Abstract:
A method for cleaning a plasma processing chamber is provided. The method includes introducing an organic gas into a plasma processing chamber. The organic gas includes an organic compound including carbon and hydrogen. The method includes generating an organic plasma by exciting the organic gas. The organic plasma reacts with metal compound residues over an interior surface of the plasma processing chamber to volatilize the metal compound residues into a gaseous metal compound. The method includes removing the gaseous metal compound from the plasma processing chamber.
Abstract:
A semiconductor device and method of manufacture are provided in which a passivation layer is patterned. In embodiments, by-products from the patterning process are removed using the same etching chamber and at the same time as the removal of a photoresist utilized in the patterning process. Such processes may be used during the manufacturing of FinFET devices.
Abstract:
Structures and formation methods of a semiconductor device structure are provided. The semiconductor device structure includes a fin structure over a semiconductor substrate. The semiconductor device structure also includes a gate stack covering a portion of the fin structure, and the gate stack includes a work function layer and a metal filling over the work function layer. The semiconductor device structure further includes an isolation element over the semiconductor substrate and adjacent to the gate stack. The isolation element is in direct contact with the work function layer and the metal filling.
Abstract:
Structures and formation methods of a semiconductor device structure are provided. The semiconductor device structure includes a gate stack over a semiconductor substrate and a protection element over the gate stack. The protection element has an upper portion and a lower portion between the upper portion and the gate stack, and the upper portion is wider than the lower portion. The semiconductor device structure also includes a spacer element over a side surface of the protection element and a sidewall of the gate stack. The semiconductor device structure further includes a conductive contact electrically connected to a conductive feature over the semiconductor substrate.
Abstract:
A method for forming an interconnect structure is provided. The method includes providing a substrate. The method also includes forming a dielectric layer on the substrate, and the dielectric layer includes an extreme low-k (ELK) dielectric layer. The method includes forming a via hole in the dielectric layer and forming a photoresist in the via hole and on the dielectric layer. The method also includes removing the photoresist by a plasma process using a CxHyOz gas and forming a conductive structure in the via hole.
Abstract translation:提供一种形成互连结构的方法。 该方法包括提供基板。 该方法还包括在衬底上形成电介质层,并且介电层包括极低k(ELK)电介质层。 该方法包括在电介质层中形成通孔,并在通孔和电介质层上形成光致抗蚀剂。 该方法还包括通过使用C x H y O z气体的等离子体工艺去除光致抗蚀剂并在通孔中形成导电结构。
Abstract:
A method includes depositing a mask layer over a dielectric layer, patterning the mask layer to form a trench, applying a patterned photo resist having a portion over the mask layer, and etching the dielectric layer using the patterned photo resist as an etching mask to form a via opening, which is in a top portion of the dielectric layer. The method further includes removing the patterned photo resist, and etching the dielectric layer to form a trench and a via opening underlying and connected to the trench. The dielectric layer is etched using the mask layer as an additional etching mask. A polymer formed in at least one of the trench and the via opening is removed using nitrogen and argon as a process gas. The trench and the via opening are filled to form a metal line and a via, respectively.
Abstract:
A semiconductor device and method of manufacture are provided in which a passivation layer is patterned. In embodiments, by-products from the patterning process are removed using the same etching chamber and at the same time as the removal of a photoresist utilized in the patterning process. Such processes may be used during the manufacturing of FinFET devices.
Abstract:
A method for forming a semiconductor device structure is provided. The method includes providing a substrate and forming a bottom layer, a middle layer, and a top layer on the substrate. The method also includes patterning the top layer to form a patterned top layer and patterning the middle layer by a patterning process including a plasma process to form a patterned middle layer. The plasma process is performed by using a mixed gas including hydrogen gas (H2). The method further includes controlling a flow rate of the hydrogen gas (H2) to improve an etching selectivity of the middle layer to the top layer, and the patterned middle layer includes a first portion and a second portion parallel to the first portion, and a pitch is between the first portion and the second portion.
Abstract:
One or more formation methods of a semiconductor device structure are provided. The method includes forming a dummy gate stack over a semiconductor substrate and forming spacer elements over sidewalls of the dummy gate stack. The method also includes removing the dummy gate stack to form a recess between the spacer elements. The method further includes partially removing the spacer elements such that an upper portion of the recess becomes wider. In addition, the method includes forming a metal gate stack in the recess and forming a protection element over the metal gate stack to fill the recess.
Abstract:
A method for forming a semiconductor device structure is provided. The method includes forming a dielectric layer over a semiconductor substrate and forming a hard mask layer over the dielectric layer. The method also includes performing a plasma etching process to etch the hard mask layer to form an opening, and a gas mixture used in the plasma etching process includes a nitrogen-containing gas, a halogen-containing gas, and a carbon-containing gas. The gas mixture has a volumetric concentration of the nitrogen-containing gas in a range from about 20% to about 30%. A volumetric concentration ratio of the carbon-containing gas to the halogen-containing gas in the gas mixture is equal to about 0.3. The method further includes etching the dielectric layer through the opening in the hard mask layer to form a feature opening in the dielectric layer. The method includes forming a conductive material in the feature opening.