Abstract:
A method of forming an electrically conductive path through a portion of a semiconductor material, wherein the semiconductor material abuts a substrate and wherein the semiconductor material comprises multiple electronic devices, involves forming an annular trench in the portion, forming an island of semiconductor material within the annular trench, filling the annular trench with an electrically insulating material, removing at least some of the island of semiconductor material to create an exposed inner surface, metalizing at least a portion of the exposed inner surface with a material, and thinning an outer surface side of the substrate until at least the material from the metalizing is exposed on the outer surface side of the substrate.
Abstract:
A method of attaching a pair of chips (a and b) shown in Figure (150), each having primary contacts that can be mated to each other, involves forming one or more secondary contacts on each of the two chips of a shape sufficient to prevent an initial attachment material from contacting any of the primary contacts during a preliminary attachment operation, the secondary contacts further having a height that will prevent the primary contacts from touching when the secondary contacts are brought into contact with each other, bringing the secondary contacts into closer and closer aligned proximity to each other at least until the primary contacts touch in a first phase, and heating the primary contacts until material between each of the corresponding primary contacts of each of the chips in the pair forms an electrical connection
Abstract:
A system has a first chip having first semiconductor devices and first electrical connections, a second chip having second semiconductor devices and second electrical connections, and a third chip having third semiconductor devices and third electrical connections, the third chip being stacked on top of and physically spanning at least a portion of each of the first and second chips and being connected to the first and second chips.
Abstract:
A method of physically and electrically joining two chips to each other involves aligning an electrically conductive contact of a first chip with a corresponding electrically conductive contact on a second chip, the electrically conductive contact of the first chip being a rigid material and the electrically conductive contact of the second chip being a material that is malleable, bringing the aligned electrically conductive contact of the first chip into contact with the corresponding electrically conductive contact on the second chip, elevating the contact of the chips to a temperature that is below a liquidus temperature for both the rigid material and the material that is malleable while applying pressure to the chips so as to cause the rigid material to penetrate the malleable material and form an electrically conductive connection, and, following the forming of the electrically conductive connection, cooling the contacts to an ambient temperature.
Abstract:
A method performed on a semiconductor chip having a doped semiconductor material abutting a substrate involves creating a first via through at least a portion of the substrate extending from an outer side of the substrate towards the doped semiconductor material, the first via having a wall surface and a bottom, introducing a first electrically conductive material into the first via so as to create an electrically conductive path, creating a second via, aligned with the first via, extending from an outer surface of the doped portion of the semiconductor chip to the bottom, and introducing a second electrically conductive material into the second via so as to create an electrically conductive path.
Abstract:
An apparatus has two slabs of substrate material joined to each other, the two slabs including a pair of contacts joined to each other having a shape separating a first area from a second area.
Abstract:
An assembly for producing an electronic assembly by sintering, comprising a lower sintering tool (30) having a recess (32) for receiving an electronic assembly (20) to be produced by sintering, an upper sintering tool (40) for exerting a pressure directed against the lower sintering tool, and a protective film (50) arranged between the lower sintering tool and the upper sintering tool covering at least the recess of the lower sintering tool, characterized in that the protective film is perforated (52) to allow the feeding of a protective gas to the surface of the electronic assembly (20).
Abstract:
A transfer substrate with a compliant resin is used to bond one or more chips to a target wafer. An implant region is formed in a transfer substrate. A portion of the transfer substrate is etched to form a riser. Compliant material is applied to the transfer substrate. A chip is secured to the compliant material, wherein the chip is secured to the compliant material above the riser. The chip is bonded to a target wafer while the chip is secured to the compliant material. The transfer substrate and compliant material are removed from the chip. The transfer substrate is opaque to UV light.