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JanM.RabaeyAnanthaChandrakasanBorivojeNikolic半導(dǎo) 12/4,?DigitalIntegrated Chapter器電案例?DigitalIntegrated bleMask-bleMask-Read-WriteRead-Write?DigitalIntegrated MWordWordWordWordWordWordWordN2WordN2
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輸出幅度放大至AAK2
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選擇正確的?DigitalIntegrated
Block Block
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每次選址僅一個塊被激活=>節(jié)約了功?DigitalIntegrated
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MOSROM MOSROM?DigitalIntegrated MOSOR
Pull-down
?DigitalIntegrated MOSNORPull-up
?DigitalIntegrated MOSNORROM
Cell(9.5x僅使用有源區(qū)編Metal1on?DigitalIntegrated MOSNORROMCell(11僅使用接觸孔層Metal1on?DigitalIntegrated MOSNAND
Pull-up除了被選行外的所有字線默認(rèn)?DigitalIntegrated
VDD較之NORROMVDD較之NORROM僅使用金屬1Metal1on?DigitalIntegrated NANDROMCell(5x僅使用注入層編 Metal1on?DigitalIntegrated MOSNORROM等效瞬態(tài)CC線電容和門線電電阻不是主要的漏和柵漏?DigitalIntegrated MOSNANDROM等效瞬態(tài)電阻由堆疊晶體管漏/源和完整門電?DigitalIntegrated 逐步 PolysiliconwordMetalwordDrivingthewordlinefrombothMetal K
UsingametalUse
Polysiliconword?DigitalIntegrated 預(yù)充電MOSNORf
PrechargeWLWLWLWL
BL BL BL BLPMOS預(yù)充電器件可以根據(jù)需要做的很大但時(shí)鐘驅(qū)動的設(shè)計(jì)也相應(yīng)變 ?DigitalIntegrated 浮柵(Floating-gate)晶體管
Floating
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Schematic?DigitalIntegrated 20 0 51010520SD-50SD-2.55SD
voltageleavescharge
Programmingresultshigher?DigitalIntegrated “0”“0”-“1”-“ON“ ?DigitalIntegrated FLOTOXFloating
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很難絕對控制擦除后晶體管可能被雙晶體管單FlashControln1
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Courtesy
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11.2 CellRatio?DigitalIntegrated CMOSSRAM分析(寫Q=Q=VBL=?DigitalIntegrated CMOSSRAM分析(寫?DigitalIntegrated 6管SRAM
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讀:電荷在位線 V=VBL–VPRE
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CS+?DigitalIntegrated 1管DRAM的每根位線都需要一個靈敏放大器原因是電荷重1管DRAM的讀出是破壞性的需要采用讀刷新保證操作的正和3管單元不同的是,1管單元的設(shè)計(jì)必須明確存在一個附加的寫“1”時(shí),閾值電壓會丟失.因此要使字線自舉電壓超過?DigitalIntegrated SenseampWordlinet?DigitalIntegrated 1-TDRAMMetalword
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bit
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twostagedifferential?DigitalIntegrated Onceadequatevoltagegapcreated,senseampenabledwithPositivefeedback ?DigitalIntegrated
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control
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