摘要:
A multi-layer mirror includes on top of the multi-layer mirror a spectral purity enhancement layer, for example for application in an EUV lithographic apparatus. This spectral purity enhancement layer includes a first spectral purity enhancement layer, but between the multi-layer mirror and first spectral purity enhancement layer there may optionally be an intermediate layer or a second spectral purity enhancement layer and intermediate layer. Hence, multi-layer mirrors with the following configurations are possible: multi-layer mirror/first spectral purity enhancement layer; multi-layer mirror/intermediate layer/first spectral purity enhancement layer; and multi-layer mirror/second spectral purity enhancement layer/intermediate layer/first spectral purity enhancement layer. The spectral purity of normal incidence radiation may be enhanced, such that DUV radiation is diminished relatively stronger than EUV radiation.
摘要:
A device is arranged to measure a quantity relating to radiation. The device includes a sensor configured to measure the quantity, a screen arranged to protect the sensor from incoming particles emitted from a source configured to emit extreme ultraviolet radiation, and a mirror configured to redirect extreme ultraviolet radiation emitted by the source, past the screen, to the sensor.
摘要:
The present invention provides a luminescence sensor (2), such as e.g. a luminescence biosensor, comprising a multi-layer structure. The multi-layer structure comprises at least a first layer (2a) formed of a first material and a second layer (2b) formed of a second material. The first material has a first binding capacity towards luminophores and the second material has a second binding capacity towards luminophores, the first binding capacity being different from the second binding capacity. The luminescence sensor (2) according to the present invention shows a high sensitivity because it provides preferred binding sites for luminophores at locations where the combined excitation and detection efficiency is the highest.
摘要:
An EUV lithographic apparatus includes an EUV radiation source, an optical element and a cleaning device. The cleaning device includes a hydrogen radical source and a flow tube in communication with the hydrogen radical source. The cleaning device is configured to provide a flow of hydrogen radicals and the flow tube is arranged to provide a hydrogen radical flow at a predetermined position within the lithographic apparatus, for example for cleaning a collector mirror.
摘要:
A debris trapping system for trapping debris particles released with the generation of radiation by a radiation source in a lithographic apparatus includes first and second sets of channels. Each channel of the first set enables radiation from a radiating source to propagate therethrough and has an inner wall for catching debris particles. The second set of channels is situated downstream of the first set with respect to a propagation direction of the radiation. Each channel of the second set enables radiation from the radiating source to also propagate therethrough and has an inner wall for catching debris particles. A gas supply and a gas exhaust are configured to provide between the first set and the second set of channels a gas flow having a net flow direction substantially across the propagation direction of the radiation from a radiating source.
摘要:
A debris mitigation system for trapping contaminant material coming from a debris-generating radiation source. The system includes a contamination barrier constructed and arranged to rotate about an axis, and a magnet structure constructed and arranged to provide a magnetic field for deflecting charged debris from the radiation source. The magnet structure is constructed and arranged to provide a magnetic field through the contamination barrier. The magnetic field, when passing through the contamination barrier, is oriented along planes generally coinciding with the axis of rotation of the contamination barrier.
摘要:
A luminescence sensor, such as a luminescence biosensor or a luminescence chemical sensor, includes a substrate having at least one aperture filled with a medium. The aperture has a first lateral dimension larger than the diffraction limit of excitation radiation in the medium, and a second lateral dimension smaller than the diffraction limit of the excitation radiation in the medium. A method is also provided for the detection of luminescence radiation, e.g. fluorescence radiation, generated by at least one optically variable molecule, e.g. fluorophore, in the at least one aperture. Beneficially, the excitation radiation is polarized to suppress the excitation radiation in the apertures. The luminescence sensor and the method are able to detect relatively low concentrations of optically variable molecules, e.g. fluorophores.
摘要:
An EUV mask includes, on top of a multi-layer mirror, a spectral purity enhancement layer, for application in an EUV lithographic apparatus. On top of the spectral purity enhancement layer, a patterned absorber layer is provided. The spectral purity enhancement layer includes a first spectral purity enhancement layer, but between the multi-layer mirror and first spectral purity enhancement layer there may be an intermediate layer or a second spectral purity enhancement layer and intermediate layer. The patterned absorber layer may also itself function as an anti-reflection (AR) coating. The AR effect of this absorber layer is a function of the aperture sizes in the pattern. The spectral purity of a mask may be enhanced, such that DUV radiation is diminished relatively stronger than EUV radiation.
摘要:
The present invention provide a qualitative or quantitative luminescence sensor, for example a bio sensor or chemical sensor, using sub-wavelength aperture or slit structures, i.e. using apertures or slit structures having a smallest dimension smaller than the wavelength of the excitation radiation in the medium that fills the aperture or slit structure. The invention furthermore provides a method for the detection of luminescence radiation generated by one or more luminophores present in aperture or slit structure in such a luminescence sensor.
摘要:
An integrated biosensing device detects emissions from a sample when illuminated. A photo detector (20) is adjacent a site for retaining the sample (40) or receiving excitation radiation for impingement on the sample (40). A reflector (10) deflects the illumination onto the sample site and substantially guides the excitation radiation away from the photo detector. By providing a reflector, a ratio of desired detection of emissions to unwanted detection of the illumination light can be improved. This can be achieved by a reduction in an amount of the illumination reaching the photo detector, and/or by an increase in the amount of illumination of the sample and thus in the amount of emissions reaching the detector. This can be achieved more cost effectively than by using a filter. The illumination can be from above or below if the substrate is transparent.