摘要:
A hard mask layer stack for patterning a layer to be patterned includes a carbon layer disposed on top of the layer to be patterned, a first layer of a material selected from the group of SiO2 and SiON disposed on top of the carbon layer and a silicon layer disposed on top of the first layer. A method of patterning a layer to be patterned includes providing the above described hard mask layer stack on the layer to be patterned and patterning the silicon hard mask layer in accordance with a pattern to be formed in the layer that has to be patterned.
摘要:
A method for manufacturing an integrated circuit including at least one storage cell is provided. The method includes providing a substrate having a first and second side, and a plurality of parallel trenches so that a dividing wall is formed between adjacent trenches, filling the trenches with an insulating compound, providing a first insulating layer having a first and second side on the top surface of the dividing wall, wherein the first side is arranged on the substrate's first side, providing a first conductive layer having a first and second side, wherein the first side is arranged on the insulating layer's second side, wherein the conductive layer protrudes from the substrate surface, providing a second conductive layer having a first and second side, wherein the first side is located on the first conductive layer's second side, and removing parts of the second conductive layer by an anisotropic etching means.
摘要:
A memory array includes first, second, third and forth memory cell strings. Each of the first, second, third, and fourth memory cell strings includes a number of serially-coupled memory cells, including a first memory cell and a last memory cell. A first interconnect is coupled to a first bit line and to each of the first, second, third and fourth memory cell strings. The first interconnect includes first, second, third and fourth string input select gates. Each input select gate has a first terminal coupled to the first bit line, and a second terminal coupled to one of the respective first, second, third or fourth memory cell strings.
摘要:
A memory cell arrangement includes a first memory cell string having a plurality of serially source-to-drain-coupled transistors, at least some of them being memory cells, a second memory cell string having a plurality of serially source-to-drain-coupled transistors, at least some of them being memory cells. A dielectric material is between and above the first memory cell string and the second memory cell string. A source/drain line groove is defined in the dielectric material. The source/drain line groove extends from a source/drain region of one transistor of the first memory cell string to a source/drain region of the second memory cell string. Electrically conductive filling material is disposed in the source/drain line groove. Dielectric filling material is disposed in the source/drain line groove between the source/drain regions.
摘要:
Disclosed is a semiconductor device comprising a semiconductor substrate, a capacitor provided above the semiconductor substrate and including a bottom electrode, a top electrode, and a dielectric film provided between the bottom electrode and the top electrode, the bottom electrode comprising a first conductive film containing iridium, a second conductive film provided between the dielectric film and the first conductive film and formed of a noble metal film, a third conductive film provided between the dielectric film and the second conductive film and formed of a metal oxide film having a perovskite structure, and a diffusion prevention film provided between the first conductive film and the second conductive film and including at least one of a metal film and a metal oxide film, the diffusion prevention film preventing diffusion of iridium contained in the first conductive film.
摘要:
A multi-layer electrode (246) and method of fabrication thereof in which a conductive region (244) is separated from a barrier layer (222) by a first conductive liner (240) and a second conductive liner (242). First conductive layer (240) comprises Pt, and second conductive liner (242) comprises a thin layer of conductive oxide. The multi-layer electrode (246) prevents oxygen diffusion through the top conductive region (244) and reduces material variation during electrode patterning.
摘要:
A capacitor with improved reliability is disclosed. The capacitor includes a bottom electrode, a top electrode, and an intermediate layer therebetween. A contact, which is electrically coupled to the top electrode, is provided. At least a portion of the contact is offset from the capacitor. By offsetting the contact from the top electrode, the etch damage to the top electrode is reduced, thereby reducing or eliminating the need for the anneal to repair the etch damage.
摘要:
A capacitor structure of a semiconductor memory cell such as a FERAM has an upper electrode less susceptible a damage even by heat-treatment in a hydrogen gas atmosphere. The capacitor structure includes a lower electrode, a capacitor thin film formed of a ferroelectric thin film formed on the lower electrode, and an upper electrode formed on the capacitor thin film. The upper electrode is made of Ru.sub.1-x O.sub.x (0.1