Abstract:
A method is provided for depositing a gate dielectric that includes at least two rare earth, metal elements in the form of an oxynitride or an aluminum oxynitride. The method includes disposing a substrate (25, 92) in a process chamber (10) and exposing the substrate (25, 92) to a gas pulse containing a first rare earth precursor and to a gas pulse containing a second rare earth precursor. The substrate (25, 92) may also optionally be exposed to a gas pulse containing an aluminum precursor. Sequentially after each precursor gas pulse, the substrate (25, 92) is exposed to a gas pulse of an oxygen-containing gas, nitrogen-containing gas or an oxygen- and nitrogen-containing gas. In alternative embodiments, the first and second rare earth precursors may be pulsed together, and either or both, may be pulsed together with the aluminum precursor. The first and second rare earth precursors comprise a different rare earth metal element. The sequential exposing steps may be repeated to deposit a mixed rare earth oxynitride or aluminum oxynitride layer (96) with a desired thickness. Purge or evacuation steps may also be performed after each gas pulse.
Abstract:
A method is provided for depositing a gate dielectric that includes at least two rare earth, metal elements in the form of an oxynitride or an aluminum oxynitride. The method includes disposing a substrate (25, 92) in a process chamber (10) and exposing the substrate (25, 92) to a gas pulse containing a first rare earth precursor and to a gas pulse containing a second rare earth precursor. The substrate (25, 92) may also optionally be exposed to a gas pulse containing an aluminum precursor. Sequentially after each precursor gas pulse, the substrate (25, 92) is exposed to a gas pulse of an oxygen-containing gas, nitrogen-containing gas or an oxygen- and nitrogen-containing gas. In alternative embodiments, the first and second rare earth precursors may be pulsed together, and either or both, may be pulsed together with the aluminum precursor. The first and second rare earth precursors comprise a different rare earth metal element. The sequential exposing steps may be repeated to deposit a mixed rare earth oxynitride or aluminum oxynitride layer (96) with a desired thickness. Purge or evacuation steps may also be performed after each gas pulse.
Abstract:
A method for performing an oxidation process on a plurality of substrates in a batch processing system. According to one embodiment, the method includes selecting a N 2 O-based oxidation process for the substrates (16) including a first process gas containing N 2 O that thermally decomposes in a process chamber (12) of the batch processing system to N 2 , O 2 , and NO byproducts, and generating a replacement NO-based oxidation process for the substrates (16) including a second process gas containing N 2 , O 2 , and NO with molar concentrations that mimic that of the N 2 , O 2 , and NO byproducts in the N 2 O-based oxidation process. According to another embodiment of the invention, the NO-based oxidation process contains NO, O 2 , and an inert gas.
Abstract translation:一种在批处理系统中对多个基板进行氧化处理的方法。 根据一个实施方案,该方法包括选择用于基材(16)的基于N 2 O O的氧化工艺,所述方法包括含有N 2 O 3的第一工艺气体,所述第一工艺气体在 将分批处理系统的处理室(12)分配给N 2 O 2 O 2和NO副产物,并为基板(16)产生替代的基于NO的氧化工艺 ),其包括含有N 2 O 2 O 2的第二工艺气体和具有模拟N 2 O,O 2 <! - SIPO - >和在N 2 O基氧化方法中的NO副产物。 根据本发明的另一个实施方案,基于NO的氧化方法包含NO,O 2 H 2和惰性气体。
Abstract:
A method of monitoring a single-wafer processing system (100, 200, 300) in real-time using low-pressure based modeling techniques that include processing a wafer (W) in a processing chamber (50, 104, 202); determining a measured dynamic process response for a rate of change for a process parameter; executing a real-time dynamic model to generate a predicted dynamic process response; determining a dynamic estimation error using a difference between the predicted dynamic process response and the expected process response; and comparing the dynamic estimation error to operational limits.
Abstract:
A method and system for non-invasive sensing and monitoring of a processing system (100, 200) employed in semiconductor manufacturing. The method allows for detecting and diagnosing drift and failures in the processing system (100, 200) and taking the appropriate correcting measures. The method includes positioning at least one non-invasive sensor (247a-d, 248a-b, 249a-b, 250a-c, 906) on an outer surface of a system component of the processing system (200), where the at least one invasive sensor forms a wireless sensor network (902), acquiring a sensor signal from the at least one non-invasive sensor (247a-d, 248a-b, 249a-b, 250a-c, 906), where the sensor signal tracks a gradual or abrupt change in a processing state of the system component during flow of a process gas in contact with the system component, and extracting the sensor signal from the wireless sensor network (902) to store and process the sensor signal. In one embodiment, the non-invasive sensor (247a-d, 248a-b, 249a-b, 250a-c, 906) can be an accelerometer sensor and the wireless sensor network (902) can be motes-based.
Abstract:
A method and system is described for reducing particle contamination of a substrate (25) in a deposition system (1). The deposition system comprises one or more particle diffusers (47) disposed therein and configured to prevent or partially prevent the passage of film precursor particles, or break-up or partially break-up film precursor particles. The particle diffuser may be installed in the film precursor evaporation system (50), or the vapor delivery system (40), or the vapor distribution system (30), or two or more thereof.
Abstract:
A method and system is described for reducing particle contamination of a substrate (25) in a deposition system (1). The deposition system comprises one or more particle diffusers (47) disposed therein and configured to prevent or partially prevent the passage of film precursor particles, or break-up or partially break-up film precursor particles. The particle diffuser may be installed in the film precursor evaporation system (50), or the vapor delivery system (40), or the vapor distribution system (30), or two or more thereof.
Abstract:
A high conductance, multi-tray film precursor evaporation system (1 ) coupled with a high conductance vapor delivery system (40) is described for increasing deposition rate by increasing exposed surface area of film precursor. The multi-tray film precursor evaporation system (50) includes one or more trays (340). Each tray is configured to support and retain film precursor (350) in, for example, solid powder form or solid tablet form. Additionally, each tray is configured to provide for a high conductance flow of carrier gas over the film precursor while the film precursor is heated. For example, the carrier gas flows inward over the film precursor, and vertically upward through a flow channel (318) within the stackable trays and through an outlet (322) in the solid precursor evaporation system.
Abstract:
A capacitive plasma source (22) for iPVD is immersed in a strong local magnetic field (31) , and may be a drop-in replacement for an inductively coupled plasma (ICP) source of iPVD. The source includes an annular electrode (23) having a magnet pack (30) behind it that includes a surface magnet (33-35) generally parallel to the electrode surface with a magnetic field extending radially over the electrode surface. Side magnets, such as inner and outer annular ring magnets (36 and 32, respectively) , have polar axes that intersect the electrode with poles closest to the electrode of the same polarity as the adjacent pole of the surface magnet. A ferromagnetic back plate (37) or back magnet (37a) interconnects the back poles of the side magnets (32, 36) . A ferromagnetic shield (37b) behind the magnet pack (30) confines the field away (31) from the iPVD material source (21) .
Abstract:
A system and method affecting mass transport to reduce or eliminate iso-dense bias in spin-on-dielectric (SOD) or spin-on-glass (SOG) processes use a nozzle (25) to dispense the liquid dielectric and a separate nozzle (26) for jetting N2 or other gas onto a semiconductor wafer (10). The gas is jetted onto the wafer shortly after spin-on-dielectric liquid is dispensed. The jetting of the gas in the spin-coating process increases the volumetric flow of the liquid coating material in the radial direction, which in turn reduces the field thickness above isolated or no patterned areas to that at the more densely patterned areas, thereby improving the uniformity of the spun-on dielectric thickness on the wafer.