摘要:
The invention relates to integrated circuits, to a cell, to a cell arrangement, to a method for manufacturing an integrated circuit, to a method for manufacturing a cell, and to a memory module. In an embodiment of the invention, an integrated circuit is provided having a cell, the cell including a low-k dielectric layer, a first high-k dielectric layer disposed above the low-k dielectric layer, a charge trapping layer disposed above the first high-k dielectric layer, and a second high-k dielectric layer disposed above the charge trapping layer.
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 semiconductor product (1) includes a plurality of wordlines extending along a first lateral direction (x) along a substrate surface (22) and also includes contact structures (3) as well as filling structures (4) therebetween. Along the first direction (x) the contact structures (3) and the filling structures (4) are arranged in alternating order between two respective wordlines. Each contact structure (3) serves to connect two active areas (23) separated by one respective trench isolation filling (24) to a respective bitline (14). Accordingly, the width of the first contact structures (3) is much larger than the width of the bitlines (14) along the first direction (x). According to embodiments of the invention, tapered upper portions (9) of the contact structures (3) are shaped, the upper portions (9) having a width being significantly smaller than the width of the contact structures (3) along the first direction (x). Thereby, forming the bitlines (14) in direct contact to top surfaces (7) of contact structures (3) is possible without the risk of short circuits between adjacent bitlines (14).
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:
An improved barrier stack for inhibiting diffusion of atoms or molecules, such as O2 is disclosed. The barrier stack is particularly useful in capacitor over plug structures to prevent plug oxidation which can adversely impact the reliability of the structures. The barrier stack includes first and second barrier layers. In one embodiment, the first barrier layer comprises first and second sub-barrier layers having mismatched grain boundaries. The sub-barrier layers are selected from, for example, Ir, Ru, Pd, Rh, or alloys thereof. By providing mismatched grain boundaries, the interface of the sub-barrier layers block the diffusion path of oxygen. To further enhance the barrier properties, the first barrier layer is passivated with O2 using, for example, a rapid thermal oxidation. The RTO forms a thin oxide layer on the surface of the first barrier layer. The oxide layer can advantageously promote mismatching of the grain boundaries of the first and second sub-barrier layer. The second barrier layer comprises a conductive oxide.
摘要:
An electronic material is expressed by the composition formula M.sub.Ia M.sub.IIb O.sub.c (where a, b and c are compositions in atomic %, M.sub.I is at least one sort of noble metal selected from the group consisting of Pt, Ir, Ru, Rh and Pd, and M.sub.II is at least one sort of transition metal selected from the group consisting of Hf, Ta, Zr, Nb, V, Mo and W) having a composition within the range of 90.gtoreq.a.gtoreq.40, 15.gtoreq.b.gtoreq.2, 4.ltoreq.c and a+b+c=100. A dielectric capacitor comprises: a diffusion preventing layer made of the material expressed by the composition formula M.sub.ia M.sub.IIb O.sub.c ; a lower electrode on the diffusion preventing layer; a dielectric film on the lower electrode; and an upper electrode on the dielectric film. Another dielectric capacitor comprises: a diffusion preventing layer made of a material expressed by the composition formula M.sub.Ia M.sub.IIb O.sub.c (where a, b and c are compositions in atomic %, M.sub.II is at least one sort of noble metal selected from the group consisting of Pt, Ir, Ru, Rh and Pd, and M.sub.II is at least one sort of rare earth element) having a composition within the range of 90.gtoreq.a.gtoreq.40, 15.gtoreq.b.gtoreq.2, 4.ltoreq.c and a+b+c=100; a lower electrode on the diffusion preventing layer; a dielectric film on the lower electrode; and an upper electrode on the dielectric film.
摘要翻译:电子材料由组成式MIaMIIbOc表示(其中a,b和c是原子%的组成,MI是选自Pt,Ir,Ru,Rh和Pd中的至少一种贵金属,MII 是选自组成在90以上的组成的Hf,Ta,Zr,Nb,V,Mo和W中的至少一种过渡金属)= = > = = 4,4 = c和a + b + c = 100。 介电电容器包括:由组成式MiaMIIbOc表示的材料制成的防扩散层; 在扩散防止层上的下电极; 下电极上的电介质膜; 和电介质膜上的上电极。 另一介质电容器包括:由组成式MIaMIIbOc表示的材料制成的扩散防止层(其中a,b和c为原子%的组成,MII为选自Pt,Ir的至少一种贵金属 ,Ru,Rh和Pd,以及MII是至少一种稀土元素),其组成范围在90℃〜40℃的范围内, c和a + b + c = 100; 在扩散防止层上的下电极; 下电极上的电介质膜; 和电介质膜上的上电极。
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
摘要:
An integrated circuit and a method of forming an integrated circuit. One embodiment includes a conductive line formed above a surface of a carrier. A slope of the sidewalls of the conductive line in a direction perpendicular to the surface of the carrier reveals a discontinuity and a width of the conductive line in an upper portion thereof is larger than the corresponding width in the lower portion.
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.