Abstract: A method of manufacturing a lead frame includes providing an electrically conductive layer having a plurality of holes at a top surface. The plurality of holes form a structure of leads and a die pad on the electrically conductive layer. The plurality of holes are filled with a non-conductive material. Next; an electrically conductive foil is attached on the top surface of the electrically conductive layer and the non-conductive epoxy material. The, the electrically conductive foil is etched to create a network of leads, die pad, bus lines, dam bars and tie lines, wherein the bus lines connect the leads to the dam bar, the dam bar is connected to the tie line and the tie line is connected to the die pad.

Abstract: A method of manufacturing a lead frame includes providing an electrically conductive layer having a plurality of holes at a top surface. The plurality of holes form a structure of leads and a die pad on the electrically conductive layer. The plurality of holes are filled with a non-conductive material. Next; an electrically conductive foil is attached on the top surface of the electrically conductive layer and the non-conductive epoxy material. The, the electrically conductive foil is etched to create a network of leads, die pad, bus lines, dam bars and tie lines, wherein the bus lines connect the leads to the dam bar, the dam bar is connected to the tie line and the tie line is connected to the die pad.

Abstract: A method of manufacturing a lead frame includes providing an electrically conductive layer having a plurality of holes at a top surface. The plurality of holes form a structure of leads and a die pad on the electrically conductive layer. The plurality of holes are filled with a non-conductive material. Next; an electrically conductive foil is attached on the top surface of the electrically conductive layer and the non-conductive epoxy material. Then, the electrically conductive foil is etched to create a network of leads, die pad, bus lines, dam bars and tie lines, wherein the bus lines connect the leads to the dam bar, the dam bar is connected to the tie line and the tie line is connected to the die pad.

Abstract: A semiconductor package with a semiconductor chip having under bump metallizations (UBMs) on a first surface and a substrate having open vias. The substrate is attached to the semiconductor chip with the UBMs in alignment with the open vias. An encapsulant surrounds the semiconductor chip and the substrate and a conductor fills the open vias to form external package connections.

Abstract: A stacked die semiconductor package that includes a substrate with a plurality of adhesive portions arranged in a manner to create at least one gap between the adhesive portions. The package also includes a first semiconductor chip having a non-active surface in contact with the adhesive portions, and an active surface being electrically connected to the substrate. In the package, a second semiconductor chip the non-active surface of the second semiconductor chip is attached to the non-active surface of the first semiconductor chip by a layer of adhesive therebetween. The active surface of the second semiconductor chip is electrically connected to the substrate. An encapsulant material covers the first and second semiconductor chips and their associated electrical connections. The encapsulating material fills the at least one gap between the plurality of adhesive portions and thereby encapsulates the second semiconductor chip and its associated electrical connection.

Abstract: A semiconductor package with a semiconductor chip having under bump metallizations (UBMs) on a first surface and a substrate having open vias. The substrate is attached to the semiconductor chip with the UBMs in alignment with the open vias. An encapsulant surrounds the semiconductor chip and the substrate and a conductor fills the open vias to form external package connections. A method of forming a semiconductor package having external package connections includes providing a semiconductor chip having under bump metallizations (UBMs) on a first surface; attaching the first surface of the semiconductor chip to a substrate, the UBMs of the semiconductor chip being in alignment with open vias formed in the substrate; encapsulating the semiconductor chip and the substrate; and filling with open vias with a conductor to form the external package connections.

Abstract: A method of manufacturing a lead frame includes providing an electrically conductive layer having a plurality of holes at a top surface. The plurality of holes form a structure of leads and a die pad on the electrically conductive layer. The plurality of holes are filled with a non-conductive material. Next; an electrically conductive foil is attached on the top surface of the electrically conductive layer and the non-conductive epoxy material. Then, the electrically conductive foil is etched to create a network of leads, die pad, bus lines, dam bars and tie lines, wherein the bus lines connect the leads to the dam bar, the dam bar is connected to the tie line and the tie line is connected to the die pad.

Abstract: A stacked die semiconductor package that includes a substrate with a plurality of adhesive portions arranged in a manner to create at least one gap between the adhesive portions. The package also includes a first semiconductor chip having a non-active surface in contact with the adhesive portions, and an active surface being electrically connected to the substrate. In the package, a second semiconductor chip the non-active surface of the second semiconductor chip is attached to the non-active surface of the first semiconductor chip by a layer of adhesive therebetween. The active surface of the second semiconductor chip is electrically connected to the substrate. An encapsulant material covers the first and second semiconductor chips and their associated electrical connections. The encapsulating material fills the at least one gap between the plurality of adhesive portions and thereby encapsulates the second semiconductor chip and its associated electrical connection.