Abstract: An enclosed semiconductor wafer holder, and a cover providing isolation control of semiconductor wafers that is simple, lower cost, and non-obtrusive is described. The cover includes a sealing perimeter that creates a hermetic seal when engaged with the semiconductor wafer holder. The holder also includes a purging arrangement attached to the holder that allows an active gentle purging of inert gas into the sealed semiconductor wafer holder.

Abstract: An enclosed semiconductor wafer holder, and a cover providing isolation control of semiconductor wafers that is simple, lower cost, and non-obtrusive is described. The cover includes a sealing perimeter that creates a hermetic seal when engaged with the semiconductor wafer holder. The holder also includes a purging arrangement attached to the holder that allows an active gentle purging of inert gas into the sealed semiconductor wafer holder.

Abstract: The mobile carrier for an augmentative communication device of the present invention encompasses an apparatus enabling the carried augmentative communication device and carrier to be pushed or pulled to accommodate users preference for walking and their disability. The handle of the carrier is adjustable, to accommodate different people of different heights, as well as to adapt to individual needs of users depending upon the severity of their handicap, and the carrier is foldable to a cane configuration for instances where there is insufficient space to allow the carrier to be used in its rolling configuration.