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1. 发明授权

US07170720B2 CPP read head for high density and shield noise suppression 失效
标题翻译： CPP读头用于高密度和屏蔽噪声抑制
公开(公告)号：US07170720B2
公开(公告)日：2007-01-30
申请号：US10650602
申请日：2003-08-28
申请人： Charles C. Lin , Min Li , Simon Liao
发明人： Charles C. Lin , Min Li , Simon Liao
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3912 , G11B2005/3996
摘要： It is known that the magnetic shields, between which CPP GMR stacks are sandwiched, can be a source of AMR (anisotropic magneto-resistance) noise. This has been significantly reduced by coating both the magnetic shields with highly conductive layers. If the guidelines disclosed in the invention are followed, the read head can exhibit AMR noise reduced by about 14 to 20. Additionally, the total thickness of the read gap can be maintained to be as low as 300 to 400 Angstroms.
摘要翻译：众所周知，其间夹有CPP GMR堆叠的磁屏蔽可以是AMR（各向异性磁阻）噪声的源。通过用高导电层涂覆两个磁屏蔽，这已经大大降低了。如果按照本发明公开的指导原则，读头可以显示降低约14至20的AMR噪声。此外，读取间隙的总厚度可以保持在低至300至400埃。

2. 发明授权

US07072151B2 Magnetic assist read track-width definition for a lead overlay top spin-valve GMR head 失效
公开(公告)号：US07072151B2
公开(公告)日：2006-07-04
申请号：US10782671
申请日：2004-02-19
申请人： Charles C. Lin , Cheng T. Horng , Min Li , Kochan Ju
发明人： Charles C. Lin , Cheng T. Horng , Min Li , Kochan Ju
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3163 , G11B5/3903 , G11B2005/3996 , Y10T29/49044 , Y10T29/49046 , Y10T29/49052
摘要： A method for forming a top spin-valve SyAP GMR read sensor having a novel conductive lead overlay configuration and the sensor so formed. The lead overlay electrically contacts the sensor at a position within the SyAP pinned layer, thus simultaneously assuring improved electrical contact and destroying the GMR properties of the sensor at the junction to improve the definition of the sensor track width.

3. 发明申请

US20080218911A1 CPP with elongated pinned layer 有权
公开(公告)号：US20080218911A1
公开(公告)日：2008-09-11
申请号：US12152914
申请日：2008-05-19
申请人： Charles C. Lin , Min Li
发明人： Charles C. Lin , Min Li
IPC分类号： G11B5/127
CPC分类号： G11B5/127 , G11B5/187
摘要： CPP magnetic read head designs have been improved by increasing the length of the AFM layer relative to that of both the free and spacer layers. The length of the pinned layer is also increased, but by a lesser amount, an abutting conductive layer being inserted to fill the remaining space over the AFM layer. The extended pinned layer increases the probability of spin interaction while the added conducting layer serves to divert sensor current away from the bottom magnetic shield which now is no longer needed for use as a lead.

4. 发明授权

US06729014B2 Magnetic assist read track-width definition for a lead overlay top spin-valve GMR head 失效
标题翻译：磁辅助读取磁道宽度定义用于引导覆盖顶部自旋阀GMR磁头
公开(公告)号：US06729014B2
公开(公告)日：2004-05-04
申请号：US09953542
申请日：2001-09-17
申请人： Charles C. Lin , Cheng T. Horng , Min Li , Kochan Ju
发明人： Charles C. Lin , Cheng T. Horng , Min Li , Kochan Ju
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3163 , G11B5/3903 , G11B2005/3996 , Y10T29/49044 , Y10T29/49046 , Y10T29/49052
摘要： A method for forming a top spin-valve SyAP GMR read sensor having a novel conductive lead overlay configuration and the sensor so formed. The lead overlay electrically contacts the sensor at a position within the SyAP pinned layer, thus simultaneously assuring improved electrical contact and destroying the GMR properties of the sensor at the junction to improve the definition of the sensor track width.
摘要翻译：一种用于形成具有新型导电引线覆盖结构的顶部自旋阀SyAP GMR读取传感器的方法和如此形成的传感器。引线覆盖层在SyAP钉扎层内的位置处电传感器接触传感器，从而同时确保改善的电接触并破坏传感器在接合处的GMR性能，以改善传感器轨道宽度的定义。

5. 发明授权

US07978441B2 CPP with elongated pinned layer 有权
公开(公告)号：US07978441B2
公开(公告)日：2011-07-12
申请号：US12152914
申请日：2008-05-19
申请人： Charles C. Lin , Min Li
发明人： Charles C. Lin , Min Li
IPC分类号： G11B5/33
CPC分类号： G11B5/127 , G11B5/187
摘要： CPP magnetic read head designs have been improved by increasing the length of the AFM layer relative to that of both the free and spacer layers. The length of the pinned layer is also increased, but by a lesser amount, an abutting conductive layer being inserted to fill the remaining space over the AFM layer. The extended pinned layer increases the probability of spin interaction while the added conducting layer serves to divert sensor current away from the bottom magnetic shield which now is no longer needed for use as a lead.

6. 发明授权

US07382589B2 CPP with elongated pinned layer 有权
标题翻译： CPP具有细长的钉扎层
公开(公告)号：US07382589B2
公开(公告)日：2008-06-03
申请号：US10991583
申请日：2004-11-18
申请人： Charles C. Lin , Min Li
发明人： Charles C. Lin , Min Li
IPC分类号： G11B5/33 , B11B5/127
CPC分类号： G11B5/127 , G11B5/187
摘要： CPP magnetic read head designs have been improved by increasing the length of the AFM layer relative to that of both the free and spacer layers. The length of the pinned layer is also increased, but by a lesser amount, an abutting conductive layer being inserted to fill the remaining space over the AFM layer. The extended pinned layer increases the probability of spin interaction while the added conducting layer serves to divert sensor current away from the bottom magnetic shield which now is no longer needed for use as a lead.
摘要翻译：通过增加AFM层的长度相对于游离层和间隔层的长度，已经改善了CPP磁读头设计。被钉扎层的长度也增加，但是由于较少的量，插入邻接导电层以填充AFM层上的剩余空间。扩展的钉扎层增加了自旋相互作用的可能性，而添加的导电层用于使传感器电流远离底部磁屏蔽，现在不再需要用作引线。

7. 发明授权

US07919139B2 CPP with elongated pinned layer 有权
标题翻译： CPP具有细长的钉扎层
公开(公告)号：US07919139B2
公开(公告)日：2011-04-05
申请号：US12152910
申请日：2008-05-19
申请人： Charles C. Lin , Min Li
发明人： Charles C. Lin , Min Li
IPC分类号： B05D5/12 , G11B5/33
CPC分类号： G11B5/127 , G11B5/187
摘要： CPP magnetic read head designs have been improved by increasing the length of the AFM layer relative to that of both the free and spacer layers. The length of the pinned layer is also increased, but by a lesser amount, an abutting conductive layer being inserted to fill the remaining space over the AFM layer. The extended pinned layer increases the probability of spin interaction while the added conducting layer serves to divert sensor current away from the bottom magnetic shield which now is no longer needed for use as a lead.
摘要翻译：通过增加AFM层的长度相对于游离层和间隔层的长度，已经改善了CPP磁读头设计。被钉扎层的长度也增加，但是由于较少的量，插入邻接导电层以填充AFM层上的剩余空间。扩展的钉扎层增加了自旋相互作用的可能性，而添加的导电层用于使传感器电流远离底部磁屏蔽，现在不再需要用作引线。

8. 发明申请

US20080220156A1 CPP with elongated pinned layer 有权
公开(公告)号：US20080220156A1
公开(公告)日：2008-09-11
申请号：US12152910
申请日：2008-05-19
申请人： Charles C. Lin , Min Li
发明人： Charles C. Lin , Min Li
IPC分类号： B05D5/12
CPC分类号： G11B5/127 , G11B5/187
摘要： CPP magnetic read head designs have been improved by increasing the length of the AFM layer relative to that of both the free and spacer layers. The length of the pinned layer is also increased, but by a lesser amount, an abutting conductive layer being inserted to fill the remaining space over the AFM layer. The extended pinned layer increases the probability of spin interaction while the added conducting layer serves to divert sensor current away from the bottom magnetic shield which now is no longer needed for use as a lead.

9. 发明授权

US5635037A Method of texture by in-situ masking and etching for thin film magnetic recording medium 失效
标题翻译：通过原位掩蔽和蚀刻薄膜磁记录介质的纹理方法
公开(公告)号：US5635037A
公开(公告)日：1997-06-03
申请号：US101456
申请日：1993-08-02
申请人： Jau-Jier Chu , Chung-Yu Ting , Oliver J. Horng , Jye-Yen Cheng , Charles C. Lin , Mei-Rurng Tseng
发明人： Jau-Jier Chu , Chung-Yu Ting , Oliver J. Horng , Jye-Yen Cheng , Charles C. Lin , Mei-Rurng Tseng
IPC分类号： G11B5/84 , C23C14/00
CPC分类号： G11B5/8404 , G11B5/8408
摘要： A magnetic recording medium controllably textured by performing sputter etching or reactive ion etching either on the surface of a smooth substrate, which can be nickel-phosphorous/aluminum-magnesium (Al--Mg) substrate, or on the surface of a protective layer, such as a carbon overcoat. Both types of etching processes described above are carried out in a sputtering apparatus and have an etching mask of discrete hemi-spherical structures formed by the agglomeration of a low melting point metal or alloy such as indium or Pb--Sn, which has been deposited on a non-wetting surface such as the oxidized surface of NiP layer or the protective carbon overcoat prior to etching. The morphology of the textured surface can be controlled by adjusting the average thickness of the deposited masking materials, the gas composition, as well as the base pressure during etching. An optimum texture created by either sputter etching or reactive ion etching on a magnetic recording medium provides better wear resistance and a lower flying height of a magnetic head as compared to conventional mechanical texturing techniques. In addition, the manufacturing processes of the magnetic recording medium thus defined including the deposition of underlayer, magnetic layer and protective overcoat and the creation of surface texture can be successively performed within a single vacuum system without breaking vacuum; the present invention thus possesses the advantages of process automation, improving quality, and lowering manufacturing cost.
摘要翻译：通过在可以是镍 - 磷/铝 - 镁（Al-Mg）衬底的光滑衬底的表面上或在保护层的表面上执行溅射蚀刻或反应离子蚀刻来控制地纹理的磁记录介质，例如作为碳外套。上述两种类型的蚀刻工艺在溅射装置中进行，并具有通过低熔点金属或诸如铟或Pb-Sn的合金（例如铟或Pb-Sn）的聚集而形成的离散半球形结构的蚀刻掩模，其已沉积在非浸润表面，例如NiP层的氧化表面或蚀刻前的保护性碳外涂层。纹理表面的形态可以通过调节沉积的掩模材料的平均厚度，气体组成以及蚀刻期间的基底压力来控制。与常规机械纹理技术相比，通过溅射蚀刻或反应离子蚀刻在磁记录介质上产生的最佳纹理提供了更好的耐磨性和较低的磁头飞行高度。此外，可以在单个真空系统内连续地进行包括底层沉积，磁性层和保护外涂层的磁记录介质的制造过程，而不破坏真空; 因此本发明具有过程自动化，提高质量和降低制造成本的优点。

10. 发明授权

US06821717B2 Process to form narrow write track for magnetic recording 失效
标题翻译：形成用于磁记录的窄写轨的过程
公开(公告)号：US06821717B2
公开(公告)日：2004-11-23
申请号：US10210955
申请日：2002-08-02
申请人： Charles C. Lin , Kochan Ju , Jeiwei Chang
发明人： Charles C. Lin , Kochan Ju , Jeiwei Chang
IPC分类号： G11B531
CPC分类号： C25D5/022 , Y10T29/49032
摘要： As the recording density of magnetic disk drives approaches 100 Gbits/in2, write track lengths of about 0.10 microns will be required. This cannot be accomplished using conventional photolithography. The present invention solves this problem by first forming on the bottom pole of the write head a cavity in a layer of photoresist, using conventional means. A seed layer of non-magnetic material is electrolessly laid down, following which a second layer of photoresist is deposited and patterned to form a second cavity that symmetrically surrounds the first one, thereby forming a mold around it. Ferromagnetic metal is then electro-deposited in this mold to form the top magnetic pole. Following the removal of all photoresist and a brief selective etch of the bottom pole, an extremely narrow write head is obtained.
摘要翻译：由于磁盘驱动器的记录密度接近100G比特/英寸，所以需要大约0.10微米的写入磁道长度。这不能用常规的光刻法来实现。本发明通过使用常规方法首先在写入头的底极上形成光致抗蚀剂层中的空腔来解决这个问题。非磁性材料的籽晶层被无电镀敷，随后沉积第二层光致抗蚀剂并图案化以形成对称地围绕第一腔的第二腔，从而在其周围形成模具。然后将铁磁金属电沉积在该模具中以形成顶部磁极。除去所有光致抗蚀剂和对底极进行短暂的选择性蚀刻之后，获得极窄的写入头。

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