Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device for determining priority values about threads for execution on a multithread processor system. SOLUTION: The priority values depending on priority-based rating and application priority rating are determined. The priority-based rating represents priority rating of a thread to other threads. The application priority rating represents the priority rating of the threads viewed from an application of the thread. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
The present invention provides a lithographic difficulty metric that is a function of an energy ratio factor that includes a ratio of hard-to-print energy to easy-to-print energy of the diffraction orders along an angular coordinate i{ of spatial frequency space, an energy entropy factor comprising energy entropy of said diffraction orders along said angular coordinate ft, a phase entropy factor comprising phase entropy of said diffraction orders along said angular coordinate 6,, and a total energy entropy factor comprising total energy entropy of said diffraction orders (430, 440). The hard-to-print energy includes energy of the diffraction orders at values of the normalized radial coordinates r of spatial frequency space in a neighborhood of r=0 and in a neighborhood of r=l, and the easy-to-print energy includes energy of the diffraction orders located at intermediate values of normalized radial coordinates r between the neighborhood of r=0 and the neighborhood of r=l. The value of the lithographic difficulty metric may be used to identify patterns in a design layout that are binding patterns in an optimization computation. The lithographic difficulty metric may be used to design integrated circuits that have good, relatively easy-to-print characteristics.
Abstract:
The present invention provides a lithographic difficulty metric that is a function of an energy ratio factor that includes a ratio of hard-to-print energy to easy-to-print energy of the diffraction orders along an angular coordinate i{ of spatial frequency space, an energy entropy factor comprising energy entropy of said diffraction orders along said angular coordinate ft, a phase entropy factor comprising phase entropy of said diffraction orders along said angular coordinate 6,, and a total energy entropy factor comprising total energy entropy of said diffraction orders (430, 440). The hard-to-print energy includes energy of the diffraction orders at values of the normalized radial coordinates r of spatial frequency space in a neighborhood of r=0 and in a neighborhood of r=l, and the easy-to-print energy includes energy of the diffraction orders located at intermediate values of normalized radial coordinates r between the neighborhood of r=0 and the neighborhood of r=l. The value of the lithographic difficulty metric may be used to identify patterns in a design layout that are binding patterns in an optimization computation. The lithographic difficulty metric may be used to design integrated circuits that have good, relatively easy-to-print characteristics.
Abstract:
Die vorliegende Erfindung stellt eine Lithografie-Schwierigkeitsmessgröße bereit, bei der es sich um eine Funktion des Energieverhältnisfaktors handelt, der aufweist: ein Verhältnis der ”schwierig zu drucken”-Energie zur ”einfach zu drucken”-Energie der Beugungsordnungen entlang einer Winkelkoordinate i{ des Ortsfrequenzraums, einen Energieentropiefaktor, der die Energieentropie der Beugungsordnungen entlang der Winkelkoordinate ft aufweist, einen Phasenentropiefaktor, der die Phasenentropie der Beugungsordnungen entlang der Winkelkoordinate 6„ aufweist, und einen Gesamtenergie-Entropiefaktor, der die Gesamtenergieentropie der Beugungsordnungen aufweist (430, 440). Die ”schwierig zu drucken”-Energie weist Energie der Beugungsordnungen bei Werten der normalisierten radialen Koordinaten r des Ortsfrequenzraums in einer Umgebung von r = 0 und in einer Umgebung von r = 1 auf, und die ”einfach zu drucken”-Energie weist Energie der Beugungsordnungen auf, die an Zwischenwerten der normalisierten radialen Koordinaten r zwischen der Umgebung von r = 0 und der Umgebung von r = 1 liegen. Der Wert der Lithografie-Schwierigkeitsmessgröße kann zum Ermitteln von Strukturen in einer Entwurfsanordnung verwendet werden, bei denen es sich um bindende Strukturen in einer Optimierungsberechnung handelt. Die Lithografie-Schwierigkeitsmessgröße kann zum Entwerfen integrierter Schaltungen verwendet werden, die gute, verhältnismäßig einfach zu druckende Eigenschaften aufweisen.