Abstract:
PROBLEM TO BE SOLVED: To provide a for a focused electrically-charged particle beam working method for realizing the formation of a fine three-dimensional structure near a designed shape as well as a focused electrically-charged particle beam device for realizing it by reducing the effects of etching and a deposition phenomenon varying in accordance with several conditions at the time of carrying out the working. SOLUTION: The three-dimensional microstructure manufacturing method is that a trial production structure is made by performing temporary working based on the data of the three-dimensionally designed shape data of the three-dimensional structure, by comparing the shape of the trial production structure with the above design shape and then this working is performed, compensating the working conditions so that the difference may be corrected under the control of the working conditions of the acceleration voltage of the electrically-charged particle, a beam current, scanning velocity, dot pitch values and dot latency time. The three-dimensionally designed shape data of the three-dimensional structure is used to seek a plurality of a two-dimensional shape data by a differential calculus using a CAD data, the working is carried out by controlling the irradiation position of the electrically-charged particle beam based on the plurality of the two-dimensional shape data. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a conditioning treatment method and device of an electron gun in which a voltage resisting property of an electron gun is improved in a simple way by removing efficiently and effectively an electric discharging factor existing on the surface of an electrode or an insulator composing the electron gun. SOLUTION: The electron gun conditioning treatment device 10 is provided with a voltage supply part 11, a voltage adjusting part 12 to adjust an output voltage of the voltage supply part 11 and a current detecting part 13 to detect a leakage current flowing between electrodes of the electron gun. And, there are provided a vacuum exhausting part 15 to adjust the inside of the electron gun in a reduced pressure condition and a voltage detecting part 16. And, a personal computer, for instance, makes a data processing base on a comparison between a leakage current detected by the current detecting part 13 and a standard value and controls a voltage impressed between electrodes through a connection part 14 from the voltage supply part 11 by the voltage adjusting part 12. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an LINAC improved by utilizing direct digital synthesis (DDS) techniques to obtain precise frequency and phase control and automated electrode voltage phase calibration; and to provide an HE ion implantation system using it. SOLUTION: A DDS controller 130 may be used on an implantation process using a multi-stage linear accelerator to synchronize the frequency and phase of the electric fields to each electrode within each stage of the accelerator. The DDS controller includes digital phase synthesis (DPS) circuits 138 for modulating the phase of the electric field to the electrodes, and a master oscillator that uses digital frequency synthesis or DFS 134 to digitally synthesize a master frequency and a master phase applied to each of the DPS circuits. This method for automatically calibrating phase and amplitude of the RF electrode voltage of each stage is provided as well. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an ion implantation simulation device for computing an ion concentration distribution accurately at a high speed by incorporating a beam dispersion phenomenon of an ion implantation process imparting an important affection to characteristics of an advanced semiconductor device. SOLUTION: The ion implantation simulation device comprises a beam dispersion approximate function memory 121 for storing a beam dispersion approximate function approximating ion beam dispersion indicative of the spreading of an ion beam using a predetermined function; a beam intensity computation part 131 for computing region surface beam intensity indicative of the intensity of an ion beam on an implantation region surface indicative of the surface of a predetermined region of a device implanted with ions with the ion beam, on the basis of the beam dispersion approximate function stored in the beam dispersion approximate function memory 121; and an ion concentration distribution computation part 132 for computing the concentration distribution of ions implanted into the device by an ion beam from an implantation region surface using region surface beam intensity computed by the beam intensity computation part 131. COPYRIGHT: (C)2005,JPO&NCIPI