Patent ID: 8783463

Claim:
A front opening wafer container for wafers 300 mm and larger, the container comprising: a container portion having container wall that extends around a closed left side, a closed right side, a closed bottom, a closed top, and a closed backside defining an open interior, the container portion having a plurality of horizontal wafer shelves spaced apart, affixed therein and defining a generally cylindrical wafer receiving region in the open interior for holding a stack of horizontal spaced apart wafers seated in the shelves, a door frame defining an open front, wherein the container portion wall at the back side has a inwardly extending recess extending from the top of the container portion to the bottom of the container portion, at both lateral sides of the recess a protruding portion of the shell defines a pair of upright feet for seating the wafer container when the wafer container is rotated backwardly with the open front facing upwardly, the feet defining interior compartments, each compartment having a pair of opposing side wall portions, a back wall portion, two interior vertical corners, a top wall portion and a bottom wall portion; a door to fit in the open front and latchable to the door frame; at least one elongate tubular environmental control component, secured within one of said compartments and being spaced from the pair of side wall portions and the back wall portion, the elongate tubular environmental control component having a length and the length extending substantially a distance between the top wall portion and the bottom wall portion, wherein the elongate tubular environmental control component has an axis that is upright and the elongate tubular environmental control component is connected to the bottom of the container portion at a purge port that is offset from the axis of the tubular environmental control component.