Patent ID: 7210925
Filing Date: 2007-05-01
Classification: F27D,H01L

Abstract:
1. A heat treatment jig which comes into contact with silicon semiconductor substrates to be supported, wherein said jig is loaded onto a heat treatment boat in a vertical heat treatment furnace, comprising; a configuration of a ring structure or a solid disc structure both with the wall thickness of not less than 1.5 mm but not greater than 6.0 mm; a deflection displacement of 100 μm or less at the contact region with said silicon semiconductor substrate when loaded in said heat treatment boat; an outer diameter which is not less than 65% of the diameter of relevant silicon semiconductor substrate to be supported; and a surface roughness (Ra) of not less than 1.0 μm but not greater than 100 μm at the region to contact with said silicon semiconductor substrates.