A mounting structure includes a bonding material (106) that bonds second electrodes (104) of a circuit board (105) and bumps (103) of a semiconductor package (101), the bonding material (106) being surrounded by a first reinforcing resin (107). Moreover, a portion between the outer periphery of the semiconductor package (101) and the circuit board (105) is covered with a second reinforcing resin (108). Even if the bonding material (106) is a solder material having a lower melting point than a conventional bonding material, high drop resistance is obtained.

A mounting structure includes a bonding material (106) that bonds second electrodes (104) of a circuit board (105) and bumps (103) of a semiconductor package (101), the bonding material (106) being surrounded by a first reinforcing resin (107). Moreover, a portion between the outer periphery of the semiconductor package (101) and the circuit board (105) is covered with a second reinforcing resin (108). Even if the bonding material (106) is a solder material having a lower melting point than a conventional bonding material, high drop resistance is obtained.

A semiconductor device includes an electric conductor, a semiconductor element, and a bonding layer. The electric conductor has a main surface and a rear surface opposite to the main surface in a thickness direction. The semiconductor element includes a main body and electrodes. The main body has a side facing the main surface of the conductor, and the electrodes each protrude toward the main surface from the side of the main body to be electrically connected to the main surface. The bonding layer is held in contact with the main surface and the electrodes. Each electrode includes a base portion in contact with the main body, and a columnar portion protruding toward the main surface from the base portion to be held in contact with the bonding layer, which is a sintered body of a metal powder.

A semiconductor package including a package substrate; a first semiconductor chip on the package substrate; a second semiconductor chip on an upper surface of the first semiconductor chip; an insulating layer on surfaces of the first semiconductor chip and the second semiconductor chip; a heat dissipation member on the insulating layer such that the heat dissipation member includes a region on an upper surface of the first semiconductor chip on which the second semiconductor chip is not disposed, and a region on an upper surface of the second semiconductor chip; a molding member on the package substrate and encapsulating the first semiconductor chip, the second semiconductor chip, and the heat dissipation member such that the molding member exposes at least a portion of an upper surface of the heat dissipation member; and a reinforcing member on the heat dissipation member and the molding member.

A semiconductor device package includes a first electronic component, a plurality of first conductive traces, a second electronic component, a plurality of second conductive traces and a plurality of first conductive structures. The first electronic component has a first active surface. The first conductive traces are disposed on and electrically connected to the first active surface. The second electronic component is stacked on the first electronic component. The second electronic component has an inactive surface facing the first active surface, a second active surface opposite the inactive surface, and at least one lateral surface connecting the second active surface and the inactive surface. The second conductive traces are electrically connected to the second active surface, and extending from the second active surface to the lateral surface. The first conductive structures are electrically connecting the second conductive traces to the first conductive traces, respectively.

Packaging solutions for devices and systems comprising lateral GaN power transistors are disclosed, including components of a packaging assembly, a semiconductor device structure, and a method of fabrication thereof. In the packaging assembly, a GaN die, comprising one or more lateral GaN power transistors, is sandwiched between first and second leadframe layers, and interconnected using low inductance interconnections, without wirebonding. For thermal dissipation, the dual leadframe package assembly can be configured for either front-side or back-side cooling. Preferred embodiments facilitate alignment and registration of high current/low inductance interconnects for lateral GaN devices, in which contact areas or pads for source, drain and gate contacts are provided on the front-side of the GaN die. By eliminating wirebonding, and using low inductance interconnections with high electrical and thermal conductivity, PQFN technology can be adapted for packaging GaN die comprising one or more lateral GaN power transistors.

An IC package, an electronic assembly, and methods of preventing warpage of components of an electronic assembly during fabrication of the electronic assembly are shown. An IC package including an adhesive disposed at or near at least one of four corners of a die of the IC package is shown. An electronic assembly including an IC package that includes an adhesive disposed at or near at least one of four corners of a second surface of a first substrate is shown. Methods of preventing warpage of components of an electronic assembly during fabrication of the electronic assembly that include applying an adhesive to at least one of four corners of a first surface of a first component are shown.

A semiconductor device has a semiconductor die with a die pad layout. Signal pads in the die pad layout are located primarily near a perimeter of the semiconductor die, and power pads and ground pads are located primarily inboard from the signal pads. The signal pads are arranged in a peripheral row or in a peripheral array generally parallel to an edge of the semiconductor die. Bumps are formed over the signal pads, power pads, and ground pads. The bumps can have a fusible portion and non-fusible portion. Conductive traces with interconnect sites are formed over a substrate. The bumps are wider than the interconnect sites. The bumps are bonded to the interconnect sites so that the bumps cover a top surface and side surfaces of the interconnect sites. An encapsulant is deposited around the bumps between the semiconductor die and substrate.

A package structure includes a semiconductor die and a first redistribution circuit structure. The first redistribution circuit structure is disposed on and electrically connected to the semiconductor die, and includes a first build-up layer. The first build-up layer includes a first metallization layer and a first dielectric layer laterally wrapping the first metallization layer, wherein at least a portion of the first metallization layer is protruded out of the first dielectric layer.

A semiconductor device includes: a first semiconductor chip having a first electrode and a second electrode on a first surface and having a third electrode on a second surface that is opposite to the first surface; a second semiconductor chip having a first electrode and a second electrode on a first surface and having a third electrode on a second surface that is opposite to the first surface; a first electrode plate bonded to the second electrode of the first semiconductor chip by a bonding material; a second electrode plate bonded to the third electrode of the second semiconductor chip by a bonding material; and a third electrode plate placed between the first semiconductor chip and the second semiconductor chip and having a first area sandwiched between the first semiconductor chip and the second semiconductor chip and a second area not sandwiched between the first semiconductor chip and the second semiconductor chip, wherein one surface of the first area of the third electrode plate is bonded to the second electrode of the second semiconductor chip by a bonding material, and another surface of the first area of the third electrode plate is bonded to the third electrode of the first semiconductor chip by a bonding material, and wherein in the third electrode plate, the first area is thinner than the second area.