A semiconductor chip includes: a base substrate; a conductive pad on one surface of the base substrate; an insulating layer on the one surface of the base substrate and having an opening exposing a portion of the conductive pad; and a bump on the exposed portion of the conductive pad and on the insulating layer around the opening. The bump includes a plurality of concave portions corresponding to the opening and is arranged in a longitudinal direction of the bump.

A semiconductor chip includes: a base substrate; a conductive pad on one surface of the base substrate; an insulating layer on the one surface of the base substrate and having an opening exposing a portion of the conductive pad; and a bump on the exposed portion of the conductive pad and on the insulating layer around the opening. The bump includes a plurality of concave portions corresponding to the opening and is arranged in a longitudinal direction of the bump.

A semiconductor device assembly including a semiconductor device having a plurality of pillars disposed on a backside surface of the semiconductor device; and a substrate, including: a solder mask layer disposed on a front side surface of the substrate, a plurality of extended bond pads disposed on the frontside surface of the substrate and surrounded by the solder mask layer, the plurality of extended bond pads each having a top surface higher than a top surface of the solder mask layer, and wherein the semiconductor device is directly attached to the substrate by bonding each of the plurality of pillars of the semiconductor device to the top surface of a corresponding one of the plurality of extended bond pads with a solder connection.

A method of manufacturing a bonding structure includes (a) providing a substrate, wherein the substrate includes a top surface and at least one bonding pad disposed adjacent to the top surface of the substrate, at least one bonding pad having a sloped surface with a first slope; (b) providing a semiconductor element, wherein the semiconductor element includes at least one pillar, and at least one pillar has a sidewall with a second slope, wherein the absolute value of the first slope is smaller than the absolute value of the second slope; and (c) bonding at least one pillar to a portion of the sloped surface of corresponding ones of the at least one bonding pad.

A method of manufacturing a bonding structure includes (a) providing a substrate, wherein the substrate includes a top surface and at least one bonding pad disposed adjacent to the top surface of the substrate, at least one bonding pad having a sloped surface with a first slope; (b) providing a semiconductor element, wherein the semiconductor element includes at least one pillar, and at least one pillar has a sidewall with a second slope, wherein the absolute value of the first slope is smaller than the absolute value of the second slope; and (c) bonding at least one pillar to a portion of the sloped surface of corresponding ones of the at least one bonding pad.

Provided herein may be an electronic device. The electronic device may include a substrate provided with a plurality of connecting pads including a first metal, a semiconductor chip on an area of the substrate, facing the connecting pads, and including a base substrate including a first surface facing the substrate, and a second surface opposite the first surface, a plurality of connecting terminals on the first surface, facing the connecting pads, and including a second metal, and a non-adhesive polymer layer on the second surface, and a conductive joining layer electrically connecting, and interposed between, respective ones of the connecting pads to the connecting terminals, and including a diffusion layer in which the first metal and the second metal are mixed.

Provided herein may be an electronic device. The electronic device may include a substrate provided with a plurality of connecting pads including a first metal, a semiconductor chip on an area of the substrate, facing the connecting pads, and including a base substrate including a first surface facing the substrate, and a second surface opposite the first surface, a plurality of connecting terminals on the first surface, facing the connecting pads, and including a second metal, and a non-adhesive polymer layer on the second surface, and a conductive joining layer electrically connecting, and interposed between, respective ones of the connecting pads to the connecting terminals, and including a diffusion layer in which the first metal and the second metal are mixed.

A semiconductor chip includes: a base substrate; a conductive pad on one surface of the base substrate; an insulating layer on the one surface of the base substrate and having an opening exposing a portion of the conductive pad; and a bump on the exposed portion of the conductive pad and on the insulating layer around the opening. The bump includes a plurality of concave portions corresponding to the opening and is arranged in a longitudinal direction of the bump.

A semiconductor chip includes: a base substrate; a conductive pad on one surface of the base substrate; an insulating layer on the one surface of the base substrate and having an opening exposing a portion of the conductive pad; and a bump on the exposed portion of the conductive pad and on the insulating layer around the opening. The bump includes a plurality of concave portions corresponding to the opening and is arranged in a longitudinal direction of the bump.

A method of manufacturing a bonding structure includes (a) providing a substrate, wherein the substrate includes a top surface and at least one bonding pad disposed adjacent to the top surface of the substrate, at least one bonding pad having a sloped surface with a first slope; (b) providing a semiconductor element, wherein the semiconductor element includes at least one pillar, and at least one pillar has a sidewall with a second slope, wherein the absolute value of the first slope is smaller than the absolute value of the second slope; and (c) bonding at least one pillar to a portion of the sloped surface of corresponding ones of the at least one bonding pad.