Patent ID: 8522836
Filing Date: 2013-09-03
Classification: H01L

Abstract:
1. A substrate storage pod, comprising: a pod case including an opening and a hollow inner space for storing a substrate; a lid member which is to be fit-inserted into the opening to close and seal the opening; at least two exhaust ports arranged in the pod case so as to exhaust a replacement gas in the hollow inner space; and an exhaust volume extending in a direction of a width of the opening of the pod case, all sides of the exhaust volume being surrounded by a multi-hole partition member including multiple holes, wherein said exhaust volume fluidically communicates to the at least two exhaust ports, wherein said exhaust volume fluidically communicates to the hollow inner space only through the multiple holes of the multi-hole partition member to keep a pressure in the exhaust volume lower than a pressure in the hollow inner space, and wherein said exhaust volume includes a bottom area that includes the at least two exhaust ports and is partitioned on the inner bottom surface of the pod case by the multi-hole partition member, the bottom area being larger than cross sectional areas of flow paths of the exhaust ports in each of flow directions of gas flow being exhausted from the hollow inner space, so that said exhaust volume causes a major flow to invite dust into said exhaust volume from the hollow inner space through the multi-hole partition member.