Patent ID: RE40513

Claim:
A wafer enclosure for holding a plurality of wafers in a horizontal stacked configuration, the enclosure having a wall with an inwardly facing surface, an outwardly facing surface, an attachment opening in said wall, said attachment opening having a diameter, a front opening for passing wafers to and from said enclosure, a door to close said front opening, and an elongate wafer engagement component for contacting the edge portions of wafers stacked in the enclosure, the wafer engagement component comprising a base portion that extends along the inwardly facing surface, an attachment portion integral with said base portion for insertion into said attachment opening, the attachment portion having a shank portion extending through the attachment opening and a flange portion at the end of said shank portion opposite the base portion for engagement with the outwardly facing surface and for retaining the attachment portion in the attachment opening thereby securing the wafer engagement component to the wall, the flange portion configured to allow insertion of the attachment portion into the attachment opening by deflecting laterally the flange portion, the wafer engagement component engaging the wall in at least three non-linearly positioned points for providing a stable foundation for the wafer engagement component on the wall.