摘要:
An integrated circuit structure and methods for forming the same are provided. The integrated circuit structure includes a substrate; a through-silicon via (TSV) extending into the substrate; a TSV pad spaced apart from the TSV; and a metal line over, and electrically connecting, the TSV and the TSV pad.
摘要:
A method includes placing a plurality of bottom units onto a jig, wherein the plurality of bottom units is not sawed apart and forms an integrated component. Each of the plurality of bottom units includes a package substrate and a die bonded to the package substrate. A plurality of upper component stacks is placed onto the plurality of bottom units, wherein solder balls are located between the plurality of upper component and the plurality of bottom units. A reflow is performed to join the plurality of upper component stacks with respective ones of the plurality of bottom units through the solder balls.
摘要:
A bump structure in a semiconductor device or a packing assembly includes an under-bump metallization (UBM) layer formed on a conductive pad of a semiconductor substrate. The UBM layer has a width greater than a width of the conductive pad.
摘要:
A T-shaped post for semiconductor devices is provided. The T-shaped post has an under-bump metallization (UBM) section and a pillar section extending from the UBM section. The UBM section and the pillar section may be formed of a same material or different materials. In an embodiment, a substrate, such as a die, wafer, printed circuit board, packaging substrate, or the like, having T-shaped posts is attached to a contact of another substrate, such as a die, wafer, printed circuit board, packaging substrate, or the like. The T-shaped posts may have a solder material pre-formed on the pillar section such that the pillar section is exposed or such that the pillar section is covered by the solder material. In another embodiment, the T-shaped posts may be formed on one substrate and the solder material formed on the other substrate.
摘要:
Methods for forming lead free solder interconnections for integrated circuits. A copper column extends from an input/output terminal of an integrated circuit. A cap layer of material is formed on the input/output terminal of the integrated circuit. A lead free solder connector is formed on the cap layer. A substrate having a metal finish solder pad is aligned with the solder connector. An intermetallic compound is formed at the interface between the cap layer and the lead free solder connector. A solder connection is formed between input/output terminal of the integrated circuit and the metal finish pad that is less than 0.5 weight percent copper, and the intermetallic compound is substantially free of copper.
摘要:
Lead free solder interconnections for integrated circuits. A copper column extends from an input/output terminal of an integrated circuit. A cap layer of material is formed on the input/output terminal of the integrated circuit. A lead free solder connector is formed on the cap layer. A substrate having a metal finish solder pad is aligned with the solder connector. An intermetallic compound is formed at the interface between the cap layer and the lead free solder connector. A solder connection is formed between the input/output terminal of the integrated circuit and the metal finish pad that is less than 0.5 weight percent copper, and the intermetallic compound is substantially free of copper.
摘要:
A semiconductor chip includes a through-silicon via (TSV), a device region, and a cross-talk prevention ring encircling one of the device region and the TSV. The TSV is isolated from substantially all device regions comprising active devices by the cross-talk prevention ring.
摘要:
A semiconductor device having one or more through-silicon vias (TSVs) is provided. The TSVs are formed such that sidewalls of the TSVs have a scalloped surface. In an embodiment, the sidewalls of the TSVs are sloped wherein a top and bottom of the TSVs have different dimensions. The TSVs may have a V-shape wherein the TSVs have a wider dimension on a circuit side of the substrate, or an inverted V-shape wherein the TSVs have a wider dimension on a backside of the substrate. The scalloped surfaces of the sidewalls and/or sloped sidewalls allow the TSVs to be more easily filled with a conductive material such as copper.
摘要:
A method of forming a through silicon via (TSV) structure includes forming an interconnect pad over a substrate. An under layer is formed over the interconnect pad. A vertical conductive post is formed at least partially through the substrate. At least one dummy structure is formed at least partially through the under layer. A top pad is formed over the dummy structure and the vertical conductive post. The top pad covers a wider area than a cross section of the vertical conductive post. The interconnect pad is electrically connected to the top pad. The dummy structure connects the top pad and the under layer thereby fastening the top pad and the interconnect pad.
摘要:
A semiconductor device including a substrate having a front surface and a back surface is provided. A plurality of interconnect layers are formed on the front surface and have a first surface opposite the front surface of the substrate. A tapered profile via extends from the first surface of the plurality of interconnect layers to the back surface of the substrate. In one embodiment, a insulating layer is formed on the substrate and includes an opening, and wherein the opening includes conductive material providing contact to the tapered profile via.