公开(公告)号：US20090059748A1

公开(公告)日：2009-03-05

申请号：US11718244

申请日：2005-10-28

申请人： Maarten Van Der Vleuten ,  Johannes Hendrikus Maria Spruit ,  Derk Jan Adelerhof ,  Petrus Adrianus Maria Van Dorst ,  Rene Johan Gerrit Elfrink

发明人： Maarten Van Der Vleuten ,  Johannes Hendrikus Maria Spruit ,  Derk Jan Adelerhof ,  Petrus Adrianus Maria Van Dorst ,  Rene Johan Gerrit Elfrink

IPC分类号： G11B7/00

CPC分类号： G11B7/0062

摘要： A method for setting an optimum value of a write power level for use in an optical recording apparatus for writing information on a recording layer (3) of an optical recording medium (1) by means of a radiation beam (5) is described. The recording layer is able to change between an amorphous and a crystalline state. The apparatus comprises a radiation source (4) for emitting the radiation beam (5) having a controllable value of a write power level (Pw) for recording information on the recording medium, a control unit (12) for recording a series of test patterns in a test area on the recording layer, each pattern being recorded with a different value of the write power level, a read unit (90) for reading the patterns and forming corresponding read signal portions, and first means (10, 101, 102) for deriving a value of a read parameter from at least one read signal portion and setting an optimum value (Popt) of the write power level based on the values of this read parameter. According to the invention the apparatus further comprises second means to perform at least one initial step (40) of at least partly amorphizing and subsequently recrystallizing the recording layer. In this way a consistent result for the determined optimum value (Popt) of the write power level (Pw) is obtained.

摘要翻译： 描述了一种用于设置用于通过辐射束（5）在光学记录介质（1）的记录层（3）上写入信息的光学记录装置中的写入功率电平的最佳值的方法。 记录层能够在无定形和结晶状态之间变化。 该装置包括用于发射具有用于在记录介质上记录信息的写入功率电平（Pw）的可控值的辐射束（5）的辐射源（4），用于记录一系列测试图案的控制单元 在记录层上的测试区域中，每个图案被记录有不同的写功率电平值，用于读取图案并形成对应的读信号部分的读单元（90）和第一装置（10,101,102） 用于从至少一个读取信号部分导出读取参数的值，并且基于该读取参数的值来设置写入功率电平的最佳值（Popt）。 根据本发明，该装置还包括执行至少部分非晶化并随后使记录层再结晶的至少一个初始步骤（40）的第二装置。 以这种方式，获得写入功率电平（Pw）的所确定的最佳值（Popt）的一致结果。

公开(公告)号：US07001777B1

公开(公告)日：2006-02-21

申请号：US09787457

申请日：2000-07-17

申请人： Derk Jan Adelerhof ,  Reinder Coehoorn ,  Joannes Baptist Adrianus Dionisius Van Zon

发明人： Derk Jan Adelerhof ,  Reinder Coehoorn ,  Joannes Baptist Adrianus Dionisius Van Zon

IPC分类号： H01L21/00

CPC分类号： G01R33/093 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/098 ,  H01F10/3254 ,  H01F41/308 ,  H01L43/12

摘要： A method of manufacturing a magnetic tunnel junction device, in which a stack (1) comprising two magnetic layers (3, 7) and a barrier layer (5) extending in between is formed. One of the magnetic layers is structured by means of etching, in which, during etching, a part of this layer is made thinner by removing material until a rest layer (7r) remains. This rest layer is passivated by chemical conversion. In the relevant method, it is prevented that the magnetic layer which is not to be structured is detrimentally influenced during structuring of the other magnetic layer.

摘要翻译： 一种制造磁性隧道结器件的方法，其中形成了包括两个磁性层（3,7）和在其间延伸的阻挡层（5）的叠层（1）。 其中一个磁性层通过蚀刻来构造，其中在蚀刻期间，通过去除材料使该层的一部分变薄，直至残留层（7r）残留。 这个休息层被化学转化而钝化。 在相关方法中，防止在另一磁性层的结构化期间不被构造的磁性层受到不利影响。

公开(公告)号：US20080212459A1

公开(公告)日：2008-09-04

申请号：US11917162

申请日：2006-06-09

申请人： Rudolf Johan Maria Vullers ,  Bart Van Rompaey ,  Andrei Mijiritskii ,  Derk Jan Adelerhof ,  Antonius Emilius Theodorus Kuiper ,  Johannes Gerardus Fredericus Kablau

发明人： Rudolf Johan Maria Vullers ,  Bart Van Rompaey ,  Andrei Mijiritskii ,  Derk Jan Adelerhof ,  Antonius Emilius Theodorus Kuiper ,  Johannes Gerardus Fredericus Kablau

IPC分类号： G11B3/70

CPC分类号： G11B23/40 ,  B41J3/4071 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/24038

摘要： The present invention relates to a method of writing information on an optical recording medium (10 to 38), the optical recording medium having at least one data layer (40) for storing data readable by use of an optical readout device and at least one label layer (42) for storing visible information, the method comprising the steps of: focusing a first wavelength laser beam (44 to 58) onto the at least one data layer for writing data on the data layer, and focusing a second wavelength laser beam (60 to 78) onto the at least one label layer for writing visible information on the label layer, thereby a laser spot size being usable that is also employable when using the second wavelength laser beam for writing data on a data layer for storing data readable by use of an optical readout device. The present invention further relates to an optical recording medium and to a method of manufacturing an optical recording medium.

摘要翻译： 本发明涉及一种在光学记录介质（10至38）上写入信息的方法，该光学记录介质具有至少一个数据层（40），用于存储通过使用光学读出装置可读取的数据和至少一个标签 用于存储可见信息的层（42），所述方法包括以下步骤：将第一波长激光束（44至58）聚焦到所述至少一个数据层上以在数据层上写入数据，并且将第二波长激光束 60至78）到所述至少一个标签层上，用于在标签层上写入可见信息，从而可以使用激光光斑尺寸，当使用第二波长激光束将数据写入数据层以便存储可读取的数据时 使用光学读出装置。 本发明还涉及光记录介质和制造光记录介质的方法。

公开(公告)号：US06633462B2

公开(公告)日：2003-10-14

申请号：US09864130

申请日：2001-05-24

申请人： Derk Jan Adelerhof

发明人： Derk Jan Adelerhof

IPC分类号： G11B5127

CPC分类号： G01D5/145 ,  G01R33/09 ,  Y10T29/49044

摘要： A magnetoresistive angular sensor (1) is provided which determines a magnetic field direction. A high angular accuracy over a wide range of magnetic field strengths is obtained. The magnetoresistive angular sensor comprises a main sensing element (2) which is electrically connected to a first correction sensing element (6) with a first reference magnetization axis (9) and a second correction sensing element (8) with a second reference magnetization axis (10), the first (9) and the second (10) reference magnetization axes making correction angles &THgr; between 5° and 85° of opposite sign with the main reference axis (3).

摘要翻译： 提供决定磁场方向的磁阻角度传感器（ 1 ）。 获得了宽范围的磁场强度的高角度精度。 磁阻角度传感器包括电连接到第一校正感测元件（ 6 ）的主感测元件（ 2 ）和具有第二参考磁化强度的第二参考磁化轴（ 9 ）和第二校正感测元件（ 8 ） （ 10 ），第一个（ 9 ）和第二个（ 10 ）参考磁化轴，使主要参考轴（ 3 ）的相反符号在5°和85°之间的校正角度θta。

公开(公告)号：US06501678B1

公开(公告)日：2002-12-31

申请号：US09763206

申请日：2001-02-16

申请人： Kars-Michiel Hubert Lenssen ,  Derk Jan Adelerhof ,  Gerardus Henricus Johannes Somers ,  Joannes Baptist Adrianus Dionisius Van Zon ,  Antonius Emilius Theodorus Kuiper

发明人： Kars-Michiel Hubert Lenssen ,  Derk Jan Adelerhof ,  Gerardus Henricus Johannes Somers ,  Joannes Baptist Adrianus Dionisius Van Zon ,  Antonius Emilius Theodorus Kuiper

IPC分类号： G11C1100

CPC分类号： B82Y25/00 ,  G01R33/093 ,  G01R33/096 ,  G11C11/16 ,  G11C11/161 ,  G11C11/1673 ,  G11C17/02 ,  H01L27/22 ,  H01L27/222

摘要： A novel magnetic data storage system and a sensing system of magnetic characteristics are disclosed; the systems have a magnetization direction that is irreversible in an external magnetic field. A method of manufacturing, a method of resetting or changing or repairing and a method of operating such systems are also disclosed. The systems can include a set of magnetic devices in a balancing configuration; essentially each of said devices comprises a structure of layers including at least a first ferromagnetic layer and a second ferromagnetic layer with at least a separation layer of a non-magnetic material there between, said structure having at least a magneto resistance effect. The magnetization direction of the first ferromagnetic layer of at least one of said devices is irreversible in an external magnetic field higher than about 35 kA/m.

摘要翻译： 公开了一种新型磁数据存储系统和磁特性检测系统; 系统具有在外部磁场中不可逆的磁化方向。 还公开了一种制造方法，复位或更换或修理方法以及操作这种系统的方法。 该系统可以包括一组平衡配置的磁性装置; 基本上每个所述装置包括至少包括第一铁磁层和第二铁磁层的层的结构，其中至少具有非磁性材料的分离层，所述结构至少具有磁阻效应。 至少一个所述装置的第一铁磁层的磁化方向在高于约35kA / m的外部磁场中是不可逆的。