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VLSI Design
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2009
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Article
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Fig 1
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Research Article
A Multilevel Congestion-Based Global Router
Figure 1
An example of converting a placement into a routing grid graph [
17
].
(a)
Three pins to be connected in a 3-dimensional routing grid
(b)
The 2-dimensional plan view projection of the grid
(c)
The 2-dimensional route
(d)
The route after layer assignment