WO2009119666A1 - Sramセル及びsram装置 - Google Patents
Sramセル及びsram装置 Download PDFInfo
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- WO2009119666A1 WO2009119666A1 PCT/JP2009/055951 JP2009055951W WO2009119666A1 WO 2009119666 A1 WO2009119666 A1 WO 2009119666A1 JP 2009055951 W JP2009055951 W JP 2009055951W WO 2009119666 A1 WO2009119666 A1 WO 2009119666A1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B10/00—Static random access memory [SRAM] devices
- H10B10/12—Static random access memory [SRAM] devices comprising a MOSFET load element
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/201—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates the substrates comprising an insulating layer on a semiconductor body, e.g. SOI
- H10D86/215—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates the substrates comprising an insulating layer on a semiconductor body, e.g. SOI comprising FinFETs
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/62—Fin field-effect transistors [FinFET]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0193—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices the components including FinFETs
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/02—Manufacture or treatment characterised by using material-based technologies
- H10D84/03—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology
- H10D84/038—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology using silicon technology, e.g. SiGe
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
- H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
- H10D84/85—Complementary IGFETs, e.g. CMOS
- H10D84/853—Complementary IGFETs, e.g. CMOS comprising FinFETs
Definitions
- the present invention relates to an SRAM (Static Random Access Memory) cell and an SRAM device.
- SRAM Static Random Access Memory
- an SRAM cell has been configured using a planar MOS field effect transistor (Metal-Oxide-Silicon Field-Effect Transistor) on a silicon substrate such as bulk or SOI (Silicon On Insulator).
- MOS field effect transistor Metal-Oxide-Silicon Field-Effect Transistor
- SOI Silicon On Insulator
- This SRAM cell can be realized with an area of 118 F 2 (F represents half the length of the first layer metal wiring pitch). However, this SRAM cell does not consider the viewpoint of reducing standby power consumption. If the SRAM cell circuit is designed from the standpoint of reducing standby power consumption, for example, it is as shown in FIG.
- the SRAM cell shown in FIG. 5 uses a four-terminal double gate FET for the NMOS and PMOS constituting the circuit, raises the threshold voltage by the action of the threshold control gate during standby, and greatly reduces the current flowing through the NMOS and PMOS. . However, when the SRAM cell shown in FIG. 5 is mounted by a normal method as disclosed in Non-Patent Document 1, the area of the SRAM cell becomes 160 F 2 or more.
- the SRAM cell includes first to fourth semiconductor thin plates standing on the same substrate and sequentially arranged in parallel with each other.
- the first semiconductor thin plate includes a first conduction type first four-terminal double-gate FET. (M1), the second semiconductor thin plate is of the second conductivity type, and the second and third four-terminal double-gate FETs (M3, 2) connected in series, and the third semiconductor thin plate is of the second conductivity type.
- M1 first conduction type first four-terminal double-gate FET.
- M3 second and third four-terminal double-gate FETs
- M5 semiconductor four-terminal double-gate FET
- the third and fourth 4-terminal double gate FETs constitute a selection transistor having a logic signal input gate connected to the word line
- the first and second 4-terminal double gate FETs (M1). , M3) and fifth and sixth four terminals Burugeto FET (M4, M5) constitute a complementary inverter cross-coupled to realize the flip-flop, respectively.
- the logic signal input gates of the first and sixth four-terminal double gate FETs (M1, M5) are arranged on the side facing the second semiconductor thin plate or the third semiconductor thin plate, and the second and third 4
- the threshold value control gates of the terminal double gate FETs (M3, M2) and the threshold value control gates of the fourth and fifth four terminal double gate FETs (M6, M4) are disposed at opposing positions, respectively.
- the threshold control gates of the first and sixth four-terminal double gate FETs are commonly connected to the second bias wiring.
- the word lines and the first and second bias wirings are arranged in a direction orthogonal to the arrangement direction of the first to fourth semiconductor thin plates.
- FIG. 6 is a schematic diagram showing the device arrangement method of the SRAM cell disclosed in Patent Document 1
- FIG. 7 is a circuit diagram rewritten in accordance with the arrangement of the SRAM cell.
- the SRAM cell arrangement of Patent Document 1 has the following characteristics. 1. The surface where semiconductor thin plates on which different types of conductive FETs are mounted is used as a logic signal input gate, so that the number of contacts can be reduced when a contact is drawn from a wiring above the first layer wiring. 2. The surface facing the semiconductor thin plates on which the FETs of the same conductivity type are mounted is used as a threshold control gate, and similarly, the number of contacts can be reduced when extracting the contacts from the upper wiring. 3.
- an object of the present invention is to solve the above problems and to realize an SRAM cell using a four-terminal double gate FET with a smaller area and to realize a highly integrated SRAM device.
- the FETs are adjacent to each other, the logic signal input gates are formed on the opposite side surfaces of the semiconductor thin plate, and the threshold control gates of the third double gate FET and the fourth four-terminal double gate FET are adjacent to each other and relative to each other. Formed on the side of the semiconductor thin plate, The threshold control gate of the second double gate FET and the sixth four-terminal double gate FET are adjacent to each other across the second and third semiconductor thin plates, and are formed on the side surfaces of the semiconductor thin plate facing each other.
- the threshold control gates of the second, third, fourth, and sixth four-terminal double gate FETs are commonly connected to the first bias wiring, and the threshold control gates of the first and fifth four-terminal double gate FETs Are commonly connected to the second bias wiring, and the word line and the first and second bias wirings are arranged in a direction perpendicular to the arrangement direction of the first to fourth semiconductor thin plates.
- Characteristic SRAM cell (2) The SRAM cell according to (1), wherein the first and fifth four-terminal double-gate FETs are P-channel FETs.
- An SRAM device in which a plurality of SRAM cells according to any one of (1) to (3) are arranged in line symmetry in the bit line direction.
- FIG. 6 and FIG. 7 corresponding to Patent Document 1 the wiring existing between M2 and M6 increases the interval between M3 and M4.
- the second and sixth By securing a space for wiring between the N-channel FETs, the cell area is further saved, and the cells can be arranged with an area of 128 F 2 .
- FIG. 6 is a circuit diagram in which the SRAM cell circuit shown in FIG. 5 is rewritten in accordance with the arrangement of the SRAM cell disclosed in Patent Document 1;
- the circuit configuration disclosed in the present invention and the configuration of the peripheral circuit are the same as those shown in FIGS. 6 and 7 disclosed in Patent Document 1.
- the circuit disclosed in Patent Document 2 is adopted, the circuit functions.
- the SRAM cell according to (1) has a cell structure different from that of the SRAM cell disclosed in Patent Document 1, for example, as shown in FIGS. Details of the SRAM cell structure shown in FIGS. 1 to 4 are as follows.
- FIG. 1 is a schematic diagram showing an arrangement method of six 4-terminal double gate FETs (M1 to M6) constituting an SRAM cell.
- a first four-terminal double gate of the first conductivity type including first to fourth semiconductor thin plates standing on the same substrate and sequentially arranged in parallel to each other, the first semiconductor thin plates being connected in series with each other
- the FET (M1) and the second conduction type second four-terminal double gate FET (M2), the second semiconductor thin plate includes the second conduction type third four-terminal double gate FET (M3), and the third semiconductor.
- the thin plate has a second conduction type fourth four-terminal double gate FET (M4), and the fourth semiconductor thin plate has a first conduction type fifth four-terminal double gate FET (M5) connected in series with each other.
- a two-conduction type six-terminal double-gate FET (M6) is formed.
- the first conduction type four-terminal double gate FETs (M2-4, M6) are N type four terminal double gate FETs
- the second conduction type four terminal double gate FETs (M1, M5) are This is a P-type four-terminal double-gate FET.
- the second and sixth four-terminal double gate FETs (M2, M6) Constitutes a selection transistor having a logic signal input gate connected to the word line, and includes first and third four-terminal double gate FETs (M1, M3) and fourth and fifth four-terminal double gate FETs (M4, M5) constitutes a complementary inverter cross-coupled to realize each flip-flop, and the first four-terminal double gate FET (M1) and the third double gate FET (M3) are adjacent to each other, and their logic
- the signal input gate is formed on the opposite side surface of the semiconductor thin plate, and the fourth four-terminal double gate FET (M4) and the fifth double gate FET (M5) are adjacent to each other, and the logic
- the signal input gate is formed on the opposite side of the semiconductor thin plate, and the threshold control gate of the third double gate FET (M3) and the threshold control gate of the
- the threshold control gate of the second double gate FET (M2) and the sixth four-terminal double gate (M6) FET are formed adjacent to each other across the second and third semiconductor thin plates.
- the threshold control gates of the second, third, fourth, and sixth four-terminal double gate FETs (M2, M3, M4, and M6) are formed on the side surfaces of the semiconductor thin plate facing each other.
- the threshold control gates of the first and fifth four-terminal double gate FETs (M1, M5) are commonly connected to the second bias wiring, and are connected to the word line, the second And second bias lines are arranged in first to a direction perpendicular to the arrangement direction of the fourth semiconductor thin plate.
- FIG. 3 is a layout diagram of the first and second layer wirings of the SRAM cell
- FIG. 4 is a layout diagram of the third and fourth layer wirings of the corresponding SRAM cell.
- this SRAM cell has a length of 8F, a width of 16F, and a cell area of 128F 2 when F corresponding to half the length of the first layer metal wiring pitch is used as a unit.
- a plurality of SRAM cells according to the present invention are arranged line-symmetrically in the arrangement direction of the first to fourth semiconductor thin plates and arranged line-symmetrically in the bit line direction.
- an SRAM device is configured.
- the SRAM cell according to the present invention has N-type and P-type polar polarities respectively on the first and fourth semiconductor thin plates 303, as can be seen from FIGS. Both different 4-terminal double gate FETs are mounted. As can be seen from the schematic diagram of FIG. 1, the space for wiring is secured between the second and sixth N-type four-terminal double gate FETs (M2 and M6), thereby further saving the cell area. , 128F 2 cell area became possible. By adopting the SRAM cell according to the present invention, a highly integrated SRAM device can be realized.
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Abstract
Description
しかしながら、将来的にはバルクプレーナMOS電界効果トランジスタでは、短チャネル効果の増大を防ぐことが困難となってくる。これは、漏れ電流の増大を意味する。
これを回避する方法の一つとして、4端子ダブルゲートFET(Field-Effect Transistor、電界効果型トランジスタ)を用いてSRAMセルを構成する方法が提案されている(非特許文献1参照)。
図5に示すSRAMセルは、回路を構成するNMOS、PMOSを4端子ダブルゲートFETにし、待機時には閾値制御ゲートの働きによって閾値電圧を上げ、NMOS、PMOSを流れる電流を大幅に低減するものである。
ところが図5に示すSRAMセルを非特許文献1に開示されるような通常の方法で実装すると、SRAMセルの面積は160F2以上となる。
このため、発明者らはこの4端子ダブルゲートFETの性能を更に向上させるため次のようなSRAMセル構造を特許文献1において提案している。
特許文献1のSRAMセル配置は、次のような特徴を有する。
1.互いに異なる伝導型のFETが実装される半導体薄板が対向した面を論理信号入力ゲートとして用い、第1層配線よりも上層の配線からコンタクトを引き出す際にコンタクト数を減少することができる。
2.同一の伝導型のFETが実装される半導体薄板が対向した面をしきい値制御ゲートとして用い、同様に上層の配線からコンタクトを引き出す際にコンタクト数を減少させることができる。
3.ワードラインWLを各半導体薄板に対して直交する方向に引き回すとき、ワードラインWLの行選択信号が入力されるコンタクトが直線上に並び、WLとコンタクトの接続が効率的になる。
4.共通のしきい値制御用電圧が入力されるコンタクトがワードラインWLと平行な直線上に並ぶため、WLと平行して引き回されるしきい値電圧制御用の配線とコンタクトの接続が効率的となり、WLの変動に同期した行単位でのしきい値制御が可能となる。
5.SRAMセルはセルアレイ中では、WL方向には併進対称に、BL方向には相隣るセルとの境界線を中心に線対称に繰り返し配置されるため、電源電圧VDD、VSSを供給するコンタクト、BL、BL~のコンタクト及びM1、M5に入力される閾値電圧制御信号のゲートコンタクトをセル間で共有できる。
特許文献1のSRAMセルは上記の特徴を備えることにより、SRAMセル面積が144F2まで縮小された。
(1)同一基板上に起立し相互に平行に順に配置された、第1乃至第4の半導体薄板を含み、第1の半導体薄板には互いに直列接続された第1伝導型の第1の4端子ダブルゲートFETと第2伝導型の第2の4端子ダブルゲートFET、第2の半導体薄板には第2伝導型の第3の4端子ダブルゲートFET、第3の半導体薄板には第2伝導型の第4の4端子ダブルゲートFET、第4の半導体薄板には互いに直列接続された第1伝導型の第5の4端子ダブルゲートFETと第2伝導型の第6の4端子ダブルゲートFETがそれぞれ形成されており、第2及び第6の4端子ダブルゲートFETは、論理信号入力ゲートがワード線に接続された選択トランジスタを構成し、第1及び第3の4端子ダブルゲートFETと第4及び第5の4端子ダブルゲートFETはそれぞれフリップフロップを実現するためクロスカップルされた相補型インバータを構成するようにしたSRAMセルであって、
第1の4端子ダブルゲートFETと第3のダブルゲートFETは相隣り合い、それらの論理信号入力ゲートは相対する半導体薄板側面に形成され、第4の4端子ダブルゲートFETと第5のダブルゲートFETは相隣り合い、論理信号入力ゲートは相対する半導体薄板側面に形成され、第3のダブルゲートFETの閾値制御ゲートと第4の4端子ダブルゲートFETの閾値制御ゲートは相隣り合い、互いに相対する半導体薄板側面に形成され、
第2のダブルゲートFETの閾値制御ゲートと第6の4端子ダブルゲートFETは第2及び第3の半導体薄板をはさんで相隣り合い、それらの閾値制御ゲート互いに相対する半導体薄板側面に形成され、第2、第3、第4、第6の4端子ダブルゲートFETの閾値制御ゲートは第1のバイアス配線に共通接続されており、第1及び第5の4端子ダブルゲートFETの閾値制御ゲートは第2のバイアス配線に共通接続されており、かつ、ワード線、第1及び第2のバイアス配線は、第1乃至第4の半導体薄板の配列方向と直交する方向に配置されていることを特徴とするSRAMセル。
(2)第1及び第5の4端子ダブルゲートFETは、PチャンネルFETであることを特徴とする(1)に記載のSRAMセル。
(3)(1)乃至(2)に記載のSRAMセルが、第1乃至第4の半導体薄板の配列方向に、線対称に複数個配列されたSRAM装置。
(4)(1)乃至(3)のいずれかに記載のSRAMセルが、ビット線方向に、線対称に複数配列されたSRAM装置。
M1 第1の4端子ダブルゲートFET
M2 第2の4端子ダブルゲートFET
M3 第3の4端子ダブルゲートFET
M4 第4の4端子ダブルゲートFET
M5 第5の4端子ダブルゲートFET
M6 第6の4端子ダブルゲートFET
WL ワード線及びその信号
BL、BL~ ビット線
VG2,n N型の4端子ダブルゲートFET用の閾値制御バイアス電圧供給線及びその信号
VG2,p P型の4端子ダブルゲートFET用の閾値制御バイアス電圧供給線及びその信号
301 埋め込み絶縁膜
302 半導体基板
303 第1及び第4の半導体薄板
304 第2及び第3の半導体薄板
401 第1、第2層配線の配置図
402 第3、第4層配線の配置図
403 N拡散層
404 P拡散層
405 ゲート層
406 第1配線層
407 ゲート乃至拡散層コンタクト
408 第2配線層
409 ゲート乃至拡散層コンタクトと第1-第2配線間ビアの貫通構造
410 ゲート乃至拡散層コンタクトと第1-第2-第3-第4配線間ビアの貫通構造
411 ゲート乃至拡散層コンタクトと第1-第2-第3配線間ビアの貫通構造
412 第1-第2-第3配線間ビアの貫通構造
413 第3-第4配線層間ビア
414 第3配線層
415 第4配線層
図1~4に示すSRAMセル構造の詳細は次のとおりである。
同一基板上に起立し相互に平行に順に配置された、第1乃至第4の半導体薄板を含み、第1の半導体薄板には互いに直列接続された第1伝導型の第1の4端子ダブルゲートFET(M1)と第2伝導型の第2の4端子ダブルゲートFET(M2)、第2の半導体薄板には第2伝導型の第3の4端子ダブルゲートFET(M3)、第3の半導体薄板には第2伝導型の第4の4端子ダブルゲートFET(M4)、第4の半導体薄板には互いに直列接続された第1伝導型の第5の4端子ダブルゲートFET(M5)と第2伝導型の第6の4端子ダブルゲートFET(M6)がそれぞれ形成されている。この実施例では、第1伝導型の4端子ダブルゲートFET(M2~4、M6)はN型の4端子ダブルゲートFETであり、第2伝導型の4端子ダブルゲートFET(M1、M5)はP型の4端子ダブルゲートFETである。
Claims (4)
- 同一基板上に起立し相互に平行に順に配置された、第1乃至第4の半導体薄板を含み、第1の半導体薄板には互いに直列接続された第1伝導型の第1の4端子ダブルゲートFETと第2伝導型の第2の4端子ダブルゲートFET、第2の半導体薄板には第2伝導型の第3の4端子ダブルゲートFET、第3の半導体薄板には第2伝導型の第4の4端子ダブルゲートFET、第4の半導体薄板には互いに直列接続された第1伝導型の第5の4端子ダブルゲートFETと第2伝導型の第6の4端子ダブルゲートFETがそれぞれ形成されており、第2及び第6の4端子ダブルゲートFETは、論理信号入力ゲートがワード線に接続された選択トランジスタを構成し、第1及び第3の4端子ダブルゲートFETと第4及び第5の4端子ダブルゲートFETはそれぞれフリップフロップを実現するためクロスカップルされた相補型インバータを構成するようにしたSRAMセルであって、
第1の4端子ダブルゲートFETと第3のダブルゲートFETは相隣り合い、それらの論理信号入力ゲートは相対する半導体薄板側面に形成され、第4の4端子ダブルゲートFETと第5のダブルゲートFETは相隣り合い、論理信号入力ゲートは相対する半導体薄板側面に形成され、第3のダブルゲートFETの閾値制御ゲートと第4の4端子ダブルゲートFETの閾値制御ゲートは相隣り合い、互いに相対する半導体薄板側面に形成され、
第2のダブルゲートFETの閾値制御ゲートと第6の4端子ダブルゲートFETは第2及び第3の半導体薄板をはさんで相隣り合い、それらの閾値制御ゲート互いに相対する半導体薄板側面に形成され、第2、第3、第4、第6の4端子ダブルゲートFETの閾値制御ゲートは第1のバイアス配線に共通接続されており、第1及び第5の4端子ダブルゲートFETの閾値制御ゲートは第2のバイアス配線に共通接続されており、かつ、ワード線、第1及び第2のバイアス配線は、第1乃至第4の半導体薄板の配列方向と直交する方向に配置されていることを特徴とするSRAMセル。 - 第1及び第5の4端子ダブルゲートFETは、PチャンネルFETであることを特徴とする請求項1に記載のSRAMセル。
- 請求項1乃至2に記載のSRAMセルが、第1乃至第4の半導体薄板の配列方向に、線対称に複数個配列されたSRAM装置。
- 請求項1乃至3のいずれか1項記載のSRAMセルが、ビット線方向に、線対称に複数配列されたSRAM装置。
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| JP2010505727A JP5131788B2 (ja) | 2008-03-28 | 2009-03-25 | Sramセル及びsram装置 |
| US12/934,845 US8659088B2 (en) | 2008-03-28 | 2009-03-25 | SRAM cell and SRAM device |
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| JP3220616B2 (ja) | 1995-04-06 | 2001-10-22 | 日鐵溶接工業株式会社 | プラズマア−ク移行式の切断装置 |
| JP3220615B2 (ja) | 1995-04-06 | 2001-10-22 | 日鐵溶接工業株式会社 | プラズマア−ク移行式の溶接装置 |
| JP3417508B2 (ja) | 1995-07-12 | 2003-06-16 | 株式会社小松製作所 | プラズマトーチ |
| JP3248134B2 (ja) | 1999-06-15 | 2002-01-21 | 株式会社 日本通商 | 金属製ワイヤ端面のアークスポット溶接装置 |
| WO2008081740A1 (ja) * | 2006-12-28 | 2008-07-10 | National Institute Of Advanced Industrial Science And Technology | Sramセル及びsram装置 |
| FR2957186B1 (fr) * | 2010-03-08 | 2012-09-28 | Soitec Silicon On Insulator | Cellule memoire de type sram |
| US20230200093A1 (en) * | 2021-12-21 | 2023-06-22 | Intel Corporation | Integrated sram memory tag circuitry and dram memory cell architectures |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002026337A (ja) * | 2001-06-05 | 2002-01-25 | Semiconductor Energy Lab Co Ltd | スタティックram |
| JP2005064459A (ja) * | 2003-07-31 | 2005-03-10 | Toshiba Corp | 半導体装置およびその製造方法 |
| JP2006511091A (ja) * | 2002-12-19 | 2006-03-30 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 反転型FinFET薄膜トランジスタを用いたFinFETSRAMセル |
| WO2008069277A1 (ja) * | 2006-12-07 | 2008-06-12 | National Institute Of Advanced Industrial Science And Technology | Sram装置 |
| WO2008081740A1 (ja) * | 2006-12-28 | 2008-07-10 | National Institute Of Advanced Industrial Science And Technology | Sramセル及びsram装置 |
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| US7378710B2 (en) | 2002-12-19 | 2008-05-27 | International Business Machines Corporation | FinFET SRAM cell using inverted FinFET thin film transistors |
| KR100763583B1 (ko) | 2006-12-07 | 2007-10-05 | 한국전자통신연구원 | 비변형 고체표면의 선택적 개질 방법 및 상기 개질된고체표면에 대한 활성물질의 고정화 방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002026337A (ja) * | 2001-06-05 | 2002-01-25 | Semiconductor Energy Lab Co Ltd | スタティックram |
| JP2006511091A (ja) * | 2002-12-19 | 2006-03-30 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 反転型FinFET薄膜トランジスタを用いたFinFETSRAMセル |
| JP2005064459A (ja) * | 2003-07-31 | 2005-03-10 | Toshiba Corp | 半導体装置およびその製造方法 |
| WO2008069277A1 (ja) * | 2006-12-07 | 2008-06-12 | National Institute Of Advanced Industrial Science And Technology | Sram装置 |
| WO2008081740A1 (ja) * | 2006-12-28 | 2008-07-10 | National Institute Of Advanced Industrial Science And Technology | Sramセル及びsram装置 |
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| US8659088B2 (en) | 2014-02-25 |
| JP5131788B2 (ja) | 2013-01-30 |
| JPWO2009119666A1 (ja) | 2011-07-28 |
| US20110024844A1 (en) | 2011-02-03 |
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