Electronic digital logic circuitry – Multifunctional or programmable – Array
Reexamination Certificate
2008-03-18
2008-03-18
Barnie, Rexford (Department: 2819)
Electronic digital logic circuitry
Multifunctional or programmable
Array
C326S038000, C326S047000, C326S016000
Reexamination Certificate
active
07345507
ABSTRACT:
A multi-product integrated circuit die includes at least two different portions, of which at least one portion can be deliberately rendered non-operational in some manner (e.g., non-functional, inaccessible, and/or non-programmable) within the package. A selection code storage circuit stores a product selection code. A first value of the product selection code selects the option where both the first and second portions of the first die are operational. A second value of the product selection code selects the option where only the first portion of the first die is operational. The selection code storage circuit can include non-volatile memory or a fuse structure, or the product selection code can be configured as a package bonding option. The product selection code can also enable boundary scan for the operational portion of the die, and omit from the boundary scan chain any portions of the die that are deliberately rendered non-operational.
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Bauer Trevor J.
Goetting F. Erich
Lamarche P. Hugo
McGuire Patrick J.
Oh Kwansuhk
Barnie Rexford
Cartier Lois D.
Hammond Crystal L
Maunu LeRoy D.
Xilinx , Inc.
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