Boots – shoes – and leggings
Patent
1996-06-19
1998-03-10
Teska, Kevin J.
Boots, shoes, and leggings
364483, 364492, 364488, 395750, G06F 1500
Patent
active
057269041
ABSTRACT:
An automatic method of generating slits in power buses on a chip. The present invention includes three embodiments. The first embodiment is directed to a generic method of generating power slits. Once bus dimensions are identified, predetermined parameters for optimal power slit size and number are used to automatically generate a power slit layer for the mask database. The second embodiment is a continuation of the first embodiment and is directed to a method of generating power slits for an orthogonal corner case; where two buses overlap at 90.degree. angles. This is performed by locating all corner cases. Power slits are removed within a cross (corner/intersect) area of overlapping buses. At this point power slits from overlapping buses are extended across the corner/intersect area. The extension lines are logically ANDed together/resulting in points within the corner/intersect area where the extension lines intersect. These intersection points indicate where new types of power slits, called "holes", can be generated. The third embodiment is directed to a method of generating power slits for non-orthogonal corner case. It is generally identical to the second embodiment.
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Chuang Tatao
Hoang Hy
Lin Chong Ming
Long Tran
Louis-Jacques Jacques
Seiko Epson Corporation
Teska Kevin J.
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