Boots – shoes – and leggings
Patent
1994-06-01
1994-12-27
Gordon, Paul
Boots, shoes, and leggings
364468, 364578, 395120, G06F 1546, G06F 1572
Patent
active
053771184
ABSTRACT:
A method for accurately calculating the movement of a vertex in a three-dimensional (3-D) topography simulator. The method is particularly suited for calculating vertex movement for cases in which etch/deposition rate depends on the angle between the surface normal and the vertical direction. A workpiece is represented as a collection of material solids. Each of the material solids has a boundary model representation. The method of the present invention is comprised primarily of the steps of: advancing edges and surface planes adjacent to the vertex, creating a set of 2-D solutions by clipping with pairs of adjacent surface planes; creating a set of combined 2-D solutions by clipping invalid sections of combined 2-D solutions; construct an arbitrary vertical plane that intersects the surface at the vertex point; constructing vertex trajectories for the vertex to be moved; and clipping constructed vertex trajectories at intersections of created surface and the constructed vertical plane.
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Leon Francisco A.
Saito Kazuyuki
Scharfetter Donald L.
Tazawa Satoshi
Yoshii Akira
Gordon Paul
Intel Corporation
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