Patent ID: 6285011
Filing Date: 2001-09-04
Classification: C30B,Y10T

Abstract:
An electrical resistance heater for use in a crystal puller used for growing monocrystalline ingots according to the Czochralski method, the crystal puller having a housing, a crucible in the housing for containing molten source material and a pulling mechanism for pulling a growing ingot upward from the molten source material, the heater comprising a heating element sized and shaped for placement in the housing of the crystal puller for radiating heat within the housing, the heating element having heating segments arranged in a generally side-by-side relationship and being electrically connected together, each heating segment comprising a web and a flange projecting outwardly from the web and being non-coplanar therewith thereby to reduce the cross-sectional area of the segment for increasing the electrical resistance and power output of the heater, the web and the flange being sized relative to each other such that the thickness of the web is substantially less than the width of the flange.