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
    • 1. 发明授权
    • Vitreous silica crucible for pulling silicon single crystal
    • 硅玻璃坩埚用于拉硅单晶
    • US08715415B2
    • 2014-05-06
    • US12752374
    • 2010-04-01
    • Makiko KodamaHiroshi KishiMinoru Kanda
    • Makiko KodamaHiroshi KishiMinoru Kanda
    • C30B15/10
    • C30B15/10C30B29/06C30B35/002
    • Provided is a vitreous silica crucible for pulling silicon single crystals, which can melt a silicon raw material in a short time and improve production yield of silicon single crystals by temporal change of an opaque vitreous silica layer. The vitreous silica crucible includes an opaque vitreous silica layer(11) provided on an outer surface thereof and containing plural bubbles, and a transparent vitreous silica layer(12) provided on an inner surface and not containing bubbles substantially. The opaque vitreous silica layer(11) has a bubble diameter distribution in which the content of bubbles having a diameter of less than 40 μm is 10% or more and less than 30%, the content of bubbles having a diameter of 40 μm or more and less than 90 μm is 40% or more and less than 80%, and the content of bubbles having a diameter equal to or more than 90 μm is 10% or more and less than 30%. Relatively small bubbles contained in the opaque vitreous silica layer(11) contribute to the thermal conductivity of a crucible at an initial pulling stage, and relatively large bubbles contained in the opaque vitreous silica layer are expanded through a long-term pulling process to thereby largely contribute to the warmth retaining property of the crucible at a later pulling stage.
    • 本发明提供一种用于拉伸硅单晶的石英玻璃坩埚,其可以在短时间内熔化硅原料,并且通过不透明氧化硅玻璃层的时间变化提高硅单晶的产率。 石英玻璃坩埚包括设置在其外表面并且包含多个气泡的不透明玻璃状石英层(11),以及设置在内表面上且基本上不含有气泡的透明玻璃状石英层(12)。 不透明玻璃状石英层(11)具有气泡直径分布,其中直径小于40μm的气泡的含量为10%以上且小于30%,气泡的直径为40μm以上 小于90μm的是40%以上且小于80%,直径等于或大于90μm的气泡的含量为10%以上且小于30%。 包含在不透明玻璃状二氧化硅层(11)中的相对小的气泡有助于在初始拉伸阶段的坩埚的导热性,并且通过长期拉伸工艺使包含在不透明玻璃状二氧化硅层中的相对大的气泡膨胀,从而大大地扩大 有助于在稍后的拉动阶段坩埚的保温性能。
    • 5. 发明授权
    • Vitreous silica crucible manufacturing apparatus
    • 硅玻璃坩埚制造设备
    • US08240169B2
    • 2012-08-14
    • US12684178
    • 2010-01-08
    • Masanori FukuiHiroshi KishiMasaki Morikawa
    • Masanori FukuiHiroshi KishiMasaki Morikawa
    • C03B19/06H05B7/22
    • C03B19/095H05B7/085
    • A vitreous silica crucible manufacturing apparatus includes a plurality of carbon electrodes configured to heat and melt raw material powder by arc discharge, and a value of a ratio R2/R1 of a diameter R2 of a front end of each of the carbon electrodes to a diameter R1 of a base end is set in a range of 0.6 to 0.8. Each carbon electrode has a diameter reduction portion formed at a front end position and reduced in diameter from a diameter R3 of a base end side to the diameter R2 of the front end. When a length of the diameter reduction portion is L1, the diameter of the front end is R2, the diameter of the base end is R1, an angle between the axis lines of the carbon electrodes is θ1, and X=(R1−R2)/2, a value of L1−(X/tan(θ1/2)) is set in a range of 50 to 150 mm.
    • 玻璃状石英玻璃坩埚的制造装置具有多个碳电极,其通过电弧放电来加热和熔化原料粉末,并且每个碳电极的前端的直径R2的比R2 / R1的值与直径 基端的R1设定在0.6〜0.8的范围内。 每个碳电极具有形成在前端位置并且从基端侧的直径R3到前端的直径R2的直径减小的直径减小部分。 当直径减小部分的长度为L1时,前端的直径为R2,基端的直径为R1,碳电极的轴线之间的角度为1; X =(R1- R2)/ 2,将L1-(X / tan(& 1/2))的值设定在50〜150mm的范围内。
    • 9. 发明授权
    • Driving device
    • 驱动装置
    • US07656073B2
    • 2010-02-02
    • US11271676
    • 2005-11-10
    • Yutaka DoshidaHiroshi KishiMasafumi TsukadaKatsuei Ishida
    • Yutaka DoshidaHiroshi KishiMasafumi TsukadaKatsuei Ishida
    • H01L41/08
    • H02N2/025G02B3/12G02B3/14H01L41/0973
    • A driving device, small in size and light in weight, is to stabilize the position of a surface-deforming element while reducing the effect of gravity thus enabling stable transfer and positioning. The driving device is structured to hold a movable member integrated with a piezoelectric vibrator and a lens by a shaft provided at a tip of a spring extended from an inner surface to center of a passageway. The shaft extends through an opening formed in a protrusion of the movable member. By a tensile force of the spring, the movable member at its outer periphery is pulled radially and held. When applying a voltage with a waveform changing sharply to the piezoelectric vibrator, the movable member flexes maximally upward or downward to have a reduced diameter and an increasing acceleration thereby making a movement. Then, when a frictional force increases, the protrusion is held at a point where the movable member moves. Because of being held by a tensile force, the effect of gravity decreases and hence the movable member is stabilized in position relative to a direction of transfer.
    • 体积小,重量轻的驱动装置是为了稳定表面变形元件的位置,同时减少重力的影响,从而实现稳定的转移和定位。 驱动装置构造成通过设置在从通道的内表面到中心延伸的弹簧的尖端处的轴来保持与压电振动器和透镜一体化的可移动部件。 轴穿过形成在可动构件的突起中的开口。 通过弹簧的张力,可动件在其外周被径向拉伸并保持。 当施加具有波形变化的电压到压电振动器时,可动构件最大程度地向上或向下弯曲以具有减小的直径和增加的加速度,从而进行移动。 然后,当摩擦力增加时,突起被保持在可移动部件移动的点。 由于被张力保持,重力的作用减小,因此可动构件相对于传送方向稳定在适当位置。