摘要:
A stackable semiconductor package and method includes providing a first semiconductor package having a first plurality of lower leads and a first plurality of upper leads. A second semiconductor package having a second plurality of lower leads is provided. The second plurality of lower leads is attached to the first plurality of upper leads to form a stack of semiconductor packages.
摘要:
A multi-leadframe semiconductor package and method of manufacture includes a first leadframe having a die pad and a plurality of contact leads around the periphery of the die pad. A die is attached to the die pad and electrically connected to the plurality of contact leads. A heat spreader leadframe having a heat spreader and a plurality of terminal leads around the periphery of the heat spreader is provided. The die pad is attached to the heat spreader, and the plurality of contact leads is attached to the plurality of terminal leads.
摘要:
A leadframe design (and method of forming the leadframe design), comprising: an inner die pad structure lying in a first plane; and an outer die pad structure supported by outer tie bars and connected to the inner die pad by inner tie bars. The outer die pad structure lying in a second plane spaced apart from the inner die pad structure first plane. An outer package surrounds at least the inner die pad structure and the inner tie bars. The outer die pad structure being supported by the outer tie bars. The outer package having outer walls. Lead fingers extend through the outer package outer walls and include respective inner portions extending into the outer package proximate the inner and outer die pad structures. The inner portions of the lead fingers lie in a third plane, wherein at least one of the inner die pad structure first plane and the outer die pad structure second plane lie outside of the lead finger inner portions third plane and wherein a first chip is affixed to the inner die pad structure and a second chip is affixed to the outer die pad structure.
摘要:
In accordance with the objectives of the invention a new method is provided to position and secure a heat sink over the surface of a semiconductor device mounting support, the latter typically being referred to as a semiconductor substrate. A plurality of recesses is created in the surface of the substrate over which the heat sink is to be mounted. The heat sink is (conventionally and not part of the invention) provided with dimples that form the interface between the heat sink and the underlying substrate. The dimples of the heat sink are aligned with and inserted into the recesses that have been created by the invention in the underlying substrate for this purpose, firmly securing the heat sink in position with respect to the substrate.
摘要:
An integrated circuit packaging system includes: an integrated circuit device; a conductive post adjacent the integrated circuit device, the conductive post with a contact surface having characteristics of a shaped platform removed; and an encapsulant around the conductive post and the integrated circuit device with the conductive post extending through the encapsulant and each end of the conductive post exposed from the encapsulant.
摘要:
A semiconductor device has a stress relief buffer mounted to a temporary substrate in locations designated for bump formation. The stress relief buffer can be a multi-layer composite material such as a first compliant layer, a silicon layer formed over the first compliant layer, and a second compliant layer formed over the silicon layer. A semiconductor die is also mounted to the temporary substrate. The stress relief buffer can be thinner than the semiconductor die. An encapsulant is deposited between the semiconductor die and stress relief buffer. The temporary substrate is removed. An interconnect structure is formed over the semiconductor die, encapsulant, and stress relief buffer. The interconnect structure is electrically connected to the semiconductor die. A stiffener layer can be formed over the stress relief buffer and encapsulant. A circuit layer containing active devices, passive devices, conductive layers, and dielectric layers can be formed within the stress relief buffer.
摘要:
An embedded semiconductor die package is made by mounting a frame carrier to a temporary carrier with an adhesive. The frame carrier includes die mounting sites each including a leadframe interconnect structure around a cavity. A semiconductor die is disposed in each cavity. An encapsulant is deposited in the cavity over the die. A package interconnect structure is formed over the leadframe interconnect structure and encapsulant. The package interconnect structure and leadframe interconnect structure are electrically connected to the die. The frame carrier is singulated into individual embedded die packages. The semiconductor die can be vertically stacked or placed side-by-side within the cavity. The embedded die packages can be stacked and electrically interconnected through the leadframe interconnect structure. A semiconductor device can be mounted to the embedded die package and electrically connected to the die through the leadframe interconnect structure.
摘要:
A semiconductor device has a semiconductor die and conductive layer formed over a surface of the semiconductor die. A first channel can be formed in the semiconductor die. An encapsulant is deposited over the semiconductor die. A second channel can be formed in the encapsulant. A first insulating layer is formed over the semiconductor die and first conductive layer and into the first channel. The first insulating layer extends into the second channel. The first insulating layer has characteristics of tensile strength greater than 150 MPa, elongation between 35-150%, and thickness of 2-30 micrometers. A second insulating layer can be formed over the semiconductor die prior to forming the first insulating layer. An interconnect structure is formed over the semiconductor die and encapsulant. The interconnect structure is electrically connected to the first conductive layer. The first insulating layer provides stress relief during formation of the interconnect structure.
摘要:
A semiconductor package includes a post carrier having a base plate and plurality of conductive posts. A photosensitive encapsulant is deposited over the base plate of the post carrier and around the conductive posts. The photosensitive encapsulant is etched to expose a portion of the base plate of the post carrier. A semiconductor die is mounted to the base plate of the post carrier within the etched portions of the photosensitive encapsulant. A second encapsulant is deposited over the semiconductor die. A first circuit build-up layer is formed over the second encapsulant. The first circuit build-up layer is electrically connected to the conductive posts. The base plate of the post carrier is removed and a second circuit build-up layer is formed over the semiconductor die and the photosensitive encapsulant opposite the first circuit build-up layer. The second circuit build-up layer is electrically connected to the conductive posts.
摘要:
A method for fabricating an encapsulant cavity integrated circuit package system includes: providing an interposer; forming a first integrated circuit package with an inverted bottom terminal having an encapsulant cavity and the interposer; and attaching a component on the interposer in the encapsulant cavity.