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31. 发明授权

US08228633B1 Method and system for providing a magnetic recording transducer having a hybrid moment pole 有权
标题翻译：用于提供具有混合力矩极的磁记录换能器的方法和系统
公开(公告)号：US08228633B1
公开(公告)日：2012-07-24
申请号：US12196131
申请日：2008-08-21
申请人： Ut Tran , Zhigang Bai
发明人： Ut Tran , Zhigang Bai
IPC分类号： G11B5/23
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163
摘要： A method and system provide a magnetic transducer that includes an air-bearing surface (ABS). The magnetic transducer includes an underlayer and a main pole residing on the underlayer. The main pole includes a front and a rear. The front resides at the ABS, while the rear is distal from the ABS. The main pole also includes a first portion having a first magnetic moment and a second portion having a second magnetic moment. The first portion has a front face at the ABS and terminates between the ABS and the rear of the main pole. A part of the second portion resides on the first portion, while another part of the second portion resides between the first portion of the main pole and the rear of the main pole. The first magnetic moment is less than the second magnetic moment.
摘要翻译：一种方法和系统提供包括空气轴承表面（ABS）的磁换能器。磁换能器包括底层和位于底层上的主极。主杆包括前部和后部。前部位于ABS，而后部位于ABS的远端。主极还包括具有第一磁矩的第一部分和具有第二磁矩的第二部分。第一部分在ABS处具有前表面并且终止于ABS和主极的后部之间。第二部分的一部分位于第一部分上，而第二部分的另一部分位于主极的第一部分和主极的后部之间。第一个磁矩小于第二个磁矩。

32. 发明授权

US08179636B1 Method and system for providing a perpendicular magnetic recording writer 有权
标题翻译：用于提供垂直磁记录器的方法和系统
公开(公告)号：US08179636B1
公开(公告)日：2012-05-15
申请号：US12042691
申请日：2008-03-05
申请人： Zhigang Bai , Lisha Wang , Tao Pan , Yugang Wang , Matthew R. Gibbons , Sining Mao
发明人： Zhigang Bai , Lisha Wang , Tao Pan , Yugang Wang , Matthew R. Gibbons , Sining Mao
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/3116
摘要： A method and system for providing a magnetic transducer for recording to media is described. The method and system include providing a first pole, a main pole, an auxiliary pole, and at least one coil. The main pole has a first media-facing surface including a recessed portion and a write portion. The auxiliary pole is magnetically coupled with the main pole and has a second media-facing surface. The second media-facing surface includes a first portion and a second portion. The first portion is in proximity to the write portion of the first media-facing surface of the main pole. The second portion is in proximity to and recessed from the recessed portion of the first media-facing surface of the main pole. The coil(s) are for energizing the main pole.
摘要翻译：描述了一种用于提供用于记录到介质的磁换能器的方法和系统。该方法和系统包括提供第一极，主极，辅助极和至少一个线圈。主极具有包括凹部和写入部的第一面向媒体的表面。辅助极与主极磁耦合并具有第二介质面向表面。第二面向媒体的表面包括第一部分和第二部分。第一部分靠近主极的第一面向媒体的表面的写入部分。第二部分接近主凹槽的第一面向介质表面的凹陷部分并且从其凹入。线圈用于激励主极。

33. 发明申请

US20120018858A1 METHOD OF ASSEMBLING INTEGRATED CIRCUIT DEVICE 有权
标题翻译：装配集成电路装置的方法
公开(公告)号：US20120018858A1
公开(公告)日：2012-01-26
申请号：US13092162
申请日：2011-04-22
申请人： Wei Min Chen , Zhigang Bai , Zhijie Wang
发明人： Wei Min Chen , Zhigang Bai , Zhijie Wang
IPC分类号： H01L23/552 , H01L21/56
CPC分类号： H01L23/552 , H01L21/565 , H01L23/3128 , H01L23/3135 , H01L24/16 , H01L24/29 , H01L24/33 , H01L24/45 , H01L24/48 , H01L24/73 , H01L24/81 , H01L24/83 , H01L24/85 , H01L24/92 , H01L24/97 , H01L2224/16225 , H01L2224/16245 , H01L2224/32225 , H01L2224/45124 , H01L2224/45144 , H01L2224/48091 , H01L2224/48227 , H01L2224/48247 , H01L2224/73204 , H01L2224/73265 , H01L2224/83192 , H01L2224/85 , H01L2224/92125 , H01L2224/92247 , H01L2224/97 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01023 , H01L2924/01029 , H01L2924/0103 , H01L2924/01046 , H01L2924/01047 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/014 , H01L2924/14 , H01L2924/15311 , H01L2924/16152 , H01L2924/181 , H01L2924/3025 , Y10T29/49146 , H01L2924/00012 , H01L2924/00 , H01L2224/81 , H01L2224/45015 , H01L2924/207
摘要： A method of assembling an integrated circuit (IC) device includes the steps of providing a lead frame or substrate panel, attaching a semiconductor die to the lead frame or substrate panel and electrically coupling the die to the lead frame or substrate panel. The method further includes encapsulating the die with a first encapsulant, and the encapsulating the first encapsulant with a second encapsulant where the second encapsulant includes a material that provides electromagnetic shielding.
摘要翻译：一种组装集成电路（IC）器件的方法包括以下步骤：提供引线框架或衬底面板，将半导体管芯附接到引线框架或衬底面板，并将管芯电耦合到引线框架或衬底面板。该方法还包括用第一密封剂封装管芯，并用第二密封剂封装第一密封剂，其中第二密封剂包括提供电磁屏蔽的材料。

34. 发明授权

US08085498B2 PMR write with flux choking area 有权
公开(公告)号：US08085498B2
公开(公告)日：2011-12-27
申请号：US12586249
申请日：2009-09-17
申请人： Zhigang Bai , Yue Liu , Kowang Liu , Yan Wu , Moris Dovek
发明人： Zhigang Bai , Yue Liu , Kowang Liu , Yan Wu , Moris Dovek
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163
摘要： A PMR writer having a trailing shield structure is disclosed in which a flux choking layer (FCL) formed adjacent to the ABS provides a means to limit the amount of flux flowing from the trailing shield to a first write shield (WS1) near the write pole tip thereby significantly reducing adjacent track erasure. The FCL has a substantially smaller thickness than a top section of the trailing shield to which it is attached along a side opposite the ABS. As a result, pole tip protrusion is reduced compared to prior art PMR writers. The FCL contacts a trailing side of WS1 at the ABS and one or both of the trailing sides of the WS1 and FCL may be tapered or perpendicular with respect to the ABS. The top trailing shield section, FCL, and WS1 may be comprised of NiFe, CoFe, CoFeNi, or alloys thereof.

35. 发明申请

US20110273802A1 Side shielded magnetoresistive(MR) read with perpendicular magnetic free layer 有权
标题翻译：侧面屏蔽磁阻（MR）用垂直磁性自由层读取
公开(公告)号：US20110273802A1
公开(公告)日：2011-11-10
申请号：US12799924
申请日：2010-05-05
申请人： Yuchen Zhou , Kunliang Zhang , Zhigang Bai
发明人： Yuchen Zhou , Kunliang Zhang , Zhigang Bai
IPC分类号： G11B5/33
CPC分类号： G11B5/398 , B82Y10/00 , B82Y25/00 , B82Y40/00 , G01R33/093 , G01R33/098 , G11B5/3906 , G11B5/3909 , G11B5/3912 , G11B2005/3996 , H01F10/30 , H01F10/3259 , H01F10/3286 , H01F10/3295 , H01F41/307 , H01L43/02 , H01L43/08
摘要： A MR sensor is disclosed that has a free layer (FL) with perpendicular magnetic anisotropy (PMA) which eliminates the need for an adjacent hard bias structure to stabilize free layer magnetization and minimizes shield-FL interactions. In a TMR embodiment, a seed layer, free layer, junction layer, reference layer, and pinning layer are sequentially formed on a bottom shield. After patterning, a conformal insulation layer is formed along the sensor sidewall. Thereafter, a top shield is formed on the insulation layer and includes side shields that are separated from the FL by a narrow read gap. The sensor is scalable to widths
摘要翻译：公开了具有垂直磁各向异性（PMA）的自由层（FL）的MR传感器，其不需要相邻的硬偏置结构来稳定自由层磁化并使屏蔽-FL相互作用最小化。在TMR实施例中，种子层，自由层，结层，参考层和钉扎层依次形成在底部屏蔽上。在图案化之后，沿传感器侧壁形成保形绝缘层。此后，在绝缘层上形成顶部屏蔽，并且包括通过狭窄的读取间隙与FL分离的侧面屏蔽。当PMA大于FL自扫描场时，传感器可缩放到宽度<50 nm。有效偏置场对传感器纵横比相当不敏感，这使得高条纹和窄宽度传感器成为高RA TMR配置的可行方法。侧面屏蔽可以延伸到种子层平面以下。

36. 发明申请

US20110097602A1 External field robustness of read/write head shields 有权
标题翻译：读/写头屏蔽的外部场强鲁棒性
公开(公告)号：US20110097602A1
公开(公告)日：2011-04-28
申请号：US12589598
申请日：2009-10-26
申请人： Zhigang Bai , Yuchen Zhou , Joe Smyth , Moris Dovek , Yan Wu
发明人： Zhigang Bai , Yuchen Zhou , Joe Smyth , Moris Dovek , Yan Wu
IPC分类号： G11B5/33 , B44C1/22
CPC分类号： G11B5/1278 , G11B5/315 , G11B5/6011 , Y10T428/1171
摘要： An improved magnetic shield for a perpendicular magnetic write head is disclosed. Its main feature is a pair of tabs at the shield's bottom corners. Said tabs are significantly wider at their point of attachment to the shield than further away from the shield. The end portions of each tab slope upwards (away from the ABS) at an angle of about ten degrees. A process for manufacturing the shield is also disclosed.
摘要翻译：公开了用于垂直磁写头的改进的磁屏蔽。它的主要特征是盾牌底角上的一对标签。所述突片在其远离屏蔽件的位置处与屏蔽件的连接点明显更宽。每个翼片的端部以大约十度的角度向上（远离ABS）倾斜。还公开了一种用于制造屏蔽的工艺。

37. 发明申请

US20110097601A1 Wrap-around shielded writer with highly homogeneous shield material 有权
标题翻译：带有高度均匀的屏蔽材料的环绕屏蔽作者
公开(公告)号：US20110097601A1
公开(公告)日：2011-04-28
申请号：US12589597
申请日：2009-10-26
申请人： Zhigang Bai , Yan Wu , Moris Dovek , Cherng Chyi Han
发明人： Zhigang Bai , Yan Wu , Moris Dovek , Cherng Chyi Han
IPC分类号： G11B5/33
CPC分类号： G11B5/6082 , G11B5/112 , G11B5/1278 , G11B5/315 , G11B5/3163 , Y10T428/1171
摘要： A perpendicular magnetic recording (PMR) head is fabricated with a main pole shielded laterally by a pair of side shields, shielded above by a trailing shield and shielded optionally below by a leading shield. The shields and the seed layers on which they are formed are formed of materials having substantially the same physical characteristics including the same material composition, the same hardness, the same response to processes such as ion beam etching (IBE), chemical mechanical polishing (CMP), mechanical lapping, such as the slider ABS lapping, the same coefficient of thermal expansion (CTE) as well as the same Bs. Optionally, the trailing shield may be formed on a high Bs seed layer to provide the write head with improved down-track performance.
摘要翻译：垂直磁记录（PMR）头被制造成具有由一对侧屏蔽横向屏蔽的主极，屏蔽在后面并由屏蔽罩屏蔽并且被前屏蔽罩屏蔽。其形成的屏蔽层和种子层由具有相同物理特性的材料形成，包括相同的材料组成，相同的硬度，对离子束蚀刻（IBE），化学机械抛光（CMP）），机械研磨，如滑块ABS研磨，相同的热膨胀系数（CTE）以及相同的Bs。可选地，后屏蔽可以形成在高Bs种子层上，以向写头提供改进的下行轨迹性能。

38. 发明授权

US09498898B2 Cleaning mechanism for semiconductor singulation saws 有权
标题翻译：半导体单片锯清洗机构
公开(公告)号：US09498898B2
公开(公告)日：2016-11-22
申请号：US14555562
申请日：2014-11-26
申请人： Zhijie Wang , Zhigang Bai , Mei Liu , Jiyong Niu , Zhimei Sun , Huchang Zhang
发明人： Zhijie Wang , Zhigang Bai , Mei Liu , Jiyong Niu , Zhimei Sun , Huchang Zhang
IPC分类号： B28D7/02 , H01L21/67 , B28D5/02 , B28D1/04
CPC分类号： B28D7/02 , B28D1/04 , B28D5/022 , H01L21/67046 , H01L21/67092
摘要： A cleaning subsystem removes unwanted material, such as glaze, from saw blades used in a semiconductor singulation process. A cleaning module moves radially towards the saw blade and vertically with respect to the plane of the saw blade in order to enable abrasive cleaning blocks of the cleaning module to selectively remove material from either the upper and lower surfaces of the saw blade or the outer edge of the saw blade. The cleaning assembly can remove material from the saw blade at a predetermined time or position during the singulation process or upon detection of load imbalance during the rotation of the saw blade.
摘要翻译：清洁子系统从用于半导体分离过程的锯片中除去不想要的材料，例如釉料。清洁模块相对于锯片的平面径向朝向锯片并且垂直移动，以便清洁模块的研磨清洁块能够选择性地从锯片的上表面和下表面或外边缘去除材料的锯片。清洁组件可以在切割过程期间的预定时间或位置处或者在锯片旋转期间检测到负载不平衡时从锯片上移除材料。

39. 发明授权

US09478236B1 Perpendicular magnetic recording write head 有权
标题翻译：垂直磁记录头
公开(公告)号：US09478236B1
公开(公告)日：2016-10-25
申请号：US13631808
申请日：2012-09-28
申请人： Feng Liu , Jinqiu Zhang , Zhigang Bai , Yugang Wang
发明人： Feng Liu , Jinqiu Zhang , Zhigang Bai , Yugang Wang
IPC分类号： G11B5/147
CPC分类号： G11B5/147 , G11B5/1278 , G11B5/3116
摘要： A main pole of a perpendicular magnetic recording write head is disclosed with a non-rectangular shape at the air bearing surface and a rectangular shape behind the air bearing surface. The main pole transitions from the non-rectangular shape to a rectangular shape at a distance of 10 nm to 100 nm behind the air bearing surface. The main pole includes leading and trailing beveled surfaces that extend from the non-rectangular shape of the pole at the air bearing surface toward the rectangular shape transition.
摘要翻译：公开了一种垂直磁记录写头的主极，在空气轴承表面具有非矩形形状，在空气轴承表面后面呈矩形形状。主极在空气轴承表面后方10nm到100nm的距离处从非矩形形状转变为矩形。主杆包括从空气轴承表面上的极的非矩形形状向矩形形状转变延伸的前后倾斜表面。

40. 发明授权

US09406625B2 Die edge seal employing low-K dielectric material 有权
标题翻译：使用低K电介质材料的密封边缘密封
公开(公告)号：US09406625B2
公开(公告)日：2016-08-02
申请号：US14555558
申请日：2014-11-26
申请人： Zhijie Wang , Zhigang Bai , Jiyong Niu , Dehong Ye , Huchang Zhang
发明人： Zhijie Wang , Zhigang Bai , Jiyong Niu , Dehong Ye , Huchang Zhang
IPC分类号： H01L23/544 , H01L27/118 , H01L41/338 , H01L23/00 , H01L23/58 , H01L21/78 , H01L21/66
CPC分类号： H01L23/562 , H01L21/78 , H01L22/34 , H01L23/585 , H01L2924/0002 , H01L2924/00
摘要： A semiconductor wafer has a multi-stage structure that damps and contains nascent cracks generated during dicing and inhibits moisture penetration into the active region of a die. The wafer includes an array of die regions separated by scribe lanes. The die regions include an active region and a first ring that surrounds the active region. A portion of the first ring includes a low-k dielectric material. A second ring includes a stack of alternating layers of metal and interlayer dielectric (ILD) material. A dummy metal region around the rings includes a stacked dummy metal features and surrounds the active region. A regular or irregular staggered arrangement of saw grid process control (SGPC) features reduces mechanical stress during dicing.
摘要翻译：半导体晶片具有多级结构，其能够阻止并包含切割期间产生的新生裂纹并且抑制水分渗透到模具的有源区域。该晶片包括由划线所隔开的芯片区域阵列。管芯区域包括有源区和围绕有源区的第一环。第一环的一部分包括低k电介质材料。第二环包括金属和层间电介质（ILD）材料的交替层叠。围绕环的虚设金属区域包括堆叠的虚拟金属特征并围绕有源区域。锯格过程控制（SGPC）特征的规则或不规则交错排列降低了切割时的机械应力。

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