会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Single crystal pulling apparatus
    • 单晶拉丝机
    • US5858087A
    • 1999-01-12
    • US774184
    • 1996-12-26
    • Hiroaki TaguchiTakashi AtamiHisashi FuruyaMichio Kida
    • Hiroaki TaguchiTakashi AtamiHisashi FuruyaMichio Kida
    • C30B15/02C30B15/12C30B35/00
    • C30B15/12C30B15/02Y10T117/1052
    • The principal construction of a single crystal pulling apparatus involves a chamber (gas tight chamber) inside of which is a double crucible 3 for storing a semiconductor melt 21, comprising an outer crucible 11 and an inner crucible 12 communicated with each other, and a source material supply tube 5 suspended from an upper portion of the chamber, and positioned so that granular source material 8 can be introduced from a lower end opening 5a thereof into the semiconductor melt 21 between the outer crucible 11 and the inner crucible 12. An incline portion 13 is provided at a lower end of the source material supply tube 5 on the inner crucible 12 side, for introducing source material 8 discharging from the lower end opening 5a to the semiconductor melt 21 in the vicinity of the side wall of the outer crucible 11. The entry point of the source material 8 is as far as possible from the inner crucible 12, and close to the outer wall of the outer crucible 11, and hence the added source material 8 is melted rapidly by heat from a heater surrounding the outer crucible 11, and any gas bubbles generated as a result of the introduction of the source material 8, are unlikely infuse into the inner crucible 12.
    • 单晶拉制装置的主要结构涉及一个室(气密室),其内部是用于存储半导体熔体21的双坩埚3,其包括彼此连通的外坩埚11和内坩埚12,源 材料供给管5从室的上部悬挂,并且定位成使得颗粒状原料8可以从其下端开口5a引入到外坩埚11和内坩埚12之间的半导体熔体21中。倾斜部分 在内坩埚12侧的原料供给管5的下端部设置有用于将从下端开口5a排出的原料8引导到外坩埚11的侧壁附近的半导体熔融体21 源材料8的入口点尽可能远离内坩埚12,并且靠近外坩埚11的外壁,因此添加的源配合 rial 8通过来自围绕外坩埚11的加热器的热量迅速熔化,并且由于引入源材料8而产生的任何气泡不太可能注入内坩埚12中。
    • 8. 发明授权
    • Apparatus for preventing heater electrode meltdown in single crystal
pulling apparatus
    • 用于防止单晶拉制装置中加热器电极熔化的装置
    • US5843228A
    • 1998-12-01
    • US825637
    • 1997-04-01
    • Masao SaitohDaisuke WakabayashiTakashi AtamiHisashi Furuya
    • Masao SaitohDaisuke WakabayashiTakashi AtamiHisashi Furuya
    • H05B3/00C30B15/14C30B15/18C30B15/20H01L21/208C30B35/00
    • C30B15/18Y10T117/1004Y10T117/1008Y10T117/1088
    • The invention is directed to preventing meltdown of conductive metal electrodes 5, 5 used to supply current to a heater 104 of a crucible 103. A single crystal pulling apparatus comprises: the heater 104 which encircles the crucible 103, and the pair of electrodes 5, 5, respectively threaded to a pair of graphite intermediate electrodes 6 of the heater 104, and a voltage source 9 for supplying power to the pair of electrodes 5, 5. A switch 11 switches the power on and off. A watthour meter 10a, continuously measures the current flowing through the heater 104. Investigation by the present inventors showed that in the case of a crack 8 in a lower portion of the intermediate electrode 6, minute fluctuations occurred in the measured value of the current, arising from an electric discharge phenomena in the crack 8 prior to meltdown of the electrodes 5, 5. Therefore, if fluctuations in the electric current measured by the wattmeter 10a are outside of a tolerance range, the controller 12 switches off the switch 11, thus interrupting power to the electrodes 5, 5, and preventing meltdown of the electrodes 5, 5.
    • 本发明旨在防止用于向坩埚103的加热器104提供电流的导电金属电极5,5的熔化。单晶拉制装置包括:围绕坩埚103的加热器104和一对电极5, 分别连接到加热器104的一对石墨中间电极6和用于向一对电极5,5的供电的电压源9.开关11切断电源。 电度表10a连续地测量流过加热器104的电流。本发明人的研究结果表明,在中间电极6的下部的裂纹8的情况下,电流的测量值发生微小的波动, 由电极5,5的熔断之前的裂纹8中的放电现象引起。因此,如果由瓦特计10a测量的电流的波动超出公差范围,则控制器12将开关11断开 中断对电极5,5的电力,并防止电极5,5的熔化。
    • 10. 发明授权
    • Single crystal pulling apparatus
    • 单晶拉丝机
    • US5779792A
    • 1998-07-14
    • US781843
    • 1997-01-10
    • Takashi AtamiHisashi FuruyaMichio Kida
    • Takashi AtamiHisashi FuruyaMichio Kida
    • C30B15/12C30B15/02C30B15/30C30B29/06H01L21/208C30B35/00
    • C30B15/02C30B15/305Y10T117/1056
    • The present invention provides an improved single crystal pulling apparatus for pulling a single crystal semiconductor such as silicon or gallium arsenide. The apparatus of the present invention comprises a gas tight container, a crucible which is disposed inside the container, a heater, and a pair of coils to apply a cusp magnetic field in the semiconductor melt. The crucible is separated into two regions by a cylindrical partition body, and an outside region is used to supply source material and to melt the source material and an inside region is used for pulling up the single crystal. The inside and outside regions are communicated with the communication passage provided at the bottom of the partition body. Electrical currents in opposing directions are applied to a pair of coils for generating in the melt a cusp magnetic field which includes a vertical portion and a horizontal portion relative to the crucible. By positioning the vertical portion of the cusp magnetic field at the position of the communication passage and the horizontal portion below the semiconductor melt, the flow rate of the melt passing through the communication passage is reduced and the convection within the melt is suppressed. Consequently, high quality semiconductor single crystals can be obtained.
    • 本发明提供一种用于拉取诸如硅或砷化镓的单晶半导体的改进的单晶拉制装置。 本发明的装置包括气密容器,设置在容器内的坩埚,加热器和一对在半导体熔体中施加尖点磁场的线圈。 坩埚通过圆柱形分隔体分成两个区域,并且使用外部区域来供应源材料并熔化源材料,并且使用内部区域来拉出单晶。 内部和外部区域与设置在分隔体底部的连通通道连通。 相反方向的电流被施加到一对线圈,用于在熔体中产生包括相对于坩埚的垂直部分和水平部分的尖点磁场。 通过将尖点磁场的垂直部分定位在连通通道的位置和半导体熔体下方的水平部分,通过连通通道的熔体的流速减小,并且熔体内的对流被抑制。 因此,可以获得高质量的半导体单晶。