Patent ID: 6756690
Filing Date: 2004-06-29
Classification: B29C,Y10S

Abstract:
A semiconductor device package fabricated using a molding die set, wherein the molding die set comprises:a first molding die which comprises first cavities and a first parting surface, the first parting surface surrounding the first cavities to define the first cavities; a second molding die positioned outwardly relative to the first molding die and which comprises second cavities and a second parting surface arranged to face the first molding die, the second parting surface surrounding the second cavities to define the second cavities, the second parting surface being in contact with the first parting surface during a molding operation, the second parting surface being separated from the first parting surface after the molding operation; and an O-ring supported on the first molding die to surround the first cavities, the O-ring being engaged with the second molding die during the molding operation to seal the first and second cavities, the O-ring being positioned completely inwardly relative to the first parting surface both during and after the molding operation, thereby allowing the first parting surface to be cleaned after the molding operation without touching the O-ring.