摘要:
Semiconductor devices and methods of forming a barrier metal in semiconductor devices are disclosed. A disclosed semiconductor device includes a metal layer on a semiconductor substrate; an interlayer dielectric layer on the metal layer, a hole in the interlayer dielectric layer that exposes a portion of the metal layer; and a barrier metal on inner walls of the hole. The barrier metal is made of TaSiN having a resistivity less than or equal to about 10,000 μohm-cm.
摘要:
A method for manufacturing a metal pad connected to a metal line in a semiconductor device is provided. The method includes forming an interlevel dielectric (ILD) layer on a substrate; forming at least one metal line on the ILD layer; forming a metal barrier on the ILD layer and the metal line; reforming the surface of the metal barrier by performing a reforming process using an inert gas; and forming a metal pad on the metal barrier.
摘要:
We disclose a method of applying a sculptured layer of material on a semiconductor feature surface using ion deposition sputtering, wherein a surface onto which the sculptured layer is applied is protected to resist erosion and contamination by impacting ions of a depositing layer. A first protective layer of material is deposited on a substrate surface using traditional sputtering or ion deposition sputtering, in combination with sufficiently low substrate bias that a surface onto which the layer is applied is not eroded away or contaminated during deposition of the protective layer. Subsequently, a sculptured second layer of material is applied using ion deposition sputtering at an increased substrate bias, to sculpture a shape from a portion of the first protective layer of material and the second layer of depositing material. The method is particularly applicable to the sculpturing of barrier layers, wetting layers, and conductive layers upon semiconductor feature surfaces.
摘要:
In one aspect, the invention includes a method of forming a material comprising tungsten and nitrogen, comprising: a) providing a substrate; b) depositing a layer comprising tungsten and nitrogen over the substrate; and c) in a separate step from the depositing, exposing the layer comprising tungsten and nitrogen to a nitrogen-containing plasma. In another aspect, the invention includes a method of forming a capacitor, comprising: a) forming a first electrical node; b) forming a dielectric layer over the first electrical node; c) forming a second electrical node; and d) providing a layer comprising tungsten and nitrogen between the dielectric layer and one of the electrical nodes, the providing comprising; i) depositing a layer comprising tungsten and nitrogen; and ii) in a separate step from the depositing, exposing the layer comprising tungsten and nitrogen to a nitrogen-containing plasma.
摘要:
Method for removing and/or redistributing material in the trenches and/or vias of integrated circuit interconnect structures by a gas cluster ion beam (GCIB) is described to improve the fabrication process and quality of metal interconnects in an integrated circuit. The process entails opening up an undesired ‘necked in’ region at the entrance to the structure, re-depositing the barrier metal from thicker areas such as the neck or bottom of the structure to the side walls and/or removing some of the excess and undesired material on the bottom of the structure by sputtering. The GCIB process may be applied after the barrier metal deposition and before the copper seed layer/copper electroplating or the process may be applied after the formation of the copper seed layer and before electroplating. The method may extend the usability of the known interconnect deposition technologies to next generation integrated circuits and beyond.
摘要:
In a method for forming a wiring of a semiconductor device using an atomic layer deposition, an insulating interlayer is formed on a substrate. Tantalum amine derivatives represented by a chemical formula Ta(NR1)(NR2R3)3 in which R1, R2 and R3 represent H or C1–C6 alkyl group are introduced onto the insulating interlayer. A portion of the tantalum amine derivatives is chemisorbed on the insulating interlayer. The rest of tantalum amine derivatives non-chemisorbed on the insulating interlayer is removed from the insulating interlayer. A reacting gas is introduced onto the insulating interlayer. A ligand in the tantalum amine derivatives chemisorbed on the insulating interlayer is removed from the tantalum amine derivatives by a chemical reaction between the reacting gas and the ligand to form a solid material including tantalum nitride. The solid material is accumulated on the insulating interlayer through repeating the above processes to form a wiring.
摘要翻译:在使用原子层沉积形成半导体器件的布线的方法中,在基板上形成绝缘中间层。 由化学式Ta(NR 1)3(NR 2 R 3)3表示的钽胺衍生物,其中 R 1,R 2和R 3代表H或C 1 -C 6 >烷基引入到绝缘中间层上。 一部分钽胺衍生物被化学吸附在绝缘中间层上。 在绝缘中间层上除去非化学吸附在绝缘中间层上的其余的钽胺衍生物。 将反应气体引入到绝缘中间层上。 化学吸附在绝缘中间层上的钽胺衍生物中的配体通过反应气体和配位体之间的化学反应从钽胺衍生物中除去以形成包括氮化钽的固体材料。 通过重复上述处理,将固体材料积聚在绝缘层间,形成布线。
摘要:
An object of the invention is to make it possible to perform the embedding of a Cu diffusion preventing film and a Cu film to a fine pattern of a high aspect ratio by using a medium of a supercritical state in a manufacturing process of a semiconductor device. The object of the invention is achieved by a substrate processing method comprising a first step of processing a substrate by supplying a first processing medium containing a first medium of a supercritical state onto the substrate, a second step of forming a Cu diffusion preventing film on the substrate by supplying a second processing medium containing a second medium of a supercritical state onto the substrate, and a third step of forming a Cu film on the substrate by supplying a third processing medium containing a third medium of a supercritical state onto the substrate.
摘要:
A method of manufacturing a semiconductor device contact including forming an insulating layer over a substrate and forming an agglutinating layer over the insulating layer. The agglutinating layer is then exposed to a plasma treatment. A barrier layer is formed over the plasma-treated agglutinating layer, and a conductive layer is formed over the barrier layer.
摘要:
The present invention provides a method for forming a metal silicide layer in an active area of the semiconductor device. The method for forming the metal silicide layer includes: forming a source/drain junction area on a silicon substrate; forming an attack protection layer on the source/drain junction area, wherein the attack protection layer is electrically conductive and prevents a silicon substrate attack caused by chlorine (Cl) gas; forming a titanium (Ti) layer over the attack protection layer through a low pressure chemical vapor deposition (LPCVD) process using a source gas of TiCl4; and diffusing the Ti layer into the attack protection layer to thereby form a metal silicide layer.
摘要:
An object of the invention is to provide a semiconductor device which includes a barrier metal having high adhesiveness and diffusion barrier properties and a method of manufacturing the semiconductor device. The invention provides a semiconductor device manufacturing method including forming a first layer made of a material containing silicon on a base substance; forming a second layer containing metal and nitrogen on the first layer; and exposing the second layer to active species obtained from plasma in an atmosphere including reducing gas.