摘要:
A lithographic apparatus includes an illumination system configured to condition a radiation beam. The illumination system includes a pulsed source of radiation and a controller to control an output of the pulsed source of radiation. The controller includes a dose sensor to measure a dose of a pulse of the source of radiation. The dose sensor includes a dose sensor output to provide a dose signal representative of the measured dose. An integrator unit is connected to the dose sensor output. The integrator unit integrates the dose signal at least twice, an output of the integrator unit provides an integrator output signal including the at least twice integrated dose signal. The output of the integrator unit drives a driving input of the source of radiation with the integrator output signal.
摘要:
A double processing technique for device manufacture is disclosed that includes performing a first patterning step to form apertures in a resist layer which apertures are filled before the first resist layer is stripped and replaced by a second resist layer to be used in the second exposure. In an embodiment, a lithographic cell includes an integrated fill and/or strip unit and may be used to perform the above technique.
摘要:
A lithographic apparatus arranged to transfer a pattern from a patterning device onto a substrate. The lithographic apparatus is provided with an alignment system for aligning the patterning device with the substrate. The patterning device includes a proximity mark with a number of adjacent proximity structures, each proximity structure including a space structure, a reference structure, and a test structure. The reference structure includes a first number of lines at a reference pitch, and the test structure includes a second number of lines at a test pitch. The patterning device may be used to perform proximity matching using the alignment system, or to perform further quality measurements, such as dose-to-size.
摘要:
The invention relates to a lithographic apparatus, a device manufacturing method and a device thus manufactured. The lithographic apparatus is of the scanning type, in which a target portion of a substrate is scanned through a patterned radiation beam. Inhomogeneities in the radiation beam may become visible in the form of stripes on the substrate. By imparting an additional movement to the substrate table and optionally to the patterning device of the apparatus, during scanning, in a direction at an angle with the scanning movement, such inhomogeneities are smeared out, and the overall homogeneity of the illumination may be improved.
摘要:
A lithographic apparatus includes an illumination system configured to provide a radiation beam; a patterning device configured to pattern the radiation beam to form a patterned radiation beam; and a projection system configured to project the patterned radiation beam onto a substrate. An optical assembly includes multiple optical elements two-dimensionally arranged between a radiation source and the patterning device to create a predetermined angular distribution of the radiation beam. In order to improve the uniformity of the radiation beam the optical elements are selected from a predetermined number of optical elements having different shapes and/or sizes.
摘要:
A rework station and a metrology device(s) are incorporated into a lithographic processing cell so that a faulty substrate can be reworked directly and reprocessed without, for example, an overhead involved in changing masks, etc.
摘要:
A lithographic apparatus according to one embodiment of the invention includes an alignment subsystem configured to align the substrate on the substrate table relative to the patterning structure. The alignment structure comprises a non-periodic feature which may be detectable as e.g. a capture position or a check position using a reference grating in the alignment subsystem. The non-periodic feature may cause a phase effect in the detected signal of the alignment subsystem or an amplitude effect.