公开(公告)号：US20110279926A1

公开(公告)日：2011-11-17

申请号：US12777609

申请日：2010-05-11

申请人： Weimin Si ,  Yun-Fei Li ,  Ying Hong

发明人： Weimin Si ,  Yun-Fei Li ,  Ying Hong

IPC分类号： G11B5/187

CPC分类号： G11B5/1272 ,  G11B5/1278 ,  G11B5/1878 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49052

摘要： A method and system for fabricating magnetic transducer are described. The method and system include providing a main pole having a bottom and a top wider than the bottom. The method and system further include performing a high energy ion mill at an angle from a normal to the top of the main pole and at a first energy. The high energy ion mill removes a portion of the top of the main pole and exposes a top bevel surface for the main pole. The method and system also include performing a low energy ion mill at second energy and a glancing angle from the top bevel surface. The glancing angle is not more than fifteen degrees. The second energy is less than the first energy. The method and system also include depositing a nonmagnetic gap.

摘要翻译： 描述了用于制造磁换能器的方法和系统。 该方法和系统包括提供具有底部和顶部比底部更宽的主极。 所述方法和系统还包括以与主极顶部法线和第一能量成一角度地执行高能离子磨。 高能离子磨机去除主极顶部的一部分并暴露主极的顶部斜面。 该方法和系统还包括在第二能量下执行低能量离子磨，并从顶部斜面观察到扫掠角。 扫视角度不超过十五度。 第二能量小于第一能量。 该方法和系统还包括沉积非磁性间隙。

公开(公告)号：US08458892B2

公开(公告)日：2013-06-11

申请号：US12777609

申请日：2010-05-11

申请人： Weimin Si ,  Yun-Fei Li ,  Ying Hong

发明人： Weimin Si ,  Yun-Fei Li ,  Ying Hong

IPC分类号： G11B5/187

CPC分类号： G11B5/1272 ,  G11B5/1278 ,  G11B5/1878 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49052

摘要： A method for fabricating magnetic transducer is described. The method includes providing a main pole having a bottom and a top wider than the bottom. The method further includes performing a high energy ion mill at an angle from a normal to the to of the main pole and at a first energy. The high energy ion mill removes a portion of the top of the main pole and exposes a top bevel surface for the main pole. The method also includes performing a low energy ion mill at second energy and a glancing angle from the top bevel surface. The glancing angle is not more than fifteen degrees. The second energy is less than the first energy. The method and system also include depositing a nonmagnetic gap.

摘要翻译： 描述了制造磁换能器的方法。 该方法包括提供具有底部和顶部比底部更宽的主极。 该方法进一步包括以与主极的法线相对的角度以第一能量的角度执行高能离子磨。 高能离子磨机去除主极顶部的一部分并暴露主极的顶部斜面。 该方法还包括在第二能量下执行低能量离子磨，并从顶部斜面观察到扫掠角。 扫视角度不超过十五度。 第二能量小于第一能量。 该方法和系统还包括沉积非磁性间隙。

公开(公告)号：US08375564B1

公开(公告)日：2013-02-19

申请号：US12633562

申请日：2009-12-08

申请人： Guanghong Luo ,  Danning Yang ,  Weimin Si ,  Dujiang Wan ,  Yun-Fei Li ,  Lijie Guan ,  Ming Jiang

发明人： Guanghong Luo ,  Danning Yang ,  Weimin Si ,  Dujiang Wan ,  Yun-Fei Li ,  Lijie Guan ,  Ming Jiang

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method provides a pole of magnetic recording transducer. A nonmagnetic stop layer having a thickness and a top surface is provided. A depression that forms a bevel is provided in the stop layer. The bevel has a depth less than the thickness and a bevel angle with respect to a remaining portion of the top surface. The bevel angle is greater than zero and less than ninety degrees. An intermediate layer having a substantially flat top surface is provided over the stop layer. A trench is formed in the intermediate layer via a removal process. The trench has a profile corresponding to the pole. The stop layer is a stop for the removal process. The method also includes providing the pole in the trench. The pole has a leading edge bevel corresponding to the bevel in the stop layer.

摘要翻译： 一种方法提供磁记录传感器的极点。 提供具有厚度和顶表面的非磁性停止层。 形成斜面的凹陷设置在停止层中。 该斜面具有小于该厚度的深度和相对于顶部表面的剩余部分的斜角。 斜角大于零，小于九十度。 具有基本上平坦的顶表面的中间层设置在停止层上。 通过去除工艺在中间层中形成沟槽。 沟槽具有对应于极点的轮廓。 停止层是移除过程的停止点。 该方法还包括在沟槽中设置极点。 极具有对应于停止层中的斜面的前缘斜面。

公开(公告)号：US09349392B1

公开(公告)日：2016-05-24

申请号：US13480278

申请日：2012-05-24

申请人： Wanxue Zeng ,  Weimin Si ,  Ying Hong ,  Lieping Zhong

发明人： Wanxue Zeng ,  Weimin Si ,  Ying Hong ,  Lieping Zhong

IPC分类号： G11B5/187 ,  G11B5/31

CPC分类号： G11B5/1272 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/3116 ,  G11B5/3163

摘要： Various embodiments described herein provide for substrate structures including uniform plating seed layers, and that provide favorable adhesion on dielectric substrate layers. According to some embodiments, a methods for forming a magnetic recording pole is provided comprising: forming an insulator layer; forming a trench in the insulator layer; forming an amorphous seed layer over the insulator layer; forming an adhesion layer over the amorphous seed layer, the adhesion layer comprising a physical vapor deposited (PVD) noble metal; forming a plating seed layer over the adhesion layer, the plating seed layer comprising chemical vapor deposited (CVD) Ru; and forming a magnetic material layer over the plating seed layer.

摘要翻译： 本文描述的各种实施例提供了包括均匀电镀种子层的衬底结构，并且在电介质衬底层上提供有利的粘附。 根据一些实施例，提供了一种用于形成磁记录极的方法，包括：形成绝缘体层; 在绝缘体层中形成沟槽; 在所述绝缘体层上形成无定形晶种层; 在所述无定形种子层上形成粘合层，所述粘合层包括物理气相沉积（PVD）贵金属; 在粘附层上形成电镀种子层，包括化学气相沉积（CVD）Ru的电镀种子层; 以及在所述电镀种子层上形成磁性材料层。

公开(公告)号：US08533937B1

公开(公告)日：2013-09-17

申请号：US13275926

申请日：2011-10-18

申请人： Jinwen Wang ,  Weimin Si ,  Jianxin Fang ,  Ying Hong ,  Hongzhou Jiang ,  Ching-Huang Lu ,  Yan Chen ,  Donghong Li ,  Lien-Chang Wang ,  Lieping Zhong ,  Tao Pan

发明人： Jinwen Wang ,  Weimin Si ,  Jianxin Fang ,  Ying Hong ,  Hongzhou Jiang ,  Ching-Huang Lu ,  Yan Chen ,  Donghong Li ,  Lien-Chang Wang ,  Lieping Zhong ,  Tao Pan

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/112 ,  G11B5/1276 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3153 ,  G11B5/3163 ,  H04R31/00 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method or forming a wrapped-around shielded perpendicular magnetic recording writer pole is disclosed. A structure comprising a leading shield layer and an intermediate layer disposed over the leading shield layer is provided, the intermediate layer comprising a pole material and a dielectric material. A trench is formed in the dielectric material. A non-magnetic layer in the trench is removed via an ion beam etching process. A seed layer is deposited in the trench and over the pole material. A magnetic material comprising a side shield layer is deposited on at least a portion of the seed layer.

摘要翻译： 公开了一种方法或形成缠绕的屏蔽垂直磁记录写入极。 提供了包括引导屏蔽层和设置在引导屏蔽层之上的中间层的结构，所述中间层包括极材料和电介质材料。 在电介质材料中形成沟槽。 通过离子束蚀刻工艺去除沟槽中的非磁性层。 种子层沉积在沟槽中并在极材料上方。 包含侧屏蔽层的磁性材料沉积在籽晶层的至少一部分上。

公开(公告)号：US08670213B1

公开(公告)日：2014-03-11

申请号：US13422997

申请日：2012-03-16

申请人： Wanxue Zeng ,  Weimin Si ,  Ying Hong ,  Zhigang Bai

发明人： Wanxue Zeng ,  Weimin Si ,  Ying Hong ,  Zhigang Bai

IPC分类号： G11B5/23 ,  B44C1/22

CPC分类号： G11B5/232 ,  G11B5/235 ,  G11B5/3116 ,  G11B5/3163

摘要： A writer main pole for a perpendicular magnetic recording system is provided. The writer pole has a tunable bottom gap to side gap ratio, and may be formed using deposition of a first seed layer through an ion beam deposition process, deposition of a second seed layer through a physical vapor deposition process, and deposition of a non-magnetic gap layer through a chemical vapor deposition process.

摘要翻译： 提供了一种用于垂直磁记录系统的写入器主极。 写入器极具有可调节的底部间隙与侧面间隙比，并且可以通过通过离子束沉积工艺沉积第一种子层，通过物理气相沉积工艺沉积第二籽晶层， 磁隙层通过化学气相沉积工艺。

公开(公告)号：US08628672B1

公开(公告)日：2014-01-14

申请号：US13535091

申请日：2012-06-27

申请人： Weimin Si ,  Ying Hong ,  Zhigang Bai ,  Yunhe Huang ,  Fenglin Liu ,  Hong Zhang ,  Jikou Zhou ,  Xiaoyu Yang ,  Yuan Yao ,  Iulica Zana ,  Feng Liu ,  Ling Wang

发明人： Weimin Si ,  Ying Hong ,  Zhigang Bai ,  Yunhe Huang ,  Fenglin Liu ,  Hong Zhang ,  Jikou Zhou ,  Xiaoyu Yang ,  Yuan Yao ,  Iulica Zana ,  Feng Liu ,  Ling Wang

IPC分类号： B44C1/22

CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163

摘要： A method for fabricating a magnetic recording transducer having a magnetic writer pole with a short effective throat height is provided. In an embodiment, a writer structure comprising a magnetic writer pole having a trailing bevel and a nonmagnetic stack on the top surface of the writer pole is provided. A dielectric write gap layer comprising alumina is deposited over the trailing bevel section and the nonmagnetic stack; and at least one etch stop layer is deposited over the dielectric write gap layer. A layer of nonmagnetic fill material is deposited over the etch stop layer and to form a nonmagnetic bevel by performing a dry etch process. The etch stop layer(s) are removed from the short throat section; and a trailing shield is deposited over the short throat section, nonmagnetic bevel, and nonmagnetic stack top surface.

摘要翻译： 提供一种制造具有具有短的有效喉部高度的磁性写入极的磁记录换能器的方法。 在一个实施例中，提供了一种写入器结构，其包括在写入器极的顶表面上具有后斜面和非磁性堆叠的磁性写入极。 包含氧化铝的电介质写入间隙层沉积在后斜面部分和非磁性层上; 并且至少一个蚀刻停止层沉积在电介质写间隙层上。 一层非磁性填充材料沉积在蚀刻停止层上并通过执行干法蚀刻工艺形成非磁性斜面。 蚀刻停止层从短喉部分移除; 并且尾部屏蔽层沉积在短喉部分，非磁性斜面和非磁性堆叠顶表面上。

公开(公告)号：US06781425B2

公开(公告)日：2004-08-24

申请号：US10233862

申请日：2002-09-03

申请人： Weimin Si

发明人： Weimin Si

IPC分类号： H03L706

CPC分类号： H03L7/0896 ,  H03L7/18

摘要： A current-steering charge pump circuit and method for switch timing that reduces the amount of switching transients on an output current pulse produced by the charge pump. The current-steering type charge pump circuit includes four control signals, UP, UPB, DN and DNB. In order to produce an UP current pulse output signal, the UPB control signal is first asserted, followed by the UP control signal. After a period of time, which is proportional to the error signal that needs to be applied to a VCO, the UPB signal is first unasserted, followed by the UP signal. Similarly, to produce a DOWN current pulse output signal, a DN control is first asserted, followed by a DNB control signal. After a period of time, which is proportional to the error signal that needs to be applied to a VCO, the DN signal is first unasserted, followed by the DNB signal.

摘要翻译： 一种用于开关定时的电流导向电荷泵电路和方法，其减少由电荷泵产生的输出电流脉冲上的开关瞬变量。 电流导向型电荷泵电路包括四个控制信号，UP，UPB，DN和DNB。 为了产生UP电流脉冲输出信号，首先断言UPB控制信号，然后是UP控制信号。 在与需要施加到VCO的误差信号成比例的一段时间之后，UPB信号首先被无效，随后是UP信号。 类似地，为了产生DOWN电流脉冲输出信号，首先确定DN控制，然后是DNB控制信号。 在与需要施加到VCO的误差信号成比例的一段时间之后，DN信号首先被无效，其次是DNB信号。

公开(公告)号：US06894563B1

公开(公告)日：2005-05-17

申请号：US10422263

申请日：2003-04-24

申请人： Weimin Si

发明人： Weimin Si

IPC分类号： H03F3/45 ,  H03G1/00 ,  H03G3/12

CPC分类号： H03G1/007 ,  H03F3/45071

摘要： A technique for automatically controlling the gain of an amplifier by using a transistor as a voltage controlled variable degeneration resistor. The apparatus and method may be advantageously adapted for use in either voltage-to-current amplifiers or voltage-to-voltage amplifiers, single-ended or differential designs. One benefit of this technique is that, since the bias current is constant, the transistors operate in the correct region (i.e. the transistors are not biased out of the operating region). Additionally, the control mechanism is well-bounded.

摘要翻译： 通过使用晶体管作为电压可变退化电阻来自动控制放大器的增益的技术。 该装置和方法可以有利地适用于电压 - 电流放大器或电压 - 电压放大器，单端或差分设计。 该技术的一个好处在于，由于偏置电流是恒定的，所以晶体管在正确的区域中工作（即，晶体管不偏离工作区域）。 另外，控制机制是有界的。

公开(公告)号：US06345086B1

公开(公告)日：2002-02-05

申请号：US09395523

申请日：1999-09-14

申请人： Frank H. Ferrandino ,  Weimin Si ,  Douglas S. Holmes ,  Harvey T. Stone

发明人： Frank H. Ferrandino ,  Weimin Si ,  Douglas S. Holmes ,  Harvey T. Stone

IPC分类号： G01N23223

CPC分类号： G01N23/223 ,  G01N2223/076

摘要： The invention provides a system and method for microscopic X-ray fluorescence. An X-ray source, X-ray focusing element and a tapered X-ray opaque focusing aperture provide a focused X-ray spot on a sample. The system translates a sample between an imaging position and a testing position. In the imaging position, the sample is aligned in three dimensions and after alignment, the system automatically translates the sample between the imaging position and the testing position. To avoid collision between the sample and other elements of the system, a position detecting device terminates the sample translation if the sample trips the position detecting device. The focusing aperture of the system has a tapered through opening to block unfocused X-rays and reduce or eliminate a halo effect. To detect low atomic number elements, a detector aperture is vacuum sealed to an X-ray detector and X-ray elements of the system are vacuum evacuated.