Ion implanter
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United States of America Patent
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Dec 22, 2009
Grant Date -
Jun 12, 2008
app pub date -
Oct 10, 2007
filing date -
Oct 11, 2006
priority date (Note) -
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Abstract
An analyzing electromagnet constituting an ion implanter has a first inner coil, a second inner coil, three first outer coils, three second outer coils, and a yoke. The inner coils are saddle-shaped coils cooperating with each other to generate a main magnetic field which bends an ion beam in the X direction. Each of the outer coils is a saddle-shaped coil which generates a sub-magnetic field correcting the main magnetic field. Each of the coils has a configuration where a notched portion is disposed in a fan-shaped cylindrical stacked coil configured by: winding a laminations of an insulation sheet and a conductor sheet in multiple turn on an outer peripheral face of a laminated insulator; and forming a laminated insulator on an outer peripheral face.
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