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: An integrated circuit package having a die pad with a first face and a second face, a plurality of inner leads, and a plurality of sides between the first face and the second face. The plurality of inner leads is disposed substantially co-planer with and substantially around the die pad. The package also comprises a plurality of outer leads disposed substantially co-planar with and substantially around the plurality of inner leads and the die pad, so that the sides of each of the plurality of outer leads are offset from the sides of each of the plurality of inner leads. A first adhesive layer disposed on the first face of the die pad and a second adhesive layer disposed on the first faces of each of the plurality of inner leads. An IC chip is coupled to the first face of the die pad through the first adhesive layer and to the plurality of inner leads through the second adhesive layer. The package further comprises wires linking the inner leads and outer leads to the IC chip.

Abstract: This invention includes a heat sink structure for use in a semiconductor package that includes a ring structure with down sets and a heat sink connected to the ring structure. The down sets can be slanted or V-shaped. The invention also includes a method of manufacturing a semiconductor package that includes inserting a substrate with an attached semiconductor chip in a first mold portion, placing a heat sink structure on top of a portion of the substrate, placing a mold release film onto a second mold portion, clamping a second mold portion onto a portion of the heat sink structure, injecting an encapsulant into a mold cavity, wherein the encapsulant surrounds portions of the substrate, semiconductor chip and heat sink structure, curing the encapsulant, whereby the heat sink structure adheres to the encapsulant and singulating the encapsulated assembly to form a semiconductor package.

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 chip scale integrated circuit package includes an integrated circuit chip which has a first face and a second face. A plurality of pillar bumps are formed on the first face of the integrated circuit chip. An encapsulant material encapsulates the sides and the first face of the integrated circuit chip, and the pillar bumps. Upper ends of the pillar bumps remain free from encapsulant material and a substantially planar surface is formed by an upper surface of the encapsulant material and the upper ends of the pillar bumps. A plurality of solder balls are mounted on the substantially planar surface in locations corresponding to the upper ends of the pillar bumps.

Abstract: A method for of manufacturing integrated circuit packages and a multi-chip integrated circuit package are disclosed. According to the method, a first die is attached onto a first side of a set of leads of a leadframe, and an adhesive is applied onto the set of leads at a second side opposite to the first side. A second die is attached onto the adhesive. The adhesive fills into the gaps defined by the set of leads. The adhesive is thereafter cured. In a multi-chip integrated circuit package made according to the method, the adhesive attaching the second die fills the gaps between the leads so that to avoid formation of internal cavities of the package.

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 chip package and method of making the same. A first chip unit includes a first substrate and a first IC chip electrically connected to the first substrate. A second chip unit includes a second substrate and a second IC chip electronically connected to the second substrate. An adhesive material is provided on a surface of the first IC chip and the second chip unit is mounted onto the surface of the first chip unit including the adhesive material so that at least a portion of the second structure is encapsulated by the adhesive material, thereby providing some encapsulation in the same step as mounting. The first chip unit and the second chip unit may be separated by a spacer which may also provide an electrical connection.

Abstract: A semiconductor package that includes a substrate having first and second major surfaces is presented. The package includes a plurality of landing pads and a semiconductor die disposed on the first major surface. A molded cap is disposed on the first surface to encapsulate the die and substrate. The landing pads are covered when the cap is molded. Package interconnects are coupled to the landing pads. The package interconnects are exposed by the cap to facilitate package stacking.

Abstract: A chip scale integrated circuit package includes an integrated circuit chip which has a first face and a second face. A plurality of pillar bumps are formed on the first face of the integrated circuit chip. An encapsulant material encapsulates the sides and the first face of the integrated circuit chip, and the pillar bumps. Upper ends of the pillar bumps remain free form encapsulant material and a substantially planar surface is formed by an upper surface of the encapsulant material and the upper ends of the pillar bumps. A plurality of solder balls are mounted on the substantially planar surface in locations corresponding to the upper ends of the pillar bumps.

Abstract: A semiconductor package includes a plurality of first leads, each with a top outer portion removed from the lead and an outer end, and a plurality of second leads, each with a bottom outer portion removed from the lead and an outer end. The first and second leads alternate with each other along an edge of the package. Also, the outer ends of the first leads form a first row along the edge of the package and the outer ends of the second leads form a second row along the edge of the package. In one embodiment, the first and second rows are parallel to each other and an encapsulant covers at least a portion of the first and second leads.

Abstract: A method of producing a chip scale package is disclosed. The method includes dicing a wafer into a plurality of chip arrays, each array including two or more integrated circuit chips. The method further includes mounting each array on a substrate and dicing each array, attached to the substrate, into individual chip scale packages, each individual chip scale package including only one integrated circuit chip.

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 semiconductor chip package and method of making the same. A first chip unit includes a first substrate and a first IC chip electrically connected to the first substrate. A second chip unit includes a second substrate and a second IC chip electronically connected to the second substrate. An adhesive material is provided on a surface of the first IC chip and the second chip unit is mounted onto the surface of the first chip unit including the adhesive material so that at least a portion of the second structure is encapsulated by the adhesive material, thereby providing some encapsulation in the same step as mounting. The first chip unit and the second chip unit may be separated by a spacer which may also provide an electrical connection.

Abstract: A semiconductor package includes a plurality of first leads, each with a top outer portion removed from the lead and an outer end, and a plurality of second leads, each with a bottom outer portion removed from the lead and an outer end. The first and second leads alternate with each other along an edge of the package. Also, the outer ends of the first leads form a first row along the edge of the package and the outer ends of the second leads form a second row along the edge of the package. In one embodiment, the first and second rows are parallel to each other and an encapsulant covers at least a portion of the first and second leads.

Abstract: A method for of manufacturing integrated circuit packages and a multi-chip integrated circuit package are disclosed. According to the method, a first die is attached onto a first side of a set of leads of a leadframe, and an adhesive is applied onto the set of leads at a second side opposite to the first side. A second die is attached onto the adhesive. The adhesive fills into the gaps defined by the set of leads. The adhesive is thereafter cured. In a multi-chip integrated circuit package made according to the method, the adhesive attaching the second die fills the gaps between the leads so that to avoid formation of internal cavities of the package.

Abstract: A semiconductor package includes a plurality of first leads, each with a top outer portion removed from the lead and an outer end, and a plurality of second leads, each with a bottom outer portion removed from the lead and an outer end. The first and second leads alternate with each other along an edge of the package. Also, the outer ends of the first leads form a first row along the edge of the package and the outer ends of the second leads form a second row along the edge of the package. In one embodiment, the first and second rows are parallel to each other and an encapsulant covers at least a portion of the first and second leads.

Abstract: An integrated circuit package having a die pad with a first face and a second face, a plurality of inner leads, and a plurality of sides between the first face and the second face. The plurality of inner leads is disposed substantially co-planer with and substantially around the die pad. The package also comprises a plurality of outer leads disposed substantially co-planar with and substantially around the plurality of inner leads and the die pad, so that the sides of each of the plurality of outer leads are offset from the sides of each of the plurality of inner leads. A first adhesive layer disposed on the first face of the die pad and a second adhesive layer disposed on the first faces of each of the plurality of inner leads. An IC chip is coupled to the first face of the die pad through the first adhesive layer and to the plurality of inner leads through the second adhesive layer. The package further comprises wires linking the inner leads and outer leads to the IC chip.