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1. 发明申请

US20090061258A1 CPP-TYPE MAGNETORESISTANCE EFFECT ELEMENT HAVING CHARACTERISTIC FREE LAYERS 审中-公开
标题翻译：具有特征自由层的CPP型磁阻效应元件
公开(公告)号：US20090061258A1
公开(公告)日：2009-03-05
申请号：US11847521
申请日：2007-08-30
申请人： Tomohito MIZUNO , Yoshihiro TSUCHIYA , Shinji HARA , Koji SHIMAZAWA , Tsutomu CHOU
发明人： Tomohito MIZUNO , Yoshihiro TSUCHIYA , Shinji HARA , Koji SHIMAZAWA , Tsutomu CHOU
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , G01R33/093 , G11B5/3932 , Y10T428/1129
摘要： A magnetic field detecting element comprises: a stack which includes first, second and third magnetic layers whose magnetization directions change in accordance with an external magnetic field, a first non-magnetic intermediate layer which is sandwiched between the first magnetic layer and the second magnetic layer, the first non-magnetic intermediate layer producing a magnetoresistance effect between the first magnetic layer and the second magnetic layer, and a second non-magnetic intermediate layer which is sandwiched between the second magnetic layer and the third magnetic layer, the second non-magnetic intermediate layer allowing the second magnetic layer and the third magnetic layer to be exchange-coupled such that magnetization directions thereof are anti-parallel to each other under no magnetic field, the stack being adapted such that sense current flows in a direction that is perpendicular to a film surface thereof; and a bias magnetic layer which is provided on a side of the stack, the side being opposite to an air bearing surface of the stack, the bias magnetic layer applying a bias magnetic field to the stack in a direction that is perpendicular to the air bearing surface.
摘要翻译：磁场检测元件包括：堆叠，其包括其磁化方向根据外部磁场而变化的第一，第二和第三磁性层，夹在第一磁性层和第二磁性层之间的第一非磁性中间层在第一磁性层和第二磁性层之间产生磁阻效应的第一非磁性中间层和夹在第二磁性层和第三磁性层之间的第二非磁性中间层，第二非磁性中间层中间层，允许第二磁性层和第三磁性层交换耦合，使得其磁化方向在没有磁场的情况下彼此反平行，所述堆叠适于使得感测电流沿垂直于其膜表面; 以及偏置磁性层，其设置在所述堆叠的一侧，所述侧面与所述堆叠的空气支承表面相对，所述偏置磁性层沿垂直于所述空气轴承的方向向所述堆叠施加偏置磁场表面。

2. 发明申请

US20090128965A1 CPP MAGNETO-RESISTIVE ELEMENT PROVIDED WITH A PAIR OF MAGNETIC LAYERS AND NICR BUFFER LAYER 审中-公开
标题翻译： CPP磁电元件提供一对磁性层和NICR缓冲层
公开(公告)号：US20090128965A1
公开(公告)日：2009-05-21
申请号：US11940511
申请日：2007-11-15
申请人： Tomohito MIZUNO , Yoshihiro TSUCHIYA , Shinji HARA , Koji SHIMAZAWA , Daisuke MIYAUCHI , Takahiko MACHITA , Tsutomu CHOU , Toshiyuki AYUKAWA , Hironobu MATSUZAWA , Tsuyoshi ICHIKI
发明人： Tomohito MIZUNO , Yoshihiro TSUCHIYA , Shinji HARA , Koji SHIMAZAWA , Daisuke MIYAUCHI , Takahiko MACHITA , Tsutomu CHOU , Toshiyuki AYUKAWA , Hironobu MATSUZAWA , Tsuyoshi ICHIKI
IPC分类号： G11B5/33
CPC分类号： G11B5/3912 , B82Y25/00 , G01R33/093 , G11B5/3906 , G11B5/3932 , H01L43/10
摘要： A magnetic field detecting element has a stack which includes a NiCr layer, a first magnetic layer whose magnetization direction varies in accordance with an external magnetic field, a non-magnetic spacer layer, and a second magnetic layer whose magnetization direction varies in accordance with the external magnetic field, said NiCr layer, said first magnetic layer, said spacer layer and said second magnetic layer being disposed in this order and being arranged in contact with each other, wherein a sense current is adapted to flow in a direction that is perpendicular to a film surface of said stack; and a bias magnetic layer which is disposed on a side of said stack, said side being opposite to an air bearing surface of said stack, wherein said bias magnetic layer is adapted to apply a bias magnetic field to said stack in a direction that is perpendicular to said air bearing surface. Both first and second magnetic layers have bcc crystalline structures, and said non-magnetic spacer layer has a film configuration in which an insulating layer or a semiconductor layer is inserted into a metal layer.
摘要翻译：磁场检测元件具有堆叠，其包括NiCr层，其磁化方向根据外部磁场变化的第一磁性层，非磁性间隔层和其磁化方向根据外部磁场，所述NiCr层，所述第一磁性层，所述间隔层和所述第二磁性层按此顺序设置并且彼此接触，其中感测电流适于沿垂直于所述堆叠的膜表面; 以及偏置磁性层，其设置在所述堆叠的一侧，所述侧面与所述堆叠的空气支承表面相对，其中所述偏置磁性层适于在垂直方向上向所述堆叠施加偏置磁场到所述空气轴承表面。第一和第二磁性层都具有bcc晶体结构，并且所述非磁性间隔层具有绝缘层或半导体层插入到金属层中的膜结构。

3. 发明申请

US20080106827A1 MAGNETO-RESISTIVE EFFECT DEVICE, THIN-FILM MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY, AND HARD DISK SYSTEM 有权
标题翻译：磁阻效应器件，薄膜磁头，头盖组件和硬盘系统
公开(公告)号：US20080106827A1
公开(公告)日：2008-05-08
申请号：US11931219
申请日：2007-10-31
申请人： Koji SHIMAZAWA , Yoshihiro Tsuchiya , Tomohito Mizuno , Kei Hirata
发明人： Koji SHIMAZAWA , Yoshihiro Tsuchiya , Tomohito Mizuno , Kei Hirata
IPC分类号： G11B5/33
CPC分类号： G11B5/39 , B82Y25/00 , B82Y40/00 , G01R33/093 , G11B5/3906 , G11B5/3993 , H01F10/3272 , H01F41/306 , H01L43/08
摘要： The invention provides a CPP-GMR device comprising a spacer layer. The spacer layer comprises a first nonmagnetic metal layer and a second nonmagnetic metal layer, each formed of a nonmagnetic metal material, and a semiconductor layer interposed between the first nonmagnetic metal layer and the second nonmagnetic metal layer, and further comprises a work function control layer formed between the first nonmagnetic metal layer and the semiconductor layer and/or between the second nonmagnetic metal layer and the semiconductor layer. The semiconductor layer is an n-type semiconductor, and the work function control layer is made of a material having a work function smaller than that of said first nonmagnetic metal layer, and said second nonmagnetic metal layer. It is thus possible to obtain by far more improved advantages: the semiconductor layer forming a part of the spacer layer can be so thicker than ever while keeping the area resistivity of the device low as desired, ever higher MR performance is achievable, and the variation of the area resistivity of the device can be substantially held back with much more improvements in film performance.
摘要翻译：本发明提供一种包括间隔层的CPP-GMR装置。间隔层包括由非磁性金属材料形成的第一非磁性金属层和第二非磁性金属层，以及介于第一非磁性金属层和第二非磁性金属层之间的半导体层，还包括功函数控制层形成在第一非磁性金属层和半导体层之间和/或第二非磁性金属层与半导体层之间。半导体层是n型半导体，功函数控制层由功函数小于所述第一非磁性金属层的功函数和所述第二非磁性金属层构成。因此，可以获得更多的改进的优点：形成间隔层的一部分的半导体层可以比以往更厚，同时保持器件的面积电阻率低，可以实现更高的MR性能，并且变化可以基本上阻止装置的面积电阻率，同时具有更多的薄膜性能的改进。

4. 发明申请

US20080218907A1 MAGNETO-RESISTANCE EFFECT ELEMENT AND THIN-FILM MAGNETIC HEAD 有权
标题翻译：磁阻效应元件和薄膜磁头
公开(公告)号：US20080218907A1
公开(公告)日：2008-09-11
申请号：US11682421
申请日：2007-03-06
申请人： Tomohito MIZUNO , Kei HIRATA , Yoshihiro TSUCHIYA , Koji SHIMAZAWA
发明人： Tomohito MIZUNO , Kei HIRATA , Yoshihiro TSUCHIYA , Koji SHIMAZAWA
IPC分类号： G11B5/39
CPC分类号： G11B5/59683
摘要： A magneto-resistance effect element (MR element) used for a thin film magnetic head is configured by a buffer layer, an anti-ferromagnetic layer, a pinned layer, a spacer layer, a free layer, and a cap layer, which are laminated in this order, and a sense current flows through the element in a direction orthogonal to the layer surface, via a lower shield layer and a upper shield layer. The pinned layer comprises an outer layer in which a magnetization direction is fixed, a non-magnetic intermediate layer, and an inner layer which is a ferromagnetic layer. The spacer layer comprises a first non-magnetic metal layer, a semiconductor layer, and a second non-magnetic metal layer. The first non-magnetic metal layer and the second non-magnetic metal layer comprise CuPt films having a thickness ranging from a minimum of 0.2 nm to a maximum of 2.0 nm, and the Pt content ranges from a minimum of 5 at % to a maximum of 25 at %. The semiconductor layer comprises a ZnO film, ZnS film, or GaN film having a thickness ranging from a minimum of 1.0 nm to a maximum of 2.5 nm.
摘要翻译：用于薄膜磁头的磁阻效应元件（MR元件）由层叠的缓冲层，反铁磁层，钉扎层，间隔层，自由层和覆盖层构成并且感测电流经由下屏蔽层和上屏蔽层沿着与层表面正交的方向流过元件。被钉扎层包括其中磁化方向固定的外层，非磁性中间层和作为铁磁层的内层。间隔层包括第一非磁性金属层，半导体层和第二非磁性金属层。第一非磁性金属层和第二非磁性金属层包括厚度范围最小为0.2nm至最大2.0nm的CuPt膜，并且Pt含量范围为最小值5at％至最大值为25原子％。半导体层包括厚度范围为1.0nm至最大2.5nm的ZnO膜，ZnS膜或GaN膜。

5. 发明申请

US20080100968A1 MAGNETO-RESISTIVE EFFECT DEVICE, THIN-FILM MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY, AND HARD DISK SYSTEM 有权
标题翻译：磁阻效应器件，薄膜磁头，头盖组件和硬盘系统
公开(公告)号：US20080100968A1
公开(公告)日：2008-05-01
申请号：US11870097
申请日：2007-10-10
申请人： Koji SHIMAZAWA , Yoshihiro Tsuchiya , Tomohito Mizuno , Kei Hirata
发明人： Koji SHIMAZAWA , Yoshihiro Tsuchiya , Tomohito Mizuno , Kei Hirata
IPC分类号： G11B5/33
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , B82Y40/00 , G01R33/093 , G11B5/3906 , G11B2005/3996 , H01F10/3272 , H01F41/305 , Y10T29/49044 , Y10T29/49048
摘要： The invention provides a giant magneto-resistive effect device (CPP-GMR device) having a CPP (current perpendicular to plane) structure comprising a spacer layer, and a fixed magnetization layer and a free layer stacked one upon another with the spacer layer interposed between them, with a sense current applied in a stacking direction. The free layer functions such that the direction of magnetization changes depending on an external magnetic field. The spacer layer comprises a first nonmagnetic metal layer and a second nonmagnetic metal layer, each made of a nonmagnetic metal material, and a semiconductor layer formed between the first and the second nonmagnetic metal layer. The semiconductor layer is an n-type oxide semiconductor. When the first and second nonmagnetic metal layers are formed in order, the first nonmagnetic metal layer is formed prior to the second nonmagnetic metal layer, and an anti-oxidizing layer is formed between the first and the semiconductor layer. The anti-oxidizing layer is formed of a material incapable of producing a Schottky barrier upon joining to the semiconductor layer. It is thus possible to achieve very favorable advantages of obtaining high MR performance without increasing the head noise, and holding back variations of device's area resistivity (AR), thereby making much more improvements in the reliability of film characteristics.
摘要翻译：本发明提供了一种具有CPP（垂直于平面的电流）结构的巨磁阻效应器件（CPP-GMR器件），该结构包括间隔层，以及固定磁化层和自由层，间隔层介于它们具有沿堆叠方向施加的感测电流。自由层起着使得磁化方向取决于外部磁场的作用。间隔层包括由非磁性金属材料制成的第一非磁性金属层和第二非磁性金属层，以及形成在第一和第二非磁性金属层之间的半导体层。半导体层是n型氧化物半导体。当依次形成第一和第二非磁性金属层时，在第二非磁性金属层之前形成第一非磁性金属层，并且在第一和半导体层之间形成抗氧化层。抗氧化层由与半导体层接合时不能产生肖特基势垒的材料形成。因此，可以获得非常有利的优点，即不增加磁头噪声，并且抑制器件面积电阻率（AR）的变化，从而在膜特性的可靠性方面进一步提高，从而获得高MR性能。

6. 发明申请

US20070297104A1 METHOD FOR MANUFACTURING MAGNETIC FIELD DETECTING ELEMENT UTILIZING DIFFUSION AND MIGRATION OF SILVER 有权
标题翻译：利用铁矿石扩散和迁移的磁场检测元件的制造方法
公开(公告)号：US20070297104A1
公开(公告)日：2007-12-27
申请号：US11766926
申请日：2007-06-22
申请人： Tomohito MIZUNO , Yoshihiro TSUCHIYA , Koji SHIMAZAWA , Kei HIRATA , Keita KAWAMORI
发明人： Tomohito MIZUNO , Yoshihiro TSUCHIYA , Koji SHIMAZAWA , Kei HIRATA , Keita KAWAMORI
IPC分类号： G11B5/012
CPC分类号： G01R33/093 , B82Y25/00 , B82Y40/00 , G11B5/3906 , H01F10/1936 , H01F10/3272 , H01F41/304 , H01L43/08 , H01L43/10 , H01L43/12 , Y10T29/49025 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048
摘要： A method for manufacturing a magnetic field detecting element having a free layer whose magnetization direction is variable depending on an external magnetic field and a pinned layer whose magnetization direction is fixed with respect to the external magnetic field, said free layer and said pinned layer being stacked with an electrically conductive, nonmagnetic spacer layer sandwiched therebetween, wherein sense current is configured to flow in a direction that is perpendicular to film planes of the magnetic field detecting element is provided. The method has the steps of: forming a spacer adjoining layer that is adjacent to said spacer layer, Heusler alloy layer, and a metal layer successively in this order; and forming either at least a part of said pinned layer or said free layer by heating said spacer adjoining layer, said Heusler alloy layer, and said metal layer. The spacer adjoining layer has a layer that is chiefly made of cobalt and iron. The Heusler alloy layer includes metal which is silver, gold, copper, palladium, or platinum, or an alloy thereof. The metal layer is made of silver, gold, copper, palladium, or platinum, or an alloy thereof.
摘要翻译：一种制造磁场检测元件的方法，该磁场检测元件具有其磁化方向根据外部磁场而变化的自由层和相对于外部磁场的磁化方向固定的被钉扎层，所述自由层和所述被钉扎层被堆叠其中夹在其间的导电的非磁性间隔层，其中感测电流被配置为在垂直于磁场检测元件的膜平面的方向上流动。该方法具有如下步骤：依次形成与所述间隔层，Heusler合金层和金属层相邻的间隔物邻接层; 以及通过加热所述隔离物邻接层，所述Heusler合金层和所述金属层，形成所述被钉扎层或所述自由层的至少一部分。间隔物邻接层具有主要由钴和铁制成的层。 Heusler合金层包括银，金，铜，钯或铂的金属或其合金。金属层由银，金，铜，钯或铂或其合金制成。

7. 发明申请

US20120073120A1 METHOD FOR MANUFACTURING HEAD INCLUDING LIGHT SOURCE UNIT FOR THERMAL ASSIST 有权
标题翻译：用于制造包括用于热辅助的光源单元的头的方法
公开(公告)号：US20120073120A1
公开(公告)日：2012-03-29
申请号：US12888916
申请日：2010-09-23
申请人： Koji SHIMAZAWA , Seiichi TAKAYAMA , Nobuyuki MORI , Yoshihiro TSUCHIYA , Shinji HARA
发明人： Koji SHIMAZAWA , Seiichi TAKAYAMA , Nobuyuki MORI , Yoshihiro TSUCHIYA , Shinji HARA
IPC分类号： G11B5/127 , G11B7/22
CPC分类号： G11B5/105 , G11B5/314 , G11B5/6088 , G11B2005/0021 , Y10T29/49032 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T29/53165 , Y10T29/53265 , Y10T428/1143 , Y10T428/1171 , Y10T428/1193
摘要： Provided is a method for manufacturing a thermally-assisted magnetic recording head in which a light source unit including a light source and a slider including an optical system are joined. The method comprises steps of: adhering by suction the light source unit with a back holding jig; bringing the light source unit into contact with a slider back surface of the slider; applying a load to a load application surface of the light source unit by a loading means to bring a joining surface of the light source unit into conformity with the slider back surface; positioning the light source unit apart from the slider, and then aligning the light source with the optical system; bringing again the light source unit into contact with the slider; and applying a load again to the load application surface to bring the joining surface into conformity with the slider back surface. Thus, the conformity between them can be significantly increased, thereby achieving adequately strong junction and adequately high accuracy in position.
摘要翻译：提供一种制造热辅助磁记录头的方法，其中包括光源和包括光学系统的滑块的光源单元接合。该方法包括以下步骤：用后保持夹具吸附光源单元; 使光源单元与滑块的滑块后表面接触; 通过加载装置将负载施加到光源单元的负载施加表面，以使光源单元的接合表面与滑块背面一致; 将光源单元与滑块分开，然后将光源与光学系统对准; 使光源单元再次与滑块接触; 并且将负载再次施加到负载施加表面以使接合表面与滑块后表面一致。因此，它们之间的一致性可以显着增加，从而实现足够强的接合和足够高的位置精度。

8. 发明申请

US20120090162A1 METHOD FOR MANUFACTURING HEAD INCLUDING LIGHT SOURCE UNIT FOR THERMAL ASSIST 有权
标题翻译：用于制造包括用于热辅助的光源单元的头的方法
公开(公告)号：US20120090162A1
公开(公告)日：2012-04-19
申请号：US12904553
申请日：2010-10-14
申请人： Koji SHIMAZAWA , Seiichi TAKAYAMA , Nobuyuki MORI , Yoshihiro TSUCHIYA , Shinji HARA
发明人： Koji SHIMAZAWA , Seiichi TAKAYAMA , Nobuyuki MORI , Yoshihiro TSUCHIYA , Shinji HARA
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , B82Y10/00 , B82Y25/00 , G11B5/1278 , G11B5/3967 , G11B5/6088 , G11B2005/001 , G11B2005/0021 , G11B2005/3996 , Y10T29/49021 , Y10T29/49032 , Y10T29/5313 , Y10T29/53191
摘要： Provided is a method for manufacturing a thermally-assisted magnetic recording head including a light source unit with a light source and a slider with an optical system. The method comprises steps of: adhering by suction the light source unit with a back holding jig; moving the back holding jig, then aligning a light-emission center of the light source with a light-receiving end surface of the optical system in directions within a slider back surface of the slider; bringing the light source unit into contact with the slider back surface, with a suction surface of the back holding jig tilted from the normal to the slider back surface; applying a load to a load application surface of the unit substrate by a loading means to bring a joining surface of the light source unit into conformity with the slider back surface; and bonding the light source unit and the slider. This method can improve the conformity, thereby achieving adequately strong junction and adequately high accuracy in position.
摘要翻译：提供一种制造包括具有光源的光源单元和具有光学系统的滑块的热辅助磁记录头的方法。该方法包括以下步骤：用后保持夹具吸附光源单元; 移动后保持夹具，然后将光源的发光中心与光学系统的光接收端面沿滑块的滑块后表面内的方向对准; 使光源单元与滑块后表面接触，后保持夹具的吸力表面从滑块后表面的法线倾斜; 通过加载装置将负载施加到单元基板的负载施加表面，以使光源单元的接合表面与滑块背面一致; 并且接合光源单元和滑块。该方法可以改善一致性，从而实现足够强的接合和足够高的位置精度。

9. 发明申请

US20130258824A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HAVING TEMPERATURE SENSOR EMBEDDED ON DIELECTRIC WAVEGUIDE 有权
标题翻译：具有埋在电介质波导上的温度传感器的热辅助磁记录头
公开(公告)号：US20130258824A1
公开(公告)日：2013-10-03
申请号：US13432245
申请日：2012-03-28
申请人： Eiji KOMURA , Koji SHIMAZAWA , Tsutomu CHOU , Shinji HARA , Kosuke TANAKA , Ryo HOSOI
发明人： Eiji KOMURA , Koji SHIMAZAWA , Tsutomu CHOU , Shinji HARA , Kosuke TANAKA , Ryo HOSOI
IPC分类号： G11B13/04 , G11B19/20 , G11B21/24
CPC分类号： G11B5/314 , G11B5/607 , G11B2005/0021
摘要： A thermal assisted magnetic recording head includes a dielectric waveguide that is configured to propagate propagation light a metal waveguide that is provided facing the dielectric waveguide and that couples to the propagation light propagating through the dielectric waveguide in a surface plasmon mode, thereby generating and propagating surface plasmon, a near-field light generator that is exposed on an air bearing surface facing a magnetic recording medium either at an end part of the metal waveguide or at a position facing the end part of the metal waveguide, and that generates near-field light from the surface plasmon, a magnetic pole for magnetic recording that is exposed on the air bearing surface, and a temperature sensor that is arranged inside the dielectric waveguide.
摘要翻译：热辅助磁记录头包括电介质波导，其被配置为传播传播光，所述介质波导设置成面对介质波导并且以表面等离子体模式耦合到传播通过介质波导的传播光，从而产生和传播表面等离子体激元，近场光发生器，其在面向金属波导的端部的面向磁记录介质的空气轴承表面上或面对金属波导的端部的位置处暴露，并且产生近场光从表面等离子体激元，暴露在空气轴承表面上的用于磁记录的磁极，以及布置在电介质波导内部的温度传感器。

10. 发明申请

US20130250742A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD, HEAD GIMBALS ASSEMBLY, HEAD ARM ASSEMBLY, MAGNETIC DISK UNIT, AND LIGHT TRANSMISSION UNIT 有权
标题翻译：热辅助磁记录头，头盔组件，头臂组件，磁盘单元和光传输单元
公开(公告)号：US20130250742A1
公开(公告)日：2013-09-26
申请号：US13426142
申请日：2012-03-21
申请人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA , Shinji HARA , Ryo HOSOI , Nobuyuki MORI , Yasutoshi FUJITA , Hideki TANZAWA
发明人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA , Shinji HARA , Ryo HOSOI , Nobuyuki MORI , Yasutoshi FUJITA , Hideki TANZAWA
IPC分类号： G11B13/04 , G02B6/26 , G11B21/24
CPC分类号： G11B5/3116 , G02B6/4208 , G11B5/105 , G11B5/1278 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： The thermally-assisted magnetic recording head includes: a laser light source having an emission surface, the emission surface allowing laser light to be emitted therefrom; a waveguide having a core and a cladding, the core allowing the laser light emitted from the laser light source to propagate therethrough, and the cladding surrounding the core; a magnetic pole; and a plasmon generator. Each of the core and the cladding has an end surface facing the emission surface, and the end surface of the cladding suppresses returning of the laser light to the laser light source.
摘要翻译：热辅助磁记录头包括：具有发射表面的激光光源，所述发射表面允许从其发射激光; 具有芯和包层的波导，所述芯允许从激光源发射的激光传播通过其中;以及围绕芯的包层; 磁极和等离子体发生器。芯和包层中的每一个具有面向发射表面的端表面，并且包层的端表面抑制激光返回到激光光源。

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