Patent ID: 7975376

Claim:
A manufacturing method of a semiconductor device, comprising: inserting a substrate holder on which substrates are held in a multistage manner in a substantially vertical direction into a substrate treatment chamber, performing heat treatment to the substrates in the substrate treatment chamber, sensing a holding condition of the substrates held in the substrate holder, and transferring substrates other than a substrate determined to be abnormal and at least one of the substrates contacting the substrate determined to be abnormal in the substrate holder by a substrate transfer unit, wherein in transferring substrates, when all of a predetermined number of substrates to be carried are determined to be normal in the substrate holder, all of the predetermined number of substrates are carried together, and when at least one of the predetermined number of substrates is determined to be abnormal in the substrate holder, substrates other than the substrate determined to be abnormal in the predetermined number of substrates and the at least one of the substrates contacting the substrate determined to be abnormal in the substrate holder are carried one at a time.