Static information storage and retrieval – Read/write circuit – Including reference or bias voltage generator
Reexamination Certificate
2011-03-22
2011-03-22
Ho, Hoai V (Department: 2827)
Static information storage and retrieval
Read/write circuit
Including reference or bias voltage generator
C365S063000, C365S154000
Reexamination Certificate
active
07911855
ABSTRACT:
A semiconductor device capable of reducing power consumption is provided. When a power to an internal circuit is interrupted, e.g., in a standby mode, a switch is turned off, and a pseudo-ground line is charged with a leak current of the internal circuit to raise a potential thereof. After the switch is turned off, a switch connected to a charge supply unit is turned on while the potential is rising, so that the charge supply unit is electrically coupled to the pseudo-ground line. Thereby, charges accumulated in the charge supply unit are discharged to the pseudo-ground line. The switch is turned off to decouple electrically the charge supply unit from the pseudo-ground line. Thereby, when the power supply is interrupted, a part of the charges for raising the potential of the pseudo-ground line is supplemented with the charges of the charge supply unit.
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Ho Hoai V
McDermott Will & Emery LLP
Renesas Technology Corp.
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