摘要:
A method for fabricating a heat spreader is provided. Heat spreaders are formed and surrounded by a frame. The heat spreaders and frame are connected to one another by tie bars, the heat spreaders and tie bars having respective upper surfaces. At least portions of the upper surfaces of the tie bars are thinned to reduce the heights of the tie bars at least on a singulation line thereon. The frame is formed to support the heat spreader upper surfaces in an elevated position with respect thereto.
摘要:
A dual molded multi-chip package system is provided including forming an embedded integrated circuit package system having a first encapsulation partially covering a first integrated circuit die and a lead connected thereto, mounting a semiconductor device over the first encapsulation and connected to the lead, and forming a second encapsulation over the semiconductor device and the embedded integrated circuit package system.
摘要:
An integrated circuit package system includes: providing a flexible circuit substrate; mounting an integrated circuit or an integrated circuit package over the flexible circuit substrate and connected to the flexible circuit substrate with interconnects; and encapsulating the integrated circuit or integrated circuit package with a mounded encapsulation having a first level and a second level, the second level having the flexible circuit substrate folded thereover.
摘要:
A method for fabricating an encapsulant cavity integrated circuit package system includes: 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:
A cavity semiconductor package has a pre-molded leadframe construction. The leadframe is formed by molding around a die pad, and plural terminal lands. The leadframe has a hole for an acoustic port, such that the package can be soldered on a back side of a printed circuit board and have air access to a sensor die in the package from a front side of the printed circuit board via the acoustic port. The leadframe may also have a hollow or concave recess that defines an acoustic cavity in conjunction with the sensor die or printed circuit board.
摘要:
A stacked semiconductor package includes a substrate and a first semiconductor device on the substrate. An interposer is supported above the first semiconductor device opposite the substrate. The interposer is electrically connected to the substrate. A second semiconductor device is mounted on the interposer.
摘要:
A method of manufacturing a pre-molded leadframe for use in a semiconductor package includes providing a leadframe having a die pad and a plurality of leads. A first molding material is formed in the leadframe to expose the upper surface of the die pad and the upper surfaces of the plurality of leads.
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 optoelectronic sensor is attached to an optically transparent substrate, such as glass, and encapsulated to form an optoelectronic device. An optical assembly can be mounted opposite the optoelectronic sensor. Filters and refractive index matching materials may be included between the optoelectronic sensor and the optically transparent substrate.
摘要:
A semiconductor package is provided. A semiconductor package has a die pad and a plurality of bonding fingers. A spacer is attached to the die pad, and a large die is attached to the spacer. The large die is wire bonded to the plurality of bonding fingers using a plurality of bonding wires. The die pad, plurality of bonding fingers, spacer, large die, and bonding wires are encapsulated to form the semiconductor package. The semiconductor package can be either a single or dual row package, such as a QFN or BGA package.