Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2011-07-12
2011-07-12
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S543000, C327S544000
Reexamination Certificate
active
07978001
ABSTRACT:
A microprocessor according to one embodiment includes a supply node providing a core voltage, a functional block, a charge node, select logic, and substrate bias logic. The functional block has multiple power modes and includes one or more semiconductor devices and a substrate bias rail routed within the functional block and coupled to a substrate connection of at least one semiconductor device. The select logic couples the substrate bias rail to the charge node when the functional block is in a low power mode and clamps the substrate bias rail to the supply node when the functional block is in a full power mode. The substrate bias logic charges the charge node to a bias voltage at an offset voltage relative to the core voltage when the functional block is in the low power mode. Semiconductor devices may be provided to clamp or otherwise couple the bias rail.
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Bertram Raymond A.
Brazell Mark J.
Canac Vanessa S.
Gaskins Darius D.
Lundberg James R.
Donovan Lincoln
Englund Terry L
Huffman James W.
Stanford Gary R.
VIA Technologies Inc.
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