Abstract:
Techniques and methods related to forming a wrap-around contact on a semiconductor device, and apparatus, system, and mobile platform incorporating such semiconductor devices.
Abstract:
A transistor contact of the present description may be fabricated by forming a via through an interlayer dielectric layer disposed on a microelectronic substrate, wherein the via extends from a first surface of the interlayer dielectric layer to the microelectronic substrate forming a via sidewall and exposing a portion of the microelectronic substrate. A conformal contact material layer may then be formed adjacent the exposed portion of the microelectronic substrate, the at least one via sidewall, and the interlayer dielectric first surface. An etch block plug formed within the via proximate the microelectronic substrate. The contact material layer not protected by the etch block plug may be removed followed by the removal of the etch block plug and the filling the via with a conductive material.
Abstract:
A high capacitance embedded metal interconnect capacitor and associated fabrication processes are disclosed for using a directional barrier metal formation sequence in a dual damascene copper process to form multi-layer stacked copper interconnect structure having reduced barrier metal layer formation at the bottom of each via hole so that the multi- layer stacked copper interconnect structure may be readily removed and replaced with high capacitance MIM capacitor layers.
Abstract:
Described herein are methods of filling features with tungsten and related systems and apparatus. The methods include inside-out fill techniques as well as conformal deposition in features. Inside-out fill techniques can include selective deposition on etched tungsten layers in features. Conformal and non-conformal etch techniques can be used according to various implementations. The methods described herein can be used to fill vertical features, such as in tungsten vias, and horizontal features, such as vertical NAND (VNAND) word lines. Examples of applications include logic and memory contact fill, DRAM buried word line fill, vertically integrated memory gate/word line fill, and 3-D integration with through-silicon vias (TSVs).
Abstract:
In accordance with an embodiment of the present invention, a resistive switching device includes an opening disposed within a first dielectric layer 50, a conductive barrier layer 30 disposed on sidewalls of the opening, a fill material 40 including an inert material filling the opening. A solid electrolyte layer 60 is disposed over the opening. The solid electrolyte layer 60 contacts the fill material 40 but not the conductive barrier layer 30. A top electrode 70, 75 is disposed over the solid electrolyte layer 60.
Abstract:
[Problem] The purpose of the present invention is to provide an etching agent for a process for etching copper or a copper alloy from an electronic substrate that includes both nickel, and copper or a copper alloy, wherein said etching agent foams little during use and can highly selectively etch copper or a copper alloy. [Solution] An etching agent used in a process for selectively etching copper or a copper alloy from an electronic substrate that includes both nickel, and copper or a copper alloy, said etching agent for copper or a copper alloy having as essential components: a chain-like alkanolamine (A); a chelating agent (B) having an acid group within molecules thereof; and hydrogen peroxide (C).
Abstract:
A method for plating copper onto a semiconductor integrated circuit device substrate by forming an initial metal deposit in the feature which has a profile comprising metal on the bottom of the feature and a segment of the sidewalls having essentially no metal thereon, electrolessly depositing copper onto the initial metal deposit to fill the feature with copper. A method for plating copper onto a semiconductor integrated circuit device substrate by forming a deposit comprising a copper wettable metal in the feature, forming a copper-based deposit on the top-field surface, and depositing copper onto the deposit comprising the copper wettable metal to fill the feature with copper.