Invention Grant
US3601569A Device for crucible-free or floating-zone melting a crystalline rod, especially a semiconductor rod
失效
用于无结块或浮动区域熔化的装置一个晶体管，特别是一个半导体器件
- Patent Title: Device for crucible-free or floating-zone melting a crystalline rod, especially a semiconductor rod
- Patent Title (中): 用于无结块或浮动区域熔化的装置一个晶体管，特别是一个半导体器件
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Application No.: US3601569DApplication Date: 1969-10-07
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Publication No.: US3601569APublication Date: 1971-08-24
- Inventor: KELLER WOLFGANG
- Applicant: SIEMENS AG
- Assignee: Siemens Ag
- Current Assignee: Siemens Ag
- Priority: DE1802524 1968-10-11
- Main IPC: H05B6/32
- IPC: H05B6/32 ; C30B13/20 ; H01L21/208 ; H05B5/00 ; H05B9/02
Abstract:
Device for floating-zone melting a crystalline rod includes a flat-wound induction heating coil adapted to encircle a crystalline rod so as to maintain a molten zone therein, and a slotted hollow member of electrically conductive material disposed coaxially to the flat-wound coil in close coupling therewith, the hollow member having an axial length many times greater than that of the flat-wound coil.
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