Patent ID: 9478450
Filing Date: 2016-10-25
CPC Classification: H01L

Claim Text:
1. A wafer container for holding a spaced stack of wafers, the stack having an axis extending through the centers of the wafers, each wafer having a circular peripheral edge and a thickness, the container comprising: a base portion for receiving the stack of wafers, the base portion having a plurality of walls defining an open interior and four of said walls defining an opening perimeter; a cover portion that cooperatively connects with the base portion to form a closed interior for containing the stack of wafers, the cover portion having an inside surface with attachment structure; a wafer cushion attached to the inside surface of the cover portion at the attachment structure, the wafer cushion having a length and a width, the length extending in a direction parallel to the axis of the stack of wafers, the wafer cushion comprising a pair of opposing side support structures and a central row of cantilevered wafer engaging finger portions extending from the opposing side support structures, each wafer engaging finger portion comprising a pair of legs extending from one of the two side support structures, the pair of legs extending to a mid-portion of the wafer engaging finger portion, the two legs joining at the mid-portion, the wafer engaging finger portion having a distal portion comprising a wafer engaging pad; and wherein each pair of legs of each wafer engaging finger portion defines a width and said width is a maximum width of the respective wafer engaging finger.