Method for mixed placement of structured and non-structured circ

Details Method for mixed placement of structured and non-structured circ Method for mixed placement of structured and non-structured circ

1996-05-20

1999-07-27

Teska, Kevin J.

G06F 1700, G06F 1750

Patent

active

059304995

ABSTRACT:
The invention resides in a computer-aided design system for defining physical placement and floor-planning of electronic circuits on a given substrate. Improve utilization of substrate area is achieved by arranging circuits into structural (e.g., data-path) and non-structural (e.g., non-data-path) zones for effectively segregated chip or board lay-out. Software is provided to receive a netlist file and determine therefrom which components are categorizable within structural portion. Furthermore, software is provided to produce a lay-out file which defines physical placement of the prototype design, wherein structural components are inter-placed with related control components, for example, to provide sliced-structure placement of a semiconductor chip.

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patent: 5506788 (1996-04-01), Cheng et al.
Royannez et al. "A 1.0ns 64-Bits GaAs Adder Using Quad Tree Algorithm," IEEE, pp. 24-28, Mar. 1996.
Kim et al. "A Timing-Driven Data Path Layout Synthesis with Integer Programming," IEEE, pp. 716-719, Nov. 1995.
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Tsujihashi et al "A High-Density Data-Path Generator with Stretchable Cells," IEEE, pp. 2-8, Jan. 1994.
Rijnders et al "Timing Optimization by Bit-Level Arithmatic Transformations," IEEE, pp. 48-53, Nov. 1995.

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