EMBEDDED CHARGE TRAP MULTI-TIME-PROGRAMMABLE-READ-ONLY-MEMORY FOR HIGH PERFORMANCE LOGIC TECHNOLOGY

An embedded Multi-Time-Read-Only-Memory having a (MOSFET) cells' array having an initial threshold voltage (VT0) including the MOSFETs arranged in a row and column matrix, having gates in each row coupled to a wordline (WL) running in a first direction and sources in each one of the columns cou...

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Bibliographische Detailangaben
Hauptverfasser: IYER SUBRAMANIAN S, KOTHANDARAMAN CHANDRASEKHARAN, LEU DEREK H, KIRIHATA TOSHIAKI, MOY DAN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An embedded Multi-Time-Read-Only-Memory having a (MOSFET) cells' array having an initial threshold voltage (VT0) including the MOSFETs arranged in a row and column matrix, having gates in each row coupled to a wordline (WL) running in a first direction and sources in each one of the columns coupled to a bitline (BL) running in a second direction; creating two dimensional meshed source line network running in the first and second directions, in a standby state, wherein BLs and MSLN are at a voltage (VDD), and the WLs are at ground; storing a data bit by trapping charges in a dielectric of a target MOSFET, VT0 of target MOSFET increasing to another voltage (VT1) by a predetermined amount ( VT); reading a data bit by using the MOSFET threshold voltage having one of VT0 or VT1 to determine a trapped or de-trapped charge state, and resetting the data bit to a de-trapped state by de-trapping the charge.