摘要:
A semiconducting device with a dual sidewall spacer and method of forming are provided. The method includes: depositing a first spacer layer over a patterned structure, the first spacer layer having a seam propagating through a thickness of the first spacer layer near an interface region of a surface of the substrate and a sidewall of the patterned structure, etching the first spacer layer to form a residual spacer at the interface region, where the residual spacer coats less than the entirety of the sidewall of the patterned structure, depositing a second spacer layer on the residual spacer and on the sidewall of the patterned structure not coated by the residual spacer, the second spacer layer being seam-free on the seam of the residual spacer, and etching the second spacer layer to form a second spacer coating the residual spacer and coating the sidewall of the patterned structure not coated by the residual spacer.
摘要:
A gas delivery system for supplying a process gas from a gas supply to a thermal processing furnace, a thermal processing furnace equipped with the gas delivery system, and methods for delivering process gas to a thermal processing furnace. The gas delivery system comprises a plurality of regulators, such as mass flow controllers, in a process gas manifold coupling a gas supply with a thermal processing furnace. The regulators establish a corresponding plurality of flows of a process gas at a plurality of flow rates communicated by the process gas manifold to the thermal processing furnace. The gas delivery system may be a component of the thermal processing furnace that further includes a liner that surrounds a processing space inside the thermal processing furnace.
摘要:
A method and system for processing a substrate includes providing the substrate in a process chamber, where the substrate contains an oxide layer formed thereon, exciting a hydrogen-containing gas in a remote plasma source coupled to the process chamber, and exposing the substrate to a flow of the excited hydrogen-containing gas at a first substrate temperature lower than about 900° C. to remove the oxide layer from the substrate. The substrate is then maintained at a second temperature different than the first substrate temperature, and a silicon-containing film is formed on the substrate at the second substrate temperature.
摘要:
A method for selectively forming an epitaxial Si containing film on a semiconductor structure at low temperature. The method includes providing the structure in a process chamber, the structure containing a Si substrate having an epitaxial Si surface area and a patterned film area thereon. A Si film is non-selectively deposited onto the structure, the Si film comprising an epitaxial Si film deposited onto the epitaxial Si surface and a non-epitaxial Si film deposited onto an exposed surface of the patterned film. The non-epitaxial Si film is selectively dry etched away to form a patterned epitaxial Si film. The Si film may be a SiGe film.
摘要:
A thermal processing system with improved gas flow and method for injecting a process gas into a thermal processing system. The thermal processing system has an injection section with injection outlets that inject process gas into a processing space and a delivery section that delivers process gas to the injection section. The delivery section may be coupled with the injection section at an inlet disposed between opposite ends of the injection section. A fluid lumen of the injection section may have a larger cross-sectional area than a fluid lumen of the delivery section. The thermal processing system may include an inner tube, which surrounds the processing space, having a slit through which the processing space communicates with an annular pumping space defined between the inner tube and an outer tube of the thermal processing system.
摘要:
Ultra-thin oxynitride layers are formed utilizing low-pressure processing to achieve self-limiting oxidation of substrates and provide ultra-thin oxynitride. The substrates to be processed can contain an initial dielectric layer such as an oxide layer, an oxynitride layer, or a nitride layer, or alternatively can lack an initial dielectric layer. The processing can be carried out using a batch type process chamber or a single-wafer process chamber.
摘要:
A method is provided for selectively forming a Si-containing film on a substrate in an interrupted deposition process. The method includes providing a substrate containing a growth surface and a non-growth surface, and selectively forming the Si-containing film on the growth surface by exposing the substrate to HX gas while simultaneously exposing the substrate to a pulse of chlorinated silane gas. The Si-containing film can be a Si film or a SiGe film that is selectively formed on a Si or SiGe growth surface but not on an oxide, nitride, or oxynitride non-growth surface.
摘要:
A method for selectively forming an epitaxial Si containing film on a semiconductor structure at low temperature. The method includes providing the structure in a process chamber, the structure containing a Si substrate having an epitaxial Si surface area and a patterned film area thereon. A Si film is non-selectively deposited onto the structure, the Si film comprising an epitaxial Si film deposited onto the epitaxial Si surface and a non-epitaxial Si film deposited onto an exposed surface of the patterned film. The non-epitaxial Si film is selectively dry etched away to form a patterned epitaxial Si film. The Si film may be a SiGe film.
摘要:
A method of monitoring a thermal processing system in real-time using a built-in self test (BIST) table that includes positioning a plurality of wafers in a processing chamber in the thermal processing system; executing a real-time dynamic model to generate a predicted dynamic process response for the processing chamber during the processing time; creating a first measured dynamic process response; determining a dynamic estimation error using a difference between the predicted dynamic process response and the measured dynamic process response; and comparing the dynamic estimation error to operational thresholds established by one or more rules in the BIST table.
摘要:
A method for forming strained epitaxial carbon-doped silicon (Si) films, for example as raised source and drain regions for electronic devices. The method includes providing a structure having an epitaxial Si surface and a patterned film, non-selectively depositing a carbon-doped Si film onto the structure, the carbon-doped Si film containing an epitaxial carbon-doped Si film deposited onto the epitaxial Si surface and a non-epitaxial carbon-doped Si film deposited onto the patterned film, and non-selectively depositing a Si film on the carbon-doped Si film, the Si film containing an epitaxial Si film deposited onto the epitaxial carbon-doped Si film and a non-epitaxial Si film deposited onto the non-epitaxial carbon-doped Si film. The method further includes dry etching away the non-epitaxial Si film, the non-epitaxial carbon-doped Si film, and less than the entire epitaxial Si film to form a strained epitaxial carbon-doped Si film on the epitaxial Si surface.