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    • 1. 发明授权
    • Growth of silicon single crystal having uniform impurity distribution
along lengthwise or radial direction
    • 长度方向或径向均匀杂质分布的硅单晶的生长
    • US5700320A
    • 1997-12-23
    • US620391
    • 1996-03-22
    • Koji IzunomeSouroku KawanishiShinji TogawaAtsushi IkariHitoshi SasakiShigeyuki Kimura
    • Koji IzunomeSouroku KawanishiShinji TogawaAtsushi IkariHitoshi SasakiShigeyuki Kimura
    • C30B15/00C30B15/04
    • C30B29/06C30B15/00
    • When a B or P-doped Si single crystal is pulled up from a B or P-doped melt by the Czochralski method, an element such as Ga, Sb or In having the effect to reduce the heat expansion coefficient of said melt at a temperature near the melting point is added to said melt. The additive element stabilizes the temperature condition of crystal growth so as to control the generation of eddy flows just below the interface of crystal growth. When a Ga or Sb-doped Si single crystal is pulled up from a Ga or Sb-doped melt, an element such as B or P having the effect to increase the heat expansion coefficient of said melt at a temperature near the melting point is added. The agitation of the melt just below the interface of crystal growth is accelerated by the addition of B or P, so as to assure the growth of a Si single crystal from the melt having impurity distribution made uniform along the radial direction. Accordingly, a Si single crystal is formed having a uniform impurity distribution along its lengthwise or radial direction.
    • 当通过Czochralski方法从B或P掺杂的熔体中提取B或P掺杂的Si单晶时,可以使用诸如Ga,Sb或In的元素,其具有在温度下降低所述熔体的热膨胀系数 在熔点附近加入熔融物。 添加元素稳定了晶体生长的温度条件,从而控制刚好低于晶体生长界面的涡流的产生。 当从Ga或Sb掺杂的熔体中提取Ga或Sb掺杂的Si单晶时,添加诸如B或P的元素,其在熔点附近的温度下增加所述熔体的热膨胀系数, 。 通过添加B或P来促进刚好低于晶体生长界面的熔体的搅拌,以确保Si单晶从具有沿径向方向均匀的杂质分布的熔体生长。 因此,形成沿着其长度方向或径向方向具有均匀杂质分布的Si单晶。
    • 10. 发明授权
    • Voice speed control apparatus
    • 语音速度控制装置
    • US07672840B2
    • 2010-03-02
    • US11653952
    • 2007-01-17
    • Hitoshi SasakiHiroshi KatayamaRika Nishiike
    • Hitoshi SasakiHiroshi KatayamaRika Nishiike
    • G10L21/04G10L11/02
    • G11B27/005G10L21/04G10L25/93
    • A voice speed control apparatus comprising: an utterance/non-utterance judging unit judging whether a processing target segment in inputted a voice signal is an utterance segment or a non-utterance segment; a non-utterance continuation length acquiring unit acquiring a non-utterance continuation length representing a length of the voice signal judged continuously to be the non-utterance; a determining unit determining a reproducing speed of the processing target segment in the voice signal in accordance with the non-utterance continuation length so that the reproducing speed gets higher as the non-utterance continuation length gets larger and so that an increase in reproducing speed is restrained to a greater degree as the non-utterance continuation length becomes smaller; and a changing unit changing the reproducing speed of the voice signal, corresponding to the reproducing speed.
    • 一种话音速度控制装置,包括:发声/非发声判断单元,判断输入的语音信号中的处理目标片段是话音段还是非话音段; 非话语连续长度获取单元获取表示连续判断为非话语的语音信号的长度的非话语连续长度; 确定单元,根据非话语连续长度来确定语音信号中的处理目标段的再现速度,使得再现速度随着非话语连续长度变大而变高,并且再现速度的增加是 随着非话语连续长度变小,限制在更大程度上; 以及改变单元,改变对应于再现速度的语音信号的再现速度。