JP4884784B2 - 半導体装置の作製方法及び半導体装置 - Google Patents
半導体装置の作製方法及び半導体装置 Download PDFInfo
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- JP4884784B2 JP4884784B2 JP2006013880A JP2006013880A JP4884784B2 JP 4884784 B2 JP4884784 B2 JP 4884784B2 JP 2006013880 A JP2006013880 A JP 2006013880A JP 2006013880 A JP2006013880 A JP 2006013880A JP 4884784 B2 JP4884784 B2 JP 4884784B2
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 150000002916 oxazoles Chemical class 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- DYIZHKNUQPHNJY-UHFFFAOYSA-N oxorhenium Chemical compound [Re]=O DYIZHKNUQPHNJY-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910003449 rhenium oxide Inorganic materials 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- GWDUZCIBPDVBJM-UHFFFAOYSA-L zinc;2-(2-hydroxyphenyl)-3h-1,3-benzothiazole-2-carboxylate Chemical compound [Zn+2].OC1=CC=CC=C1C1(C([O-])=O)SC2=CC=CC=C2N1.OC1=CC=CC=C1C1(C([O-])=O)SC2=CC=CC=C2N1 GWDUZCIBPDVBJM-UHFFFAOYSA-L 0.000 description 1
- QEPMORHSGFRDLW-UHFFFAOYSA-L zinc;2-(2-hydroxyphenyl)-3h-1,3-benzoxazole-2-carboxylate Chemical compound [Zn+2].OC1=CC=CC=C1C1(C([O-])=O)OC2=CC=CC=C2N1.OC1=CC=CC=C1C1(C([O-])=O)OC2=CC=CC=C2N1 QEPMORHSGFRDLW-UHFFFAOYSA-L 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1255—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs integrated with passive devices, e.g. auxiliary capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0009—RRAM elements whose operation depends upon chemical change
- G11C13/0014—RRAM elements whose operation depends upon chemical change comprising cells based on organic memory material
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0021—Auxiliary circuits
- G11C13/0069—Writing or programming circuits or methods
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K19/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic element specially adapted for rectifying, amplifying, oscillating or switching, covered by group H10K10/00
- H10K19/202—Integrated devices comprising a common active layer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0021—Auxiliary circuits
- G11C13/0069—Writing or programming circuits or methods
- G11C2013/009—Write using potential difference applied between cell electrodes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/50—Resistive cell structure aspects
- G11C2213/53—Structure wherein the resistive material being in a transistor, e.g. gate
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/70—Resistive array aspects
- G11C2213/72—Array wherein the access device being a diode
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2213/00—Indexing scheme relating to G11C13/00 for features not covered by this group
- G11C2213/70—Resistive array aspects
- G11C2213/79—Array wherein the access device being a transistor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
- H01L27/1262—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate
- H01L27/1266—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate the substrate on which the devices are formed not being the final device substrate, e.g. using a temporary substrate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Thin Film Transistor (AREA)
- Read Only Memory (AREA)
Description
本実施の形態では、有機物を含む記憶素子を有する記憶装置について説明する。図1に本発明の記憶装置が有する記憶素子の構造を示す。記憶素子は第一の導電層101と、第二の導電層103と、前記第一の導電層101と前記第二の導電層103とに挟まれた有機化合物層102とから構成される。第一の導電層101と第二の導電層103の材料には導電性の高い元素や化合物等用いる。有機化合物層102の材料には電気的作用により導電性が変化する有機化合物を用いる。本実施の形態では初期状態でダイオード特性を示し、高い電圧を印加した後に高い導電性を示す有機化合物を用いる。上記構成を有する記憶素子は電圧印加前後で導電性が変化するので、「初期状態」と「導電性変化後」とに対応した2値を記憶させることができる。
本実施の形態では本発明の記憶装置の構成とデータの書き込み方法について説明する。
本実施の形態では、少なくとも制御回路、不揮発性メモリ、アンテナを有し、無線で情報の送受信を行う半導体装置について説明する。
本実施例では、実施の形態2とは異なるメモリセルの構成について説明する。図6(B)にメモリセルの構成を示す。メモリセルは記憶素子602と整流素子604とを有する。当該メモリセルは、ビット線を構成する導電層とワード線を構成する導電層との間に、有機化合物層と整流作用を有する層とを積層することで作製できる。また当該メモリセルは、電圧印加前後で異なるダイオード特性を示す有機化合物を使用し、導電層間に当該有機化合物の層を有する記憶素子で構成することも可能である。
本実施例では実施の形態2と異なる記憶装置の書き込み方法を説明する。本発明の書き込みは記憶素子に複数段階の電圧を連続的に印加し、記憶素子の導電性を変化させることを特徴とする。したがってnを2以上の整数とすると、本発明の記憶装置が有する書き込み回路はn段階の電圧V1からVnを発生する電圧発生回路と、前記n段階の電圧を連続的に出力するように制御するタイミング制御回路とを有する。そして記憶素子に電圧V1からVnを印加時間t1からtnで連続的に印加し、導電性を変化させることを特徴とする。本発明を実施する場合、記憶素子のサイズや有機化合物層の膜厚、材料等を考慮して整数n、電圧Vn、印加時間tnを決定する。整数nは2から5程度が望ましい。
(A)時間t0からtAまでの間、有機化合物層からの放熱を起こりにくくするために電圧を段階的に印加し、有機化合物層の温度を段階的に上昇させる。
(B)時間tAからtB間での間、ガラス転移点の温度を保つために放熱と同量のエネルギーに相当する電圧を印加する。
本実施例ではデータを読み出しについて説明する。図12には、読み出しを説明するために必要な部分を抽出した記憶装置を示す。記憶装置はカラムデコーダ2001、ローデコーダ2002、読み出し回路2003、セレクタ2005、メモリセルアレイ2006を有する。メモリセルアレイ2006はビット線Bm(1≦m≦x)、ワード線Wn(1≦n≦y)、前記ビット線とワード線との交点にx×y個のメモリセル2011を有する。メモリセル2011はトランジスタ2012、記憶素子2013、共通電極2014を有する。読み出し回路2003は電圧発生回路2007、センスアンプ2008、抵抗素子2009、データ出力回路2010、入出力端子Prを有し、抵抗素子2009と入出力端子Prとの間からセンスアンプ2008に入力する点をαとする。
本発明の記憶装置、半導体装置はおもに半導体素子、記憶素子から構成されている。本実施例では当該半導体素子、記憶素子の作製例を、断面図を用いて説明する。本明細書では当該半導体素子、記憶素子を総称して素子群と記載する。
本実施例では記憶素子の作製方法を説明する。記憶素子は図1に示すように、第一の導電層101と第二の導電層103との間に有機化合物層102が挟まれて設けられている。本実施例ではこれら3つの層について層構造、材料、作製方法等を説明する。
上記実施の形態および実施例で説明したように、二つの電極間に複数段階の電圧を印加することによって記憶素子に情報を記憶させる方法は、有機メモリ以外にも用いる事ができる。本実施例では、薄膜トランジスタと同じ形状を有する記憶素子に対して上記書き込み方法を適用する例を説明する。まず、薄膜トランジスタ(TFTとも記載する。)と同じ形状を記憶素子を有する半導体装置について説明する。
さらには図20(C)に示すように書き込み期間において、ワード線1902には常時0Vを印加する。そしてビット線1904およびソース線1906には、書き込み開始から時刻t2までは電圧V7を印加し、時刻t3には電圧V8を印加することによって誤記を防ぐことも可能である。
本実施例では、フラッシュメモリ等のフローティングゲート(浮遊ゲート)を有する不揮発性メモリに本発明の書き込み方法を適用する例を示す。本発明の書き込み方法は、記憶素子に複数段階の電圧を連続的に印加し、記憶素子の導電性を変化させることを特徴とする。したがってnを2以上の整数とすると、本発明の記憶装置が有する書き込み回路はn段階の電圧V1からVnを発生する電圧発生回路と、前記n段階の電圧を連続的に出力するように制御するタイミング制御回路とを有する。そして、記憶素子に電圧V1からVnを印加時間t1からtnで連続的に印加することで書き込みを行うことを特徴とする。
本実施の形態では本発明の半導体装置の具体的な使用例を説明する。
102 有機化合物層
103 導電層
501 カラムデコーダ
502 ローデコーダ
503 セレクタ
504 回路
505 回路
506 メモリセルアレイ
507 メモリセル
508 記憶装置
601 トランジスタ
602 記憶素子
603 共通電極
604 整流素子
701 電圧発生回路
702 タイミング制御回路
1001 半導体装置
1002 共振回路
1003 電源回路
1004 クロック発生回路
1005 復調回路
1006 制御回路
1007 不揮発性メモリ
1008 符号化回路
1009 変調回路
1010 リーダライタ
1011 通信回線
1012 コンピュータ
1701 トランジスタ
1702 記憶素子
1703 ワード線
1704 定電位源
1705 ワード線
1706 ビット線
1707 記憶素子
1708 ワード線
1709 ビット線
1710 信号線
1801 絶縁基板
1802 半導体膜
1803 高濃度不純物領域
1804 チャネル領域
1805 ゲート絶縁膜
1806 ゲート電極
1808 領域
1809 保護膜
1901 ワード線
1902 ワード線
1903 ビット線
1904 ビット線
1905 ソース線
1906 ソース線
1907 記憶素子
1908 記憶素子
1909 記憶素子
1910 記憶素子
2001 カラムデコーダ
2002 ローデコーダ
2003 回路
2005 セレクタ
2006 メモリセルアレイ
2007 電圧発生回路
2008 センスアンプ
2009 抵抗素子
2010 データ出力回路
2011 メモリセル
2012 トランジスタ
2013 記憶素子
2014 共通電極
2015 I−V特性
2016 I−V特性
2017 I−V特性
2201 カラムデコーダ
2202 ローデコーダ
2203 セレクタ
2204 回路
2205 回路
2206 メモリセルアレイ
2207 記憶素子
2216 トランジスタ
2219 信号線
2301 基板
2302 ドレイン
2304 酸化膜
2305 フローティングゲート
2306 酸化膜
2307 コントロールゲート
3001 半導体装置
3002 品物
3003 リーダライタ
3004 表示部
3005 携帯端末
4001 ガラス基板
4002 剥離層
4003 絶縁層
4004 半導体層
4005 ゲート絶縁層
4006 ゲート電極層
4007 N型不純物領域
4008 P型不純物領域
4009 絶縁層
4010 N型不純物領域
4011 N型不純物領域
4012 N型トランジスタ
4013 P型トランジスタ
4014 絶縁層
4015 導電層
4016 絶縁層
4017 導電層
4018 絶縁層
4019 アンテナ
4020 有機化合物層
4021 導電層
4022 保護層
4023 有機化合物層
4024 絶縁層
4025 導電層
4026 保護層
4027 開口部
4028 素子群
4029 可撓性基板
4030 可撓性基板
Claims (3)
- 第1の導電層と第2の導電層とに挟まれて設けられた有機化合物層を有する記憶素子に、少なくとも第1の電圧を印加した後、前記第1の電圧より高い第2の電圧を印加することにより、前記記憶素子の電気特性を変化させることを特徴とする半導体装置の作製方法。
- 第1の導電層と第2の導電層とに挟まれて設けられた有機化合物層を有する記憶素子と、
前記記憶素子に、少なくとも第1の電圧を印加した後、前記第1の電圧より高い第2の電圧を印加する回路とを有することを特徴とする半導体装置。 - 請求項2において、
前記回路に信号を送信するアンテナを有することを特徴とする半導体装置。
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US20080144349A1 (en) | 2008-06-19 |
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JP5371155B2 (ja) | 2013-12-18 |
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