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Content Provider | ACM Digital Library |
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Author | Sechen, C. Tseng, Hsiao-Ping |
Abstract | We present a gridless multi-layer router suitable for standard cell circuits using central terminal model (CTM) cells. A CTM cell has pins in the middle which split the over-the-cell routing region into top and bottom parts. Our router routes nets in both the channel (if needed) and over-the-cell. The router uses a combined constraint graph and tile expansion algorithm. It achieves channelless solutions for the Primary1 circuit by routing over the cell in three layers. For classical channel routing examples, it achieves solutions at density for Deutsch's difficult example in two, three, four and five metal layers. It also generates equal or better results compared to the best of the previous channel routers for all the examples we have tried. |
File Format | |
ISBN | 0818677864 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 1997-03-17 |
Access Restriction | Subscribed |
Subject Keyword | Channelless solutions Channel routing Over-the-cell routing region Network routing Tile expansion algorithm Ctm cells Primary1 circuit Gridless multi-layer router Central terminal model cells Standard cell circuits Constraint graph |
Content Type | Text |
Resource Type | Article |
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