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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Direct Transistor-Level Layout for Digital Blocks

Direct Transistor-Level Layout for Digital Blocks

Gopalakrishnan, Prakash
Rutenbar, Rob A.

Hardcover

Technology & EngineeringGeneral Computers

ISBN10: 1402076657
ISBN13: 9781402076657
Publisher: Springer Nature
Published: Jun 17 2004
Pages: 125
Weight: 0.81
Height: 0.53 Width: 6.22 Depth: 9.52
Language: English
Cell-based design methodologies have dominated layout generation of digital circuits. Unfortunately, the growing demands for transparent process portability, increased performance, and low-level device sizing for timing/power are poorly handled in a fixed cell library.
Direct Transistor-Level Layout For Digital Blocks proposes a direct transistor-level layout approach for small blocks of custom digital logic as an alternative that better accommodates demands for device-level flexibility. This approach captures essential shape-level optimizations, yet scales easily to netlists with thousands of devices, and incorporates timing optimization during layout. The key idea is early identification of essential diffusion-merged MOS device groups, and their preservation in an uncommitted geometric form until the very end of detailed placement. Roughly speaking, essential groups are extracted early from the transistor-level netlist, placed globally, optimized locally, and then finally committed each to a specific shape-level form while concurrently optimizing for both density and routability.

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