Patent attributes
Provided is a substrate transfer method for sequentially transferring a substrate between a heat treatment chamber and another chamber different from the heat treatment chamber using a transfer unit having a first pick and a second pick. An unprocessed substrate is held by the first pick, and the substrate is transferred to the heat treatment chamber. A processed substrate, heat-treated in the heat treatment chamber, is held by the second pick, and the unprocessed substrate held by the first pick is loaded into the heat treatment chamber. The processed substrate held by the second pick is transferred to the other chamber. An unprocessed substrate in the other chamber is held by the first pick, the processed substrate held by the second pick is loaded into the other chamber, and then both the first pick and the second pick are put into a state of not holding a substrate.
