Abstract: Exemplary methods of semiconductor processing may include forming a layer of silicon-containing material on a semiconductor substrate. The methods may include performing a post-formation treatment on the layer of silicon-containing material to yield a treated layer of silicon-containing material. The methods may include contacting the treated layer of silicon-containing material with an adhesion agent. The methods may include forming a layer of a resist material on the treated layer of silicon-containing material.

Abstract: A semiconductor device has anisotropically formed via holes through a PMD layer. The anisotropic geometry of the via holes results in the diameter of a via hole over a gate structure being equal to the diameter of a via hole not over the gate structure. The via holes are formed by depositing a silicon layer and an antireflective layer over the PMD layer. The silicon layer and the antireflective layer are etched to have holes with a regular taper. The holes through the PMD are anisotropically etched so as to have straight walls.

Abstract: A method for manufacturing a semiconductor device comprising: a first step of successively forming a silicon oxide film and a silicon nitride film on a silicon substrate, followed by forming a silicon nitride oxide film or a multilayered film containing the silicon nitride oxide film on the silicon nitride film; a second step of forming a photoresist film having an opening portion located at the position corresponding to an element isolation area of the silicon substrate on the silicon nitride film or the multilayered film according to a photolithography method; a third step of forming a trench having a pair of tapered side surface portions on the confronting side surfaces thereof on the silicon nitride oxide film or the multilayered film by using the photoresist film as a mask, the tapered side surface portions being inclined toward the substrate side so as to approach each other; and a fourth step of patterning the silicon nitride film and the silicon oxide film by dry etching by using the photoresist fi

Abstract: A semiconductor device has anisotropically formed via holes through a PMD layer. The anisotropic geometry of the via holes results in the diameter of a via hole over a gate structure being equal to the diameter of a via hole not over the gate structure. The via holes are formed by depositing a silicon layer and an antireflective layer over the PMD layer. The silicon layer and the antireflective layer are etched to have holes with a regular taper. The holes through the PMD are anisotropically etched so as to have straight walls.

Abstract: A semiconductor device has anisotropically formed via holes through a PMD layer. The anisotropic geometry of the via holes results in the diameter of a via hole over a gate structure being equal to the diameter of a via hole not over the gate structure. The via holes are formed by depositing a silicon layer and an antireflective layer over the PMD layer. The silicon layer and the antireflective layer are etched to have holes with a regular taper. The holes through the PMD are anisotropically etched so as to have straight walls.

Abstract: A method for manufacturing a semiconductor device comprising: a first step of successively forming a silicon oxide film and a silicon nitride film on a silicon substrate, followed by forming a silicon nitride oxide film or a multilayered film containing the silicon nitride oxide film on the silicon nitride film; a second step of forming a photoresist film having an opening portion located at the position corresponding to an element isolation area of the silicon substrate on the silicon nitride film or the multilayered film according to a photolithography method; a third step of forming a trench having a pair of tapered side surface portions on the confronting side surfaces thereof on the silicon nitride oxide film or the multilayered film by using the photoresist film as a mask, the tapered side surface portions being inclined toward the substrate side so as to approach each other; and a fourth step of patterning the silicon nitride film and the silicon oxide film by dry etching by using the photoresist film

Abstract: A semiconductor device has anisotropically formed via holes through a PMD layer. The anisotropic geometry of the via holes results in the diameter of a via hole over a gate structure being equal to the diameter of a via hole not over the gate structure. The via holes are formed by depositing a silicon layer and an antireflective layer over the PMD layer. The silicon layer and the antireflective layer are etched to have holes with a regular taper. The holes through the PMD are anisotropically etched so as to have straight walls.