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1.发明授权Perpendicular magnetic recording (PMR) write head with improved shapes of side shield and main pole 有权垂直磁记录（PMR）写头，具有改进的侧屏和主极的形状公开(公告)号：US09406317B1
公开(公告)日：2016-08-02
申请号：US14819534
申请日：2015-08-06
Applicant: Headway Technologies, Inc.
Inventor： Yuhui Tang , Yaguang Wei , Jiun-Ting Lee , Ping-Wei Zhuang
CPC classification number: G11B5/6082 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315
Abstract: A perpendicular magnetic recording writer is disclosed with a side shield separated from a write pole side by a gap layer at an air bearing surface (ABS) where the side shield has a first sidewall facing the write pole with an end at height (h1) from the ABS, and a second sidewall at height h1 that is parallel to the ABS. The write pole side is curved such that a first portion proximate to the ABS is at an angle of 0 to 40 degrees with respect to a center plane formed orthogonal to the ABS, and a second section proximate to a corner where the curved side connects with a flared main pole side is formed substantially parallel to the second sidewall. When h1 is 30-80 nm, and the corner is 80-150 nm from the ABS, overwrite is improved while cross-track field gradient is enhanced.
Abstract translation: 公开了一种垂直磁记录装置，其具有侧面屏蔽，该侧屏蔽在空气轴承表面（ABS）处由间隙层与写入极侧分离，其中侧屏具有面向写极的第一侧壁，高度（h1） ABS，以及平行于ABS的高度为h1的第二侧壁。 写极侧是弯曲的，使得接近ABS的第一部分相对于与ABS正交形成的中心平面成0度到40度的角度，以及靠近拐角处的第二部分，其中弯曲侧与 形成大致平行于第二侧壁的扩口主极侧。 当h1为30-80nm，角为80-150nm时，覆盖提高，而跨轨道场梯度增强。
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2.发明授权公开(公告)号：US09721604B2
公开(公告)日：2017-08-01
申请号：US15222412
申请日：2016-07-28
Applicant: Headway Technologies, Inc.
Inventor： Yuhui Tang , Yaguang Wei , Jiun-Ting Lee , Ping-Wei Zhuang
CPC classification number: G11B5/6082 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315
Abstract: A perpendicular magnetic recording writer is disclosed with a side shield separated from a write pole side by a gap layer at an air bearing surface (ABS) where the side shield has a first sidewall facing the write pole with an end at height (h1) from the ABS, and a second sidewall at height h1 that is parallel to the ABS. The write pole side is curved such that a first portion proximate to the ABS is at an angle of 0 to 40 degrees with respect to a center plane formed orthogonal to the ABS, and a second section proximate to a corner where the curved side connects with a flared main pole side is formed substantially parallel to the second sidewall. When h1 is 30-80 nm, and the corner is 80-150 nm from the ABS, overwrite is improved while cross-track field gradient is enhanced.
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3.发明申请Perpendicular Magnetic Recording (PMR) Write Head with Improved Shapes of Side Shield and Main Pole 审中-公开垂直磁记录（PMR）写头，具有改进的侧屏和主极的形状公开(公告)号：US20170040031A1
公开(公告)日：2017-02-09
申请号：US15222412
申请日：2016-07-28
Applicant: Headway Technologies, Inc.
Inventor： Yuhui Tang , Yaguang Wei , Jiun-Ting Lee , Ping-Wei Zhuang
CPC classification number: G11B5/6082 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315
Abstract: A perpendicular magnetic recording writer is disclosed with a side shield separated from a write pole side by a gap layer at an air bearing surface (ABS) where the side shield has a first sidewall facing the write pole with an end at height (h1) from the ABS, and a second sidewall at height h1 that is parallel to the ABS. The write pole side is curved such that a first portion proximate to the ABS is at an angle of 0 to 40 degrees with respect to a center plane formed orthogonal to the ABS, and a second section proximate to a corner where the curved side connects with a flared main pole side is formed substantially parallel to the second sidewall. When h1 is 30-80 nm, and the corner is 80-150 nm from the ABS, overwrite is improved while cross-track field gradient is enhanced.
Abstract translation: 公开了一种垂直磁记录装置，其具有侧面屏蔽，该侧屏蔽在空气轴承表面（ABS）处由间隙层与写入极侧分离，其中侧屏具有面向写极的第一侧壁，高度（h1） ABS，以及平行于ABS的高度为h1的第二侧壁。 写极侧是弯曲的，使得接近ABS的第一部分相对于与ABS正交形成的中心平面成0度到40度的角度，以及靠近拐角处的第二部分，其中弯曲侧与 形成大致平行于第二侧壁的扩口主极侧。 当h1为30-80nm，角为80-150nm时，覆盖提高，而跨轨道场梯度增强。
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