Patent ID: 8528738
Filing Date: 2013-09-10
Classification: H01L

Abstract:
1. A container for holding a plurality of semiconductor wafers comprising: a cassette defining a plurality of slots, each slot for receiving a separate one of the semiconductor wafers; an enclosure adapted to receive the cassette and wafers therein, the enclosure comprising a base portion and a cover portion sealably securable to the base portion defining an interior, the cover portion comprising an upper wall including an inwardly facing surface, the inwardly facing surface including an inner arcuate and concave surface facing towards the base when assembled; and a cushion comprising a mounting structure including a pair of spaced apart end members attached to the cover portion and a center member having an arcuate surface that contacts and follows the inner arcuate and concave surface of the upper wall but is not otherwise constrained by the cover portion, the spaced apart end members attached to the inwardly facing surface of the top cover, each end member having a plurality of elongate resilient wafer receiving structures extending from the respective end member toward the the center member, the plurality of elongate resilient wafer receiving structures being convex relative to the wafer received and the base, each wafer receiving structure having a pair of opposing ends and a pair of spaced apart lips intermediate the ends, the lips defining a channel for receiving an edge of one of the plurality of wafers, a plurality of V-shaped or U-shaped springs positioned between and connecting to each elongate resilient wafer receiving structure and to the center member, each V-shaped or U-shaped spring having a convex portion facing the base portion when assembled, whereby when the container is assembled and loaded with wafers the convex portion is engageable with a respective wafer and each elongate resilient wafer receiving structure is deflected inwardly toward the cover portion.