SEMICONDUCTOR DEVICE

A clamp element 46 applies a fixed potential to a bit line BL at a time of a readout operation. A reference current source RCS generates a reference current Iref. An offset current source OCS1 is activated at a time of a readout operation for an OTP cell OTPC, and at a time of being activated, gener...

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Bibliographic Details
Main Authors TAKEDA, Koichi, SHIMOI, Takahiro, KANDA, Akihiko
Format Patent
LanguageEnglish
Published 14.12.2023
Subjects
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Summary:A clamp element 46 applies a fixed potential to a bit line BL at a time of a readout operation. A reference current source RCS generates a reference current Iref. An offset current source OCS1 is activated at a time of a readout operation for an OTP cell OTPC, and at a time of being activated, generates an offset current Iof1 to be subtracted from a cell current Icel. At the time of the readout operation for the OTP cell OTPC, the sense amplifier SA detects a magnitude relationship between the reference current Iref and a readout current Ird obtained by subtracting the offset current Iof1 from the cell current Icel.
Bibliography:Application Number: US202318317382