摘要:
A dynamic pattern display and optical data processing system is provided including magnetic bubble devices which may be operated in real-time to produce two and three dimensional patterns such as holograms, kinoform lenses and complex filters. Th display pattern is obtained by directing a linearly polarized light beam through a combination including a one-quarter waveplate, a plurality of two-dimensional magnetic bubble arrays and another one-quarter wave plate, all combined in a stack arrangement. In one embodiment a combination is provided which functions as a phase filter and in another embodiment including more bubble arrays, the combination functions as a phase and intensity filter. The display patterns are multi-phase or multi-tone (gray scale) and multi-phase in character. Each magnetic bubble array in the phase and phase and intensity filter embodiments constitutes a layer which differs in thickness from the other magnetic bubble layers. Each magnetic bubble array is also electronically driven by its own bubble propagating circuit which produces, in most embodiments, a different "local phase" or "local transmissivity" which is a function of whether a bubble or an empty space is propagated to the location. The number of levels of transmitted phase or intensity and phase is an exponential function of the number of magnetic bubble layers, thus n layers provides 2.sup.n steps of transmitted phase or intensity and phase modification and a four layer structure provides a sixteen level phase or phase and intensity display. The electronic portion of the structure may be driven by signals representing mathematical expressions, patterns, manual inputs and the like to generate holograms, kineform lenses, complex filters, three-dimensional television pictures, and other display and optical information processing applications.
摘要:
A method and material layer for forming a pattern are disclosed. The method includes providing a substrate; forming a first material layer over the substrate; forming a second material layer over the first material layer, wherein the second material layer comprises a photoacid generator and a photobase generator; and exposing one or more portions of the second material layer.
摘要:
A method of via patterning mask assignment for a via layer using double patterning technology, the method includes determining, using a processor, if a via of the via layer intercepts an underlying or overlaying metal structure assigned to a first metal mask. If the via intercepts the metal structure assigned to the first metal mask, assigning the via to a first via mask, wherein the first via mask aligns with the first metal mask. Otherwise, assigning the via to a second via mask, wherein the second via mask aligns with a second metal mask different from the first metal mask.
摘要:
A lithography apparatus includes an imaging lens module, a substrate table positioned underlying the imaging lens module and configured to hold a substrate, and a cleaning module adapted to clean the lithography apparatus. The cleaning module comprises one inlet and one outlet for providing a cleaning fluid to and from a portion of the lithography apparatus to be cleaned, and an ultrasonic unit configured to provide ultrasonic energy to the cleaning fluid.
摘要:
A method for fabricating an integrated circuit device is disclosed. The method includes providing a substrate; forming a first material layer over the substrate; forming a second material layer over the first material layer, wherein the second material layer comprises a photodegradable base material; and exposing at least a portion of the second material layer.
摘要:
A system for wafer repair, comprising an inspection tool being capable of extracting a wafer image of a semiconductor wafer; a direct-writing tool being capable of locally exposing the semiconductor wafer; and an information processing module configured to compare the wafer image with a reference image and generate data of locations and patterns of defective regions and communicate the data of locations and patterns of defective regions to the direct-writing tool, wherein the reference image comprises a pattern consisting of a scanned image of another die having no defective region.
摘要:
Immersion lithography apparatus and method using a shield module are provided. An immersion lithography apparatus including a lens module having an imaging lens, a substrate table positioned beneath the lens module and configured for holding a substrate for processing, a fluid module for providing an immersion fluid to a space between the lens module and the substrate on the substrate table, and a shield module for covering an edge of the substrate during processing.
摘要:
An apparatus for immersion lithography that includes an imaging lens which has a front surface, a fluid-containing wafer stage for supporting a wafer that has a top surface to be exposed positioned spaced-apart and juxtaposed to the front surface of the imaging lens, and a fluid that has a refractive index between about 1.0 and about 2.0 filling a gap formed in-between the front surface of the imaging lens and the top surface of the wafer. A method for immersion lithography can be carried out by flowing a fluid through a gap formed in-between the front surface of an imaging lens and a top surface of a wafer. The flow rate and temperature of the fluid can be controlled while particulate contaminants are filtered out by a filtering device.
摘要:
A lithography apparatus includes an imaging lens module; a substrate table positioned underlying the imaging lens module and configured to hold a substrate; and a cleaning module adapted to clean the lithography apparatus. The cleaning module is selected from the group consisting of an ultrasonic unit, a scrubber, a fluid jet, an electrostatic cleaner, and combinations thereof.
摘要:
Disclosed is an objective lens adapted for use in liquid immersion photolithography and a method for making such a lens. In one example, the objective lens has multiple lens elements, one of which includes a transparent substrate and a layer of anti-corrosion coating (ACC). The ACC is formed proximate to the transparent substrate and is positioned between a liquid used during the liquid immersion photolithography and the transparent substrate to protect the transparent substrate from the liquid.