摘要:
A method and a device can be used for checking the layout of an electronic circuit of a semiconductor component. For example, the method includes an automatic classification of cells in at least one layout into a cell database, and an automatic layout checker comparing the cell database to a layout to be checked.
摘要:
A doped region is provided on a substrate. A plane with conductive useful structures and a conductive filler structure is arranged at the surface of the substrate. The conductive filler structure is conductively connected to the doped region. In this way, charging of the conductive filler structure, which is provided for improving the planarity of the circuit arrangement and has no circuit-oriented function, is avoided.
摘要:
A method for optimizing the geometry of structural elements of a circuit pattern involves providing an overall circuit pattern of the circuit design and a plurality of basic patterns. Subsequently, the circuit pattern of the circuit design is iteratively decomposed into corresponding basic patterns in order to classify those parts of the circuit pattern of the plurality of structural elements wherein there exists a match with the basic pattern. Subsequently, further basic patterns are determined for those parts of the circuit pattern which were not previously classified. After applying a specification for optimizing the geometry of the structural elements, the optimized basic patterns are inserted into the circuit design thus achieving an improvement of the optical imaging properties.
摘要:
In order to eliminate phase conflicts in alternating phase masks, the layout is modified after the phase conflicts have been localized. During the modification, degenerate critical structures, which fall below a minimum width and require phase-shifting regions for their adequate imaging, are widened, so that the phase-shifting regions directly adjoining the degenerate critical structures disappear. Moreover, interaction regions between phase-shifting regions can be eliminated by trimming masks, intermediate phases or shifting associated critical structures.
摘要:
A lithography mask has an angled structure element (O) formed by a first opaque segment (O1) and by a second opaque segment (O2). The structure element has at least one reflex angle (α). The angled structure element (O) includes at least one convex section (A) facing the reflex angle (α). At least one transparent structure (T) adjacent to the angled structure element (O) is provided at the convex section (A) of the angled structure element (O). The transparent structure (T) is formed in separated fashion at the convex section (A) of the angled structure element (O) and thus comprises two distinguishable transparent segments (T1, T2) formed at least in sections essentially axially symmetrically with respect to the angle bisector (WH) of the reflex angle.
摘要:
A photoresist layer on a substrate wafer is exposed in first sections with a first exposure radiation and in second sections with a second exposure radiation that is phase-shifted by 180°. The first and second sections adjoin one another in boundary regions in which the photoresist layer is artificially not sufficiently exposed. Where a distance between these boundary regions is smaller than a photolithographically critical, least distance, the photoresist layer is exposed, at a first boundary region, with a third exposure radiation and at a second boundary region with a fourth exposure radiation phase-shifted by 180°. A trim mask provided for the process has a first translucent region and a second translucent region. The first light-transparent region and the second light-transparent region are fashioned such that the light passing through the first light-transparent region and the light passing through the second light-transparent region has a phase displacement of 180°.
摘要:
A method for eliminating phase conflicts that occur in the layout of a phase mask in a localized and automated manner. The method includes a first step in which a set of phase conflicts is completely determined exclusively by using the technical requirements of the design. The first step is an optimum starting point for the following second step for automatically handling and eliminating such conflicts.
摘要:
Masks are produced for the fabrication of semiconductor structures based on layout data that has information for defining a mask layout with individual geometric structure elements. Layout data generated previously for a mask layout is checked to see whether geometric design requirements are satisfied. In the event of a violation of design requirements, the corresponding error locations in the mask layout are located. Further layout data are then generated, which contain information for defining correction figures to correct the respective error locations. The further layout data are linked with the layout data, so that the layout data are modified. This permits automated modification of the layout data and their technology-dependent optimization.