Abstract:
An ionic liquid ion source can include a microfabricated body including a base and a tip. The body can be formed of a porous material compatible with at least one of an ionic liquid or room-temperature molten salt. The body can have a pore size gradient that decreases from the base of the body to the tip of the body, such that the at least one of an ionic liquid or room-temperature molten salt is capable of being transported through capillarity from the base to the tip.
Abstract:
The disclosure relates to ion beams systems, such as gas field ion microscopes, having multiple modes of operation, as well as related methods. In some embodiments, the disclosure provides a method of operating a gas field ion microscope system that includes a gas field ion source, where the gas field ion source includes a tip including a plurality of atoms.
Abstract:
A processing method using a plasma ion source for generating a focused ion beam, characterized by covering, with an insulator, an inner wall of a plasma holding vessel excluding a reference electrode for applying a voltage to a plasma and an ion extraction electrode for extracting ions from the plasma, and employing means of continuously controlling the absolute value of an ion beam current in a range of from 1 to 10 .mu.A by changing the absolute value of an ion extraction voltage applied between the reference electrode and the ion extraction electrode in a range of from 0 to 100 V; and an apparatus for carrying out the processing method. This is advantageous in stabilizing the ion beam current and in preventing the ion beam from being made dim even when the current value of the ion beam is changed.
Abstract:
A processing method and a processing apparatus realizing the method use a focused ion beam generator. The apparatus includes a plasma or liquid metal ion source producing ions not influencing electric characteristics of a sample, an ion beam generator for extracting ions from the ion source into an ion beam, an ion beam focusing device for focusing the ion beam, an irradiator for irradiating the focused ion beam onto the sample, and a sample chamber in which the sample to be irradiated for processing is installed. The focused ion beam is irradiated onto a sample such as a silicon wafer or device to conduct on a particular position of the sample a fine machining work, a fine layer accumulation, and an analysis.
Abstract:
A solid electrolyte ion source has an emitting tip which is small enough to concentrate an elecric field from an extraction plate and thereby significantly increase the extracted current density compared to prior solid electrolyte sources. The source is heated to a temperature sufficient to induce a thermionic ion emission from the tip. The ion emission can be varied independent of the extraction field by varying the degree of heating, thereby preserving a constant focused ion beam spot size during changes of beam brightness. The tip preferably has a radius in the approximate range of 1-10 microns. The source can be used for ion-microprobe surface analysis and micro-circuit fabrication applications previously unavailable with solid electrolyte sources.
Abstract:
본 발명은 금속팁을 포함하는 입자빔 소스; 상기 입자빔 소스로부터 집속된 입자빔을 수신하고, 이로부터 2차전자를 방출하는 마이크로채널 플레이트; 상기 마이크로채널 플레이트로부터 생성된 2차전자를 수신하고 이를 광신호로 변환하는 형광스크린; 상기 형광스크린으로부터 방출되는 광 데이터를 수집하는 영상수집장치; 및 상기 영상수집장치로부터 얻어지는 데이터를 처리하여 영상화하며, 상기 마이크로채널 플레이트로부터 기인하는 잡음을 제거하기 위해 공간 영역(spatial domain)에서 구현되는 저주파 통과필터(low pass filter)를 포함하여 이루어지는 영상처리장치;를 포함하는, 입자빔의 방출 이미지 획득 장치 및 이를 이용하여 입자빔의 방출 이미지를 획득하는 방법에 관한 것이다.
Abstract:
The disclosure relates to ion beams systems, such as gas field ion microscopes, having multiple modes of operation, as well as related methods. In some embodiments, the disclosure provides a method of operating a gas field ion microscope system that includes a gas field ion source, where the gas field ion source includes a tip including a plurality of atoms. The method can include operating the gas field ion microscope system in a first mode including interacting a first ion beam with a sample, where at least about 80% of the ions in the first ion beam are generated by a first number of atoms of the plurality of atoms of the tip. The method can also include operating the gas field ion microscope system in a second mode in a second mode including interacting a second ion beam with the sample, where at least about 80% of the ions in the second ion beam are generated by a second number of atoms of the plurality of atoms of the tip. The first mode is different from the second mode, and the first number of atoms is different from the second number of atoms.
Abstract:
An ionic liquid ion source can include a microfabricated body including a base and a tip. The body can be formed of a porous material compatible with at least one of an ionic liquid or room-temperature molten salt. The body can have a pore size gradient that decreases from the base of the body to the tip of the body, such that the at least one of an ionic liquid or room-temperature molten salt is capable of being transported through capillarity from the base to the tip.