Patent ID: 8464872
Filing Date: 2013-06-18
Classification: B65D,H01L

Abstract:
1. A substrate storage container comprising: a container main body that stores a plurality of disc-shaped substrates in a parallel manner; a substrate transfer opening that is formed in the container main body in order to transfer the disc-shaped substrates in the container main body; a lid body that is attached in a detachable manner to the substrate transfer opening from outside in order to seal the substrate transfer opening; a back side supporting portion that positions and holds each of the disc-shaped substrates in a back side area inside of the container main body as seen from the substrate transfer opening; a lid side retainer that is provided at an inner wall portion of the lid body and that positions and holds each of the disc-shaped substrates; and a substrate placement piece on which the disc-shaped substrate is placed at an area proximal to the substrate transfer opening, when the lid body is not attached to the substrate transfer opening, wherein the substrate placement piece is provided so as to be movable between a supporting position overlapping with the disc-shaped substrate, as seen from a vertical direction with respect to a surface of the disc-shaped substrate, and enabling the disc-shaped substrate to be placed thereon, and a retracted position not overlapping with the disc-shaped substrate, and wherein the substrate storage container further comprises: a placement piece forced retraction means that forcibly moves the substrate placement piece to the retracted position accompanying the lid body being attached to the substrate transfer opening; and a placement piece return means that causes the substrate placement piece to return to the supporting position when the lid body enters a state not attached to the substrate transfer opening.