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公开(公告)号：US11578423B2
公开(公告)日：2023-02-14
申请号：US16617073
申请日：2018-07-03
Inventor： Hongming Tang , Linjian Fu , Liming Liu , Saibo Liu
Abstract: A magnet coil for magnetic Czochralski single crystal growth includes: a first coil, a second coil, and an auxiliary coil arranged between the first coil and the second coil. A distance between the first coil and a first edge of the auxiliary coil close to the first coil is equal to a distance between the second coil and a second edge of the auxiliary coil close to the second coil. The auxiliary coil, the first coil and the second coil have a common central axis. When being energized, a direction of a current in the first coil is opposite to a direction of a current in the second coil, and a magnetic field generated by a current in the auxiliary coil is used for enhancing a cusp magnetic field between the first coil and the second coil.
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公开(公告)号：US20210123155A1
公开(公告)日：2021-04-29
申请号：US16617073
申请日：2018-07-03
Inventor： Hongming Tang , Linjian Fu , Liming Liu , Saibo Liu
Abstract: A magnet coil for magnetic Czochralski single crystal growth includes: a first coil a second coil, and an auxiliary coil arranged between the first coil and the second coil. A distance between the first coil and a first edge of the auxiliary coil close to the first coil is equal to a distance between the second coil and a second edge of the auxiliary coil close to the second coil. The auxiliary coil, the first coil and the second coil have a common. When being energized, a direction of a current in the first coil is opposite to a direction of a current in the second coil, and a magnetic field generated by a current in the auxiliary coil is used for enhancing the a cusp magnetic field between the first coil and the second coil.
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