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    • 61. 发明授权
    • Self-aligned mask formed utilizing differential oxidation rates of materials
    • 使用材料的不同氧化速率形成的自对准掩模
    • US07288827B2
    • 2007-10-30
    • US10969718
    • 2004-10-20
    • Huajie ChenKathryn T. SchonenbergGregory G. FreemanAndreas D. StrickerJae-Sung Rieh
    • Huajie ChenKathryn T. SchonenbergGregory G. FreemanAndreas D. StrickerJae-Sung Rieh
    • H01L27/082H01L27/102
    • H01L29/66242H01L21/32105Y10S438/911
    • A self-aligned oxide mask is formed utilizing differential oxidation rates of different materials. The self-aligned oxide mask is formed on a CVD grown base NPN base layer which compromises single crystal Si (or Si/SiGe) at active area and polycrystal Si (or Si/SiGe) on the field. The self-aligned mask is fabricated by taking advantage of the fact that poly Si (or Si/SiGe) oxidizes faster than single crystal Si (or Si/SiGe). An oxide film is formed over both the poly Si (or Si/siGe) and the single crystal Si (or Si/siGe) by using an thermal oxidation process to form a thick oxidation layer over the poly Si (or Si/siGe) and a thin oxidation layer over the single crystal Si (or Si/siGe), followed by a controlled oxide etch to remove the thin oxidation layer over the single crystal Si (or Si/siGe) while leaving the self-aligned oxide mask layer over the poly Si (or Si/siGe). A raised extrinsic base is then formed following the self-aligned mask formation. This self-aligned oxide mask blocks B diffusion from the raised extrinsic base to the corner of collector.
    • 使用不同材料的不同氧化速率形成自对准氧化物掩模。 自对准氧化物掩模形成在CVD生长的基底NPN基层上,其牺牲了场上的活性区域上的单晶Si(或Si / SiGe)和多晶Si(或Si / SiGe)。 通过利用多晶硅(或Si / SiGe)比单晶Si(或Si / SiGe)更快地氧化的事实来制造自对准掩模。 通过使用热氧化工艺在多晶硅(或Si / siGe)和单晶Si(或Si / siGe)上形成氧化膜,以在多晶硅(或Si / SiGe)上形成厚的氧化层,以及 在单晶Si(或Si / siGe)上方的薄氧化层,随后进行受控氧化物蚀刻以除去单晶Si(或Si / siGe)上的薄氧化层,同时将自对准氧化物掩模层留在 多晶硅(或Si / siGe)。 然后在自对准掩模形成之后形成隆起的外在基体。 该自对准氧化物掩模阻挡从扩展的外在碱基到收集器角的扩散。
    • 68. 发明授权
    • Permanent magnet synchronous electric machine
    • 永磁同步电机
    • US09502933B2
    • 2016-11-22
    • US14235574
    • 2011-08-31
    • Hui HuangYusheng HuDongsuo ChenHuajie ChenYong XiaoXueying ZengWenming Zhang
    • Hui HuangYusheng HuDongsuo ChenHuajie ChenYong XiaoXueying ZengWenming Zhang
    • H02K1/27
    • H02K1/2766
    • A permanent magnet synchronous electric machine includes a stator and a rotor. Multiple wire grooves are provided peripherally on the stator, coils are provided within the wire grooves, and a stator tooth is provided between adjacent wire grooves. Multiple magnetic groove sets are provided peripherally within the rotor, each of the magnetic groove sets includes at least two magnetic steel grooves, with permanent magnets placed within the magnetic steel grooves, and a magnetic tunnel formed between the magnetic steel grooves. Of two adjacent magnetic tunnels, an end of one magnetic tunnel is opposite a wire groove and an end of the other magnetic tunnel is opposite a stator tooth. The permanent magnet synchronous electric machine has a more steady output torque, and also reduces the noise and vibration provided during operation.
    • 永磁同步电机包括定子和转子。 多个线槽周向设置在定子上,线圈设置在线槽内,定子齿设在相邻线槽之间。 在转子周围设有多个磁槽组,每个磁槽组包括至少两个磁钢槽,其中放置有磁钢槽内的永磁体,以及形成在磁钢槽之间的磁隧道。 在两个相邻的磁隧道中,一个磁通道的一端与电线槽相对,另一个磁通道的一端与定子齿相对。 永磁同步电机具有更稳定的输出转矩,并且还降低了运行中提供的噪声和振动。
    • 70. 发明申请
    • MOTOR ROTOR AND MOTOR HAVING SAME
    • 电机转子和电机
    • US20140191607A1
    • 2014-07-10
    • US14235604
    • 2011-08-29
    • Hui HuangYusheng HuDongsuo ChenHuajie ChenYong XiaoXueying ZengWenming Zhang
    • Hui HuangYusheng HuDongsuo ChenHuajie ChenYong XiaoXueying ZengWenming Zhang
    • H02K1/27
    • H02K1/27H02K1/246H02K1/2766H02K2213/03
    • Disclosed is a motor rotor, comprising an iron core (10) and permanent magnets (20) provided inside the iron core (10). The iron core (10) is provided with sets of mounting grooves (30) on the iron core (10) in the peripheral direction of the iron core, each set of mounting grooves (30) comprising two or more mounting grooves (30) provided intermittently in the radial direction of the iron core (10). There are sets of permanent magnets (20), the individual permanent magnets (20) of each set of permanent magnets (20) correspondingly being embedded into the individual mounting grooves (30) of each set of mounting grooves; there is an island region (12) between the outermost layer of mounting grooves (30) and the periphery of the iron core (10), and an enhancing hole (13) is provided in the island region (12), an enhancing rod (60) being provided in the enhancing hole (13). Disclosed is a motor, comprising a motor stator (50) and the above-mentioned motor rotor, with the motor rotor provided inside the motor stator (50). The motor rotor enhances the structural strength of the whole rotor and improves the performance of the motor.
    • 公开了一种电动机转子,包括设置在铁芯(10)内部的铁芯(10)和永磁体(20)。 铁芯(10)在铁芯的圆周方向上在铁芯(10)上设置有一组安装槽(30),每组安装槽(30)包括两个或更多个安装槽(30) 在铁芯(10)的径向方向间断地进行。 有一组永磁体(20),每组永磁体(20)的各个永久磁体(20)相应地嵌入每组安装槽的各个安装槽(30)中; 在安装槽(30)的最外层与铁芯(10)的外周之间具有岛状区域(12),在岛状区域(12)上设有增强孔(13),增强杆 60)设置在增强孔(13)中。 公开了一种电动机,其包括电动机定子(50)和上述电动机转子,电动机转子设置在电动机定子(50)的内部。 电机转子提高了整个转子的结构强度,提高了电机的性能。