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.
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 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:
Method for processing at least one spacer structure in a manufacturing process of a semiconductor device, wherein the at least one spacer structure is subjected to at least one etch process step with an isotropic component and the spacer structure comprises at least one point on the surface with a large solid angle opening towards the environment. Method of manufacturing an integrated circuit, including a regional removal of a spacer structure, wherein the removal is determined by a pattern density in the vicinity of the spacer structure.
摘要:
An alternating phase mask having a branched structure containing two opaque segments is described. Two transparent surface segments are disposed on both sides of the segments or the components thereof, respectively. The surface segments are provided with phases that are displaced by 180°±&Dgr; &agr;, whereby &Dgr; &agr; a is not more than 25°. The surface segments are separated by at least one transparent surface boundary segment whose phase is situated between the phases of the adjacent surface segments.
摘要:
A method of fabricating an integrated circuit, including the steps of forming a first mask layer in the form of a hard mask layer including a plurality of first openings and a second mask layer with at least one second opening which at least partially overlaps with one of the first openings, wherein the at least one second opening is generated lithographically; and at least two neighboring first openings are distanced from each other with a center to center pitch smaller than the resolution limit of the lithography used for generating the second opening.
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 layout cell includes layout cell information including information about at least one component, and a layout cell identifier identifying the layout cell. The layout cell identifier includes geometrical information about the layout cell.
摘要:
A method is used to check the direct convertibility of integrated semiconductor circuits into alternating phase masks. This is done by explicitly localizing the phase conflicts occurring in the corresponding layout while solely using the technological requirements made of the design. The set of phase conflicts determined with the aid of this formalism is complete and minimal and thus proves to be an optimum starting point for methods for handling conflicts of this type.
摘要:
A layout of an integrated electrical circuit on a memory unit of a computer system includes one or more instantiations of at least one circuit network description as well as information about the instantiations. A raw data structure represents the logical configuration of the layout and associates each instantiation with one, and only one, polygon data structure. A modified data structure is produced to represent the layout, which associates a circuit network description with one, and only one, polygon data structure, wherein the geometrical differences between the instantiations of this circuit network description are taken into account by variants in the polygon data structure.