MY137625A - Wafer container with secondary wafer restraint system - Google Patents

Abstract

WAFER CONTAINER WITH SECONDARY WAFER RESTRAINT SYSTEM A WAFER CONTAINER PROVIDING IMPROVED IAFER RESTRAINT DURING PHYSICAL SHOCK EVENTS. IN EMBODIMENTS OF THE INVENTION, A SECONDARY WAFER RESTRAINT STRUCTURE DEFINING A 5 PLURALITY OF NOTCHES IS INTERPOSED BETWEEN OPPOSING WAFER RESTRAINT MEMBERS OIL THE DOOR OF TILE CONTAINER. TILE NOTCHES MAY BE DEFINED BY ONE OI MORE CONVERGING EDGES OR SIN FICES INECTING AT A JUNCTION. THE JUNCTIONS ARE POSITIONED SO AS TO ALIGN WITH (HE WAFER RECEIVING PORTIONS OFEACH OPPOSING PAIR OF WAFER RESTRAINT MEMBER SO THAT WHEN ILIC DOOR IS FULLY SEALINGLY ENGAGED WITH TILE ENCLOSURE OF TILE CONTAINER, THE EDGE OF THE VLT'CT IS 10 CONTACTING THE JUNCTION. IN THIS POSITION, ANY VERTICAL MOVEMENT OFTHE WAFER DUE TO SHOCK IMPARIED TO THE CONTAINER CAUSES (LIE WAFER TO CONTACT THE CONVERGMG SURFACES OR EDGES, THEIEBV HUNTING SUCH TNOVCMEN@. 'FHE POSITIONING OF THE SECONDARV WATER RESTRAINT STRUCTURE BCT@CEII AND PROXIMULE OPPOSING FINGERS OF (LIE PRINIARY IKAL`ER RESTRAINT LIMITS DEFLECTION OFILIC WAFER BET%CEN SUPPORT POINTS AND FLICIEBY FURTHER INHIBITS THE IAFCR FIONI 15 "JUMPING" OUT OF1HE SUPPORTS AND CROSS-SLOTTING.