A first anisotropic conductive film 1A or a second anisotropic conductive film 1B has a first insulating resin layer 2 and a second insulating resin layer 3. The first insulating resin layer 2 is formed of a photopolymerized resin, and the second insulating resin layer 3 is formed of a polymerizable resin. Conductive particles 10 are disposed in a single layer on a surface of the first insulating resin layer 2 on a side of the second insulating resin layer 3. The first anisotropic conductive film further has a third insulating resin layer 4 formed of a polymerizable resin, and the second anisotropic conductive film 1B has an intermediate insulating resin layer 6. The intermediate insulating resin layer 6 is formed of a resin containing no polymerization initiator, and is in contact with the conductive particles 10. These anisotropic conductive films have favorable connection reliability.

A first anisotropic conductive film 1A or a second anisotropic conductive film 1B has a first insulating resin layer 2 and a second insulating resin layer 3. The first insulating resin layer 2 is formed of a photopolymerized resin, and the second insulating resin layer 3 is formed of a polymerizable resin. Conductive particles 10 are disposed in a single layer on a surface of the first insulating resin layer 2 on a side of the second insulating resin layer 3. The first anisotropic conductive film further has a third insulating resin layer 4 formed of a polymerizable resin, and the second anisotropic conductive film 1B has an intermediate insulating resin layer 6. The intermediate insulating resin layer 6 is formed of a resin containing no polymerization initiator, and is in contact with the conductive particles 10. These anisotropic conductive films have favorable connection reliability.

A display device comprises a first electrode, a first insulating layer disposed on the first electrode, a second electrode disposed on the first insulating layer, at least a part of the second electrode facing the first electrode in a first direction, one or more first light-emitting elements disposed between the first electrode and the second electrode, the one or more first light-emitting elements extending in a direction, wherein the first insulating layer partially encompasses the outer surface of the one or more first light-emitting element, and the extending direction of at least one of the one or more first light-emitting element is parallel to the first direction.

A display device comprises a first electrode, a first insulating layer disposed on the first electrode, a second electrode disposed on the first insulating layer, at least a part of the second electrode facing the first electrode in a first direction, one or more first light-emitting elements disposed between the first electrode and the second electrode, the one or more first light-emitting elements extending in a direction, wherein the first insulating layer partially encompasses the outer surface of the one or more first light-emitting element, and the extending direction of at least one of the one or more first light-emitting element is parallel to the first direction.

A display device includes a first substrate that includes a first electrode, a second substrate disposed under the first substrate and that includes, a second electrode that overlaps the first electrode, and an anisotropic conductive film disposed between the first substrate and the second substrate. The anisotropic conductive film includes an insulating resin layer and a plurality of conductive particles in the insulating resin layer. The conductive particles include first conductive particles that overlap the first electrode and the second electrode, and second conductive particles other than the first conductive particles. Each of the first conductive particles and the second conductive particles includes a first flat surface, a second flat surface that faces the first flat surface, and a curved surface rounded between the first flat surface and the second flat surface.

A display device includes a first substrate that includes a first electrode, a second substrate disposed under the first substrate and that includes, a second electrode that overlaps the first electrode, and an anisotropic conductive film disposed between the first substrate and the second substrate. The anisotropic conductive film includes an insulating resin layer and a plurality of conductive particles in the insulating resin layer. The conductive particles include first conductive particles that overlap the first electrode and the second electrode, and second conductive particles other than the first conductive particles. Each of the first conductive particles and the second conductive particles includes a first flat surface, a second flat surface that faces the first flat surface, and a curved surface rounded between the first flat surface and the second flat surface.

A semiconductor package manufacturing method of the disclosure includes providing a multilayer adhesive film, forming a notch and a plurality of openings extending through the multilayer adhesive film, attaching the multilayer adhesive film to a back side of a wafer to form a stack, separating the stack into a plurality of individual stacks, separating each of the plurality of individual stacks into an upper stack and a lower stack, providing a substrate on which a first semiconductor chip is mounted, and stacking the upper stack on the first semiconductor chip. The upper stack includes a second semiconductor chip and a die attach pattern covering a portion of a back surface of the second semiconductor chip. A first side surface of the die attach pattern is aligned with a first side surface of the first semiconductor chip.

A semiconductor package manufacturing method of the disclosure includes providing a multilayer adhesive film, forming a notch and a plurality of openings extending through the multilayer adhesive film, attaching the multilayer adhesive film to a back side of a wafer to form a stack, separating the stack into a plurality of individual stacks, separating each of the plurality of individual stacks into an upper stack and a lower stack, providing a substrate on which a first semiconductor chip is mounted, and stacking the upper stack on the first semiconductor chip. The upper stack includes a second semiconductor chip and a die attach pattern covering a portion of a back surface of the second semiconductor chip. A first side surface of the die attach pattern is aligned with a first side surface of the first semiconductor chip.

One aspect of the invention is a method of manufacturing a connection structure, including disposing an adhesive layer between a first electronic member including a first substrate and a first electrode formed on the first substrate and a second electronic member including a second substrate and a second electrode formed on the second substrate, and pressure-bonding the first electronic member and the second electronic member via the adhesive layer such that the first electrode and the second electrode are electrically connected to each other, wherein the first electronic member further including an insulating layer formed on a side of the first electrode opposite to the first substrate, and the adhesive layer including: a first conductive particle being a dendritic conductive particle; and a second conductive particle being a conductive particle other than the first conductive particle and having a non-conductive core and a conductive layer provided on the core.

One aspect of the invention is a method of manufacturing a connection structure, including disposing an adhesive layer between a first electronic member including a first substrate and a first electrode formed on the first substrate and a second electronic member including a second substrate and a second electrode formed on the second substrate, and pressure-bonding the first electronic member and the second electronic member via the adhesive layer such that the first electrode and the second electrode are electrically connected to each other, wherein the first electronic member further including an insulating layer formed on a side of the first electrode opposite to the first substrate, and the adhesive layer including: a first conductive particle being a dendritic conductive particle; and a second conductive particle being a conductive particle other than the first conductive particle and having a non-conductive core and a conductive layer provided on the core.