Non-volatile memory device and charge pump circuit for the same

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage

Reexamination Certificate

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Reexamination Certificate

active

08085086

ABSTRACT:
A charge pump apparatus comprises a plurality of charge pump stages, including a first stage, and one or more succeeding stages. The charge pump stages each include a respective output node. Each output node is connected to charge boosting circuitry and to precharge circuitry. The charge boosting circuit receives one or more clock signals. The precharge circuits have a first state allowing the respective pump-stage output node to fluctuate at a level above a standby wordline voltage, and a second state coupling the respective pump-stage output node to the standby wordline voltage.

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patent: 5954828 (1999-09-01), Lin
patent: 6456154 (2002-09-01), Sugimura
patent: 6768366 (2004-07-01), Kuo et al.
patent: 6795350 (2004-09-01), Chen et al.
patent: 7190211 (2007-03-01), Nakagawa et al.
patent: 7236061 (2007-06-01), Lin
patent: 7595682 (2009-09-01), Lin et al.
patent: 7599225 (2009-10-01), Loh et al.
patent: 2006/0186947 (2006-08-01), Lin et al.

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