摘要:
Improved techniques for stacking integrated circuit dies within an integrated circuit package are disclosed. These improved techniques allow greater stacking density of integrated circuit dies within an integrated circuit package. Additionally, the improved stacking techniques permit conventional bonding techniques for electrical connection of the various integrated circuit dies to each other or to a substrate. These improved approaches are particularly useful for stacking same size (and often same function) integrated circuit dies within integrated circuit packages. One example of such an integrated circuit package is a non-volatile memory integrated circuit package that contains multiple, like-sized memory storage integrated circuit dies arranged in a stack.
摘要:
A system-in-a-package based flash memory card including an integrated circuit package occupying a small overall area within the card and cut to conform to the shape of a lid for the card. An integrated circuit may be cut from a panel into a shape that fits within and conforms to the shape of lids for a finished memory card, such as for example an SD Card. The integrated circuit package may be a system-in-a-package, a multi-chip module, or other arrangement where a complete electronic system is formed in a single package.
摘要:
A low profile semiconductor package is disclosed including at least first and second stacked semiconductor die mounted to a substrate. The first and second semiconductor die are separated by a low profile intermediate adhesive layer in which the wire bond loops from the first semiconductor die are embedded. After the intermediate layer is applied, the second semiconductor die may be stacked on top of the intermediate layer. A dielectric layer may be formed on a back surface of the second semiconductor die. As the back side of the second semiconductor die is an electrical insulator, the intermediate layer need not space the wire bond loops from the second semiconductor die as in the prior art, and the apex of bond wires may come into contact with the dielectric layer. The intermediate layer may thus be made thinner in comparison to conventional stacked semiconductor die configurations.
摘要:
A dummy circuit pattern is disclosed on a surface of a substrate for a semiconductor package, the dummy circuit pattern including straight line segments having a length controlled so as not to generate stresses within the line segments above a desired stress. The dummy circuit pattern may be formed of lines, or contiguous or spaced polygons, such as hexagons. Portions of the dummy circuit pattern may also be formed with an orientation, size and position that are randomly selected.
摘要:
A system-in-a-package based flash memory card including an integrated circuit package occupying a small overall area within the card and cut to conform to the shape of a lid for the card. An integrated circuit may be cut from a panel into a shape that fits within and conforms to the shape of lids for a finished memory card, such as for example an SD Card. The integrated circuit package may be a system-in-a-package, a multi-chip module, or other arrangement where a complete electronic system is formed in a single package.
摘要:
A system-in-a-package based flash memory card including an integrated circuit package occupying a small overall area within the card and cut to conform to the shape of a lid for the card. An integrated circuit may be cut from a panel into a shape that fits within and conforms to the shape of lids for a finished memory card, such as for example an SD Card. The integrated circuit package may be a system-in-a-package, a multi-chip module, or other arrangement where a complete electronic system is formed in a single package.
摘要:
A semiconductor package having a low profile is disclosed. In embodiments, a surface mounted component may be mounted directly to the core of the semiconductor package substrate, so that there is no conductive layer, plating layers or solder paste between the component and the substrate core. The surface mounted component may be any type of component which may be surface mounted on a substrate according to an SMT process, including for example passive components and various packaged semiconductors.
摘要:
A method of under-filling semiconductor die in a die stack and a semiconductor device formed thereby are disclosed. Once the semiconductor die are formed, they may be stacked and interconnected. The interconnection may leave a small space between semiconductor die in the die stack. This space is advantageously completely filled using a vapor deposition process where a coating is deposited as a vapor which flows over all surfaces of the die stack, including into the spaces between the die in the stack. The vapor then deposits on the surfaces between and around the die and forms a film which completely fills the spaces between the die in the die stack. The material used in the vapor deposition under-fill process may for example be a member of the parylene family of polymers, and in embodiments, may be parylene-N.
摘要:
A low profile semiconductor package is disclosed including at least first and second stacked semiconductor die mounted to a substrate. The first and/or second semiconductor die may be fabricated with a plurality of redistribution pads formed over and electrically coupled to a plurality of bond pads. After the semiconductor die are formed and diced from the wafer, the die may be mounted to the substrate using a low profile reverse wire bond according to the present invention. In particular, a wedge bond may be formed between the wire and the redistribution pad without having to use a second wire bond ball on the die bond pad as in conventional reverse ball bonding processes.
摘要:
Methods for forming leadframe-based semiconductor packages having curvilinear shapes are disclosed. The leadframes may each include one or more curvilinear slots corresponding to curvilinear edges in the finished and singulated semiconductor package. After encapsulation, the integrated circuit packages on the panel may be singulated by cutting the integrated circuits from the leadframe panel into a plurality of individual integrated circuit packages. The slots in the leadframe advantageously allow each leadframe to be singulated using a saw blade making only straight cuts.