Patent ID: 6340933
Filing Date: 2002-01-22
Classification: G08B,Y10S,Y10T

Abstract:
A pod for transporting a cassette of semiconductor wafers, comprising:a base for supporting said cassette thereon; a cover removably carried on said base for protectively covering said cassette; latch means carried on said base for latching said cover on said base, said latch means being actuatable from a latched condition in which said cover is latched said base to a released condition allowing removal of said cover from said base, said latch means includes a latch member shiftably mounted on said base, a drive plate and a drive pin carried on said plate, said drive pin being drivable by said plate to shift said latch member for latching and unlatching said cover; and indicator means coupled with said latch means for providing a visual indication of the condition of said latch means, said indicator means includes means responsive to the position of said drive pin to produce an electrical signal related to the condition of said latch means.