Abstract:
In a semiconductor device, a first semiconductor die is mounted with its active surface oriented to a temporary carrier. An encapsulant is deposited over the first semiconductor die and temporary carrier. The temporary carrier is removed to expose a first side of the encapsulant and active surface of the first semiconductor die. A masking layer is formed over the active surface of the first semiconductor die. A first interconnect structure is formed over the first side of the encapsulant. The masking layer blocks formation of the first interconnect structure over the active surface of the first semiconductor die. The masking layer is removed to form a cavity over the active surface of the first semiconductor die. A second semiconductor die is mounted in the cavity. The second semiconductor die is electrically connected to the active surface of the first semiconductor die with a short signal path.
Abstract:
A semiconductor device has a first semiconductor die mounted over a carrier. An interposer frame has an opening in the interposer frame and a plurality of conductive pillars formed over the interposer frame. The interposer is mounted over the carrier and first die with the conductive pillars disposed around the die. A cavity can be formed in the interposer frame to contain a portion of the first die. An encapsulant is deposited through the opening in the interposer frame over the carrier and first die. Alternatively, the encapsulant is deposited over the carrier and first die and the interposer frame is pressed against the encapsulant. Excess encapsulant exits through the opening in the interposer frame. The carrier is removed. An interconnect structure is formed over the encapsulant and first die. A second semiconductor die can be mounted over the first die or over the interposer frame.
Abstract:
A semiconductor device has a TSV semiconductor wafer with a cavity formed in a first surface of the wafer. A second cavity can be formed in a second surface of the wafer. A plurality of semiconductor die is mounted within the cavities. The semiconductor die can be mounted side-by-side and/or stacked within the cavity. Conductive TSV can be formed through the die. An encapsulant is deposited within the cavity over the die. A CTE of the die is similar to a CTE of the encapsulant. A first interconnect structure is formed over a first surface of the encapsulant and wafer. A second interconnect structure is formed over a second surface of the encapsulant and wafer. The first and second interconnect structure are electrically connected to the TSV wafer. A second semiconductor die can be mounted over the first interconnect structure with encapsulant deposited over the second die.
Abstract:
A semiconductor device has a plurality of conductive vias formed partially through a substrate. A conductive layer is formed over the substrate and electrically connected to the conductive vias. A semiconductor die is mounted over the substrate. An encapsulant is deposited over the semiconductor die and substrate. A trench is formed through the encapsulant around the semiconductor die. A shielding layer is formed over the encapsulant. The trench is formed partially through the substrate and the shielding layer is formed in the trench partially through the substrate. An insulating layer can be formed in the trench prior to forming the shielding layer. A portion of the substrate is removed to expose the conductive vias. An interconnect structure is formed over the substrate opposite the semiconductor die. The interconnect structure is electrically connected to the conductive vias. The shielding layer is electrically connected to the interconnect structure.
Abstract:
A semiconductor device is made by providing a temporary carrier and providing a semiconductor die having a plurality of bumps formed on its active surface. An adhesive material is deposited as a plurality of islands or bumps on the carrier or active surface of the semiconductor die. The adhesive layer can also be deposited as a continuous layer over the carrier or active surface of the die. The semiconductor die is mounted to the carrier. An encapsulant is deposited over the die and carrier. The adhesive material holds the semiconductor die in place to the carrier while depositing the encapsulant. An interconnect structure is formed over the active surface of the die. The interconnect structure is electrically connected to the bumps of the semiconductor die. The adhesive material can be removed prior to forming the interconnect structure, or the interconnect structure can be formed over the adhesive material.
Abstract:
A semiconductor device has a first semiconductor die mounted over a carrier. An interposer frame has an opening in the interposer frame and a plurality of conductive pillars formed over the interposer frame. The interposer is mounted over the carrier and first die with the conductive pillars disposed around the die. A cavity can be formed in the interposer frame to contain a portion of the first die. An encapsulant is deposited through the opening in the interposer frame over the carrier and first die. Alternatively, the encapsulant is deposited over the carrier and first die and the interposer frame is pressed against the encapsulant. Excess encapsulant exits through the opening in the interposer frame. The carrier is removed. An interconnect structure is formed over the encapsulant and first die. A second semiconductor die can be mounted over the first die or over the interposer frame.
Abstract:
A semiconductor device has a first thermally conductive layer formed over a first surface of a semiconductor die. A second surface of the semiconductor die is mounted to a sacrificial carrier. An encapsulant is deposited over the first thermally conductive layer and sacrificial carrier. The encapsulant is planarized to expose the first thermally conductive layer. A first insulating layer is formed over the second surface of the semiconductor die and a first surface of the encapsulant. A portion of the first insulating layer over the second surface of the semiconductor die is removed. A second thermally conductive layer is formed over the second surface of the semiconductor die within the removed portion of the first insulating layer. An electrically conductive layer is formed within the insulating layer around the second thermally conductive layer. A heat sink can be mounted over the first thermally conductive layer.
Abstract:
A semiconductor device comprises a first semiconductor die. An encapsulant is disposed around the first semiconductor die. A first stepped interconnect structure is disposed over a first surface of the encapsulant. An opening is formed in the first stepped interconnect structure. The opening in the first stepped interconnect structure is over the first semiconductor die. A second semiconductor die is disposed in the opening of the first stepped interconnect structure. A second stepped interconnect structure is disposed over the first stepped interconnect structure. A conductive pillar is formed through the encapsulant.
Abstract:
A semiconductor wafer has a plurality of semiconductor die separated by a saw street. The wafer is mounted to dicing tape. The wafer is singulated through the saw street to expose side surfaces of the semiconductor die. An ESD protection layer is formed over the semiconductor die and around the exposed side surfaces of the semiconductor die. The ESD protection layer can be a metal layer, encapsulant film, conductive polymer, conductive ink, or insulating layer covered by a metal layer. The ESD protection layer is singulated between the semiconductor die. The semiconductor die covered by the ESD protection layer are mounted to a temporary carrier. An encapsulant is deposited over the ESD protection layer covering the semiconductor die. The carrier is removed. An interconnect structure is formed over the semiconductor die and encapsulant. The ESD protection layer is electrically connected to the interconnect structure to provide an ESD path.
Abstract:
A semiconductor device has a base substrate with recesses formed in a first surface of the base substrate. A first conductive layer is formed over the first surface and into the recesses. A second conductive layer is formed over a second surface of the base substrate. A first semiconductor die is mounted to the base substrate with bumps partially disposed within the recesses over the first conductive layer. A second semiconductor die is mounted to the first semiconductor die. Bond wires are formed between the second semiconductor die and the first conductive layer over the first surface of the base substrate. An encapsulant is deposited over the first and second semiconductor die and base substrate. A portion of the base substrate is removed from the second surface between the second conductive layer down to the recesses to form electrically isolated base leads for the bumps and bond wires.