Patent ID: 7325698

Claim:
A sealable container for holding a plurality of wafers in an axially aligned spaced apart relation, the container comprising: an enclosure portion defining an interior space and having a door frame defining an access for inserting and removing the wafers from the enclosure portion; a door sealably fittable in the door frame to close the access, the door including a plurality of walls and a transparent panel defining an open interior of the door, the transparent panel having an inside facing surface and at least one operable latch mechanism disposed in the door for securing the door in place in the door frame, the at least one operable latch mechanism accessible and operable from exterior of the door through an opening in the transparent panel; and a textured region that captures particles, the textured region being defined on the inside facing surface of the transparent panel of the door and having a texturing discrete and isolated from areas of the inside facing surface that are outside the textured region, the textured region being_proximate the at least one operable latch mechanism and disposed around the opening in the transparent panel on the inside surface, the texturing of the textured region including at least one of an irregular and a repeating geometry.