摘要:
An integrated circuit package system is provided including forming a leadframe structure having a encapsulant space provided predominantly inside the leadframe structure and attaching a die to the leadframe structure in the encapsulant space inside the leadframe structure. The system further includes electrically connecting the die to the leadframe structure and injecting encapsulant into the encapsulant space to form the integrated circuit package system.
摘要:
A system is provided for an integrated circuit package including a leadframe having a lead finger. A groove is formed in a lead finger for a conductive bonding agent and a passive device is placed in the groove to be held by the conductive bonding agent.
摘要:
Stacked package assemblies include first and second stacked packages, each having at least one die affixed to, and electrically interconnected with, a die attach side of the package substrate. One package is inverted in relation to the other; that is, the die attach sides of the package substrates face one another, and the “land” sides of the substrates face away from one another. Z-interconnection of the packages is by wire bonds connecting the first and second package substrates. The assembly is encapsulated in such a way that both the second package substrate (one side of the assembly) and a portion of the first package substrate (on the opposite side of the assembly) are exposed, so that second level interconnection and interconnection with additional components may be made. In some embodiments the first package is a chip scale package, and the second package is a land grid array package. Also, methods for making such stacked packages assemblies include steps of providing a cavity molded LGA package, preferably tested as “good”; applying an adhesive onto the surface of the mold cap of the LGA package; providing a singulated CSP; inverting the CSP and placing the inverted CSP onto the adhesive on the LGA mold cap; curing the adhesive; performing a plasma clean; wire bonding to form z-interconnection between the die attach side of the LGA and the land side of the CSP; performing a plasma clean; performing a molding operation to enclose the die attach side of the LGA, the z-interconnection wire bonds and wire loops, the edges of the CSP, and the marginal area on the land side of the CSP, leaving exposed the land side of the LGA substrate and an area of the land side of the CSP substrate located within a marginal area; attaching second level interconnect solder balls to sites on exposed area of the CSP substrate; and (where the LGA package was provided in a strip or array) saw singulating to complete the assembly. In some embodiments one or more additional components are stacked over the land side of the LGA substrate.
摘要:
An embodiment of the present invention allows mold compound to flow underneath a substrate where the mold compound will remain in place until the process of mold formation is completed. The mold compound of the package will penetrate all available cavities where the mold compound will remain in place and harden. After hardening, the mold compound surrounding a mold anchor will support an anchored area.
摘要:
A method of manufacturing a semiconductor package includes providing a substrate having a plurality of contacts with solder bump contact areas that are unmasked. A plurality of underfill bumps is formed on the plurality of contacts selectively in the solder bump contact areas. A die having a plurality of solder bumps is positioned on the substrate so the plurality of solder bumps is substantially vertically aligned with the plurality of underfill bumps. The plurality of solder bumps is pressed into the plurality of underfill bumps until the plurality of solder bumps contacts the plurality of contacts. The plurality of solder bumps is reflowed. The die, the plurality of solder bumps, and the plurality of contacts are encapsulated to expose a lower surface of the plurality of contacts.
摘要:
A method for fabricating a large die package with a leadframe having leads and a paddle is provided. An interposer is attached onto the leadframe with the interposer extending over at least a portion of the paddle and at least a portion of the leads of the leadframe. The interposer is insulated from the leads. A die is attached to the interposer.
摘要:
Semiconductor assemblies include a first package, each having at least one die affixed to, and electrically interconnected with, a die attach side of the first package substrate, and a second substrate having a first side and a second (“land”) side, mounted over the molding of the first package with the first side of the second substrate facing the die attach side of the first package substrate. Accordingly, the die attach sides of the first substrate and the first side of the second substrate face one another, and the “land” sides of the substrates face away from one another. Z-interconnection of the package and the substrate is by wire bonds connecting the first and second substrates. The assembly is encapsulated in such a way that both the land side of the second substrate (one side of the assembly) and a portion of the land side of the first package substrate (on the opposite side of the assembly) are exposed, so that second level interconnection and interconnection with additional components may be made. In some embodiments the first package is a chip scale package. Also, methods for making such stacked packages assemblies include steps of providing singulated CSP; applying an adhesive onto the surface of the molding of the CSP; providing a second substrate having first and second sides; inverting the CSP and placing the inverted CSP onto the first side of the second substrate such that the adhesive contacts the first side of the second substrate; curing the adhesive; performing a plasma clean; wire bonding to form z-interconnection between the first side of the second substrate and the land side of the CSP; performing a plasma clean; performing a molding operation to enclose the first side of the second substrate, the z-interconnection wire bonds and wire loops, the edges of the CSP, and the marginal area on the land side of the CSP, leaving exposed the land side of the second substrate and an area of the land side of the CSP substrate located within a marginal area; attaching second level interconnect solder balls to sites on exposed area of the CSP substrate; and (where the second substrate was provided in a strip or array) saw singulating to complete the assembly. In some embodiments one or more additional components are stacked over the land side of the second substrate.
摘要:
A semiconductor package and method for fabricating the same is disclosed. In one embodiment, the semiconductor package includes a circuit board, at least two semiconductor chips, electric connection means, an encapsulant, and a plurality of conductive balls. The circuit board has a resin layer and a circuit pattern. The resin layer is provided with an opening at its center portion. The circuit pattern is formed on at least one of upper and lower surfaces of the resin layer and includes one or more bond fingers and ball lands exposed to the outside. The semiconductor chips have a plurality of input/output pads on an active surface thereof. The semiconductor chips are stacked at a position of the opening of the circuit board, with at least one of the chips being within the opening. Alternatively, both chips are in the opening. The electric connection means connects the input/output pads of the semiconductor chips to the bond fingers of the circuit board. The encapsulant surrounds the semiconductor chips so as to protect the chips from the external environment. The conductive balls are fusion-bonded on the ball lands of the circuit board.
摘要:
An encapsulant cavity integrated circuit package system including forming a first integrated circuit package with an inverted bottom terminal having an encapsulant cavity and an interposer, and attaching a component on the interposer in the encapsulant cavity.
摘要:
An integrated circuit die is provided having a body portion having a singulation side and a pedestal portion extending from the body portion and having a singulation side coplanar with the singulation side of the body portion.