Patent ID: 6270712
Filing Date: 2001-08-07
Classification: B29C,H01L

Abstract:
A multi-part molding die defining a closable cavity for simultaneously sealingly molding a semiconductor element in a package of a preselected size and shape and creating a marking having a predetermined content on a surface of the package, said molding die comprising:at least two integrally formed members, each said member defining inner walls forming an open-topped cavity portion of said closable cavity, and said closable cavity being sized to accommodate the semiconductor element within said preselected shaped package and adapted to receive a quantity of synthetic resin encapsulating the semiconductor element;a mask including means for forming a distinctive pattern representative of said content of said marking to be created on said surface of said package; anda single-piece jig adapted for releaseably holding said mask;wherein one of said members and said jig are adapted to mechanically interact directly with one another so as to removably retain said jig immediately outwardly adjacent to portions of said preselected package shape defined by said one of said members while said jig releaseably holds said mask at a predetermined position immediately inwardly adjacent to the preselected package shape defined by said one of said members.