公开(公告)号：US08233234B2

公开(公告)日：2012-07-31

申请号：US12342647

申请日：2008-12-23

申请人： Wen-Chien D. Hsiao ,  Ming Jiang ,  Sue S. Zhang ,  Yi Zheng

发明人： Wen-Chien D. Hsiao ,  Ming Jiang ,  Sue S. Zhang ,  Yi Zheng

IPC分类号： G11B5/127 ,  H01F10/08 ,  H01L43/12

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T156/10 ,  Y10T428/1171 ,  Y10T428/1186

摘要： A stepped main pole for a perpendicular write head and methods of making the stepped main pole. The stepped main pole has a main pole tip and a base portion. The main pole tip has a surface that forms part of the ABS and a first thickness. The base portion extends from the main pole tip and has a thickness that varies from the first thickness to a second thickness to form a slanted surface with an apex angle adjacent the main pole tip. By placing the base portion away from the ABS and providing a thickness that increases in a direction away from the ABS, the stepped pole can provide the necessary magnetic flux for writing, while avoiding undesired leakage and fringing. To form embodiments of the stepped main pole of the invention, a fluorine-based reactive ion etch (RIE) may be used. By using an RIE to define the stepped main pole, the apex angle can be better controlled and tight edge control can be achieved.

摘要翻译： 用于垂直写头的梯级主极和制作阶梯式主极的方法。 阶梯式主极具有主极尖和基部。 主极尖具有形成ABS的一部分的表面和第一厚度。 基部从主极尖延伸，并且具有从第一厚度变化到第二厚度的厚度，以形成邻近主极尖的顶角的倾斜表面。 通过将基座部分远离ABS并且提供沿离开ABS的方向增加的厚度，台阶极可以提供必要的写入磁通量，同时避免不期望的泄漏和边缘。 为了形成本发明的阶梯式主极的实施例，可以使用氟基反应离子蚀刻（RIE）。 通过使用RIE来定义阶梯式主极，可以更好地控制顶角，并且可以实现紧密的边缘控制。

公开(公告)号：US08051552B2

公开(公告)日：2011-11-08

申请号：US11747704

申请日：2007-05-11

申请人： Ming Jiang ,  Yi Zheng

发明人： Ming Jiang ,  Yi Zheng

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3146 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A wrap around shield of a write head is fabricated in multiple processes, with side shields fabricated in one process, and a trailing shield formed in another process. These multiple processes form a stitched wrap around shield, resulting in more flexible and accurate placement of the trailing shield and side shields with respect to the write pole. These processes also independently form the dimensions (shapes and sizes) of the side shields and the trailing shield which allows better control of writeability, saturation, and adjacent track interference of the perpendicular recording write head.

摘要翻译： 写头的环绕屏蔽是以多个工艺制造的，其中在一个工艺中制造侧面屏蔽以及在另一个工艺中形成的后屏蔽。 这些多个过程形成围绕屏蔽的缝合缠绕，导致后屏蔽和侧屏相对于写极更灵活和精确地放置。 这些处理也独立地形成侧屏蔽和后屏蔽的尺寸（形状和尺寸），其允许更好地控制垂直记录写头的可写性，饱和度和相邻磁道干扰。

公开(公告)号：US07788796B2

公开(公告)日：2010-09-07

申请号：US11611824

申请日：2006-12-15

申请人： Wen-Chien David Hsiao ,  Ming Jiang ,  Vladimir Nikitin ,  Aron Pentek ,  Yi Zheng

发明人： Wen-Chien David Hsiao ,  Ming Jiang ,  Vladimir Nikitin ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3169 ,  G11B5/1278 ,  G11B5/3163 ,  G11B5/3166 ,  G11B5/3173 ,  G11B5/6005 ,  Y10T29/49021 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for constructing a magnetic write head using an electrical lapping guide to carefully control critical dimensions during a lapping operation used to define an air bearing surface. The lapping guide is photolithograhically patterned in a common photolithographic step with another write head structure so that special relation between the lapping guide and critical dimensions of the write head structure can be carefully maintained. The electrical lapping guide can be patterned in a common photolithographic step as the write pole so that the location of the flare point can be carefully controlled with respect to the location of the lapping guide. A stitched flare structure can also be built together with the electrical lapping guide, then a self-aligned shield can be further built over this stitched flare structure so that both flare point and shield throat can be controlled tightly together by this electrical lapping guide during lapping process.

摘要翻译： 一种用于在用于限定空气轴承表面的研磨操作期间使用电研磨引导件来构造磁性写入头以小心地控制临界尺寸的方法。 研磨导轨在具有另一写头结构的普通光刻步骤中以光刻方式进行图案化，从而可以仔细地保持研磨引导件与写头结构的临界尺寸之间的特殊关系。 电研磨引导件可以以普通光刻步骤图案化为写极，使得可以相对于研磨导轨的位置仔细地控制扩张点的位置。 缝合的火炬结构也可以与电气研磨导轨一起构建，然后可以在该缝合的火炬结构上进一步构建自对准屏蔽，使得在研磨过程中，电气研磨引导件可以将喇叭口和屏蔽喉部两者紧密地一起控制 处理。

公开(公告)号：US20080278861A1

公开(公告)日：2008-11-13

申请号：US11747704

申请日：2007-05-11

申请人： Ming Jiang ,  Yi Zheng

发明人： Ming Jiang ,  Yi Zheng

IPC分类号： G11B5/33 ,  G11B5/147 ,  B44C1/22

CPC分类号： G11B5/3146 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A wrap around shield of a write head is fabricated in multiple processes, with side shields fabricated in one process, and a trailing shield formed in another process. These multiple processes form a stitched wrap around shield, resulting in more flexible and accurate placement of the trailing shield and side shields with respect to the write pole. These processes also independently form the dimensions (shapes and sizes) of the side shields and the trailing shield which allows better control of writeability, saturation, and adjacent track interference of the perpendicular recording write head.

摘要翻译： 写头的环绕屏蔽是以多个工艺制造的，其中在一个工艺中制造侧面屏蔽以及在另一个工艺中形成的后屏蔽。 这些多个过程形成围绕屏蔽的缝合缠绕，导致后屏蔽和侧屏相对于写极更灵活和精确地放置。 这些处理也独立地形成侧屏蔽和后屏蔽的尺寸（形状和尺寸），其允许更好地控制垂直记录写头的可写性，饱和度和相邻磁道干扰。

公开(公告)号：US08268407B2

公开(公告)日：2012-09-18

申请号：US12206625

申请日：2008-09-08

申请人： Ming Jiang ,  Yi Zheng

发明人： Ming Jiang ,  Yi Zheng

IPC分类号： B05D3/00 ,  G11B5/127

CPC分类号： G11B5/3163 ,  G11B5/3116 ,  G11B5/3146

摘要： A method for manufacturing a write head having write pole with a tapered upper surface to improve the channeling of magnetic flux to a pole tip of the write pole. The method includes depositing a first layer of magnetic material over a substrate. A CMP stop layer, image transfer layer and mask structure are deposited over the first magnetic layer, the mask structure being formed with an edge located a desired distance from an air bearing surface plane. An ion milling operation is performed to remove portions of the magnetic layer that are not protected by the mask structure, the ion milling being performed in a manner to form a tapered surface on the first magnetic layer. Then, a second magnetic layer is deposited over the first magnetic layer to form a tapered magnetic write pole.

摘要翻译： 一种用于制造具有带锥形上表面的写极的写头的方法，以改善磁通量向写极的极尖的通道。 该方法包括在衬底上沉积第一层磁性材料。 CMP停止层，图像转印层和掩模结构沉积在第一磁性层上，掩模结构形成有位于距离空气轴承表面平面所需距离的边缘。 执行离子铣削操作以去除未被掩模结构保护的磁性层的部分，离子铣削以在第一磁性层上形成锥形表面的方式进行。 然后，在第一磁性层上沉积第二磁性层以形成锥形磁性写入极。

公开(公告)号：US20100157475A1

公开(公告)日：2010-06-24

申请号：US12342647

申请日：2008-12-23

申请人： Wen-Chien D. Hsiao ,  Ming Jiang ,  Sue S. Zhang ,  Yi Zheng

发明人： Wen-Chien D. Hsiao ,  Ming Jiang ,  Sue S. Zhang ,  Yi Zheng

IPC分类号： G11B5/127 ,  G03F7/20 ,  B44C1/22 ,  B32B37/14

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T156/10 ,  Y10T428/1171 ,  Y10T428/1186

摘要： A stepped main pole for a perpendicular write head and methods of making the stepped main pole. The stepped main pole has a main pole tip and a base portion. The main pole tip has a surface that forms part of the ABS and a first thickness. The base portion extends from the main pole tip and has a thickness that varies from the first thickness to a second thickness to form a slanted surface with an apex angle adjacent the main pole tip. By placing the base portion away from the ABS and providing a thickness that increases in a direction away from the ABS, the stepped pole can provide the necessary magnetic flux for writing, while avoiding undesired leakage and fringing. To form embodiments of the stepped main pole of the invention, a fluorine-based reactive ion etch (RIE) may be used. By using an RIE to define the stepped main pole, the apex angle can be better controlled and tight edge control can be achieved.

摘要翻译： 用于垂直写头的梯级主极和制作阶梯式主极的方法。 阶梯式主极具有主极尖和基部。 主极尖具有形成ABS的一部分的表面和第一厚度。 基部从主极尖延伸，并且具有从第一厚度变化到第二厚度的厚度，以形成邻近主极尖的顶角的倾斜表面。 通过将基座部分远离ABS并且提供沿离开ABS的方向增加的厚度，台阶极可以提供必要的写入磁通量，同时避免不期望的泄漏和边缘。 为了形成本发明的阶梯式主极的实施例，可以使用氟基反应离子蚀刻（RIE）。 通过使用RIE来定义阶梯式主极，可以更好地控制顶角，并且可以实现紧密的边缘控制。

公开(公告)号：US20100062177A1

公开(公告)日：2010-03-11

申请号：US12206625

申请日：2008-09-08

申请人： Ming Jiang ,  Yi Zheng

发明人： Ming Jiang ,  Yi Zheng

IPC分类号： B05D3/06

CPC分类号： G11B5/3163 ,  G11B5/3116 ,  G11B5/3146

摘要： A method for manufacturing a write head having write pole with a tapered upper surface to improve the channeling of magnetic flux to a pole tip of the write pole. The method includes depositing a first layer of magnetic material over a substrate. A CMP stop layer, image transfer layer and mask structure are deposited over the first magnetic layer, the mask structure being formed with an edge located a desired distance from an air bearing surface plane. An ion milling operation is performed to remove portions of the magnetic layer that are not protected by the mask structure, the ion milling being performed in a manner to form a tapered surface on the first magnetic layer. Then, a second magnetic layer is deposited over the first magnetic layer to form a tapered magnetic write pole.

摘要翻译： 一种用于制造具有带锥形上表面的写极的写头的方法，以改善磁通量向写极的极尖的通道。 该方法包括在衬底上沉积第一层磁性材料。 CMP停止层，图像转印层和掩模结构沉积在第一磁性层上，掩模结构形成有位于距离空气轴承表面平面所需距离的边缘。 执行离子铣削操作以去除未被掩模结构保护的磁性层的部分，离子铣削以在第一磁性层上形成锥形表面的方式进行。 然后，在第一磁性层上沉积第二磁性层以形成锥形磁性写入极。

公开(公告)号：US20070268625A1

公开(公告)日：2007-11-22

申请号：US11439297

申请日：2006-05-22

申请人： Ming Jiang ,  Aron Pentek ,  Yi Zheng

发明人： Ming Jiang ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/147 ,  G11B5/127

CPC分类号： G11B5/3143 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49021 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for constructing a magnetic write head for use in perpendicular magnetic recording, the write head having a write pole with a trailing shield. After forming a magnetic write pole such as by masking and ion milling a magnetic write pole layer, a thin layer of alumina is deposited. This is followed by the deposition of a thin layer of Rh. Then, a thick layer of alumina is deposited, having a thickness that is preferably at least equal to the height of the write pole layer. A chemical mechanical polish is then performed until a portion of the Rh layer over the top (trailing edge) of the write pole is exposed. A material removal process such as ion milling is then performed to remove the exposed Rh layer exposing the thin alumina layer there beneath. The exposed thin alumina layer over the trailing edge of the write pole can then either be removed or left intact to form a portion of a trailing shield gap layer. Another Rh layer can then be deposited to provide a non-magnetic trailing shield gap. A magnetic material is then deposited to form the trailing shield. Since the Rh trailing gap layer is electrically conductive it can also serve as a seed layer for electroplating the magnetic trailing shield.

摘要翻译： 一种用于构造用于垂直磁记录的磁写头的方法，该写头具有带后挡板的写极。 在通过掩蔽和离子铣削磁性写入磁极层形成磁性写入磁极之后，沉积薄层的氧化铝。 随后沉积一层薄薄​​的Rh。 然后，沉积厚的氧化铝层，其厚度优选至少等于写入极层的高度。 然后执行化学机械抛光，直到暴露在写柱的顶部（后缘）上的Rh层的一部分。 然后进行诸如离子研磨的材料去除工艺以除去暴露在其下面的薄氧化铝层的暴露的Rh层。 然后可以将写入极的后缘上的暴露的薄氧化铝层去除或保持不变，以形成后屏蔽间隙层的一部分。 然后可以沉积另一个Rh层以提供非磁性的后屏蔽间隙。 然后沉积磁性材料以形成尾部屏蔽。 由于Rh拖尾间隙层是导电的，所以它也可以用作用于电镀磁性后屏蔽的种子层。

公开(公告)号：US11321739B2

公开(公告)日：2022-05-03

申请号：US17174361

申请日：2021-02-12

申请人： David Quan He ,  Ming Jiang

发明人： David Quan He ,  Ming Jiang

IPC分类号： G06Q30/00 ,  G06Q30/02 ,  G06V20/56

摘要： A mobile advertisement system mounted on a back window of a vehicle using suction cups is presented according to aspects of present disclosure. In certain embodiments, the mobile advertisement system connects wirelessly to a mobile advertisement server, sends its GPS location updates periodically to mobile advertisement server, receives advertisements and delivery instructions from mobile advertisement server in response to the GPS location updates sent, displays advertisements on the display screen of the mobile advertisement system according to the corresponding delivery instructions when at least one automobile is detected, and transmits delivery confirmations to mobile advertisement server after each advertisement is displayed according to the corresponding delivery instructions. A video camera detects whether there are any automobile behind, and mobile advertisement system will not display advertisements when there is no automobile behind. brightness of advertisement display is in directly proportional to light intensity outside detected by a light sensor.

公开(公告)号：US10929887B2

公开(公告)日：2021-02-23

申请号：US15657196

申请日：2017-07-23

申请人： David Quan He ,  Ming Jiang

发明人： David Quan He ,  Ming Jiang

IPC分类号： G06Q30/02 ,  H04W4/02 ,  H04W4/21

摘要： The present disclosure relates to a mobile advertisement system and a method of advertisement using the mobile advertisement system. In certain embodiments, mobile advertisement system includes: a mobile advertisement server and one or more mobile advertisement delivery systems. The mobile advertisement server registers many advertisers and subscribers, receives various advertisements and their corresponding delivery instructions from advertisers, and dispatch advertisements and delivery instructions to the subscribers. Each of mobile advertisement delivery systems corresponds to one of registered subscribers, and is connected to mobile advertisement server. Each mobile advertisement delivery systems receive advertisements and delivery instructions from mobile advertisement server, and displays advertisements on respective mobile advertisement display device according to corresponding delivery instructions. Each delivery instruction corresponds to an advertisement, and includes: delivery time and delivery location. Each mobile advertisement delivery systems displays advertisements when it is positioned in a region specified by delivery location and during delivery time.