Abstract:
PROBLEM TO BE SOLVED: To remove smearing residue in an immersion lithography system. SOLUTION: The equipment for cleaning a semiconductor substrate comprises a chamber having an upper portion, a sidewall and a bottom opening where the upper portion is transparent to light of selected wavelength, an inlet and an outlet provided in the sidewall of the chamber, a plate extending outward from the bottom edge of the chamber, a set of concentric grooves formed in the bottom face of the plate and centering on the chamber, a means for applying vacuum to first and fourth grooves closest to the bottom opening of the chamber in the set of grooves, a means for supplying inert gas or vapor mixture of inert gas and solvent to a second groove between the first and fourth grooves and a fifth groove on the outside of the fourth groove in the set of grooves, and a means for supplying cleaning fluid to a third groove between the second and fourth grooves in the set of grooves. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method and equipment in which the possibility of bringing immersion fluid from a clearance or other portion of a chuck onto the surface of a photoresist layer on a wafer is not high. SOLUTION: Equipment for holding a wafer and a method for immersion lithography. The equipment comprises a wafer chuck having a central circular vacuum platen, an outside region, and a circular groove centering on the vacuum platen. Upper surface of the vacuum platen is recessed below the upper surface of the outside region, and the layer surface of the groove is recessed below the upper part of the vacuum platen, one or more suction ports are provided in the lower surface of the groove, and a hollow toroidal bladder capable of expansion or contraction is arranged in the groove. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To form a narrow gate and a shallow expansion part by providing a layer (substrate) including one polysilicon gate and one source/drain region, and by simultaneously doping one gate stack and the source/drain region. SOLUTION: Vapor-phase doping is selectively used, and a polysilicon gate and an S/D region are simultaneously doped. Especially, a gate stack 20 and a well 18 that are not doped are covered with an appropriate diffusion prevention material 40. An S/D region 19 and a polysilicon gate 24 are exposed to n- and p-type gases or a doping source 30 of plasma. The gases can be variously changed corresponding to p and n types. For example, arsine AsH3 is used as arsenic trichloride AsCl3, phosphine PH3, and n-type gas dopant. When a masked laser beam is used, a diffusion prevention material 40 is eliminated, and reaction is repeated for the remaining stack 20 and the S/D region 19 by a type opposite to the doping source being used firstly.
Abstract:
PROBLEM TO BE SOLVED: To provide a carbon nanotube filter, a method for using the carbon nanotube filter and a method for forming the carbon nanotube filter. SOLUTION: This method is comprised of (a) a step for preparing a carbon source and a carbon nanaotube catalyst, (b) a step for growing the carbon nanotube by reacting the carbon source with the nanotube catalyst, (c) a step for chemically forming the active carbon nanotube by chemically forming an active layer on the carbon nanotube or by chemically forming a reactive medium on the side wall of the carbon nanotube and (d) a step for arranging the chemically active nanotube in a filter housing. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To obtain a built-in strap structure which makes a device transfer gate longer in length by the use of a smaller cell region by a method wherein the inside of a storage trench is connected to the rear of an array transfer device, and the strap is arranged in a region which is used only for isolation. SOLUTION: An empty region inside a shallow trench isolation region 82 for a built-in strap which avoids a deep trench collar is used. The layout of a built-in strap indicated by an arrow 80 is carried out in a shallow trench isolation region 82. A space inside a transfer gate 84 between deep trenches 86 is not affected by the built-in strap. By this setup, a built-in strap structure which gives a longer device transfer gate length by the use of a smaller cell region can be obtained.
Abstract:
PROBLEM TO BE SOLVED: To provide an improved method of forming a filled isolation region of a semiconductor substrate, and to provide a method of forming a semiconductor device, having the filled isolation region and cooling the device and giving body potential control. SOLUTION: A semiconductor structure and a method of forming the semiconductor structure are disclosed. The semiconductor structure includes a nanostructure or is manufactured by using the nanostructure. The method of forming the semiconductor structure includes the steps of generating the nanostructure, by using a nano mask and performing an additional semiconductor processing step by using the nanostructure thus generated. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a new structure and a new method for monitoring an operation of an acting integrated circuit in operation. SOLUTION: This invention relates to a method and a structure of an integrated circuit provided with a first transistor and an embeded carbon nanotube field effect transistor (CNT FET) which is adjacent to and smaller than the first transistor. The CNT FET is used for sensing a signal containing any of a temperature signal, a voltage signal, a current signal, an electric field signal and a magnetic field signal from the first transistor. Furthermore, the CNT FET is used for measuring a stress and a distortion in the integrated circuit containing any of a mechanical stress and a mechanical distortion as well as a thermal stress and a thermal distortion. Furthermore, the CNT FET is used for detecting a defective circuit in the integrated circuit. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for forming a field effect transistor having a channel length controlled favorably by applying a carbon nanotube. SOLUTION: The field effect transistor employs the vertically oriented carbon nanotube as a transistor body, the carbon nanotube being formed by deposition within a vertical aperture, with an optional combination of several parallel nanotubes to produce quantized current drive, and an optional change in a chemical composition of a carbon material at the top or at the bottom to suppress short channel effect. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a system for effectively separating the reactivity of a gaseous phase reactant and the chemical reaction of a wafer surface. SOLUTION: A processing system, based on previously loaded plasma, is provided with a preliminary reaction plasma processing chamber, a power source connected to the preliminary reaction plasma processing chamber so as to drive the chamber and a wafer plasma processing chamber connected to the preliminary reaction plasma processing chamber through fluid. The preliminary reaction plasma processing chamber is constituted so as to generate reaction radicals, by subjecting to chemical reaction based on the plasma of a reaction substance. The wafer plasma processing chamber is constituted so as to allow reaction radicals to react with the seeds on the surface of a wafer arranged in the wafer plasma processing chamber. Another example includes a method for processing a wafer in a plasma environment, pre-loading a reactive gaseous flow and previously preventing the erosion of a wafer mask or an etching stop layer. COPYRIGHT: (C)2004,JPO&NCIPI