专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20080278855A1 PERPENDICULAR MAGNETIC RECORDING WRITE HEAD WITH TRAILING SHIELD HAVING NOTCH AND THROAT HEIGHT DEFINED BY NONMAGNETIC PAD LAYER 有权
标题翻译：具有非线性垫层定义的具有凹陷和高度的跟踪屏蔽的磁性记录磁头
公开(公告)号：US20080278855A1
公开(公告)日：2008-11-13
申请号：US11747656
申请日：2007-05-11
申请人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi
发明人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi
IPC分类号： G11B5/127 , G11B5/11
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315
摘要： A perpendicular magnetic recording write head supported on an air-bearing slider has a magnetic write pole (WP) with a WP end at the air-bearing surface (ABS) having a width generally equal to the data track width and a trailing shield (TS) with a TS end generally coplanar with the WP end. The TS has a first portion with a width at the TS end substantially wider than the width of the WP end and a TS notch (TSN) portion with a width at the TS end generally equal to the width of the WP end. The TS first portion has a height in a direction perpendicular to the ABS, and the TSN portion has a throat height (TH) in a direction perpendicular to the ABS that is less than the height of the TS first portion. A nonmagnetic gap layer separates the WP from the TSN portion and a nonmagnetic pad layer separates the WP from the TS first portion. The pad layer has a front edge generally parallel to and recessed from the ABS that defines the TH of the TSN portion, and a thickness that defines the length of the TSN portion in the along-the-track direction.
摘要翻译：支撑在空气轴承滑块上的垂直磁记录写头具有在空气轴承表面（ABS）上具有WP端的磁性写入极（WP），其宽度大体上等于数据磁道宽度和后屏蔽（TS ），其TS端通常与WP端共面。 TS具有第一部分，其宽度在TS端大大宽于WP端的宽度，TS陷口（TSN）部分的宽度在TS端大致等于WP端的宽度。 TS第一部分具有垂直于ABS的方向的高度，并且TSN部分在垂直于ABS的方向上具有小于TS第一部分的高度的喉部高度（TH）。非磁隙层将WP与TSN部分分开，非磁性垫层将WP与TS第一部分分离。衬垫层具有大致平行于ABS并且从ABS凹入的前边缘，其限定TSN部分的TH，以及限定沿着轨道方向的TSN部分的长度的厚度。

2. 发明授权

US07788798B2 Method for manufacturing a perpendicular magnetic write head with wrap around magnetic trailing and side shields 有权
标题翻译：用于制造垂直磁性写入头的方法，包括磁性尾部和侧面屏蔽
公开(公告)号：US07788798B2
公开(公告)日：2010-09-07
申请号：US11944125
申请日：2007-11-21
申请人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi , Sue Siyang Zhang
发明人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi , Sue Siyang Zhang
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3116 , G11B5/1278 , Y10T29/49032 , Y10T29/49043 , Y10T29/49048 , Y10T29/49052 , Y10T29/49798
摘要： A method for manufacturing a magnetic write head having a wrap around magnetic shield. The method allows a highly accurate short wavelength such as 193 mm photolithography to be used to accurately define the placement and critical dimension of wrap around magnetic shield. The method includes the formation of a magnetic write pole, top gap, and side gap and the deposition of a RIEable fill layer thereover, and CMP to planarization. A 193 nm photolithography and ion milling is used to form a mask over the RIEable layer and one or more reactive ion etching processes are performed to pattern the RIEable layer through 193 nm photolithography mask. A wrap around shield can then be electroplated into the opening formed in the RIEable layer.
摘要翻译：一种用于制造具有围绕磁屏蔽的磁性写入头的方法。该方法允许使用高精度的短波长（例如193mm光刻）来精确地定义磁屏蔽环绕的放置和临界尺寸。该方法包括形成磁性写入极，顶部间隙和侧面间隙以及在其上沉积RIEable填充层，并将CMP平坦化。使用193nm光刻和离子研磨在RIEable层上形成掩模，并且执行一个或多个反应离子蚀刻工艺以通过193nm光刻掩模对RIEable层进行图案化。然后可以将环绕的护罩电镀到形成在RIEable层中的开口中。

3. 发明授权

US07768743B2 Perpendicular magnetic recording write head with trailing shield having notch and throat height defined by nonmagnetic pad layer 有权
标题翻译：垂直磁记录写头，后挡板具有由非磁性垫层限定的凹口和喉部高度
公开(公告)号：US07768743B2
公开(公告)日：2010-08-03
申请号：US11747656
申请日：2007-05-11
申请人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi
发明人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315
摘要： A perpendicular magnetic recording write head supported on an air-bearing slider has a magnetic write pole (WP) with a WP end at the air-bearing surface (ABS) having a width generally equal to the data track width and a trailing shield (TS) with a TS end generally coplanar with the WP end. The TS has a first portion with a width at the TS end substantially wider than the width of the WP end and a TS notch (TSN) portion with a width at the TS end generally equal to the width of the WP end. The TS first portion has a height in a direction perpendicular to the ABS, and the TSN portion has a throat height (TH) in a direction perpendicular to the ABS that is less than the height of the TS first portion. A nonmagnetic gap layer separates the WP from the TSN portion and a nonmagnetic pad layer separates the WP from the TS first portion. The pad layer has a front edge generally parallel to and recessed from the ABS that defines the TH of the TSN portion, and a thickness that defines the length of the TSN portion in the along-the-track direction.
摘要翻译：支撑在空气轴承滑块上的垂直磁记录写头具有在空气轴承表面（ABS）上具有WP端的磁性写入极（WP），其宽度大体上等于数据磁道宽度和后屏蔽（TS ），其TS端通常与WP端共面。 TS具有第一部分，其宽度在TS端大大宽于WP端的宽度，TS陷口（TSN）部分的宽度在TS端大致等于WP端的宽度。 TS第一部分具有垂直于ABS的方向的高度，并且TSN部分在垂直于ABS的方向上具有小于TS第一部分的高度的喉部高度（TH）。非磁隙层将WP与TSN部分分开，非磁性垫层将WP与TS第一部分分离。衬垫层具有大致平行于ABS并且从ABS凹入的前边缘，其限定TSN部分的TH，以及限定沿着轨道方向的TSN部分的长度的厚度。

4. 发明申请

US20090128964A1 METHOD FOR MANUFACTURING A PERPENDICULAR MAGNETIC WRITE HEAD WITH WRAP AROUND MAGNETIC TRAILING AND SIDE SHIELDS 有权
标题翻译：用于制作带磁带跟踪和边缘的扁平磁头写头的方法
公开(公告)号：US20090128964A1
公开(公告)日：2009-05-21
申请号：US11944125
申请日：2007-11-21
申请人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi , Sue Siyang Zhang
发明人： Hung-Chin Guthrie , Ming Jiang , Changqing Shi , Sue Siyang Zhang
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , Y10T29/49032 , Y10T29/49043 , Y10T29/49048 , Y10T29/49052 , Y10T29/49798
摘要： A method for manufacturing a magnetic write head having a wrap around magnetic shield. The method allows a highly accurate short wavelength such as 193 mm photolithography to be used to accurately define the placement and critical dimension of wrap around magnetic shield. The method includes the formation of a magnetic write pole, top gap, and side gap and the deposition of a RIEable fill layer thereover, and CMP to planarization. A 193 nm photolithography and ion milling is used to form a mask over the RIEable layer and one or more reactive ion etching processes are performed to pattern the RIEable layer through 193 nm photolithography mask. A wrap around shield can then be electroplated into the opening formed in the RIEable layer.
摘要翻译：一种用于制造具有围绕磁屏蔽的磁性写入头的方法。该方法允许使用高精度的短波长（例如193mm光刻）来精确地定义磁屏蔽环绕的放置和临界尺寸。该方法包括形成磁性写入极，顶部间隙和侧面间隙以及在其上沉积RIEable填充层，并将CMP平坦化。使用193nm光刻和离子研磨在RIEable层上形成掩模，并且执行一个或多个反应离子蚀刻工艺以通过193nm光刻掩模对RIEable层进行图案化。然后可以将环绕的护罩电镀到形成在RIEable层中的开口中。

5. 发明授权

US08409453B1 Method and system for providing a wrap-around shield using a patterned seed layer 失效
标题翻译：用于使用图案种子层提供环绕屏蔽的方法和系统
公开(公告)号：US08409453B1
公开(公告)日：2013-04-02
申请号：US12778480
申请日：2010-05-12
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： B44C1/22
CPC分类号： G11B5/3116 , G11B5/315 , G11B5/3163
摘要： A method and system for fabricating magnetic recording transducer are described. The magnetic recording transducer has a main pole, a nonmagnetic gap covering the main pole, and a field region distal from the main pole. A portion of the nonmagnetic gap resides on the top of the main pole. The method and system include providing a patterned seed layer. A thick portion of the patterned seed layer is thicker than a thin portion of the patterned seed layer. At least part of the thick portion of the patterned seed layer resides on a portion of the field region. A wrap-around shield is on the patterned seed layer. At least part of the thin portion of the patterned seed layer is in proximity to and exposed by the wrap-around shield. The method and system also include field etching the field region distal from the wrap-around shield.
摘要翻译：描述了用于制造磁记录换能器的方法和系统。磁记录传感器具有主极，覆盖主极的非磁性间隙和远离主极的场区域。非磁性间隙的一部分位于主极的顶部。该方法和系统包括提供图案化种子层。图案化种子层的厚部分比图案化种子层的薄部分厚。图案化种子层的厚部分的至少部分位于场区域的一部分上。环绕的屏蔽层在图案化的种子层上。图案化种子层的薄部分的至少一部分靠近环绕屏蔽并暴露于其中。该方法和系统还包括对远离环绕屏蔽的场区域进行场蚀刻。

6. 发明授权

US08262919B1 Method and system for providing a perpendicular magnetic recording pole using multiple chemical mechanical planarizations 有权
标题翻译：使用多个化学机械平面化提供垂直磁记录极的方法和系统
公开(公告)号：US08262919B1
公开(公告)日：2012-09-11
申请号：US12824036
申请日：2010-06-25
申请人： Guanghong Luo , Changqing Shi , Danning Yang , Jinwen Wang , Ming Jiang
发明人： Guanghong Luo , Changqing Shi , Danning Yang , Jinwen Wang , Ming Jiang
IPC分类号： B44C1/22
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： A method and system for providing a pole of magnetic transducer having an intermediate layer are described. The method and system include providing a trench in the intermediate layer and depositing a nonmagnetic liner. A portion of the nonmagnetic liner resides in the trench. At least one seed layer is deposited. A portion of the at least one seed layer resides in the trench. The method and system include depositing at least one main pole layer. The at least one main pole layer is magnetic. A portion of the main pole layer(s) reside in the trench. The method and system also include performing a first chemical mechanical planarization (CMP). An excess portion of the seed layer(s) external to the trench are removed through an ion beam etch. The method and system further include performing a second CMP to remove an excess portion of the nonmagnetic liner external to the trench.
摘要翻译：描述了一种用于提供具有中间层的磁换能器的磁极的方法和系统。该方法和系统包括在中间层中提供沟槽并沉积非磁性衬垫。非磁性衬垫的一部分位于沟槽中。沉积至少一个种子层。至少一个种子层的一部分位于沟槽中。该方法和系统包括沉积至少一个主极层。至少一个主极层是磁性的。主极层的一部分驻留在沟槽中。该方法和系统还包括执行第一化学机械平面化（CMP）。通过离子束蚀刻去除沟槽外部的种子层的多余部分。该方法和系统还包括执行第二CMP以去除沟槽外部的非磁性衬垫的多余部分。

7. 发明授权

US07889456B2 Perpendicular magnetic recording write head with flux shaping layers on the write pole and magnetic recording system incorporating the write head 有权
标题翻译：垂直磁记录写磁头与写入磁极和磁记录系统中的磁通成形层结合写入头
公开(公告)号：US07889456B2
公开(公告)日：2011-02-15
申请号：US11939503
申请日：2007-11-13
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/315
摘要： A perpendicular magnetic recording write head having a flux shaping layer located on the write pole which has an end located substantially at the surface of the head carrier that faces the recording medium. The write head includes a main pole, on which the write pole is formed, that has an end recessed from the write pole end, and at least one flux return pole. In one implementation a first flux shaping layer is located between the main pole and the write pole. A second flux shaping layer may be located on the write pole with both shaping layers having an end recessed from the write pole end. The first and second flux shaping layers may also be tapered in the direction of the recording medium and cover the sides of the write pole in the cross-track direction to substantially surrounded the write pole with flux shaping material.
摘要翻译：一种垂直磁记录写头，其具有位于写极上的通量成形层，其具有大致位于头托架的面向记录介质的表面的端部。写头包括形成有写极的主极，其具有从写极端凹入的端部，以及至少一个通量返回极。在一个实施方案中，第一磁通形成层位于主极和写极之间。第二磁通形成层可以位于写极上，两个成形层具有从写极端凹入的端部。第一和第二磁通形成层也可以在记录介质的方向上渐缩，并且在交叉磁道方向上覆盖写极的侧面，以基本上用磁通量成形材料包围写极。

8. 发明申请

US20090154026A1 METHOD FOR MANUFACTURING A PERPENDICULAR MAGNETIC WRITE HEAD WITH A THIN WRAP AROUND MAGNETIC SHIELD 有权
标题翻译：用于制造具有磁带的薄带的普通磁头写入头的方法
公开(公告)号：US20090154026A1
公开(公告)日：2009-06-18
申请号：US11955305
申请日：2007-12-12
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/33
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315
摘要： A magnetic write head for perpendicular magnetic recording having a thin wrap-around magnetic shield. The small thickness and forming method of the thin wrap-around magnetic shield allow it to be electroplated using a thin photoresist frame mask. The thin photoresist frame mask has better critical dimension and straight wall control than a thicker mask, which allows the wrap-around magnetic shield to be constructed with much more straight and uniform back edge for shield throat height control than is possible when forming a thicker (i.e. taller) shield. The thin wrap-around magnetic shield can be stitched to a trailing return pole to avoid magnetic saturation of the wrap-around shield.
摘要翻译：用于垂直磁记录的磁写头，具有薄的环绕磁屏蔽。薄环绕磁屏蔽的小厚度和形成方法允许其使用薄的光致抗蚀剂框架掩模进行电镀。薄的光致抗蚀剂框架掩模具有比较厚的掩模更好的临界尺寸和直壁控制，这使得环绕的磁屏蔽件构造成具有更加直线和均匀的后边缘，用于在形成更厚的（即更高）的盾牌。薄环绕磁屏蔽可以缝合到尾部返回极，以避免环绕屏蔽的磁饱和。

9. 发明申请

US20090122445A1 PERPENDICULAR MAGNETIC RECORDING WRITE HEAD WITH FLUX SHAPING LAYERS ON THE WRITE POLE AND MAGNETIC RECORDING SYSTEM INCORPORATING THE WRITE HEAD 有权
标题翻译：写磁头和写磁头的磁记录系统的磁带记录头磁头记录头
公开(公告)号：US20090122445A1
公开(公告)日：2009-05-14
申请号：US11939503
申请日：2007-11-13
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/10
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/315
摘要： A perpendicular magnetic recording write head has at least one flux shaping layer located on the write pole. The write pole has an end located substantially at the surface of the head carrier that faces the recording medium. The write head includes a main pole, on which the write pole is formed, that has an end recessed from the write pole end, and at least one flux return pole. In one implementation a first flux shaping layer is located between the main pole and the write pole and has an end recessed from the write pole end. A second flux shaping layer, also with its end recessed form the write pole end, may be located on the write pole. The second flux shaping layer may also cover the sides of the write pole in the cross-track direction so that together with the first flux shaping layer, the write pole is substantially surrounded by flux shaping material. The ends of the flux shaping layers may be tapered in the direction of the recording medium to enhance directing and shaping the flux to the write pole end.
摘要翻译：垂直磁记录写头具有位于写柱上的至少一个磁通形成层。写极具有大致位于头托架的面向记录介质的表面的端部。写头包括形成有写极的主极，其具有从写极端凹入的端部和至少一个通量返回极。在一个实施方案中，第一磁通形成层位于主极和写极之间，并且具有从写极端凹入的端部。第二磁通形成层，其端部凹入形成写极端，可以位于写极上。第二磁通形成层也可以覆盖写磁极的交叉磁道方向的侧面，使得与第一磁通形成层一起，写磁极基本上被磁通成形材料包围。焊剂成形层的端部可以在记录介质的方向上渐缩，以增强引导和成形焊剂到写入极端部。

10. 发明授权

US08291743B1 Method and system for calibrating an electronic lapping guide for a beveled pole in a magnetic recording transducer 有权
标题翻译：用于校准磁记录传感器中斜面极的电子研磨导轨的方法和系统
公开(公告)号：US08291743B1
公开(公告)日：2012-10-23
申请号：US12473159
申请日：2009-05-27
申请人： Changqing Shi , Ming Jiang
发明人： Changqing Shi , Ming Jiang
IPC分类号： G01N37/00 , G11B27/36
CPC分类号： G11B5/3166 , G11B5/3169
摘要： A method and system for calibrating an electronic lapping guide (ELG) for transducer(s) having an ABS and a magnetic structure are described. The magnetic structure has a desired thickness, a bevel, and a flare point a distance from the ABS. The method and system include providing at least three ELGs. A first ELG has first and second edges first and second distances from the ABS. A second ELG has third and fourth edges third and second distances from the ABS. A third ELG has fifth and sixth edges fourth and second distances from the ABS. The first, third, and fourth distances correspond to a stripe height and an offset. The first, third, and fourth distance and/or the second distance corresponds to an intersection between the bevel and the desired thickness. The method and system also include measuring resistances of the ELGs, and calibrating the ELG(s) utilizing the offset and resistances.
摘要翻译：描述了用于校准具有ABS和磁性结构的换能器的电子研磨导轨（ELG）的方法和系统。磁性结构具有所需的厚度，斜面和距离ABS的距离的火炬点。该方法和系统包括提供至少三个ELG。第一ELG具有第一和第二边缘和ABS之间的第二距离。第二ELG具有距ABS的第三和第四边缘第三和第二距离。第三ELG具有从ABS的第五和第六边缘第四和第二距离。第一，第三和第四距离对应于条纹高度和偏移。第一，第三和第四距离和/或第二距离对应于斜面和期望厚度之间的交点。该方法和系统还包括测量ELG的电阻，并利用偏移和电阻校准ELG。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式