CMOS device with trench structure
    11.
    发明授权
    CMOS device with trench structure 有权
    CMOS器件具有沟槽结构

    公开(公告)号:US06642583B2

    公开(公告)日:2003-11-04

    申请号:US10166575

    申请日:2002-06-11

    IPC分类号: H01L27092

    CPC分类号: H01L27/0921

    摘要: A semiconductor device is provided having a high voltage driver IC reducing malfunction or device destruction. A high voltage IC chip includes a trench structure that surrounds each of two semiconductor regions at different electrical potentials. Specifically, a first semiconductor region forms a ground-potential-based circuit, and a high voltage junction terminating structure around a second semiconductor region forms a floating-potential-based circuit. A trench structure is formed after digging a trench by implanting a high concentration p+ region on a trench wall, or alternatively, by filling the trench with a p+ doped polysilicon or with a dielectric.

    摘要翻译: 提供了具有降低故障或器件破坏的高电压驱动器IC的半导体器件。 高压IC芯片包括围绕不同电位的两个半导体区域中的每一个的沟槽结构。 具体地,第一半导体区域形成基于地电位的电路,并且围绕第二半导体区域的高电压结端接结构形成基于浮置电位的电路。 通过在沟槽壁上注入高浓度p +区域,或者通过用p +掺杂多晶硅或电介质填充沟槽,在挖掘沟槽之后形成沟槽结构。

    Polypropylene composition, process for preparing the same, and polymerization catalyst therefor
    12.
    发明授权
    Polypropylene composition, process for preparing the same, and polymerization catalyst therefor 失效
    聚丙烯组合物,其制备方法及其聚合催化剂

    公开(公告)号:US06531551B2

    公开(公告)日:2003-03-11

    申请号:US09214798

    申请日:1999-01-11

    IPC分类号: C08F1006

    摘要: A polypropylene composition comprising 0.001 to 10 parts by weight of a polyethylene having an intrinsic viscosity [&eegr;E] of 0.01 to less than 15 dl/g s measured in tetralin at 135° C. and 100 parts by weight of a polyolefin comprising at least polypropylene, wherein the polyethylene is finely dispersed as particles with a number average particle diameter of, e.g., 1 to 5000 nm in the polyolefin comprising at least polypropylene. By virtue of the above constitution, the polypropylene composition has excellent transparency and rigidity, is free from the creation of a sweeper roll flow mark in the preparation of a film and substantially free from a neck-in phenomenon of a film, and has high productivity.

    摘要翻译: 一种聚丙烯组合物,其包含0.001至10重量份在135℃下在四氢化萘中测量的特性粘度η为0.01至小于15dl / g的聚乙烯和100重量份至少包含聚丙烯的聚烯烃, 其中所述聚乙烯在至少包含聚丙烯的聚烯烃中作为具有数均粒径例如1至5000nm的颗粒细分散。 通过上述结构,聚丙烯组合物具有优异的透明性和刚性,在制备薄膜时基本上没有膜的颈部现象而产生清扫辊流动痕迹,并且具有高的生产率 。

    Polydisperse propylene polymer and process for producing the same
    13.
    发明授权
    Polydisperse propylene polymer and process for producing the same 失效
    多分散丙烯聚合物及其制备方法

    公开(公告)号:US06441111B1

    公开(公告)日:2002-08-27

    申请号:US09485617

    申请日:2000-02-14

    IPC分类号: C08F1008

    摘要: A polydisperse propylene polymer characterized by being produced by polymerizing a propylene monomer or a mixed monomer of propylene and other olefin(s) by a multistage polymerization wherein the polymerization conditions are stepwise changed in the presence of a supported metallocene catalyst having a transition metal compound and an aluminoxane or a reaction product thereof supported on a finely particulate support, and an organoaluminum compound as a scavenger, and by having a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) of 4.0 or higher, a melting point (Tm) of 165° C. or lower and a difference between the melting point (Tm) and a heat distortion temperature (HDT) of 30° C. or less.

    摘要翻译: 一种多分散丙烯聚合物,其特征在于通过多级聚合使丙烯单体或丙烯与其它烯烃的混合单体聚合而制备,其中聚合条件在具有过渡金属化合物的负载金属茂催化剂存在下逐步改变, 负载在细颗粒载体上的铝氧烷或其反应产物和作为清除剂的有机铝化合物,并且通过使重均分子量与数均分子量(Mw / Mn)之比为4.0以上 ,熔点(Tm)为165℃以下,熔点(Tm)与热变形温度(HDT)的差为30℃以下。

    Magnetooptical recording method and apparatus using multi-layered media
    17.
    发明授权
    Magnetooptical recording method and apparatus using multi-layered media 失效
    磁光记录方法和使用多层介质的设备

    公开(公告)号:US5539709A

    公开(公告)日:1996-07-23

    申请号:US92686

    申请日:1993-07-16

    IPC分类号: G11B11/105 G11B11/00

    摘要: A magnetooptical recording method for recording data using a bit having upward-magnetization and a bit having downward-magnetization on a recording layer of a magnetooptical recording medium comprises the steps of using, as the medium, a multilayered magnetic recording medium consisting of a first layer having a perpendicular magnetic anisotropy acting as a recording layer, and a second layer having a perpendicular magnetic anisotropy acting as a reference layer; moving the medium; applying an initial field so that, before recording, the direction of magnetization of the recording layer is left unchanged, and that of the reference layer is aligned either upward or downward; radiating a laser beam onto the medium; pulse modulating an intensity of the laser beam in accordance with binary data to be recorded; when the laser beam is radiated, applying a bias field to the irradiated portion; and when the intensity of the pulse-modulated laser beam is at high level, forming one of the bit having upward-magnetization and that having downward-magnetization, and when the intensity of the pulse-modulated laser beam is at low level, forming the other bit.

    摘要翻译: 使用具有向上磁化的位和在磁光记录介质的记录层上具有向下磁化的位的数据记录数据的磁光记录方法包括以下步骤:使用由第一层构成的多层磁记录介质 具有作为记录层的垂直磁各向异性,和具有作为参考层的垂直磁各向异性的第二层; 移动媒体; 施加初始场,使得在记录之前,记录层的磁化方向保持不变,并且参考层的磁化方向向上或向下排列; 将激光束照射到介质上; 根据要记录的二进制数据对激光束的强度进行脉冲调制; 当激光束被照射时,向照射部分施加偏置场; 并且当脉冲调制激光束的强度处于高电平时,形成具有向上磁化并具有向下磁化的位之一,并且当脉冲调制激光束的强度处于低电平时,形成 其他位

    Overwrite capable magnetooptial recording apparatus
    18.
    发明授权
    Overwrite capable magnetooptial recording apparatus 失效
    覆盖能力的磁光记录装置

    公开(公告)号:US5475657A

    公开(公告)日:1995-12-12

    申请号:US92056

    申请日:1993-07-16

    摘要: An overwrite capable magnetooptical recording apparatus comprises a moving magnetooptical recording medium to which is applied an initial magnetic field and a laser beam which irradiates the moving medium. The beam intensity is modulated, in accordance with binary data to be recorded, between a high beam intensity level that provides the medium with a first temperature suitable for forming one of a first bit having upward-magnetization and a second bit having downward-magnetization, and a low beam intensity level that provides the medium with a second temperature suitable for forming the other bit. A bias magnetic field is applied to a portion of the medium irradiated by the beam.

    摘要翻译: 具有覆盖能力的磁光记录装置包括施加初始磁场的移动磁光记录介质和照射移动介质的激光束。 根据要记录的二进制数据,在提供介质的适合于形成具有向上磁化的第一位和具有向下磁化的第二位之一的第一温度的高光束强度水平之间调制光束强度, 以及向光束强度水平提供适合于形成其它钻头的第二温度的介质。 将偏置磁场施加到由光束照射的介质的一部分上。

    Recording condition determination method and apparatus upon execution of
over-write operation on magnetooptical disk by heat shut off method and
pulse train method, and magnetooptical recording method and apparatus
    19.
    发明授权
    Recording condition determination method and apparatus upon execution of over-write operation on magnetooptical disk by heat shut off method and pulse train method, and magnetooptical recording method and apparatus 失效
    通过热切断方法和脉冲串方法对磁光盘执行过写操作的记录条件确定方法和装置以及磁光记录方法和装置

    公开(公告)号:US5420837A

    公开(公告)日:1995-05-30

    申请号:US141620

    申请日:1993-10-27

    摘要: In a magnetooptical recording method and apparatus the intensity of a laser beam to be radiated onto an over-write capable magnetooptical disk is raised from P.sub.L to an intensity P.sub.H higher than P.sub.L, the intensity is reduced to an intensity P.sub.LT lower than P.sub.H after P.sub.H is maintained for a time T.sub.W1, the laser beam is intensity-modulated at a period T.sub.p between P.sub.LT and an intensity P.sub.W2 higher than P.sub.LT so as to form a mark on the magnetooptical disk by a high-temperature cycle, thereafter, the intensity is reduced to an intensity P.sub.LB lower than P.sub.L, and the intensity is raised to P.sub.L after an elapse of a time T.sub.off. The intensity P.sub.L is selected from an intensity range defined between an upper limit and a lower limit. The upper limit is a laser beam intensity for maintaining a pre-heat state in which a temperature on the magnetooptical disk becomes a predetermined temperature .THETA..sub.pre, and is also an intensity which does not cause the high-temperature cycle. The lower limit is an intensity at which a mark formed by the high-temperature cycle can be erased. At least one of P.sub.L, T.sub.off, and P.sub.LB is controlled to achieve the pre-heat state within a time until the intensity is raised to P.sub.H again. At least one of P.sub.W2, P.sub.LT, and a time T.sub.W2 for maintaining P.sub.W2 is controlled, so that a temperature, after an elapse of T.sub.W1, at a peak temperature position or a spot center position of the laser beam radiated onto the magnetooptical disk surface becomes equal to a temperature after an elapse of T.sub.W2.

    摘要翻译: 在磁光记录方法和装置中,要辐射到可写入的磁光盘上的激光束的强度从PL升高到高于PL的强度PH,在PH为PH之后,强度降低到低于PH的强度PLT 维持一段时间TW1,激光束在PLT和PLT之间的时间间隔Tp被强度调制,以便在高温循环下在磁光盘上形成一个标记,其后强度降低到 强度PLB低于PL,并且在经过一段时间Toff之后将强度提高到PL。 强度PL从在上限和下限之间限定的强度范围中选择。 上限是用于维持磁光盘上的温度成为预定温度THETA pre的预热状态的激光束强度,也是不引起高温循环的强度。 下限是可以擦除由高温循环形成的标记的强度。 控制PL,Toff和PLB中的至少一个以在一段时间内实现预热状态,直到强度再次升高到PH。 控制PW2,PLT以及用于维持PW2的时间TW2中的至少一个,使得经过TW1之后在照射到磁光盘表面上的激光束的峰值温度位置或点中心位置处的温度变为 等于经过TW2后的温度。