Patent ID: 9105672
Filing Date: 2015-08-11
Classification: F27B,H01L

Abstract:
1. A heat treatment apparatus, installed in a clean room having a floor, comprising: a heat treatment furnace including a vertical processing chamber having a furnace opening at the top and adapted to house and heat-treat a plurality of processing objects, a heat insulator that surrounds the circumference of the processing chamber, and a heater provided on the inner peripheral surface of the heat insulator; a lid for closing the furnace opening of the processing chamber; a holding tool, hung from the lid, for holding the plurality of processing objects in multiple stages; and a lifting mechanism for raising and lowering the lid to open and close the furnace opening by the lid and to carry the holding tool out of and into the processing chamber, wherein the heat treatment furnace is installed beneath the floor of the clean room, and the lifting mechanism is installed above the floor of the clean room, wherein the outer circumference of the heat treatment furnace is covered with a heater cover, and a second exhaust line is connected to the heater cover.