A semiconductor device includes a first substrate, an insulation layer, and a first electrode. The first substrate contains a first semiconductor material. The insulation layer includes a first surface, a second surface, and a third surface. The first electrode includes a fourth surface, a fifth surface, and a sixth surface, and contains a porous first conductive material. The second surface and the fifth surface configure the same surface. The third surface faces the sixth surface. A distance between the first surface and the first substrate is less than a distance between the second surface and the first substrate. A distance between the fourth surface and the first substrate is less than a distance between the fifth surface and the first substrate.

A semiconductor structure includes a first substrate including a first contact structure located on a first pad, and a second substrate including a second contact structure on a second pad. The first contact structure includes a first metal base layer covered by a first nano-twinned metal coating layer. The second contact structure includes a second nano-twinned metal coating layer on the second pad. The first contact structure is connected to the second contact structure, thereby forming a bonding interface between the first nano-twinned metal coating layer and the second nano-twinned metal coating layer.

A method of manufacturing a bonded substrate stack includes: providing a first substrate having a first hybrid interface layer, the first hybrid interface layer including a first insulator and a first metal; and providing a second substrate having a second hybrid interface layer, the second hybrid interface layer including a second insulator and a second metal. The hybrid interface layers are surface-activated to generate dangling bonds on the hybrid interface layers. The surface-activated hybrid interface layers are brought into contact, such that the dangling bonds of the first hybrid interface layer and the dangling bonds of the second hybrid interface layer bond together to form first insulator to second insulator bonds and first metal to second metal bonds.

A method of manufacturing a bonded substrate stack includes: providing a first substrate having a first hybrid interface layer, the first hybrid interface layer including a first insulator and a first metal; and providing a second substrate having a second hybrid interface layer, the second hybrid interface layer including a second insulator and a second metal. The hybrid interface layers are surface-activated to generate dangling bonds on the hybrid interface layers. The surface-activated hybrid interface layers are brought into contact, such that the dangling bonds of the first hybrid interface layer and the dangling bonds of the second hybrid interface layer bond together to form first insulator to second insulator bonds and first metal to second metal bonds.

A semiconductor device including a test pad contact and a method of manufacturing the semiconductor device are disclosed. In an embodiment, a semiconductor device may include a first metal feature and a second metal feature disposed in a single top metal layer over a substrate. A test pad may be formed over and electrically connected to the first metal feature. A first passivation layer may be formed over the second metal feature and the test pad and may cover top and side surfaces of the test pad. A first via may be formed penetrating the first passivation layer and contacting the test pad and a second via may be formed penetrating the first passivation layer and contacting the second metal feature.

A method of manufacturing a package structure is provided. The method of manufacturing a package structure comprises receiving a first semiconductor structure and a second semiconductor structure; forming an isolation layer on each semiconductor structure; forming at least one supporting structure and at least one pad trench in the isolation layer; filling the pad trench with electrically conductive material; plariarizing the isolation layer and the electrically conductive material to form bonding pads in a bonding layer on each semiconductor structure; and bonding the semiconductor structures.

An optoelectronic circuit including a substrate and display pixels, each display pixel having a first light-emitting diode adapted to emit a first radiation and a second light-emitting diode adapted to emit a second radiation, the first light-emitting diode having a planar structure and resting on the substrate and the second light-emitting diode having a tridimensional structure and resting on the first light-emitting diode or crossing at least partially through the first light-emitting diode.

A package comprising a chip carrier, an electronic chip on the chip carrier, a clip on the electronic chip, an encapsulant at least partially encapsulating the electronic chip, and an electrically conductive vertical connection structure provided separately from the clip and electrically connecting the chip carrier with the clip.

Provided is a die stack structure including a first die and a second die. The first die and the second die are bonded together through a hybrid bonding structure. A bonding insulating layer of the hybrid bonding structure extends to contact with one interconnect structure of the first die or the second die.

The present disclosure provides a semiconductor device, a method of manufacturing the semiconductor device and a mothed of method of manufacturing a semiconductor device assembly. The semiconductor device includes a substrate, a bonding dielectric disposed on the substrate, a first conductive feature disposed in the bonding dielectric, an air gap disposed in the bonding dielectric to separate a portion of a periphery of the first conductive feature from the bonding dielectric, and a second conductive feature including a base disposed in the bonding dielectric and a protrusion stacked on the base.