Patent ID: 6966771

Claim:
A boat for a thermal process comprising: a plurality of pillars, a plurality of claws formed in each of the pillars in a height direction at predetermined intervals, a plurality of supporting plates mounted in a tier-like manner between the plurality of pillars via the claws, each supporting plate having an object-to-be-processed mounting surface on which an object to be processed can be mounted, and a groove and a through hole provided in the object-to-be-processed mounting surface, wherein the plurality of pillars are arranged at least on the left hand and on the right hand of the supporting plated, and the supporting plate has a left engaging part that can be engaged with a claw of the pillar on the left hand of the supporting plates in order to prevent dropping of the supporting plate, and a right engaging part that can be engaged with a claw of the pillar on the right hand of the supporting plates in order to prevent the dropping of the supporting plate.