Abstract:
PROBLEM TO BE SOLVED: To provide an alignment system enabling measurement and modeling of an asymmetrical target, special design and/or delicate adjustment of a target geometry (geometric structure) in order to correct drawbacks of the conventional method. SOLUTION: By forming one or more sub-targets on an alignment target, the alignment target is made to have a geometry design. An alignment system aligns one or all the plurality of sub-targets. An algorithm is used for characterizing process and calculating alignment of the alignment system. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system that can more quickly change a pattern at a lower cost, as compared with a mask base system. SOLUTION: The tilt and position of individually controllable element becomes simultaneously adjustable and allows a wider range of contrasts to be achieved. This can also be used to compensate for cupping of individually controllable elements. Simultaneous adjustment of both the position and the tilt of the individually controllable elements can be attained by two electrodes which are operable over a range of values. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an alignment system that enables measurement and modeling of an asymmetrical target for solving defects of the prior art, and special design and/or fine tuning of a target geometry (geometrical structure). SOLUTION: By forming one or more sub-targets on an alignment target, the alignment target is given a geometrical design, an alignment system is used to conduct alignment across one or more sub-targets, and an algorithm is used for process characterization and alignment calculation of the alignment system. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an interfering lithography projector which has a capability of printing a plurality of patterns. SOLUTION: The lithography projector comprises a lighting system, a replaceable upper optical module, and a lower optical module 208. The lighting system emits radiation beams 106A, 106B. The replaceable upper optical module includes a beam splitter 104 which receives a beam and splits the beam into a plurality of portions, an aperture plate 206, and a plurality of reflection surfaces. The lower optical module 208 receives the plurality of portions of the beam from respective reflection surfaces, and directs the portions of the beam toward the surface of a board. As a result, interference fringes or contact hole patterns are formed on the board using the portions of the beam. COPYRIGHT: (C)2007,JPO&INPIT