Integrated circuit hierarchical design system, integrated...

Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design

Reexamination Certificate

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C716S030000, C716S030000, C716S030000

Reexamination Certificate

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11176211

ABSTRACT:
An integrated circuit hierarchical design system for optimizing a circuit locating between flip-flops included in a lower layer through a higher layer among layers forming an integrated circuit, which shifts a layer section as a boundary between the higher layer and the lower layer that locates on the circuit to the vicinity of a connection portion between the flip-flop and the circuit to include the circuit in either the higher layer or lower layer, thereby eliminating the need of distributing propagation delays of the circuit.

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Itaru Sakurai: Basis of Digital Design by HDL, pp. 128-129, Figs. 5-18, Techno-press.

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