用户是否订购IP Centrex服务和智能网（IN）服务; 如果用户订阅IP Centrex服务和IN服务，则与应用服务器（AS）一起检查呼叫请求是否用于组内呼叫; 如果呼叫请求是针对组内呼叫，则根据检查结果执行相应的业务处理，以实现组内呼叫的折扣收费。通过使用本发明的方法，如果用户订阅IP Centrex服务和IN业务，则在IP Centrex业务和IN业务之间不会发生冲突，并且在组内呼叫上实现折扣收费。还提供了网络设备和移动通信系统。

5. 发明授权

US07283337B2 Abutted exchange bias design for sensor stabilization 失效
标题翻译：传感器稳定的基准交换偏置设计
公开(公告)号：US07283337B2
公开(公告)日：2007-10-16
申请号：US11074270
申请日：2005-03-04
申请人： Masanori Sakai , Kunliang Zhang , Kenichi Takano , Chyu-Jiuh Torng , Yunfei Li , Po-Kang Wang
发明人： Masanori Sakai , Kunliang Zhang , Kenichi Takano , Chyu-Jiuh Torng , Yunfei Li , Po-Kang Wang
IPC分类号： G11B5/127
CPC分类号： G11B5/3932
摘要： A hard bias (HB) structure for biasing a free layer in a MR sensor within a magnetic read head is comprised of a main biasing layer with a large negative magnetostriction (λS) value. Compressive stress in the device after lapping induces a strong in-plane anisotropy that effectively provides a longitudinal bias to stabilize the sensor. The main biasing layer is formed between two FM layers, and at least one AFM layer is disposed above the upper FM layer or below the lower FM layer. Additionally, there may be a Ta/Ni or Ta/NiFe seed layer as the bottom layer in the HB structure. Compared with a conventional abutted junction exchange bias design, the HB structure described herein results in higher output amplitude under similar asymmetry sigma and significantly decreases sidelobe occurrence. Furthermore, smaller MRWu with a similar track width is achieved since the main biasing layer acts as a side shield.
摘要翻译：用于偏置磁读头内的MR传感器中的自由层的硬偏置（HB）结构包括具有大的负磁致伸缩（λS S S S S）值的主偏置层。研磨后装置中的压缩应力引起强的面内各向异性，其有效地提供纵向偏压以稳定传感器。主偏置层形成在两个FM层之间，并且至少一个AFM层设置在上FM层上方或下FM层的下方。另外，可以存在作为HB结构中的底层的Ta / Ni或Ta / NiFe种子层。与传统的邻接结交换偏置设计相比，本文所述的HB结构在类似的不对称西格玛下产生更高的输出幅度，并显着降低旁瓣发生。此外，由于主偏置层用作侧屏蔽，所以实现了具有相似轨道宽度的较小MRWu。

6. 发明授权

US08737970B2 Method and apparatus for processing release of connection resources 有权
标题翻译：用于处理连接资源释放的方法和装置
公开(公告)号：US08737970B2
公开(公告)日：2014-05-27
申请号：US13365945
申请日：2012-02-03
申请人： Yunfei Li , Zhaohui Zhang , Bingbing Ma , Bingyi Liu , Guoyu Xu
发明人： Yunfei Li , Zhaohui Zhang , Bingbing Ma , Bingyi Liu , Guoyu Xu
IPC分类号： H04M3/42 , H04W76/06 , H04W76/00 , H04W76/02 , H04W76/04 , H04W74/00
CPC分类号： H04W76/06 , H04W24/04 , H04W74/00 , H04W76/00 , H04W76/10 , H04W76/11 , H04W76/20 , H04W76/27 , H04W76/30 , H04W92/14
摘要： A method and an apparatus for processing release of connection resources are provided. The method includes: stopping transmitting a service message to a Mobile Switch Center (MSC) in a first preset duration after receiving a reset message transmitted by the MSC, and restoring transmission of the service message to the MSC after the first preset duration, where release of connection resources between a Base Station Controller (BSC) and the MSC is ensured to be completed in the first preset duration. Through the method and the apparatus for processing the release of the connection resources, after the MSC transmits the reset message, it is ensured that the services of other MSCs are not affected and also the connection corresponding to the MSC transmitting the reset message on the BSC is released, so new services are not affected accordingly, thereby improving Quality of Service (QoS) of the services.
摘要翻译：提供了一种用于处理连接资源释放的方法和装置。该方法包括：在接收到由MSC发送的重置消息之后，在第一预设持续时间内停止向移动交换中心（MSC）发送服务消息，并且在第一预设持续时间之后恢复到MSC的业务消息传输，其中释放确保基站控制器（BSC）和MSC之间的连接资源在第一预设持续时间内完成。通过用于处理连接资源的释放的方法和装置，在MSC发送重置消息之后，确保其他MSC的服务不受影响，并且还确定与MSC上发送重置消息的MSC相对应的连接因此新服务不会受到相应影响，从而提高服务质量（QoS）。

7. 发明申请

US20120111826A1 DAMASCENE PROCESS USING PVD SPUTTER CARBON FILM AS CMP STOP LAYER FOR FORMING A MAGNETIC RECORDING HEAD 有权
标题翻译：使用PVD溅射碳膜作为CMP停止层形成磁记录头的吸塑工艺
公开(公告)号：US20120111826A1
公开(公告)日：2012-05-10
申请号：US12943835
申请日：2010-11-10
申请人： YANFENG CHEN , Yunjun Tang , Yana Qian , Ming M. Yang , Yunfei Li , Paul E. Anderson
发明人： YANFENG CHEN , Yunjun Tang , Yana Qian , Ming M. Yang , Yunfei Li , Paul E. Anderson
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/3163
摘要： Damascene processes using physical vapor deposition (PVD) sputter carbon film as a chemical mechanical planarization (CMP) stop layer for forming a magnetic recording head are provided. In one embodiment, one such process includes providing an insulator, removing a portion of the insulator to form a trench within the insulator, depositing a carbon material on first portions of the insulator using a physical vapor deposition process, disposing at least one ferromagnetic material on second portions of the insulator to form a pole including a portion of the ferromagnetic material within the trench, and performing a chemical mechanical planarization on the at least one ferromagnetic material using at least a portion of the carbon material as a stop for the chemical mechanical planarization.
摘要翻译：提供使用物理气相沉积（PVD）溅射碳膜作为用于形成磁记录头的化学机械平面化（CMP）停止层的镶嵌工艺。在一个实施例中，一种这样的方法包括提供绝缘体，去除绝缘体的一部分以在绝缘体内形成沟槽，使用物理气相沉积工艺在绝缘体的第一部分上沉积碳材料，将至少一种铁磁材料放置在所述绝缘体的第二部分形成包括所述沟槽内的所述铁磁材料的一部分的极，以及使用所述碳材料的至少一部分作为所述化学机械平面化的停止层，对所述至少一种铁磁材料进行化学机械平坦化。

8. 发明授权

US08320220B1 Method and system for providing an energy assisted magnetic recording disk drive having a non-conformal heat spreader 有权
标题翻译：用于提供具有非保形散热器的能量辅助磁记录盘驱动器的方法和系统
公开(公告)号：US08320220B1
公开(公告)日：2012-11-27
申请号：US13273203
申请日：2011-10-13
申请人： Hongxing Yuan , Wentao Yan , Shing Lee , Zhong Shi , Jerome Marcelino , Yunfei Li , Zhongyan Wang
发明人： Hongxing Yuan , Wentao Yan , Shing Lee , Zhong Shi , Jerome Marcelino , Yunfei Li , Zhongyan Wang
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： An energy assisted magnetic recording (EAMR) transducer coupled with a laser is described. The EAMR transducer has an air-bearing surface (ABS) residing near a media during use. The laser provides energy. The transducer includes a waveguide, a near field transducer (NFT) proximate to the ABS, a write pole, a heat spreader, and at least one coil. The waveguide directs the energy from the laser toward the ABS. The NFT is optically coupled with the waveguide, focuses the energy onto the media, and includes a disk having an NFT width. The write pole writes to the media. The heat spreader is thermally coupled with the NFT. A first portion of the heat spreader is between the NFT and the pole, is between the ABS and a second portion of the heat spreader, and has a first width. The second portion has a second width greater than the first width.
摘要翻译：描述了与激光器耦合的能量辅助磁记录（EAMR）传感器。在使用过程中，EAMR传感器具有驻留在介质附近的空气轴承表面（ABS）。激光器提供能量。换能器包括靠近ABS的波导，近场换能器（NFT），写柱，散热器和至少一个线圈。波导将能量从激光器引向ABS。 NFT与波导光学耦合，将能量聚焦到介质上，并且包括具有NFT宽度的盘。写入磁极写入媒体。散热器与NFT热耦合。散热器的第一部分在NFT和极之间，位于ABS和散热器的第二部分之间，并且具有第一宽度。第二部分具有大于第一宽度的第二宽度。

9. 发明授权

US07275304B2 Method of forming a hard bias structure in a magnetic head 失效
标题翻译：在磁头中形成硬偏置结构的方法
公开(公告)号：US07275304B2
公开(公告)日：2007-10-02
申请号：US11074244
申请日：2005-03-04
申请人： Masanori Sakai , Kunliang Zhang , Kenichi Takano , Chyu-Jiuh Torng , Yunfei Li , Po-Kang Wang
发明人： Masanori Sakai , Kunliang Zhang , Kenichi Takano , Chyu-Jiuh Torng , Yunfei Li , Po-Kang Wang
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3932 , G11B2005/3996 , Y10T29/49021 , Y10T29/49034 , Y10T29/49043 , Y10T29/49044 , Y10T29/49048
摘要： A hard bias (HB) structure for biasing a free layer in a MR sensor within a magnetic read head is comprised of a main biasing layer with a large negative magnetostriction (λS) value. Compressive stress in the device after lapping induces a strong in-plane anisotropy that effectively provides a longitudinal bias to stabilize the sensor. The main biasing layer is formed between two FM layers, and at least one AFM layer is disposed above the upper FM layer or below the lower FM layer. Additionally, there may be a Ta/Ni or Ta/NiFe seed layer as the bottom layer in the HB structure. Compared with a conventional abutted junction exchange bias design, the HB structure described herein results in higher output amplitude under similar asymmetry sigma and significantly decreases sidelobe occurrence. Furthermore, smaller MRWu with a similar track width is achieved since the main biasing layer acts as a side shield.
摘要翻译：用于偏置磁读头内的MR传感器中的自由层的硬偏置（HB）结构包括具有大的负磁致伸缩（λS S S S S）值的主偏置层。研磨后装置中的压缩应力引起强的面内各向异性，其有效地提供纵向偏压以稳定传感器。主偏置层形成在两个FM层之间，并且至少一个AFM层设置在上FM层上方或下FM层的下方。另外，可以存在作为HB结构中的底层的Ta / Ni或Ta / NiFe种子层。与传统的邻接结交换偏置设计相比，本文所述的HB结构在类似的不对称西格玛下产生更高的输出幅度，并显着降低旁瓣发生。此外，由于主偏置层用作侧屏蔽，所以实现了具有相似轨道宽度的较小MRWu。

10. 发明申请

US20060198059A1 Novel abutted exchange bias design for sensor stabilization 失效
公开(公告)号：US20060198059A1
公开(公告)日：2006-09-07
申请号：US11074270
申请日：2005-03-04
申请人： Masanori Sakai , Kunliang Zhang , Kenichi Takano , Chyu-Jiuh Torng , Yunfei Li , Po-Kang Wang
发明人： Masanori Sakai , Kunliang Zhang , Kenichi Takano , Chyu-Jiuh Torng , Yunfei Li , Po-Kang Wang
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： G11B5/3932
摘要： A hard bias (HB) structure for biasing a free layer in a MR sensor within a magnetic read head is comprised of a main biasing layer with a large negative magnetostriction (λS) value. Compressive stress in the device after lapping induces a strong in-plane anisotropy that effectively provides a longitudinal bias to stabilize the sensor. The main biasing layer is formed between two FM layers, and at least one AFM layer is disposed above the upper FM layer or below the lower FM layer. Additionally, there may be a Ta/Ni or Ta/NiFe seed layer as the bottom layer in the HB structure. Compared with a conventional abutted junction exchange bias design, the HB structure described herein results in higher output amplitude under similar asymmetry sigma and significantly decreases sidelobe occurrence. Furthermore, smaller MRWu with a similar track width is achieved since the main biasing layer acts as a side shield.

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