摘要:
A semiconductor device includes a first substrate. A first semiconductor die is mounted to the first substrate. A bond wire electrically connects the first semiconductor die to the first substrate. A first encapsulant is deposited over the first semiconductor die, bond wire, and first substrate. The first encapsulant includes a penetrable, thermally conductive material. In one embodiment, the first encapsulant includes a viscous gel. A second substrate is mounted over a first surface of the first substrate. A second semiconductor die is mounted to the second substrate. The second semiconductor die is electrically connected to the first substrate. The first substrate is electrically connected to the second substrate. A second encapsulant is deposited over the first semiconductor die and second semiconductor die. An interconnect structure is formed on a second surface of the first substrate, opposite the first surface of the first substrate.
摘要:
A method of forming through-hole vias in a semiconductor wafer involves forming a semiconductor wafer having a plurality of die. A trench is formed between the semiconductor die. The trench extending partially through the semiconductor wafer. The portion of the semiconductor wafer below the trench along a backside of the wafer maintaining structural support for the wafer during the processing steps of forming a plurality of conductive vias between the die, and forming traces to electrically connect the conductive vias to contact pads on the die. The portion of the semiconductor wafer below the trench along the backside of the wafer is removed. The semiconductor wafer is singulated to separate the die. The singulation can be performed through the conductive vias to make half conductive vias or between the conductive vias to make full conductive vias. The die can be stacked and electrically connected through the conductive vias.
摘要:
A method of forming through-hole vias in a semiconductor wafer involves forming a semiconductor wafer having a plurality of die with contact pads disposed on a surface of each die. The semiconductor wafer has a saw street between each die. A trench is cut in the saw street without using support material to support the wafer. The trench extends only partially through the wafer. The uncut portion of the saw street below the trench along a backside of the wafer providing structural support for the wafer without support material during formation a plurality of conductive vias in the saw streets adjacent to the contact pads, and electrical connection of the conductive vias to the contact pads. The uncut portion of the saw street below the trench along the backside of the wafer portion is removed. The semiconductor wafer is singulated along the saw street to separate the die.
摘要:
A leadless package system includes: providing a chip carrier having indentations defining a pattern for a protrusion for external contact terminals; placing an external coating layer in the indentations in the chip carrier; layering a conductive layer on top of the external coating layer; depositing an internal coating layer on the conductive layer; patterning the internal coating layer and the conductive layer to define external contact terminals with a T-shape profile; connecting an integrated circuit die to the external contact terminals; encapsulating the integrated circuit die and external contact terminals; and separating the chip carrier from the external coating layer.
摘要:
A semiconductor device is made by mounting a first semiconductor die to a first substrate, forming a first encapsulant over the first semiconductor die, and forming a second encapsulant over the first encapsulant. The second encapsulant is penetrable, thermally conductive material. A second semiconductor die is mounted to the second substrate. A bond wire electrically connects the second semiconductor die to the second substrate. A passive circuit element is mounted to the second substrate. Leading with the second encapsulant, the first substrate is pressed onto the second substrate so that the second encapsulant completely covers the second semiconductor die, bond wire, and passive circuit element. The second encapsulant is then cured. A third encapsulant is formed over the first and second substrates. A shield can be disposed over the second semiconductor die with openings for the second encapsulant to flow through when pressed onto the second substrate.
摘要:
A method for manufacturing a multiple encapsulation integrated circuit package-in-package system includes: dicing a top integrated circuit wafer having a bottom encapsulant thereon to form a top integrated circuit die with the bottom encapsulant; positioning internal leadfingers adjacent and connected to a bottom integrated circuit die; pressing the bottom encapsulant on to the bottom integrated circuit die; connecting the top integrated circuit die to external leadfingers adjacent the internal leadfingers; and forming a top encapsulant over the top integrated circuit die.
摘要:
An integrated circuit package system provides a leadframe having a short lead finger, a long lead finger, and a support bar. A first die is placed in the leadframe. An adhesive is attached to the first die, the long lead finger, and the support bar. A second die is offset from the first die. The offset second die is attached to the adhesive. The first die is electrically connected to the short lead finger. The second die is electrically connected to at least the long lead finger or the short lead finger. At least portions of the leadframe, the first die, and the second die are encapsulated in an encapsulant.
摘要:
A method for manufacturing an integrated circuit package system includes: providing an integrated circuit; mounting a lead on the periphery of the integrated circuit; connecting the integrated circuit to the lead with an interconnect; and forming a conformable material by pressing the conformable material on the integrated circuit, the lead, and the interconnect.
摘要:
A semiconductor device has a plurality of similar sized semiconductor die each with a plurality of bond pads formed over a surface of the semiconductor die. An insulating layer is formed around a periphery of each semiconductor die. A plurality of conductive THVs is formed through the insulating layer. A plurality of conductive traces is formed over the surface of the semiconductor die electrically connected between the bond pads and conductive THVs. The semiconductor die are stacked to electrically connect the conductive THVs between adjacent semiconductor die. The stacked semiconductor die are mounted within an integrated cavity of a substrate or leadframe structure. An encapsulant is deposited over the substrate or leadframe structure and the semiconductor die. A thermally conductive lid is formed over a surface of the substrate or leadframe structure. The stacked semiconductor die are attached to the thermally conductive lid.
摘要:
A semiconductor die has a peripheral region around the die. An insulating layer is formed over the semiconductor die. A portion of the insulating layer and peripheral is removed to form a recess around the semiconductor die. A conductive layer is deposited over the insulating layer and recess. The conductive layer is electrically connected to contact pads on the semiconductor die and conforms to a step into the recess. A gap is created through the conductive layer and peripheral region around the semiconductor die. An insulating material is deposited in the gap. A portion of the insulating material is removed to form a through hole via (THV). A conductive material is deposited in the THV to form a conductive THV. The conductive THV is recessed with respect to a surface of the semiconductor die. The conductive THV is electrically connected to the conductive layer.