Invention Grant
US07646078B2 Die saw crack stopper 有权
模锯裂缝塞

Die saw crack stopper
Abstract:
A novel die saw crack stopper that consists of placing formations into the scribe line of multiple metal layers of a die. These formations comprise multiple right angle shapes that are interconnected at right angles. In an embodiment the formations have an overall shape that has a special meaning, such as a single right angle “z” shape along with a discontinuous cross piece, two interlocking right angle “z” shapes, “t”, multiple sets of parallel lines perpendicular to each other, with one set having a line that only intersects a single line from the other set, or the like. The formations in a single layer can be placed such that they are located adjacent to each other along an axis that runs substantially parallel with the scribe line. These formations can also be connected to other formations in other metal layers located either above or below the formation.
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