摘要:
The present invention relates to a method for improving focusing in an electron column that generates an electron beam. The method for controlling the focusing of an electron beam in according to the present invention reduces the spot size of the electron beam when the electron beam reaches a specimen, so that resolution can be increased and the line width of a pattern in a semiconductor lithography process can be reduced, with the result that the performance of the electron can be improved.
摘要:
The present invention relates to a method for improving focusing in an electron column that generates an electron beam. The method for controlling the focusing of an electron beam in according to the present invention reduces the spot size of the electron beam when the electron beam reaches a specimen, so that resolution can be increased and the line width of a pattern in a semiconductor lithography process can be reduced, with the result that the performance of the electron can be improved.
摘要:
Disclosed is an electrostatic quadrupole deflector for a microcolumn. The deflector includes an electron beam passage hole, deflecting electrodes to which a deflection voltage is applied, and floating electrodes to which the deflection voltage is not applied. The deflector is structurally stable and has a simple driving system. The deflector has good performance and characteristics.
摘要:
Disclosed herein is a multi-particle beam column including electrode layer with eccentric apertures. The multi-particle beam column includes two or more particle beam columns each comprising a particle beam emission source, a deflector, and two or more electrode layers. The multi-particle beam column includes at least one electrode layer having one or more apertures that are eccentric from respective beam optical axes of the particle beam columns.
摘要:
Disclosed herein is a multi-particle beam column including electrode layer with eccentric apertures. The multi-particle beam column includes two or more particle beam columns each comprising a particle beam emission source, a deflector, and two or more electrode layers. The multi-particle beam column includes at least one electrode layer having one or more apertures that are eccentric from respective beam optical axes of the particle beam columns.
摘要:
The present invention relates, in general, to a deflector for microcolumns for generating electron beams, and, more particularly, to a deflector capable of scanning or shifting electron beams or functioning as a stigmator using a magnetic field. The deflector (100) according to the present invention includes one or more deflector electrodes. Each of the deflector electrodes includes a core (12) made of a conductor or a semiconductor, and a coil (11) wound around the core (12).
摘要:
The present invention relates, in general, to a deflector for microcolumns for generating electron beams, and, more particularly, to a deflector capable of scanning or shifting electron beams or functioning as a stigmator using a magnetic field. The deflector (100) according to the present invention includes one or more deflector electrodes. Each of the deflector electrodes includes a core (12) made of a conductor or a semiconductor, and a coil (11) wound around the core (12).
摘要:
Provided is a portable electron microscope using a microcolumn. The portable electron microscope includes a microcolumn, a low vacuum pump, a high vacuum pump, an ultra-high vacuum ion pump, a first chamber for receiving and fixing the microcolumn and a sample to be measured and forming a vacuum by means of the pumps, a controller, and a case for receiving the pumps, the chamber and the controller.
摘要:
Provided is a scanning field emission display (SFED). The SFED includes an electron emitter and a module for inducing electron emission of the electron emitter and deflecting an electron beam. A multi-SFED may be realized as a large-sized thin and flat display by arranging in an n×m array.
摘要:
Disclosed is a device for sustaining different vacuum degrees for an electron column, including an electron emitter, a lens part, and a housing for securing them, to maintain the electron column and a sample under different vacuum degrees. The device comprises a column housing coupling part coupled to the housing to isolate a vacuum; a hollow part defined through the center portion of the device to allow an electron beam emitted from the electron column to pass therethrough; and a vacuum isolation part having a structure of a gasket for vacuum coupling, wherein a difference of no less than 10 torr in a vacuum degree is maintained between both sides of the device by selecting an appropriate diameter of a lens electrode layer which is finally positioned in a path along which the electron beam is emitted or by using the hollow part.