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    • 35. 发明授权
    • Laminated high moment film for head applications
    • 用于头部应用的层压高力矩胶片
    • US08329320B2
    • 2012-12-11
    • US12291715
    • 2008-11-13
    • Kunliang ZhangMin LiMin ZhengFenglin LiuXiaomin Liu
    • Kunliang ZhangMin LiMin ZhengFenglin LiuXiaomin Liu
    • G11B5/31G11B5/127
    • G11B5/3116G11B5/1278Y10T428/11Y10T428/115Y10T428/1171
    • A laminated high moment film with a non-AFC configuration is disclosed that can serve as a seed layer for a main pole layer or as the main pole layer itself in a PMR writer. The laminated film includes a plurality of (B/M) stacks where B is an alignment layer and M is a high moment layer. Adjacent (B/M) stacks are separated by an amorphous layer that breaks the magnetic coupling between adjacent high moment layers and reduces remanence in a hard axis direction while maintaining a high magnetic moment and achieving low values for Hch, Hce, and Hk. The amorphous material layer may be made of an oxide, nitride, or oxynitride of one or more of Hf, Zr, Ta, Al, Mg, Zn, Ti, Cr, Nb, or Si, or may be Hf, Zr, Ta, Nb, CoFeB, CoB, FeB, or CoZrNb. Alignment layers are FCC soft ferromagnetic materials or non-magnetic FCC materials.
    • 公开了一种具有非AFC配置的叠层高力矩薄膜,其可用作主磁极层的种子层或作为PMR写入器中的主极点本身。 层叠膜包括多个(B / M)堆叠,其中B是取向层,M是高力矩层。 相邻的(B / M)堆叠被非晶层隔开,其破坏相邻高力矩层之间的磁耦合,并且在保持高磁矩并且实现Hch,Hce和Hk的低值的同时降低硬轴方向的剩磁。 非晶材料层可以由Hf,Zr,Ta,Al,Mg,Zn,Ti,Cr,Nb或Si中的一种或多种的氧化物,氮化物或氮氧化物制成,或者可以是Hf,Zr,Ta, Nb,CoFeB,CoB,FeB或CoZrNb。 对准层是FCC软铁磁材料或非磁性FCC材料。
    • 37. 发明授权
    • Ta/W film as heating device for dynamic fly height adjustment
    • Ta / W薄膜作为动态飞行高度调节的加热装置
    • US08054583B2
    • 2011-11-08
    • US12215825
    • 2008-06-30
    • Min ZhengMin LiChen-Jung ChienKowang LiuSung Chung
    • Min ZhengMin LiChen-Jung ChienKowang LiuSung Chung
    • G11B5/147
    • G11B5/314G11B5/6064
    • A dynamic fly heater (DFH) for improved lifetime and better film uniformity is disclosed for a magnetic head. The heater has a lower amorphous Ta layer and an upper W layer to promote small grain size and reduced electro-migration. The composite film is especially advantageous for heaters greater than 1000 Angstroms thick where dR/R is difficult to control in the prior art. The DFH may be a (Ta/W)n laminate in which the Ta layers are about 30 Angstroms thick and the combined thickness of the W layers is from 400 to 1200 Angstroms. A Ta film is preferably sputter deposited with an Ar pressure of 3 to 5 mTorr and the W film is sputter deposited in the same chamber with a 3 to 20 mTorr Ar pressure. In one embodiment, a merged read/write head has one DFH in the read head and a second DFH in the write head.
    • 公开了一种用于改善寿命和更好的膜均匀性的动态飞行加热器(DFH)。 加热器具有较低的非晶Ta层和上W层,以促进小晶粒尺寸和减少的电迁移。 复合膜对于现有技术中dR / R难以控制的大于1000埃的加热器是特别有利的。 DFH可以是(Ta / W)n层叠体,其中Ta层的厚度约为30埃,W层的组合厚度为400至1200埃。 优选以3至5mTorr的Ar压力溅射沉积Ta膜,并将W膜以3至20mTorr Ar压力溅射沉积在相同的室中。 在一个实施例中,合并的读/写头在读头中具有一个DFH,在写头中具有第二DFH。
    • 38. 发明申请
    • Method for fabricating a high coercivity hard bias structure for magnetoresistive sensor
    • 用于制造用于磁阻传感器的高矫顽力硬偏置结构的方法
    • US20100276272A1
    • 2010-11-04
    • US12387377
    • 2009-05-01
    • Min ZhengKunliang ZhangMin Li
    • Min ZhengKunliang ZhangMin Li
    • C23C14/34G11B5/127
    • C23C14/5833C23C14/025C23C14/14C23C14/5873G01R33/098G11B5/3163G11B5/3932
    • A hard bias (HB) structure for longitudinally biasing a free layer in a MR sensor is disclosed that includes a mildly etched seed layer and a hard bias (HB) layer on the etched seed layer. The HB layer may contain one or more HB sub-layers stacked on a lower sub-layer which contacts the etched seed layer. Each HB sub-layer is mildly etched before depositing another HB sub-layer thereon. The etch may be performed in an IBD chamber and creates a higher concentration of nucleation sites on the etched surface thereby promoting a smaller HB average grain size than would be realized with no etch treatments. A smaller HB average grain size is responsible for increasing Hcr in a CoPt HB layer to as high as 2500 to 3000 Oe. Higher Hcr is achieved without changing the seed layer or HB material and without changing the thickness of the aforementioned layers.
    • 公开了用于纵向偏置MR传感器中的自由层的硬偏置(HB)结构,其包括在蚀刻的种子层上的温和蚀刻的种子层和硬偏置(HB)层。 HB层可以包含堆叠在与蚀刻的种子层接触的下子层上的一个或多个HB子层。 每个HB子层在其上沉积另一个HB子层之前被轻度蚀刻。 蚀刻可以在IBD室中进行,并且在蚀刻表面上产生更高浓度的成核位点,从而促进比无蚀刻处理实现的更小的HB平均晶粒尺寸。 较小的HB平均粒径负责将CoPt HB层中的Hcr增加到高达2500至3000 Oe。 在不改变种子层或HB材料而不改变上述层的厚度的情况下实现更高的Hcr。
    • 39. 发明申请
    • Laminated high moment film for head applications
    • 用于头部应用的层压高力矩胶片
    • US20100119874A1
    • 2010-05-13
    • US12291715
    • 2008-11-13
    • Kunliang ZhangMin LiMin ZhengFenglin LiuXiaomin Liu
    • Kunliang ZhangMin LiMin ZhengFenglin LiuXiaomin Liu
    • G11B5/33C23C14/34
    • G11B5/3116G11B5/1278Y10T428/11Y10T428/115Y10T428/1171
    • A laminated high moment film with a non-AFC configuration is disclosed that can serve as a seed layer for a main pole layer or as the main pole layer itself in a PMR writer. The laminated film includes a plurality of (B/M) stacks where B is an alignment layer and M is a high moment layer. Adjacent (B/M) stacks are separated by an amorphous layer that breaks the magnetic coupling between adjacent high moment layers and reduces remanence in a hard axis direction while maintaining a high magnetic moment and achieving low values for Hch, Hce, and Hk. The amorphous material layer may be made of an oxide, nitride, or oxynitride of one or more of Hf, Zr, Ta, Al, Mg, Zn, Ti, Cr, Nb, or Si, or may be Hf, Zr, Ta, Nb, CoFeB, CoB, FeB, or CoZrNb. Alignment layers are FCC soft ferromagnetic materials or non-magnetic FCC materials.
    • 公开了一种具有非AFC配置的叠层高力矩薄膜,其可用作主磁极层的种子层或作为PMR写入器中的主极点本身。 层叠膜包括多个(B / M)堆叠,其中B是取向层,M是高力矩层。 相邻(B / M)堆叠被非晶层隔开,其破坏相邻高力矩层之间的磁耦合,并且在保持高磁矩并且实现Hch,Hce和Hk的低值的同时降低硬轴方向的剩磁。 非晶材料层可以由Hf,Zr,Ta,Al,Mg,Zn,Ti,Cr,Nb或Si中的一种或多种的氧化物,氮化物或氮氧化物制成,或者可以是Hf,Zr,Ta, Nb,CoFeB,CoB,FeB或CoZrNb。 对准层是FCC软铁磁材料或非磁性FCC材料。
    • 40. 发明申请
    • Method of preventing white blood cell interferences to red blood cell measurements of a blood sample
    • 防止白细胞干扰血液样本红细胞测量的方法
    • US20070054403A1
    • 2007-03-08
    • US11210346
    • 2005-08-24
    • Min ZhengJing LiYi LiMichael Switzer
    • Min ZhengJing LiYi LiMichael Switzer
    • G01N33/48
    • G01N33/491Y10T436/10Y10T436/101666Y10T436/107497Y10T436/25Y10T436/25125
    • Methods of prevention and correction of white blood cell interferences to the measurements of mean cell volume (MCV), red blood cell concentration (RBC) and hematocrit (Hct) of a blood sample are disclosed. The interference to MCV can be prevented by identifying a valley between the red blood cell and white blood cell modes on the red blood cell distribution histogram, defining a red blood cell region using the valley and calculating MCV within the defined region. Alternatively, a curve fit of the white blood cell population on the red blood cell distribution histogram can be used to exclude the white blood cells. RBC can be corrected by subtracting the white blood cell concentration obtained from the analysis of a second aliquot sample, when the white blood cell concentration (WBC) exceeds a predetermined criterion. Hct of the blood sample can be calculated using the obtained MCV and RBC.
    • 公开了对血液样本的平均细胞体积(MCV),红细胞浓度(RBC)和血细胞比容(Hct)的测量的白细胞干扰的预防和校正方法。 通过在红细胞分布直方图上识别红细胞和白细胞模式之间的谷,可以防止对MCV的干扰,使用谷定义红细胞区域并计算定义区域内的MCV。 或者,可以使用白细胞群体对红细胞分布直方图的曲线拟合来排除白细胞。 当白细胞浓度(WBC)超过预定标准时,可通过减去从第二等份样品的分析获得的白细胞浓度来校正RBC。 可以使用获得的MCV和RBC计算血液样品的Hct。