Redundant circuit presents connections on specified I/O ports

Details Redundant circuit presents connections on specified I/O ports Redundant circuit presents connections on specified I/O ports

2006-10-13

2009-11-24

Whitmore, Stacy A (Department: 2825)

Electronic digital logic circuitry

Multifunctional or programmable

Having details of setting or programming of interconnections...

C716S030000, C716S030000

Reexamination Certificate

active

07622947

ABSTRACT:
A method and apparatus for utilizing redundant circuitry on integrated circuits (ICs) that may increase manufacturing yields, while maintaining a predetermined set of interfaces for connection with external circuitry without drastically increasing die area and circuit complexity are provided. In this manner, even though an IC may have defects which would otherwise render it inoperable, embodiments of the present invention allow the defects to be circumscribed or avoided while still maintaining a predetermined set of interfaces, thus providing for an operational circuit. Various embodiments further provide a method for sorting or separating devices based on their level of functionality or performance, which in turn depends on their number of defects and the desired number of interfaces.

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