Abstract:
PROBLEM TO BE SOLVED: To provide a door plate used in a semiconductor treatment that depends on process gases. SOLUTION: The process chamber of a vertical furnace is provided with a closure, or door, comprising an upper and a lower door plates. The upper door plate has a gas exhaust opening close to its center, thereby allowing for a symmetrical flow of process gases via the process chamber and into the gas exhaust opening. The upper door plate is spaced from the lower door plate to form a sealing chamber purged with an inert gas. Optionally, both the gas exhaust opening and the sealing chamber empty into a gas exhaust channel formed inside the upper door plate. The gas exhaust channel leads to an exhaust which exhausts gases from the furnace and separates the flow path of corrosive process gases from surfaces of the lower door plate, which may be formed of a metal that is relatively easily-corroded. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an image pick-up system equipped with a picture sensor for collecting the information of wafer in a cassette. SOLUTION: The wafer in the cassette is mapped without necessity to open the cassette. The cassette is at least partially transparent to a special type of radiation. Radiation source is oriented inside the cassette through the transparent or translucent portion of the cassette, and the picture sensor, sensitive to the above-mentioned radiation, detects the radiation reflected off the wafer in the cassette. A second radiation source and a second camera preferably provide additional pictures of the wafers from different angle. The specific direction of the wafer and the loading status of the cassette are judged by processing these pictures. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To form a silicide film with a uniform resistance. SOLUTION: This method is a processing method of a semiconductor wafer 180. The method comprises a step of mounting the semiconductor wafer provided with a metal film 165 which is in contact with silicon 190 at least on some zones of the wafer, on an annealing station, a step of holding the wafer at a silicification temperature, for a sufficient time for producing silicide 170 by uniformly heating the wafer at the silicification temperature and by reacting some metal with silicon, and a step of taking out the wafer from the annealing station, before all the metal at least on the some zones in the wafer reacts with the silicon. COPYRIGHT: (C)2005,JPO&NCIPI