H01L2224/17106

Multichip module and electronic device

A multichip module provided with a first substrate, a first semiconductor chip, a second substrate and a third substrate. The first semiconductor chip has a first surface provided with a first electrode and a second surface mounted on the first substrate so that the first wiring of a first mount surface of the first substrate is electrically connected to the first electrode. The second substrate has a second mounting surface and a third mounting surface bonded to the first substrate so that the second mounting surface is opposed to the first mounting surface. The third substrate has a fourth mounting surface provided with a second wiring and a fifth mounting surface bonded to the second silicon substrate so that the fourth mounting surface is opposed to the third mounting surface and is mounted with the first semiconductor chip so that the second wiring is electrically connected to the second surface.

EMBEDDED MULTI-DIE INTERCONNECT BRIDGE PACKAGES WITH LITHOTGRAPHICALLY FORMED BUMPS AND METHODS OF ASSEMBLING SAME

An embedded multi-die interconnect bridge apparatus and method includes photolithographically formed interconnects coupled to laser-drilled interconnects. Several structures in the embedded multi-die interconnect bridge apparatus exhibit characteristic planarization during fabrication and assembly.

GALLIUM-NITRIDE-BASED MODULE WITH ENHANCED ELECTRICAL PERFORMANCE AND PROCESS FOR MAKING THE SAME
20210257464 · 2021-08-19 ·

The present disclosure relates to a Gallium-Nitride (GaN) based module, which includes a module substrate, a thinned switch die residing over the module substrate, a first mold compound, and a second mold compound. The thinned switch die includes an electrode region, a number of switch interconnects extending from a bottom surface of the electrode region to the module substrate, an aluminium gallium nitride (AlGaN) barrier layer over a top surface of the electrode region, a GaN buffer layer over the AlGaN barrier layer, and a lateral two-dimensional electron gas (2DEG) layer realized at a heterojunction of the AlGaN barrier layer and the GaN buffer layer. The first mold compound resides over the module substrate, surrounds the thinned switch die, and extends above a top surface of the thinned switch die to form an opening over the top surface of the thinned switch die. The second mold compound fills the opening.

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURE
20210225785 · 2021-07-22 ·

A device includes a redistribution structure, a first semiconductor device, a first antenna, and a first conductive pillar on the redistribution structure that are electrically connected to the redistribution structure, an antenna structure over the first semiconductor device, wherein the antenna structure includes a second antenna that is different from the first antenna, wherein the antenna structure includes an external connection bonded to the first conductive pillar, and a molding material extending between the antenna structure and the redistribution structure, the molding material surrounding the first semiconductor device, the first antenna, the external connection, and the first conductive pillar.

Passive micro light-emitting diode matrix device with uniform luminance

A passive micro light-emitting diode matrix device with uniform luminance includes a micro light-emitting diode matrix including a plurality of micro light-emitting matrices, each of which includes a first layer, a plurality of light-emitting layers disposed on the first layer, a plurality of second layers disposed on the light-emitting layers, respectively, a plurality of first inner electrode layers disposed on the second layers, respectively, and a second inner electrode layer which is disposed on the first layer, and which includes a first portion and a second portion having a plurality of through holes to accommodate said light-emitting layers, respectively.

SEMICONDUCTOR PACKAGE AND METHOD FOR MANUFACTURING THE SAME

Present disclosure provides a semiconductor package, including a first substrate having a first active surface and a first trench recessed from the first active surface, a second substrate having a second trench facing the first trench, and a pathway cavity defined by the first trench and the second trench. The first trench comprises a first metal protrusion and a first insulating protrusion. A method for manufacturing the semiconductor package described herein is also disclosed.

LIGHT-EMITTING DEVICE PACKAGE
20210226110 · 2021-07-22 ·

A light-emitting device package includes a lead frame, a light-emitting device chip, a molding structure, and a plurality of slots. The lead frame includes a first lead and a second lead including metal and spaced apart from each other. The light-emitting device chip is mounted on a first area of the lead frame, which includes a part of the first lead and a part of the second lead. The molding structure includes an outer barrier surrounding an outside of the lead frame and an inner barrier. The plurality of slots are formed in each of the first lead and the second lead. The inner barrier divides the lead from into the first area and a second area. The inner barrier fills between the first lead in the second lead. The second area is located outside of the first area. The plurality of slots are filled by the molding structure.

IC DIE AND HEAT SPREADERS WITH SOLDERABLE THERMAL INTERFACE STRUCTURES FOR MULTI-CHIP ASSEMBLIES INCLUDING SOLDER ARRAY THERMAL INTERCONNECTS

Thermal heat spreaders and/or an IC die with solderable thermal structures may be assembled together with a solder array thermal interconnects. A thermal heat spreader may include a non-metallic material and one or more metallized surfaces suitable for bonding to a solder alloy employed as thermal interface material between the heat spreader and an IC die. An IC die may include a metallized back-side surface similarly suitable for bonding to a thermal interconnect comprising a solder alloy. Metallization on the IC die and/or heat spreader may comprise a plurality of solderable structures. A multi-chip package may include multiple IC die having different die thickness that are accommodated by a z-height thickness variation in the thermal interconnects and/or the solderable structures of the IC die or heat spreader.

Semiconductor packages with an intermetallic layer

A method of forming a semiconductor package. Implementations include forming on a die backside an intermediate metal layer having multiple sublayers, each including a metal selected from the group consisting of titanium, nickel, copper, silver, and combinations thereof. A tin layer is deposited onto the intermediate metal layer and is then reflowed with a silver layer of a substrate to form an intermetallic layer having a melting temperature above 260 degrees Celsius and including an intermetallic consisting of silver and tin and/or an intermetallic consisting of copper and tin. Another method of forming a semiconductor package includes forming a bump on each of a plurality of exposed pads of a top side of a die, each exposed pad surrounded by a passivation layer, each bump including an intermediate metal layer as described above and a tin layer coupled to the intermediate metal layer is reflowed to form an intermetallic layer.

Embedded multi-die interconnect bridge packages with lithotgraphically formed bumps and methods of assembling same

An embedded multi-die interconnect bridge apparatus and method includes photolithographically formed interconnects coupled to laser-drilled interconnects. Several structures in the embedded multi-die interconnect bridge apparatus exhibit characteristic planarization during fabrication and assembly.