Innovative end caps for ic tray

Abstract

An innovative end cap for IC trays includes a bottom and side walls. The side walls extend upwardly from the bottom and form a tray-accommodating space. The innovative end cap includes a plurality of buffering ribs and buffering grooves on its surfaces. The buffering ribs and buffering grooves arranged on the end cap can fully absorb, disperse and transfer the impact energy generated during testing, storage, collision and shock of the trays which accommodate the precision semiconductor components therein, and increase impact strength and anti-dropping damage ability of the end cap. Therefore, the innovative end cap with the buffering ribs and buffering grooves can not only protect the trays and extend the service lifetime of the trays, but also give better protection to the precision semiconductor components such as Chips, IC etc in the trays.

What is claimed is: 
     
         1 . An innovative end cap for IC trays comprising a bottom and side walls, the side walls extending upwardly from the bottom and forming a tray-accommodating space like an uncover box, the innovative end cap comprising a plurality of buffering ribs on touchable surfaces thereof. 
     
     
         2 . The innovative end cap for IC trays as described in  claim 1 , wherein the plurality of buffering ribs comprise a plurality of primary buffering ribs, secondary buffering ribs and tertiary buffering ribs, and wherein the plurality of primary buffering ribs is protruded from an outer surface of the corresponding side wall. 
     
     
         3 . The innovative end cap for IC trays as described in  claim 2 , wherein lower edges of the plurality of primary buffering ribs are protruded out of an outer surface of the bottom. 
     
     
         4 . The innovative end cap for IC trays as described in  claim 1 , wherein the bottom has bottom ribs on an outer surface thereof, the bottom ribs connect bottom edges of the plurality of primary buffering ribs. 
     
     
         5 . The innovative end cap for IC trays as described in  claims 2 , wherein the innovative end cap has a polygonal cross-section, and the secondary buffering ribs are formed on the outer sides of junctions of the side walls. 
     
     
         6 . The innovative end cap for IC trays as described in  claim 2 , wherein the tertiary buffering ribs are protruded from an inner surface and the two ends of the bottom. 
     
     
         7 . The innovative end cap for IC trays as described in  claim 1 , wherein the end cap defines a plurality of buffering grooves in an inner surfaces thereof. 
     
     
         8 . The innovative end cap for IC trays as described in  claim 7 , wherein the innovative end cap has a polygonal cross-section, and the plurality of buffering grooves is defined at the junctions of the side walls and dented from the inner surface of the side walls. 
     
     
         9 . The innovative end cap for IC trays as described in  claim 7 , wherein the plurality of buffering grooves is defined in the bottom and dented from the inner surface of the bottom. 
     
     
         10 . The innovative end cap for IC trays as described in  claim 7 , wherein the plurality of buffering grooves is defined in the side walls and dented from the inner surfaces of the side walls. 
     
     
         11 . The innovative end cap for IC trays as described in  claim 1 , wherein the innovative end cap has a polygonal cross-section, and the plurality of buffering ribs comprise several secondary buffering ribs formed on the outer sides of junctions of the side walls.