DC path checking in a hierarchical circuit design

Details DC path checking in a hierarchical circuit design DC path checking in a hierarchical circuit design

2005-02-25

2008-08-12

Do, Thuan (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000, C716S030000

Reexamination Certificate

active

07412681

ABSTRACT:
A computer implemented method is provided for use in evaluating a hierarchical representation of a circuit design encoded in a computer readable medium comprising: traversing a circuit path within a higher level circuit that includes a reference potential connection, to identify a port of a call to a first lower level circuit that is DC path connected to the reference potential; identifying a first DC port group that includes each port of the call to the first lower level circuit that is DC path connected to the identified port of the call to the first lower level circuit; automatically marking as DC path connected to the reference potential, each port of the call to the first lower level circuit that is a member of the first DC port group; and traversing a circuit path within the first lower level circuit to identify a circuit path within the first lower level circuit that is DC path connected to a marked port of the first lower level circuit.

REFERENCES:
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patent: 5553008 (1996-09-01), Huang et al.
patent: 7024652 (2006-04-01), McGaughy et al.
Celestry Design Technologies, Inc. (2001).Celestry BSIM Pro+™ Basic Operations, User Manual, Version 2001.3, pp. iii-xiii. (Table of Contents Only).
Celestry Design Technologies, Inc. (2001).Celestry BSIM Pro+™ Device Modeling Guide, User Manual, Version 2001.3, pp. iii-xii. (Table of Contents Only).

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