公开(公告)号：US20070188936A1

公开(公告)日：2007-08-16

申请号：US11352676

申请日：2006-02-13

申请人： Kunliang Zhang ,  Daniel Abels ,  Min Li ,  Yu-Hsia Chen

发明人： Kunliang Zhang ,  Daniel Abels ,  Min Li ,  Yu-Hsia Chen

IPC分类号： G11B5/127 ,  G11B5/33

CPC分类号： G11B5/398 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3906 ,  H01L43/08 ,  H01L43/12 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： Concerns about inadequate electromigration robustness in CCP CPP GMR devices have been overcome by adding magnesium to the current confining structures that are presently in use. In one embodiment the alumina layer, in which the current carrying copper regions are embedded, is fully replaced by a magnesia layer. In other embodiments, alumina is still used but a layer of magnesium is included within the structure before it is subjected to ion assisted oxidation.

摘要翻译： 通过向当前使用的当前限制结构添加镁，克服了对CCP CPP GMR器件的电迁移鲁棒性不足的担忧。 在一个实施例中，其中载流电铜区域的氧化铝层被氧化镁层完全替代。 在其它实施方案中，仍然使用氧化铝，但在进行离子辅助氧化之前，该结构中包含一层镁。

公开(公告)号：US20070008656A1

公开(公告)日：2007-01-11

申请号：US11175932

申请日：2005-07-06

申请人： Yue Liu ,  Daniel Abels ,  Moris Dovek ,  Min Li ,  Pokang Wang ,  Mao-Min Chen

发明人： Yue Liu ,  Daniel Abels ,  Moris Dovek ,  Min Li ,  Pokang Wang ,  Mao-Min Chen

IPC分类号： G11B5/33

CPC分类号： G11B5/3929 ,  B82Y10/00 ,  G11B5/3133 ,  G11B2005/3996

摘要： The problem of increasing the output signal from a CCP-CPP GMR device without having it overheat has been overcome by placing materials that have different thermoelectric potentials on opposing sides of the spacer layer. Heat from the hot junction is removed at the substrate, which acts as a heat sink, resulting in a net local cooling of the confined current spacer layer, enabling it to operate at both higher input voltage increased reliability.

摘要翻译： 通过在间隔层的相对侧放置具有不同热电势的材料来克服增加来自CCP-CPP GMR器件而不使其过热的输出信号的问题。 来自热接点的热量在基板处被去除，其作为散热器，导致限流电流间隔层的局部局部冷却，使其能够在较高的输入电压增加的可靠性下工作。

公开(公告)号：US20050225897A1

公开(公告)日：2005-10-13

申请号：US10823098

申请日：2004-04-13

申请人： Kowang Liu ,  Daniel Abels

发明人： Kowang Liu ,  Daniel Abels

IPC分类号： G11B5/127 ,  G11B5/147 ,  G11B5/31 ,  G11B5/33 ,  H04R31/00

CPC分类号： G11B5/3106 ,  G11B5/3133 ,  Y10T29/49032 ,  Y10T29/49043

摘要： The Increased power needed to drive the write coil in a contemporary read-write magnetic head leads to greater thermal pole tip protrusion during writer activation. This problem has been overcome by including a heat diffuser on top of the return portion of the upper coils together with a thermally conductive pedestal that connects it to the substrate. During writer activation, the joule heating generated by the write current at the coils is extracted through the heat diffuser and subsequently dissipated in the substrate. The resulting lower temperature rise in the pole tip area leads to lower thermal protrusion.

摘要翻译： 驱动写入线圈在当代读写磁头中所需的增加的功率会在写入器激活期间导致更大的热极尖端突出。 通过在上部线圈的返回部分的顶部包括热扩散器以及将其连接到基板的导热基座来克服这个问题。 在写入器激活期间，通过热扩散器提取由线圈处的写入电流产生的焦耳加热，随后在衬底中消散。 由此产生的极尖区域的温度升高导致较低的热突起。