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    • 5. 发明专利
    • Method for manufacturing silicon carbide single crystal
    • 制造单晶碳化硅的方法
    • JP2014043394A
    • 2014-03-13
    • JP2013247714
    • 2013-11-29
    • Denso Corp株式会社デンソーToyota Motor Corpトヨタ自動車株式会社
    • KONDO HIROYUKITAKAHANE HIDETAKAADACHI AYUMI
    • C30B29/36C30B23/06
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing silicon carbide single crystal, in which a stable growth of a SiC single crystal is made possible when this SiC signal crystal is grown by using a manufacturing apparatus having a thermal insulator arranged around a crucible.SOLUTION: A Si content 21 is arranged in a container body 2a as a crucible 2, and a lid 2b is prepared. An insulator 20 made of graphite, in which Si is not absorbed to enclose the circumference of the crucible 2, is arranged at the outer circumference of the crucible 2. A Si-absorbing step is performed to make the insulator 20 absorb the sublimation gas having leaked from the crucible 2 by heating the crucible 2 and accordingly the Si content 21. After this, the crucible 2 is prepared by arranging a powdery raw material 5 in the container body 2a and by arranging a seed crystal 4 on a pedestal 3 disposed in the lid 2b. An insulator 11 having absorbed the Si obtained at the Si absorbing step is arranged around the outer circumference of that crucible 2, and the crucible 2 is heated to perform a growing step of growing a SiC single crystal 6 on the seed crystal 4.
    • 要解决的问题:提供一种制造碳化硅单晶的方法,其中当通过使用具有布置在坩埚周围的绝热体的制造装置生长该SiC信号晶体时,可以使SiC单晶的稳定生长成为可能。 解决方案:将Si含量21设置在作为坩埚2的容器主体2a中,并制备盖2b。 在坩埚2的外周配置由石墨制成的绝缘体20,其中Si不被吸收以包围坩埚2的周边。进行Si吸收步骤以使绝缘体20吸收具有 通过加热坩埚2和Si含量21从坩埚2泄漏。之后,通过将粉末状原料5布置在容器主体2a中并通过将晶种4布置在设置在底座3上的基座3上来制备坩埚2 盖2b。 吸收了在Si吸收步骤中获得的Si的绝缘体11围绕该坩埚2的外周布置,并且对坩埚2进行加热,以进行在籽晶4上生长SiC单晶6的生长步骤。
    • 6. 发明专利
    • Method for producing silicon carbide single crystal
    • 生产碳化硅单晶的方法
    • JP2014058446A
    • 2014-04-03
    • JP2013247715
    • 2013-11-29
    • Denso Corp株式会社デンソーToyota Motor Corpトヨタ自動車株式会社
    • KONDO HIROYUKITAKAHANE HIDETAKAADACHI AYUMI
    • C30B29/36
    • PROBLEM TO BE SOLVED: To provide a method for producing a SiC single crystal that enables a stable growth of the SiC single crystal on growing the SiC single crystal using a producing apparatus with a heat insulator disposed around a crucible.SOLUTION: A Si absorbing step is performed by providing a vessel body 2a in which an Si containing material 21 is charged and a lid 2b as a crucible 2, disposing a heat insulator 20 of graphite without Si absorbed at the circumference of the crucible 2 so that it surrounds the circumference of the crucible 2, heating the Si containing material 21 by heating the crucible 2 to make the heat insulator 20 absorb a sublimation gas leaked from the crucible 2. Then, a growing step for growing the SiC single crystal on a seed crystal is performed by providing a crucible in which a powdery raw material is charged in the vessel body 2a and the seed crystal is disposed on a pedestal 3 formed on the lid 2b as the crucible 2, and heating the crucible 2 with the Si absorbed heat insulator 20 obtained by the Si absorbing step disposed at the circumference of the crucible 2 so that it surrounds the circumference of the crucible 2.
    • 要解决的问题:提供一种制造SiC单晶的方法,其使用具有设置在坩埚周围的隔热材料的制造装置生长SiC单晶时能够稳定地生长SiC单晶。解决方案:Si吸收步骤 通过提供其中装载有Si的材料21的容器主体2a和作为坩埚2的盖2b来进行,在坩埚2的周围设置没有Si的石墨的绝热体20,以使其围绕圆周 坩埚2通过加热坩埚2来加热含Si材料21,以使绝热体20吸收从坩埚2泄漏的升华气体。然后,通过提供在晶种上生长SiC单晶的生长步骤 其中将粉末状原料装入容器主体2a并将晶种设置在作为坩埚2的形成在盖2b上的基座3上的坩埚,并且用坩埚2加热坩埚2 e Si吸收通过设置在坩埚2的圆周处的Si吸收步骤获得的绝热体20,使得其围绕坩埚2的周围。
    • 7. 发明专利
    • Method for producing silicon carbide single crystal
    • 生产碳化硅单晶的方法
    • JP2011213563A
    • 2011-10-27
    • JP2010086032
    • 2010-04-02
    • Denso CorpToyota Motor Corpトヨタ自動車株式会社株式会社デンソー
    • KONDO HIROYUKITAKAHANE HIDETAKAADACHI AYUMI
    • C30B29/36
    • PROBLEM TO BE SOLVED: To provide a method for producing SiC single crystals, which method enables stable growth of the SiC single crystals when growing the SiC single crystals by using an apparatus for producing wherein a heat insulating material is arranged around a crucible.SOLUTION: In the method for producing the SiC single crystals, an Si inclusion is allocated as a crucible 2 in a container body 2a and a cover body 2b is prepared; a heat insulation material made of black lead and not having absorbed Si is allocated at the outer circumference of the crucible 2 so as to surround the outer circumference of the crucible 2; and by heating the crucible 2, the Si inclusion is heated to cause a sublimated gas leaked from the crucible 2 to be adsorbed by a heat insulating material, thus causing Si to be adsorbed. Then, a powder raw material 5 is allocated in the container body 2a as the crucible 2 and the crucible 2 wherein seed crystals 4 are allocated on a pedestal 3 established on the cover body 2b is prepared; and in such a state that a heat insulating material 11 obtained by the Si-adsorbing process and having adsorbed Si is arranged in the outer circumference of the crucible 2 so as to embrace the outer circumference of the crucible 2, the crucible 2 is heated to vegetate SiC single crystals 6 on the seed crystals 4.
    • 要解决的问题:为了提供一种SiC单晶的制造方法,该方法能够通过使用绝热材料配置在坩埚周围的制造装置来生长SiC单晶时,可以稳定地生长SiC单晶。解决方案: 在SiC单晶的制造方法中,将Si夹杂物作为坩埚2分配在容器主体2a中,制作盖体2b; 在坩埚2的外周配置由黑色铅构成的不具有吸收Si的绝热材料,以包围坩埚2的外周; 并且通过加热坩埚2,加热Si夹杂物,引起从坩埚2泄漏的升华气体被绝热材料吸附,从而使Si被吸附。 然后,制作作为坩埚2的容器主体2a中的粉末原料5,并且准备在形成在盖体2b上的基座3上分配晶种4的坩埚2。 并且在将坩埚2的外周配置为包围坩埚2的外周的状态下,将通过Si吸附法得到的吸附有Si的绝热材料11配置在坩埚2的外周,将坩埚2加热至 种子晶体上植物SiC单晶6。