Abstract:
PROBLEM TO BE SOLVED: To provide a process chamber to endure high-temperature and low-pressure processes and to improve wafer temperature uniformity and gas flow performance. SOLUTION: The chamber has a vertical lenticular cross section with a wide horizontal dimension and a short vertical dimension between convex upper and lower walls 12, 14. A central horizontal support plate 40 is provided between two lateral side rails 16, 18. The support plate segregates the process chamber into an upper region and a lower region 66, 68, with a purge gas being introduced through a lower tube into the lower region to prevent an unwanted deposition therein. A temperature compensation ring surrounds a susceptor and is formed with a material to absorb heat with higher efficiency than a chamber wall. A gas injector includes a plurality of independently controlled channels disposed laterally across the chamber, and the channels are merged into one at an outlet of the injector to allow mixing of adjacent longitudinal edges of separate flows well before reaching a wafer. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an atomic layer deposition (ALD) process for forming a silicon dioxide thin film at low temperature. SOLUTION: In some embodiments, a substrate is alternately and sequentially brought into contact with a metal precursor such as trimethyl aluminum, and a silanol such as a TPS, at 200°C less. This method can be used to form silicon dioxide films in various situations. In some embodiments, the method includes processes of: forming only a generally-single molecule layer of a metal precursor on a substrate by providing pulses of a vapor-phase reactant including the metal precursor in a reactant chamber; removing an excessive reactant from the reactant chamber if needed; providing pulses of a vapor-phase reactant including a TPS in the reactant chamber; and removing an excessive TPS and an optional reaction by-product from the reactant chamber. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of fabricating a high-k gate insulating film and a silicon oxide film on the high-k gate insulating film whereby a defect and trapping are avoided that cause a short circuit between doped silicon gates on the high-k gate insulating film. SOLUTION: The method for forming an integrated circuit configuration on a semiconductor substrate includes deposition of the high-k gate insulating material on the substrate by using an atomic layer deposition process. A silicon oxide capping layer is deposited on the gate insulating material in a fast and thermochemical deposition process. A gate electrode is formed on the silicon oxide capping layer. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
An improved thermocouple assembly for providing a temperature measurement is provided. The thermocouple assembly includes a sheath having a measuring tip, a support member received within the sheath, and first and second wires disposed within the support member. An end of each of the first and second wires are fused together to form a thermocouple junction therebetween. A recessed region is formed in a distal end of the support member, and the thermocouple junction is fixedly located at the base of the recessed region such that the recessed region maintains the thermocouple junction in a substantially fixed position relative to the measuring tip of the sheath.
Abstract:
PROBLEM TO BE SOLVED: To provide a vapor deposition method wherein an ALD gives superior conformality, film formation speed, and uniformity in comparison with a CVD. SOLUTION: A plurality of sequential steps 140 are conducted in a reaction chamber in order to form ultra high quality silicon-containing compound layers including silicon nitride layers. In a preferred embodiment, a silicon layer is deposited on a substrate using trisilane as a silicon precursor 100. The silicon precursor is removed from the reaction chamber 110. A silicon nitride layer is then formed by nitriding the silicon layer 120. A nitrogen reactant is removed from the reaction chamber 110. By repeating these steps 100, 110, 120 and 130, a silicon nitride layer of a desired thickness is formed. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To dissolve problems on the manufacture of a Si containing film. SOLUTION: A silicon alloy and doped silicon film are prepared by an ion implanting method using a chemical precursor containing Si as the supply source of the atom of group III and group V. The dopant contains (H 3 Si) 3-x MR x , (H 3 Si) 3 N, or (H 3 Si) 4 N 2 , wherein R is H or D, x is 0, 1 or 2, and M is selected from a group containing B, P, As, and Sb. A crystalline film, hydrogen non-doped silicon alloy film and doped silicon film are formed by a preferable ion implanting method. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of controllably forming a conductive tantalum nitride film. SOLUTION: The method of forming a tantalum nitride film comprises a step of sequentially bringing alternating pulses of a tantalum source substance, a plasma-excited species of hydrogen and a nitrogen source substance into contact with a substrate in a reaction space. The plasma-excited species of hydrogen reduce the oxidized state of tantalum, thereby yielding a substantially conductive tantalum nitride film on the substrate. In some embodiments, the plasma-excited species of hydrogen react with halogenated residues within the formed metal film to remove the residues from the film. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gas injector capable of optimizing the setting of a plurality of injectors for each individual step, process, and/or stage in the working recipe of substrate treatment. SOLUTION: A substrate treatment device has computer controlled injectors (18A to 18E). A computer (22) is configured so as to adjust a plurality of the injectors (18A to 18E) during the deposition of a graded layer between depositions of two different layers, or between deposition and reaction chamber clean steps. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an improving method for incorporating nitrogen for forming a nitrogen-contained material. SOLUTION: A semiconductor working method comprises a step for providing a single substrate reaction chamber which is gas-communicated with a supply source of NH 3 and gas-communicated with an excited species generator, a step for providing a semiconductor substrate in the reaction chamber, a step for generating excited species in the excited species generator, a step for exposing the NH 3 to the excited species at upstream of the substrate and downstream of the excited species generator, and a step for exposing the substrate to the NH 3 and the excited species after exposing the NH 3 to the excited species. COPYRIGHT: (C)2006,JPO&NCIPI