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Boosting circuit of semiconductor memory device

  • US 6,614,292 B1
  • Filed: 07/27/2000
  • Issued: 09/02/2003
  • Est. Priority Date: 07/28/1999
  • Status: Expired due to Fees
First Claim
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1. A boosting unit for generating a boosted voltage having a voltage level higher than a power supply voltage level, said boosting unit comprising:

  • a plurality of boosting circuits connected together in series, wherein each of the boosting circuits is configured to boost an input voltage to produce an output voltage at an output terminal, wherein each of the boosting circuits is configured to operate in response to a corresponding boosting signal, wherein each of the boosting signals is configured to be enabled and disabled simultaneously with each of the other boosting signals, and wherein a final boosting circuit comprises a boosting control circuit for controlling boosting efficiency of a final boosted voltage in response to a boosting selection signal.

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