Patent ID: 6696752
Filing Date: 2004-02-24
Classification: H01L

Abstract:
An encapsulated semiconductor device with flash-proof structure comprising:a lead frame including a top surface and a corresponding bottom surface, wherein a flash-proof body is formed on a predetermined section of said lead frame and composed of a dam bar formed on said top surface of said lead frame and a tape adhered to said bottom surface of said lead frame, with said dam bar being attached to both said lead frame and said tape, and wherein a die bonding area formed on said top surface of said lead frame is positioned inside said dam bar, and a wire bonding area formed on said top surface of said lead frame is positioned outside said die bonding area and inside said dam bar, such that said tape covers an area on said bottom surface of said lead frame corresponding in position to said wire bonding area and said die bonding area; a semiconductor chip adhered on said die bonding area of said lead frame; a plurality of conductive connecting elements for electrically connecting said semiconductor chip to said wire bonding area on said lead frame; an encapsulation body having a core-hollowed portion integrated with said lead frame, wherein said core-hollowed portion is defined and bordered by said dam bar and said tape to allow said semiconductor chip and said conductive connecting elements to be received and exposed within said core-hollowed portion of said encapsulation body; and a lid adhered to said encapsulation body to hermetically seal said core-hollowed portion of said encapsulation body, wherein said semiconductor chip and said conductive connecting elements are air-tightly sealed within said core-hollowed portion.