Patent ID: 7798811

Claim:
A vertical type heat processing apparatus, comprising: a heating furnace having a furnace port formed at a bottom portion thereof; a pair of substrate holding tools, each adapted to hold multiple substrates and configured to be carried into the heating furnace so as to perform a heating process to the substrates; a cover adapted to close the furnace port of the heating furnace; a heat insulating mount provided on the cover; a rotating mechanism provided to the cover and adapted to rotate the cover and the heat insulating mount; a lifting mechanism adapted to raise and lower the cover; a table provided adjacent to a position just below the heating furnace; and a carrier mechanism adapted to carry each of the pair of substrate holding tools between a position on the heat insulating mount and a position on the table, wherein a locking part is provided to either one of each substrate holding tool and the heat insulating mount, and a part to be locked is provided to the other thereof, such that the locking part and the part to be locked can be engaged with and disengaged from each other, by rotating the heat insulating mount due to the rotating mechanism, while each substrate holding tool is held just above the heat insulating mount due to the carrier mechanism.