WO2022065740A1 - 잉곳 성장 장치 - Google Patents
잉곳 성장 장치 Download PDFInfo
- Publication number
- WO2022065740A1 WO2022065740A1 PCT/KR2021/011953 KR2021011953W WO2022065740A1 WO 2022065740 A1 WO2022065740 A1 WO 2022065740A1 KR 2021011953 W KR2021011953 W KR 2021011953W WO 2022065740 A1 WO2022065740 A1 WO 2022065740A1
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- WIPO (PCT)
- Prior art keywords
- susceptor
- insulating member
- heat insulating
- coil
- ingot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/10—Crucibles or containers for supporting the melt
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/14—Heating of the melt or the crystallised materials
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/14—Heating of the melt or the crystallised materials
- C30B15/18—Heating of the melt or the crystallised materials using direct resistance heating in addition to other methods of heating, e.g. using Peltier heat
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
Definitions
- the present invention relates to an ingot growing apparatus.
- Single crystal silicon is used as a basic material for most solar light and semiconductor components, and these materials are manufactured as single crystals with high purity.
- One of these manufacturing methods is the Czochralski method.
- silicon is put into a crucible and the crucible is heated to melt the silicon.
- a single crystal seed is pulled upward while rotating while in contact with the molten silicon, an ingot having a predetermined diameter is grown.
- Czochralski continuously grows the ingot while supplementing the consumed molten silicon by continuously injecting solid polysilicon or molten silicon into the crucible. way to do it
- An ingot growth apparatus includes a growth furnace in which a main crucible for accommodating molten silicon to grow an ingot is disposed therein; a susceptor formed to surround the outer surface of the main crucible and heating the main crucible; a heater formed to surround the outer surface of the susceptor, receiving power to generate a magnetic field, and having a coil configured to heat the susceptor by electromagnetic induction by the magnetic field; and a heat insulating member disposed between the coil and the susceptor.
- the heat insulating member is made of a plate-shaped member formed on the outer surface of the susceptor, one side of the transverse direction of the heat insulating member and the other side of the heat insulating member on the outer side of the susceptor at one side of each other They may be disposed to face each other and to be spaced apart from each other.
- a non-magnetic material may be provided between one side of the heat insulating member in the transverse direction and the other side of the heat insulating member in the transverse direction.
- the heater may further include a shield formed to surround the outer surface of the coil and blocking the coil from being exposed to the inner space of the growth furnace.
- the heat insulating member may be disposed on the upper surface of the shield, and may be formed to partially cover the upper surface of the shield.
- the shield may be made of ceramic.
- the heat insulating member may be made of carbon fiber.
- the ingot growth apparatus may further include a cover member that blocks the heat insulating member from being exposed to the inner space of the growth furnace.
- the cover member may be made of a ceramic material.
- the cover member may include at least one of alumina (Al 2 O 3 ), zirconia (ZrO 2 ), silica (SiO 2 ), or silicon nitride (Si 3 N 4 ).
- the coil may include a cooling pipe through which cooling water flows inside the coil.
- the thickness of the heat insulating member may correspond to twice the thickness of the susceptor.
- Ingot growth apparatus by blocking the heat of the susceptor heat-insulating member from moving to the coil, it is possible to prevent the coil from being damaged by heat.
- the heat insulating member blocks the heat of the susceptor from being transferred to the coolant flowing inside the coil, it is possible to increase the efficiency of power energy for heating the susceptor.
- FIG. 1 is a view schematically showing an ingot growing apparatus according to an embodiment of the present invention.
- FIG. 2A is a cross-sectional view mainly illustrating the heater, the heat insulating member, and the cover member of FIG. 1 .
- FIG. 2B is a view illustrating a state in which the heat insulating member of FIG. 1 is viewed from above.
- 3 is a view showing the temperature of the hot zone of the ingot growth apparatus according to an embodiment of the present invention through simulation.
- FIG. 4 is a view showing the temperature of the hot zone of the ingot growth apparatus through simulation when there is no heat insulating member.
- FIG. 5 is a graph showing the temperature of the susceptor according to the material of the shield and the presence or absence of the heat insulating member through simulation.
- 6 to 8 are views showing the susceptor temperature and the ambient temperature of the susceptor according to the distance between the coil and the susceptor.
- 9 to 11 are diagrams showing the susceptor temperature and the ambient temperature of the susceptor according to the thickness of the insulating member through simulation.
- FIG. 12 is a view illustrating a susceptor temperature and an ambient temperature of the susceptor through simulation when the shield heat insulating member is disposed below the coil.
- FIG. 13 is a diagram illustrating a susceptor temperature and an ambient temperature of the susceptor through simulation when the shield heat insulating member is not disposed below the coil.
- an element “in front”, “behind”, “above” or “below” of another element means that, unless otherwise specified, it is directly in contact with another element, such as “front”, “rear”, “above” or “below”. It includes not only being disposed at the “lower side” but also cases in which another component is disposed in the middle.
- a component is “connected” with another component includes not only direct connection to each other, but also indirect connection to each other, unless otherwise specified.
- the arrow direction of the Z-axis is referred to as an upward direction of the growth path.
- the downward direction means a direction opposite to the upward direction.
- FIG. 1 is a view schematically showing an ingot growing apparatus according to an embodiment of the present invention.
- an ingot growth apparatus 100 includes a growth furnace 110 , a main crucible 120 , a susceptor 130 , a heater 140 and a heat insulating member 143 .
- a growth furnace 110 includes a main crucible 120 , a susceptor 130 , a heater 140 and a heat insulating member 143 .
- a heater 140 includes a heat insulating member 143 .
- the growth furnace 110 has an internal space 110a maintained in a vacuum state, and is formed so that the ingot I is grown in the internal space 110a.
- a main crucible 120 to be described later is disposed in the inner space 110a.
- the growth furnace 110 is provided with a vacuum pump (not shown) and an inert gas supply unit (not shown).
- the vacuum pump may maintain the internal space 110a in a vacuum atmosphere.
- the inert gas supply unit is the inside.
- An inert gas is supplied to the space 110a.
- the inert gas may be, for example, argon (Ar).
- the main crucible 120 is accommodated in the inner space 110a of the growth furnace 110 .
- the main crucible 120 may accommodate the molten silicon (M).
- M molten silicon
- the main crucible 120 is generally formed in a reverse dome shape.
- the main crucible 120 is not limited to being formed in an inverted dome shape, and may be formed in various shapes such as a cylindrical shape.
- the main crucible 120 is made of a quartz (quartz) material.
- the main crucible 120 is not limited to being made of a quartz material, and may include various materials that have heat resistance at a temperature of about 1400° C. or higher and withstand a sudden change in temperature.
- the single crystal seed (S) is in contact with the molten silicon (M) accommodated in the main crucible 120, the wire (W) connected to the upper side of the growth furnace 110 is the single crystal seed (S)
- the ingot (I) having a predetermined diameter is grown along the pulling direction (Z axis) of the ingot (I).
- the growth furnace 110 is provided with a pre-melting unit (not shown) for receiving and melting a solid silicon raw material.
- the pre-melting unit supplies the molten silicon to the main crucible 120 .
- the susceptor 130 surrounds the outer surface of the main crucible 120 .
- the susceptor 130 supports the main crucible 120 .
- the inner surface of the susceptor 130 has a shape corresponding to the outer surface of the main crucible 120 .
- the susceptor 130 also has an inverted dome shape.
- the susceptor 130 is made of a graphite material.
- the susceptor 130 is not limited to being made of a graphite material, and may include various materials having strong heat resistance and conductor properties.
- the susceptor 130 maintains the state in which the main crucible 120 receives the molten silicon (M). (120) is supported while wrapping.
- a susceptor support part 150 for supporting the susceptor 130 is disposed on the lower side 112 of the growth path 110 .
- the upper end of the susceptor support 150 has a shape corresponding to the lower end of the susceptor 130 .
- the susceptor support part 150 rotates together with the susceptor 130 . Accordingly, in a state in which the main crucible 120 accommodates the molten silicon M, the main crucible 120 is rotated together with the susceptor 130 .
- the growth path 110 is provided with a driving unit (not shown) that provides a rotational force to rotate the susceptor support (150).
- the susceptor support part 150 is rotatably connected to the driving part.
- the driving unit receives power and provides a rotational force to the susceptor support unit 150 , the main crucible 120 is rotated together with the susceptor 130 .
- a heater 140 for heating the susceptor 130 is provided in the growth furnace 110 .
- the heater 140 includes a coil 141 receiving power to generate a magnetic field and a shield 142 surrounding the coil 141 .
- the coil 141 is formed to surround the outer surface of the susceptor 130 .
- the coil 141 receives power to generate a magnetic field.
- the coil 141 generates a current in the susceptor 130 by electromagnetic induction by a magnetic field.
- the current generated in the susceptor 130 is converted into thermal energy.
- the heater 140 heats the susceptor 130 .
- the heat of the susceptor 130 is conducted to the main crucible 120 , and the susceptor 130 heats the main crucible 120 .
- the shield 142 supports the coil 141 so that the coil 141 is maintained in a predetermined shape.
- the shield 142 is made of ceramic.
- the shield 142 may include at least one of alumina (Al 2 O 3 ), zirconia (ZrO 2 ), silica (SiO 2 ), or silicon nitride (Si 3 N 4 ).
- the shield 142 blocks the coil from being exposed to the inner space 110a of the growth path 110 . Accordingly, the shield 142 blocks the coil 141 from being exposed to the inner space 110a of the growth furnace 110, so that the coil 141 receives power to form a magnetic field. , to prevent arc discharge from occurring due to plasma phenomenon in the vacuum state or arc discharge from being generated by the coil 141 coming into contact with an inert gas (eg, argon) existing in the inner space 110a do.
- an inert gas eg, argon
- a heater support unit 160 supporting the heater 140 is disposed below the growth furnace 110 .
- the heater support 160 is generally formed in a cylindrical shape.
- the susceptor support 150 is disposed inside the heater support 160 having the cylindrical shape.
- the upper end of the heater support 160 has a shape corresponding to the lower end of the heater 140 , and the heater 140 is disposed on the upper end of the heater support 160 .
- a heat insulating member 143 is provided between the susceptor 130 and the coil 141 to block the movement of heat.
- the heat insulating member 143 is surrounded by the cover member 144 to prevent exposure to the inner space 110a of the growth furnace 110 .
- the heat insulating member 143 and the cover member will be described in detail later with reference to the drawings.
- FIG. 2A is a cross-sectional view mainly illustrating the heater, the heat insulating member, and the cover member of FIG. 1
- FIG. 2B is a view showing the heat insulating member of FIG. 1 as viewed from above.
- the heat insulating member 143 is disposed on the upper surface of the shield 142 and is formed to partially cover the upper surface of the shield 142 .
- the heat insulating member 143 is formed to partially surround the outer surface of the susceptor 130 .
- the heat insulating member 143 may be formed of a plate-shaped member disposed between the shield 142 and the susceptor 130 .
- a cooling pipe 145 through which cooling water flows is formed inside the coil 141 .
- the temperature of the cooling water of the cooling pipe 145 is approximately 300 K.
- the cooling water flowing along the cooling pipe 145 cools the heat generated from the coil 141 .
- the heat insulating member 143 blocks the heat of the susceptor 130 from moving to the coil 141 .
- the heat insulating member 143 blocks the heat of the susceptor 130 from moving to the coolant flowing inside the coil 141 . Accordingly, the heat of the susceptor 130 moves to the main crucible 120 , thereby increasing the efficiency of power energy for heating the main crucible 120 .
- One transverse side surface 143a of the heat insulating member 143 and the other side side 143b in the transverse direction of the heat insulating member 143 are, as shown in FIG. They are arranged to face each other and to be spaced apart. In addition, at least one cut-out area is formed in the heat insulating member 143 . That is, the heat insulating member 143 is not formed in a loop shape. Accordingly, one side 143a of the heat insulating member 143 and the other side 143b of the heat insulating member 143 are not electrically connected, so that the heat insulating member 143 is prevented from being heated by electromagnetic induction. .
- the heat insulating member 143 may be provided as a plurality of heat insulating members separated from each other by a plurality of cut areas.
- the plurality of heat insulating members are electrically insulated from each other by the plurality of cut-out regions.
- the heat insulating member 143 is made of carbon fiber.
- the heat insulating member 143 is formed in the form of a cloth (felt) including carbon fibers.
- the heat insulating member 143 may have a structure in which a fabric including carbon fibers is laminated.
- the heat insulating member 143 may be formed of zirconia (ZrO 2 ) or silica (SiO 2 ) in powder form.
- the cover member 144 is formed to surround the heat insulating member 143 .
- the cover member 144 is formed to cover a portion of the shield 142 adjacent to the heat insulating member 143 .
- the cover member 144 fills a space between the susceptor 130 and the heat insulating member 143 . Accordingly, the cover member 144 blocks the heat insulating member 143 from being exposed to the inner space 110a (refer to FIG. 1 ) of the growth furnace 110 (refer to FIG. 1 ), thereby preventing the heat insulating member 143 from being exposed to the inner space 110a (refer to FIG. 1 ). ) is prevented from generating an arc discharge due to plasma phenomenon in a vacuum state or the heat insulating member 143 from being in contact with an inert gas existing in the inner space 110a to prevent arc discharge from occurring.
- the cover member 144 is made of ceramic.
- the cover member 144 is made of any one of alumina (Al 2 O 3 ), zirconia (ZrO 2 ), silica (SiO 2 ), or silicon nitride (Si 3 N 4 ).
- the cover member 144 may be made of the same material as the shield 142 .
- the cover member 144 may be formed of a coating layer to cover a portion of the shield 142 adjacent to the heat insulating member 143 while covering the heat insulating member 143 . there is.
- a non-magnetic material 146 is provided between the one transverse side surface 143a of the heat insulating member 143 and the other transverse side side 143b of the heat insulating member 143 .
- the non-magnetic material 143b electrically insulates between one side 143a of the heat insulating member 143 and the other side 143b of the heat insulating member 143 .
- the non-magnetic material 146 is made of ceramic.
- the non-magnetic material 146 is made of alumina (Al 2 O 3 ), zirconia (ZrO 2 ), silica (SiO 2 ), or silicon nitride (Si 3 N 4 ).
- a distance e between one side 143a of the heat insulating member 143 and the other side 143b of the heat insulating member 143 is approximately 0.5 mm or more.
- the thickness of the non-magnetic material 146 is also 0.5 mm.
- a plurality of cut regions may be formed in the heat insulating member 143 , and the non-magnetic material 146 may be filled in the plurality of cut regions.
- the thickness t of the heat insulating member is 40 to 60 mm.
- the thickness t of the heat insulating member will be described in detail later with reference to the drawings.
- FIG. 3 is a view showing the temperature of the hot zone of the ingot growth apparatus according to an embodiment of the present invention through simulation
- FIG. 4 is a view showing the temperature of the hot zone of the ingot growing apparatus through simulation when there is no heat insulating member.
- a hotzone of the ingot growth apparatus 100 is defined as a region including the susceptor 130 (refer to FIG. 1 ) and the surrounding components of the susceptor 130 (refer to FIG. 1 ).
- the temperature of the side portion of the susceptor is close to about 1695 °C, but the heat insulating member between the coil and the susceptor If not deployed, the temperature of the susceptor does not exceed approximately 1385 °C. Since the melting point of silicon corresponds to about 1414° C., when the heat insulating member is not disposed, more power energy is consumed to increase the temperature of the susceptor.
- the efficiency of power energy for increasing the temperature of the susceptor is increased.
- FIG. 5 is a graph showing the temperature of the susceptor according to the material of the shield and the presence or absence of the heat insulating member through simulation.
- the temperature of the susceptor is Let's look at the impact.
- the temperature of the susceptor is the same regardless of the material of the shield. It is lower than the temperature of the susceptor when the heat insulating member is disposed.
- the heat insulating member of the ingot growth apparatus increases the heat generating performance of the susceptor, thereby reducing power and energy consumption for heating the susceptor.
- 6 to 8 are diagrams showing the susceptor temperature and the ambient temperature of the susceptor according to the distance between the coil and the susceptor through simulation.
- the coil shown in FIG. 6 is spaced apart from the susceptor by a first distance
- the coil shown in FIG. 7 is spaced apart from the susceptor by a second distance
- the coil shown in FIG. It is disposed to be spaced apart from the susceptor by a third distance.
- the second distance is longer than the first distance
- the third distance is longer than the second distance.
- a heat insulating member having the same thickness is disposed between the coil shown in FIGS. 6 to 8 and the susceptor.
- the susceptor shown in FIG. 6 generates heat at a higher overall temperature than the susceptor shown in FIGS. 7 and 8 . This is because, as the distance between the coil and the susceptor increases, the heat of the susceptor moves to the space between the coil and the susceptor, and the heat loss of the susceptor increases.
- the power energy for heating the susceptor shown in FIG. 6 is 49.75 kW
- the power energy for heating the susceptor shown in FIG. 7 is 53.47 kW
- the power for heating the susceptor shown in FIG. 8 .
- the energy is 51.04 kW.
- 9 to 11 are diagrams showing the susceptor temperature and the ambient temperature of the susceptor according to the thickness of the insulating member through simulation.
- the coil illustrated in FIG. 9 is spaced apart from the susceptor by a fourth distance
- the coil illustrated in FIG. 10 is spaced apart from the susceptor by a fifth distance
- the coil illustrated in FIG. 11 is the It is disposed spaced apart from the susceptor by a sixth distance.
- the fifth distance is longer than the fourth distance
- the sixth distance is longer than the fifth distance.
- the thickness of the heat insulating member shown in FIG. 9 is 10 mm
- the thickness of the heat insulating member shown in FIG. 10 is 30 mm
- the thickness of the heat insulating member shown in FIG. 11 is 50 mm.
- the power energy for heating the susceptor shown in FIG. 9 is 65.76 kW
- the power energy for heating the susceptor shown in FIG. 10 is 53.88 kW
- the power for heating the susceptor shown in FIG. 11 The energy is 45.95 kW.
- the thickness of the heat insulating member may correspond to approximately twice the thickness of the susceptor.
- the thickness of the heat insulating member is 50 mm.
- the thickness of the heat insulating member is less than twice the thickness of the susceptor, power consumption is increased.
- the thickness of the heat insulating member is greater than twice the thickness of the susceptor, power consumption is not increased, but the cost of the heat insulating member is increased.
- FIG. 12 is a view showing the susceptor temperature and the ambient temperature of the susceptor through simulation when the shield heat insulating member is disposed below the coil
- FIG. 13 is the susceptor when the shield heat insulating member is not disposed below the coil It is a diagram showing the temperature and the ambient temperature of the susceptor through simulation.
- the lower side of the coil is provided with a shield heat insulating member 148 to block heat transfer.
- the temperature of the susceptor and the ambient temperature of the susceptor when the shield heat insulating member 148 shown in FIG. 12 is disposed is the temperature of the susceptor and the surrounding temperature of the susceptor when the shield heat insulating member shown in FIG. 13 is not disposed higher than the temperature.
- the power energy for heating the susceptor shown in FIG. 12 is 45.98 kW
- the power energy for heating the susceptor shown in FIG. 13 is 49.75 kW.
- the shield heat insulating member 148 blocks heat radiated from the susceptor. That is, the power energy for heating the susceptor when the shield heat insulating member 148 is disposed is about 7.6% of the power energy for heating the susceptor when the shield heat insulating member is not disposed. It has a savings effect.
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Abstract
Description
Claims (12)
- 잉곳을 성장시키기 위하여 용융된 실리콘을 수용하는 주 도가니가 내부에 배치되는 성장로;상기 주 도가니의 외측면을 감싸도록 형성되고, 상기 주 도가니를 가열하는 서셉터;상기 서셉터의 외측면을 감싸도록 형성되고, 전원을 공급받아 자기장을 발생시키고, 상기 자기장에 의한 전자기 유도에 의해 상기 서셉터를 가열시키는 코일을 구비하는 히터; 및상기 코일과 상기 서셉터 사이에 배치되는 단열 부재를 포함하는, 잉곳 성장 장치.
- 제1 항에 있어서,상기 단열 부재는 상기 서셉터의 외측면에 형성되는 판 형상 부재로 이루어지며,상기 단열 부재의 횡방향 일측면과 상기 단열 부재의 횡방향 타측면은 상기 서셉터의 외측면 일측에서 서로 대향하며 이격되도록 배치되는, 잉곳 성장 장치.
- 제2 항에 있어서,상기 단열 부재의 횡방향 일측면과 상기 단열 부재의 횡방향 타측면 사이에는 비자성체가 구비되는, 잉곳 성장 장치.
- 제1 항에 있어서,상기 히터는, 상기 코일의 외측면을 감싸도록 형성되고, 상기 코일이 상기 성장로의 내부 공간에 노출되는 것을 차단하는 쉴드를 더 포함하는, 잉곳 성장 장치.
- 제4 항에 있어서,상기 단열 부재는 상기 쉴드의 상측면 상에 배치되며, 상기 쉴드의 상측면을 일부 덮도록 형성되는, 잉곳 성장 장치.
- 제4 항에 있어서,상기 쉴드는 세라믹으로 이루어지는, 잉곳 성장 장치.
- 제1 항에 있어서,상기 단열 부재는 카본 섬유(carbon fiber)로 이루어지는, 잉곳 성장 장치.
- 제1 항에 있어서,상기 단열 부재가 상기 성장로의 내부 공간에 노출되는 것을 차단하는 커버 부재를 더 포함하는, 잉곳 성장 장치.
- 제8 항에 있어서,상기 커버 부재는 세라믹 재질로 이루어지는, 잉곳 성장 장치.
- 제8 항에 있어서,상기 커버 부재는 알루미나(Al2O3), 지르코니아(ZrO2), 실리카(SiO2) 또는 실리콘 나이트라이드(Si3N4) 중 적어도 하나 이상을 포함하는, 잉곳 성장 장치.
- 제1 항에 있어서,상기 코일은, 상기 코일의 내부에 냉각수가 흐르는 냉각관을 포함하는, 잉곳 성장 장치.
- 제1 항에 있어서,상기 단열 부재의 두께는 상기 서셉터의 두께의 2배에 해당되는, 잉곳 성장 장치.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20230345A NO20230345A1 (en) | 2020-09-28 | 2021-09-03 | Ingot growth apparatus |
| US18/028,609 US12416095B2 (en) | 2020-09-28 | 2021-09-03 | Ingot growth apparatus |
| US19/294,756 US20250361645A1 (en) | 2020-09-28 | 2025-08-08 | Ingot growth apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200126319A KR102271716B1 (ko) | 2020-09-28 | 2020-09-28 | 잉곳 성장 장치 |
| KR10-2020-0126319 | 2020-09-28 |
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| US18/028,609 A-371-Of-International US12416095B2 (en) | 2020-09-28 | 2021-09-03 | Ingot growth apparatus |
| US19/294,756 Continuation US20250361645A1 (en) | 2020-09-28 | 2025-08-08 | Ingot growth apparatus |
Publications (1)
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| WO2022065740A1 true WO2022065740A1 (ko) | 2022-03-31 |
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| US (2) | US12416095B2 (ko) |
| KR (1) | KR102271716B1 (ko) |
| CN (2) | CN216237375U (ko) |
| NO (1) | NO20230345A1 (ko) |
| WO (1) | WO2022065740A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114875479A (zh) * | 2022-06-21 | 2022-08-09 | 西安奕斯伟材料科技有限公司 | 加热器组件和单晶炉 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102271716B1 (ko) | 2020-09-28 | 2021-07-01 | 한화솔루션 주식회사 | 잉곳 성장 장치 |
| KR102754902B1 (ko) * | 2023-10-18 | 2025-01-14 | 한국세라믹기술원 | CaF2 단결정 성장을 위한 초크랄스키법 핫존 최적화 방법 |
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- 2020-12-03 CN CN202011404804.XA patent/CN114277437B/zh active Active
-
2021
- 2021-09-03 US US18/028,609 patent/US12416095B2/en active Active
- 2021-09-03 WO PCT/KR2021/011953 patent/WO2022065740A1/ko not_active Ceased
- 2021-09-03 NO NO20230345A patent/NO20230345A1/en unknown
-
2025
- 2025-08-08 US US19/294,756 patent/US20250361645A1/en active Pending
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| KR20010020315A (ko) * | 1998-03-12 | 2001-03-15 | 모리 레이지로 | 단결성 원료 보조 용해장치 및 단결정 원료 용해방법 |
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| CN114875479A (zh) * | 2022-06-21 | 2022-08-09 | 西安奕斯伟材料科技有限公司 | 加热器组件和单晶炉 |
| CN114875479B (zh) * | 2022-06-21 | 2024-02-27 | 西安奕斯伟材料科技股份有限公司 | 加热器组件和单晶炉 |
| US12264409B2 (en) | 2022-06-21 | 2025-04-01 | Xi'an ESWIN Material Technology Co., Ltd. | Heater assembly and single crystal puller |
Also Published As
| Publication number | Publication date |
|---|---|
| NO20230345A1 (en) | 2023-03-28 |
| CN114277437B (zh) | 2025-04-25 |
| US20250361645A1 (en) | 2025-11-27 |
| KR102271716B1 (ko) | 2021-07-01 |
| CN114277437A (zh) | 2022-04-05 |
| US20240076798A1 (en) | 2024-03-07 |
| US12416095B2 (en) | 2025-09-16 |
| CN216237375U (zh) | 2022-04-08 |
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