Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design
Reexamination Certificate
2006-10-10
2006-10-10
Kik, Phallaka (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Nanotechnology related integrated circuit design
C716S030000, C716S030000, C716S030000, C716S030000, C700S115000, C257S758000
Reexamination Certificate
active
07120884
ABSTRACT:
A mask identification (ID) bit circuit (100) is disclosed that provides one of two potentials (VGND or VPWR) to a sense node (108). A mask ID bit circuit (100) may include a number of links (102-0to102-4) arranged in series. A link (102-0to102-4) may include inputs (104-0and104-1) and outputs (106-0and106-1). In one configuration, inputs (104-0and104-1) may be directly coupled to outputs (106-0and106-1). In another configuration, inputs (104-0and104-1) may be cross coupled to outputs (106-0and106-1). Cross coupling inputs (104-0and104-1) and outputs (106-0and106-1) of a link (102-0to102-4) can switch a potential (VGND or VPWR) supplied to a sense node (108). The configuration of more than one link (102-0to102-4) of a mask ID bit circuit (100) can be changed, allowing a sense node to be switched between two potential (VGND and VPWR) multiple times. According to an embodiment, n mask ID bit circuits (100) may provide as many as 2ndifferent mask ID codes.
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Choi Ronald W.
Reinschmidt Robert M.
Cypress Semiconductor Corporation
Kik Phallaka
Sako Bradley T.
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