H01L21/76801

Super-self-aligned contacts and method for making the same
09818747 · 2017-11-14 · ·

A number of first hard mask portions are formed on a dielectric layer to vertically shadow a respective one of a number of underlying gate structures. A number of second hard mask filaments are formed adjacent to each side surface of each first hard mask portion. A width of each second hard mask filament is set to define an active area contact-to-gate structure spacing. A first passage is etched between facing exposed side surfaces of a given pair of neighboring second hard mask filaments and through a depth of the semiconductor wafer to an active area. A second passage is etched through a given first hard mask portion and through a depth of the semiconductor wafer to a top surface of the underlying gate structure. An electrically conductive material is deposited within both the first and second passages to respectively form an active area contact and a gate contact.

Differential hardmasks for modulation of electrobucket sensitivity

Approaches based on differential hardmasks for modulation of electrobucket sensitivity for semiconductor structure fabrication, and the resulting structures, are described. In an example, a method of fabricating an interconnect structure for an integrated circuit includes forming a hardmask layer above an inter-layer dielectric (ILD) layer formed above a substrate. A plurality of dielectric spacers is formed on the hardmask layer. The hardmask layer is patterned to form a plurality of first hardmask portions. A plurality of second hardmask portions is formed alternating with the first hardmask portions. A plurality of electrobuckets is formed on the alternating first and second hardmask portions and in openings between the plurality of dielectric spacers. Select ones of the plurality of electrobuckets are exposed to a lithographic exposure and removed to define a set of via locations.

Self aligned gratings for tight pitch interconnects and methods of fabrication

An integrated circuit interconnect structure includes a first metallization level including a first metal line having a first sidewall and a second sidewall extending a length in a first direction. A second metal line is adjacent to the first metal line and a dielectric is between the first metal line and the second metal line. A second metallization level is above the first metallization level where the second metallization level includes a third metal line extending a length in a second direction orthogonal to the first direction. The third metal line extends over the first metal line and the second metal line but not beyond the first sidewall. A conductive via is between the first metal line and the third metal line where the conductive via does not extend beyond the first sidewall or beyond the second sidewall.

Polymer layers embedded with metal pads for heat dissipation

An integrated circuit structure includes a metal pad, a passivation layer including a portion over the metal pad, a first polymer layer over the passivation layer, and a first Post-Passivation Interconnect (PPI) extending into to the first polymer layer. The first PPI is electrically connected to the metal pad. A dummy metal pad is located in the first polymer layer. A second polymer layer is overlying the first polymer layer, the dummy metal pad, and the first PPI. An Under-Bump-Metallurgy (UBM) extends into the second polymer layer to electrically couple to the dummy metal pad.

Integrated Circuitry, DRAM Circuitry, Method Used in Forming Integrated Circuitry, and Method Used in Forming Memory Circuitry
20210408007 · 2021-12-30 · ·

A method used in forming integrated circuitry comprises forming conductive line structures having conductive vias laterally between and spaced longitudinally along immediately-adjacent of the conductive line structures. First insulating material is formed laterally between immediately-adjacent of the conductive vias. Second insulating material is formed directly above the first insulating material and directly above the conductive vias. The second insulating material comprises silicon, carbon, nitrogen, and hydrogen. A third material is formed directly above the second insulating material. The third material and the second insulating material comprise different compositions relative one another. The third material is removed from being directly above the second insulating material and the thickness of the second insulating material is reduced thereafter. A fourth insulating material is formed directly above the second insulating material of reduced thickness. A plurality of electronic components is formed above the fourth insulating material and that individually are directly electrically coupled to individual of the conductive vias through the fourth and second insulating materials. Other embodiments, including structure, are disclosed.

SELF-ALIGNED INTERCONNECT STRUCTURE

The present disclosure relates to a semiconductor structure including an interconnect structure disposed over a semiconductor substrate. A lower metal line is disposed at a first height over the semiconductor substrate and extends through a first interlayer dielectric layer. A second interlayer dielectric layer is disposed at a second height over the semiconductor substrate and comprises a first dielectric material. An upper metal line is disposed at a third height over the semiconductor substrate. A via is disposed at the second height. The via extends between the lower metal line and the upper metal line. A protective dielectric structure is disposed at the second height. The protective dielectric structure comprises a protective dielectric material and is disposed along a first set of opposing sidewalls of the via, the protective dielectric material differing from the first dielectric material.

Semiconductor device package and method for manufacturing the same

A semiconductor device package and a method for manufacturing the same are provided. The semiconductor device package includes a circuit layer and an antenna module. The circuit layer has a first surface, a second surface opposite to the first surface and a lateral surface. The lateral surface extends between the first surface and the second surface. The circuit layer has an interconnection structure. The antenna module has an antenna pattern layer and is disposed on the first surface of the circuit layer. The lateral surface of the circuit layer is substantially coplanar with a lateral surface of the antenna module.

Semiconductor device and semiconductor device manufacturing method for prevention of metallic diffusion into a semiconductor substrate
11373958 · 2022-06-28 · ·

Provided is a semiconductor device that includes a semiconductor substrate, an interconnection layer that is formed on a first face of the semiconductor substrate, at least one of a structural element that is formed to the interconnection layer, or a structural element that is formed in the semiconductor substrate from the first face side of the semiconductor substrate, a semiconductor-through-electrode that is positioned and formed, from a second face side of the semiconductor substrate opposite to the first face, so as to have a predetermined positional relationship with respect to the structural element, and a metallic-diffusion-preventing insulating layer that is formed from the first face side of the semiconductor substrate in a position, and with a shape, surrounding the semiconductor-through-electrode in the semiconductor substrate.

Advanced lithography and self-assembled devices

Advanced lithography techniques including sub-10 nm pitch patterning and structures resulting therefrom are described. Self-assembled devices and their methods of fabrication are described.

Semiconductor device and method for manufacturing the same

By using a conductive layer including Cu as a long lead wiring, increase in wiring resistance is suppressed. Further, the conductive layer including Cu is provided in such a manner that it does not overlap with the oxide semiconductor layer in which a channel region of a TFT is formed, and is surrounded by insulating layers including silicon nitride, whereby diffusion of Cu can be prevented; thus, a highly reliable semiconductor device can be manufactured. Specifically, a display device which is one embodiment of a semiconductor device can have high display quality and operate stably even when the size or definition thereof is increased.