摘要:
An inspection system serves to qualify semiconductor structures. The inspection system has an ion beam source for space-resolved exposition of the structures to be qualified with an ion beam. The inspection system also includes a secondary ion detection device with a mass spectrometer. The mass spectrometer is configured to measure an ion mass to charge ratio in a given bandwidth.
摘要:
Disclosed is a charged particle beam system comprising a charged particle beam column having a charged particle source forming a charged particle beam, an objective lens and a first deflection system for changing a position of impingement of the charged particle beam in a sample plane. The system further comprises a sample chamber comprising a sample stage for holding a sample to be processed, and a controller configured to create and store a height map of a sample surface. The controller is further configured to dynamically adjust the objective lens of the charged particle beam in dependence on a position of impingement of the charged particle beam according to the height map.
摘要:
The present disclosure relates to a gas field ion source comprising a housing, an electrically conductive tip arranged within the housing, a gas supply for supplying one or more gases to the housing, wherein the one or more gases comprise neon or a noble gas with atoms having a mass larger than neon, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole. A surface of the extractor electrode facing the tip can be made of a material having a negative secondary ion sputter rate of less than 10−5 per incident neon ion.
摘要:
In general, in one aspect, the disclosure features a method and system for imaging of samples, for example, imaging samples with charged particles.
摘要:
The disclosure relates to sample inspection using an ion-beam microscope. In some embodiments, the disclosure involves the use of multiple detectors, each of which provides different information about a sample.
摘要:
Disclosed are systems and methods for applying a voltage gradient to a gas delivery system, delivering a gas through a length of the gas delivery system having the voltage gradient, the gas having a pressure-distance product of less than about 1×10−2 Torr-inches or greater than about 100 Torr-inches, and delivering the gas into a housing of an ion microscope, the housing including an emitter and an extractor.
摘要:
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.
摘要:
The present disclosure relates to a gas field ion source comprising a housing, an electrically conductive tip arranged within the housing, a gas supply for supplying one or more gases to the housing, wherein the one or more gases comprise neon or a noble gas with atoms having a mass larger than neon, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole. A surface of the extractor electrode facing the tip can be made of a material having a negative secondary ion sputter rate of less than 10−5 per incident neon ion.
摘要:
The present disclosure relates to a gas field ion source having a gun housing, an electrically conductive gun can base attached to the gun housing, an inner tube mounted to the gun can base, the inner tube being made of an electrically isolating ceramic, an electrically conductive tip attached to the inner tube, an outer tube mounted to the gun can base, the outer tube being made of an electrically isolating ceramic, and an extractor electrode attached to the outer tube. The extractor electrode can have an opening for the passage of ions generated in proximity to the electrically conductive tip.
摘要:
The disclosure relates to a method of operating a gas field ion beam system in which the gas field ion beam system comprises an external housing, an internal housing, arranged within the external housing, an electrically conductive tip arranged within the internal housing, a gas supply for supplying one or more gases to the internal housing, the gas supply having a tube terminating within the internal housing, and an extractor electrode having a hole to permit ions generated in the neighborhood of the tip to pass through the hole into the external housing. The method comprises the step of regularly heating the external housing, the internal housing, the electrically conductive tip, the tube and the extractor electrode to a temperature of above 100° C.