RU2003106320A - METHOD OF REGULATING THE MELT LEVEL IN THE TIGEL IN THE PROCESS OF GROWING CRYSTALS BY THE CHOCHRAL METHOD - Google Patents

METHOD OF REGULATING THE MELT LEVEL IN THE TIGEL IN THE PROCESS OF GROWING CRYSTALS BY THE CHOCHRAL METHOD

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Publication number
RU2003106320A
RU2003106320A RU2003106320/15A RU2003106320A RU2003106320A RU 2003106320 A RU2003106320 A RU 2003106320A RU 2003106320/15 A RU2003106320/15 A RU 2003106320/15A RU 2003106320 A RU2003106320 A RU 2003106320A RU 2003106320 A RU2003106320 A RU 2003106320A
Authority
RU
Russia
Prior art keywords
angle
melt
melt level
vertical
regulating
Prior art date
Application number
RU2003106320/15A
Other languages
Russian (ru)
Other versions
RU2227819C1 (en
Inventor
Сергей Алексеевич Сидельников
Сергей Николаевич Богомолов
Михаил Исакович Левин
Юрий Викторович Буколов
Валерий Михайлович Шушков
Бронислав Иванович Кудинов
Максим Александрович Макалинский
Original Assignee
Сергей Алексеевич Сидельников
Filing date
Publication date
Application filed by Сергей Алексеевич Сидельников filed Critical Сергей Алексеевич Сидельников
Priority to RU2003106320/15A priority Critical patent/RU2227819C1/en
Priority claimed from RU2003106320/15A external-priority patent/RU2227819C1/en
Application granted granted Critical
Publication of RU2227819C1 publication Critical patent/RU2227819C1/en
Publication of RU2003106320A publication Critical patent/RU2003106320A/en

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Claims (2)

1. Способ регулирования уровня расплава в процессе выращивания кристаллов методом Чохральского путем контроля положения уровня расплава с помощью видеокамеры и подъема тигеля до достижения заданного положения уровня расплава, отличающийся тем, что видеокамеру устанавливают с наклоном к вертикали, а контроль положения уровня расплава осуществляют путем определения с помощью видеоизображения поверхности расплава и выращиваемого кристалла угла между вертикалью и лучом, проходящим через фокус оптической системы видеокамеры и центр окружности, образованной выращиваемым кристаллом на границе с расплавом.1. The method of regulating the melt level in the process of growing crystals by the Czochralski method by controlling the position of the melt level using a video camera and raising the crucible to reach a predetermined position of the melt level, characterized in that the video camera is installed with an inclination to the vertical, and the position of the melt level is controlled by determining with using a video image of the surface of the melt and the grown crystal, the angle between the vertical and the beam passing through the focus of the optical system of the video camera and the center of the of life formed by the grown crystal at the boundary with the melt. 2. Способ по п.1, отличающийся тем, что указанный угол γ определяют путем выделения из общего видеосигнала пикселей, принадлежащих границе кристалл-расплав, и рассчитывают угол γ по уравнению2. The method according to claim 1, characterized in that said angle γ is determined by extracting from the common video signal pixels belonging to the crystal-melt boundary, and the angle γ is calculated by the equation γ=α+β×VO/Vy,γ = α + β × V O / V y , где α - угол между нижней стороной угла охвата видеокамеры в плоскости угла γ и вертикалью;where α is the angle between the lower side of the angle of the camera in the plane of the angle γ and the vertical; β - угол охвата видеокамеры в плоскости угла γ;β is the angle of the video camera in the plane of the angle γ; Vy - число пикселей по вертикали, соответствующее углу β;V y is the number of vertical pixels corresponding to the angle β; VO - количество пикселей по вертикали, соответствующее углу β’ между лучом, проходящим через центр мениска и фокус видеокамеры и нижней стороной угла β.V O is the number of vertical pixels corresponding to the angle β 'between the beam passing through the center of the meniscus and the focus of the camera and the lower side of the angle β.
RU2003106320/15A 2003-03-06 2003-03-06 Method of control of level of melt in crucible in the course of crystal growth RU2227819C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003106320/15A RU2227819C1 (en) 2003-03-06 2003-03-06 Method of control of level of melt in crucible in the course of crystal growth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003106320/15A RU2227819C1 (en) 2003-03-06 2003-03-06 Method of control of level of melt in crucible in the course of crystal growth

Publications (2)

Publication Number Publication Date
RU2227819C1 RU2227819C1 (en) 2004-04-27
RU2003106320A true RU2003106320A (en) 2004-09-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003106320/15A RU2227819C1 (en) 2003-03-06 2003-03-06 Method of control of level of melt in crucible in the course of crystal growth

Country Status (1)

Country Link
RU (1) RU2227819C1 (en)

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