JP5562809B2 - 不揮発性メモリのシリアルコアアーキテクチャ - Google Patents
不揮発性メモリのシリアルコアアーキテクチャ Download PDFInfo
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- JP5562809B2 JP5562809B2 JP2010256685A JP2010256685A JP5562809B2 JP 5562809 B2 JP5562809 B2 JP 5562809B2 JP 2010256685 A JP2010256685 A JP 2010256685A JP 2010256685 A JP2010256685 A JP 2010256685A JP 5562809 B2 JP5562809 B2 JP 5562809B2
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/02—Disposition of storage elements, e.g. in the form of a matrix array
- G11C5/025—Geometric lay-out considerations of storage- and peripheral-blocks in a semiconductor storage device
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0483—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells having several storage transistors connected in series
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/08—Address circuits; Decoders; Word-line control circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/24—Bit-line control circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/26—Sensing or reading circuits; Data output circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/32—Timing circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1006—Data managing, e.g. manipulating data before writing or reading out, data bus switches or control circuits therefor
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
- G11C7/103—Read-write modes for single port memories, i.e. having either a random port or a serial port using serially addressed read-write data registers
- G11C7/1033—Read-write modes for single port memories, i.e. having either a random port or a serial port using serially addressed read-write data registers using data registers of which only one stage is addressed for sequentially outputting data from a predetermined number of stages, e.g. nibble read-write mode
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
- G11C7/1039—Read-write modes for single port memories, i.e. having either a random port or a serial port using pipelining techniques, i.e. using latches between functional memory parts, e.g. row/column decoders, I/O buffers, sense amplifiers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
- G11C7/1042—Read-write modes for single port memories, i.e. having either a random port or a serial port using interleaving techniques, i.e. read-write of one part of the memory while preparing another part
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1048—Data bus control circuits, e.g. precharging, presetting, equalising
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1051—Data output circuits, e.g. read-out amplifiers, data output buffers, data output registers, data output level conversion circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1072—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers for memories with random access ports synchronised on clock signal pulse trains, e.g. synchronous memories, self timed memories
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/12—Bit line control circuits, e.g. drivers, boosters, pull-up circuits, pull-down circuits, precharging circuits, equalising circuits, for bit lines
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/10—Programming or data input circuits
- G11C16/14—Circuits for erasing electrically, e.g. erase voltage switching circuits
- G11C16/16—Circuits for erasing electrically, e.g. erase voltage switching circuits for erasing blocks, e.g. arrays, words, groups
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2207/00—Indexing scheme relating to arrangements for writing information into, or reading information out from, a digital store
- G11C2207/10—Aspects relating to interfaces of memory device to external buses
- G11C2207/107—Serial-parallel conversion of data or prefetch
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/14—Circuits or methods to write a page or sector of information simultaneously into a nonvolatile memory, typically a complete row or word line in flash memory
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/20—Suspension of programming or erasing cells in an array in order to read other cells in it
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
- G11C2216/12—Reading and writing aspects of erasable programmable read-only memories
- G11C2216/30—Reduction of number of input/output pins by using a serial interface to transmit or receive addresses or data, i.e. serial access memory
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- Microelectronics & Electronic Packaging (AREA)
- Human Computer Interaction (AREA)
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Read Only Memory (AREA)
- Dram (AREA)
- Memory System (AREA)
Description
本出願は、内容が全体として参照により本明細書に組み込まれている、2006年11月27日に出願した米国特許仮出願第60/867269号の優先権の利益を主張するものである。
102 直列データ経路
104 メモリバンク
106 制御ブロック
108 高電圧生成器
110 双方向直列データ線
112 直列I/Oインターフェース
114 データアービトレータ
116 データ切換器
118 直列転送データ線
120 入力バッファ
122 出力バッファまたは出力ドライバ
124 コマンドデータ変換器
126 経路スイッチ
128 経路スイッチ
200 メモリバンク
202 セクタ
204 セクタ
206 セクタ
208 セクタ
210 ワード線ドライバブロック
212 ページバッファ
214 ページバッファ
216 並列/直列データ変換セレクタ
300 第1の並列/直列データ変換器
302 第2のP/SDC
304 データ経路セレクタ
306 カウンタ
400 セグメント
402 セグメント
404 高電圧nチャネルトランジスタ
405 ビット線選択回路
406 高電圧nチャネルトランジスタ
407 プログラムディスエーブル回路
408 高電圧nチャネルシールドトランジスタ
410 高電圧nチャネルシールドトランジスタ
500 復号回路
502 サブデコーダ
504 サブデコーダ
506 サブデコーダ
508 サブデコーダ
510 アドレス復号NANDゲート
512 シールドイネーブルNANDゲート
514 インバータ
515 局部チャージポンプ
516 インバータ
517 局部チャージポンプ
518 インバータ
520 インバータ
550 局部チャージポンプ
552 デプレッションモードnチャネルパストランジスタ
554 ネイティブnチャネルダイオード接続昇圧トランジスタ
556 高耐圧nチャネル減結合トランジスタ
558 高耐圧nチャネルクランプトランジスタ
560 NAND論理ゲート
562 コンデンサ
600 自己復号ページバッファ
602 順次イネーブラ
604 順次イネーブラ
606 順次イネーブラ
608 セグメントページバッファ
610 セグメントページバッファ
612 セグメントページバッファ
614 ページバッファ段
616 ページバッファ段
618 ページバッファ段
650 ページバッファユニット
652 ページバッファユニット
654 ページバッファユニット
660 ページバッファユニット
700 マスタ/スレーブフリップフロップ
702 第1の伝達ゲート
704 交差結合インバータ
706 交差結合インバータ
708 第2の伝達ゲート
710 交差結合インバータ
712 交差結合インバータ
714 第1のリセットデバイス
716 第2のリセットデバイス
718 NOR論理ゲート
750 ページバッファユニット
752 プリチャージデバイス
754 ラッチリセットデバイス
756 ラッチセンスイネーブルデバイス
758 ラッチイネーブルデバイス
760 交差結合インバータ
762 交差結合インバータ
764 ビット線分離デバイス
766 列選択デバイス
800 メモリバンク
802 メモリバンク
804 直列転送スイッチ
810 データバンクセレクタ
812 伝達ゲート
814 伝達ゲート
816 伝達ゲート
900 メモリシステム
902 第1の直列データ経路
904 第2の直列データ経路
906 制御ブロック
908 制御ブロック
910 メモリバンク
912 メモリバンク
914 メモリバンク
916 メモリバンク
918 第1の直列転送スイッチ
920 第2の直列転送スイッチ
922 直列I/Oインターフェース
924 データアービトレータ
926 データ切換器
928 単一のビット直接転送線
BL1_e〜BLn_e 偶数ビット線
BL1_o〜BLn_o 奇数ビット線
DATA/CMD_IN 外部入力インターフェースピン
DATA/CMD_OUT 外部出力インターフェースピン
B_CTRL バッファ制御信号
COMMAND 並列コマンド信号
SWTCH 信号
GLOB_DATA 信号
P/SCS 並列/直列データ変換セレクタ
L_DL1〜L_DLn 左側のデータ線
R_DL1〜R_DLn 右側のデータ線
L_DL[1:n] データ線
L_DATA 局部双方向直列データ線
R_DATA 局部双方向直列データ線
HALF_SEL 選択制御信号
CBL_S1_1〜CBL_S1_n 共通ビット線
CBL_S1_[1:n]〜CBL_Sm_[1:n] 共通ビット線
CBL_S[1:m]_[1:n] 共通ビット線
A_SELe 偶数選択信号
A_SELo 奇数選択信号
A_SHLDe シールド信号
A_SHLDo シールド信号
B_SELe 選択信号
B_SELo 選択信号
B_SHLDe 選択信号
B_SHLDo 選択信号
PWRBL プログラム禁止電圧レベル
R_ADDR 行アドレス
C_ADDR 列アドレス
PGM プログラム状態信号
PGMb PGMの相補信号
IN 入力端子
IN_1 入力端子
IN_2 入力端子
OUT 出力端子
OUT_1 出力端子
OUT_2 出力端子
OUT_m 出力端子
φp 制御信号
VH 高電圧
Vtn クランプトランジスタの閾値電圧
COL_BIT 列選択ビット
RST 相補リセット信号
RSTb 相補リセット信号
YENb 復号イネーブル信号
φ 相補クロック信号
φb 相補クロック信号
Y-SEL 列イネーブル信号
Y-sel 列選択信号
Y-Sel_[1:m] 列イネーブル信号
RSTPB ラッチリセット信号
LCHD ラッチイネーブル信号
ISOPB 信号
PREb プリチャージ信号
t0 時間
t1 時間
t2 時間
t3 時間
t4 時間
t5 時間
BANK1_DATA 直列データ信号
BANK2_DATA 直列データ信号
BANK_SEL 選択信号
DIR 相補信号
DIRb 相補信号
Claims (9)
- ビット線およびワード線に接続されたメモリセルを有するメモリアレーであって、前記
メモリアレーは少なくとも第1、第2、第3および第4の部分に分けられたメモリアレーと、
結合されたビット線により前記第1及び第2の部分へ結合した第1のページバッファと、
結合されたビット線により前記第3及び第4の部分へ結合した第2のページバッファと、
を備え、
各前記第1及び第2のページバッファのそれぞれは、
読出し動作中に、前記それぞれのページバッファに接続された前記結合されたビット線のデータをラッチし、
前記ラッチされたデータを所定の数のデータ線に並列に結合するよう、構成されており、
前記第1および第2のページバッファからの前記所定の数のデータ線に接続され、前記所定の数のデータ線のそれぞれを双方向直列データ線に順次結合するための順次カプラ、を備え、
前記順次カプラは、
前記第1のページバッファからの所定の数のデータ線のそれぞれに結合し該所定の数のデータ線のそれぞれを第1の局部直列データ線に結合する第1の並列/直列データ変換器と、
前記第2のページバッファからの所定の数のデータ線のそれぞれに結合し該所定の数のデータ線のそれぞれを第2の局部直列データ線に結合する第2の並列/直列データ変換器と、
前記第1の局部直列データ線および前記第2の局部直列データ線のうちの1つを前記双方向直列データ線に選択的に結合するためのデータ経路セレクタと、
を備えるメモリバンク。 - 前記第1および第2の並列/直列データ変換器のそれぞれは、前記所定の数のデータ線のそれぞれに結合された端子を有し、前記端子のそれぞれを前記双方向直列データ線に順次結合するために制御可能である、請求項1に記載のメモリバンク。
- 前記第1の並列/直列データ変換器は、前記第1のページバッファからの所定の数のデータ線のそれぞれに結合された第1の端子を有し、前記第1の端子のそれぞれを双方向の前記第1の局部直列データ線に順次結合するために制御可能であり、
前記第2の並列/直列データ変換器は、前記第2のページバッファからの所定の数のデータ線のそれぞれに結合された第2の端子を有し、前記第2の端子のそれぞれを双方向の前記第2の局部直列データ線に順次結合するために制御可能である、
請求項1に記載のメモリバンク。 - 前記第1の並列/直列データ変換器および前記第2の並列/直列データ変換器を制御するためにクロック信号に応答するカウンタをさらに含む、請求項3に記載のメモリバンク。
- 前記カウンタは、前記クロック信号に応答して複数のビットを持つ出力信号を供給するカウンタであって、前記出力信号は、前記第1及び第2の並列/直列データ変換器に通常は供給され、
前記データ経路セレクタは、前記出力信号の特定のビットによって制御される、請求項4に記載のメモリバンク。 - 前記出力信号の特定のビットは、前記第1及び第2の並列/直列データ変換器によって使用される最上位ビットではない、請求項5に記載のメモリバンク。
- 前記ビット線は、複数の相補的なビット線対を備え、前記ビット線対は、選択要素を通じて前記それぞれの結合ビット線の1つに接続される、請求項1に記載のメモリバンク。
- 前記選択要素は相補的な選択信号に応答して伝導性になる第1及び第2の伝導性及び非伝導性のデバイスを備える、請求項7に記載のメモリバンク。
- 前記各第1及び第2の伝導性及び非伝導性装置は、
前記相補的な選択信号の1つをそれぞれ受信するためのゲートを持つトランジスタを備え、前記トランジスタのターミナルは、前記それぞれのビット線及び結合ビット線に接続される、請求項8に記載のメモリバンク。
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