Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuki Yamauchi0
Date of Patent
November 27, 2018
Patent Application Number
15672310
Date Filed
August 9, 2017
Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention provides a semiconductor memory device and a reading method thereof, which are capable of suppressing a peak current when pre-charging a bit line are provided. The reading method of a flash memory of the present invention includes steps of: pre-charging a selected bit line; and reading a voltage or a current of the pre-charged selected bit line. The step of pre-charging is performed by pre-charging a sense node SNS to Vcc−Vth at a time t1, pre-charging a node TOBL to VCLAMP2 at a time t2, pre-charging the node TOBL to VCLAMP1 at a time t5, and pre-charging the sense node SNS to Vcc at a time t6.
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