JP5923334B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP5923334B2 JP5923334B2 JP2012036511A JP2012036511A JP5923334B2 JP 5923334 B2 JP5923334 B2 JP 5923334B2 JP 2012036511 A JP2012036511 A JP 2012036511A JP 2012036511 A JP2012036511 A JP 2012036511A JP 5923334 B2 JP5923334 B2 JP 5923334B2
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- 239000004065 semiconductor Substances 0.000 title claims description 103
- 239000010410 layer Substances 0.000 claims description 316
- 239000011229 interlayer Substances 0.000 claims description 70
- 239000000758 substrate Substances 0.000 claims description 31
- 230000015572 biosynthetic process Effects 0.000 claims description 18
- 239000010408 film Substances 0.000 description 180
- 238000000034 method Methods 0.000 description 39
- 230000002093 peripheral effect Effects 0.000 description 32
- 238000004519 manufacturing process Methods 0.000 description 29
- 230000008569 process Effects 0.000 description 24
- 239000003990 capacitor Substances 0.000 description 23
- 238000005530 etching Methods 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 12
- 239000012535 impurity Substances 0.000 description 10
- 229920005591 polysilicon Polymers 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 9
- 229910052814 silicon oxide Inorganic materials 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000000206 photolithography Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 2
- 229910021342 tungsten silicide Inorganic materials 0.000 description 2
- -1 Boro Phospho Chemical class 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76886—Modifying permanently or temporarily the pattern or the conductivity of conductive members, e.g. formation of alloys, reduction of contact resistances
- H01L21/76892—Modifying permanently or temporarily the pattern or the conductivity of conductive members, e.g. formation of alloys, reduction of contact resistances modifying the pattern
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
- H01L21/76805—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics the opening being a via or contact hole penetrating the underlying conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
- H01L21/76883—Post-treatment or after-treatment of the conductive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/5226—Via connections in a multilevel interconnection structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Geometry or layout of the interconnection structure
- H01L23/5283—Cross-sectional geometry
-
- 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
- H10B10/125—Static random access memory [SRAM] devices comprising a MOSFET load element the MOSFET being a thin film transistor [TFT]
-
- 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
- H10B10/18—Peripheral circuit regions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/82—Electrodes with an enlarged surface, e.g. formed by texturisation
- H01L28/90—Electrodes with an enlarged surface, e.g. formed by texturisation having vertical extensions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Geometry (AREA)
- Semiconductor Memories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
(実施の形態1)
図1を参照して、本実施の形態の半導体装置DVは、たとえばシリコン単結晶からなる半導体ウェハなどの半導体基板SUBの主表面上に複数種類の回路が形成されている。一例として、半導体装置DVを構成する回路として、信号入出力回路、DA(Digital/Analog)−ADコンバータ、電源回路、CPU(Central Processing Unit)、Flashメモリ、およびSRAM(Static Random Access Memory)が挙げられる。
図9(A)、(B)、(C)を参照して、シリコン基板SUB上に素子分離構造を構成する絶縁膜SIがたとえばシリコン酸化膜から形成される。その後、イオン注入や熱処理が行われて、p型ウエル領域PWLとn型ウエル領域NWLとが形成される。
関連技術の製造方法は、まず図9〜図11に示す本実施の形態の製造方法と同一の工程を経る。この後、図27を参照して、トランジスタTGを覆うように層間絶縁膜II1が形成される。
実施の形態1においては、図8に示すようにコンタクト導電層CTCの底面がライナー膜ILに達しない(つまりコンタクト導電層CTCの底面が層間絶縁膜II2よりなる)場合について説明した。しかし図35に示す本実施の形態のように、コンタクト導電層CTCの底面はライナー膜ILに達していてもよい。つまりコンタクト導電層CTCの底面がライナー膜ILよりなっていてもよい。
実施の形態1および2においてはSRAMのメモリセルについて説明したが、本実施の形態のようにコンタクト導電層CTCがプラグ導電層PLの上面および側面の双方に接続された構成はDRAMに適用されてもよい。
上記の実施の形態1〜3において共通する構成を本実施の形態の構成として図43を用いて説明する。
Claims (10)
- 主表面を有する半導体基板と、
前記半導体基板の前記主表面に位置する導電領域と、
前記主表面上に位置し、かつ前記導電領域に接続されたプラグ導電層と、
前記プラグ導電層の上面および側面の双方に接するコンタクト導電層と、
前記コンタクト導電層に電気的に接続するように前記コンタクト導電層上に位置する配線層とを備え、
前記導電領域は、トランジスタのソース領域およびドレイン領域のいずれかであり、
前記コンタクト導電層と前記配線層とが同じ層により一体に構成されており、かつ前記トランジスタのチャネル幅方向における前記配線層の配線幅は前記チャネル幅方向における前記コンタクト導電層の幅よりも細い、半導体装置。 - 前記配線層は、前記プラグ導電層の真上に位置しない領域において前記コンタクト導電層と接続された部分を有している、請求項1に記載の半導体装置。
- 前記半導体基板の前記主表面上に位置する層間絶縁膜をさらに備え、
前記層間絶縁膜には、前記プラグ導電層を充填するためのプラグ導電層用穴と、前記コンタクト導電層を充填するためのコンタクト導電層用穴とが互いに接続されるように配置されている、請求項1または2に記載の半導体装置。 - 前記コンタクト導電層用穴の底面は前記層間絶縁膜よりなっている、請求項3に記載の半導体装置。
- 前記半導体基板の前記主表面と前記層間絶縁膜との間に位置するライナー層をさらに備え、
前記コンタクト導電層用穴の底面は前記ライナー層よりなっている、請求項3に記載の半導体装置。 - 前記プラグ導電層の上面の高さ位置は前記層間絶縁膜の上面の高さ位置よりも低い、請求項3〜5のいずれかに記載の半導体装置。
- 前記主表面に直交する方向から見て、前記コンタクト導電層は前記プラグ導電層に対して前記チャネル幅方向に突き出すように配置されている、請求項1〜6のいずれかに記載の半導体装置。
- 前記トランジスタはメモリセルに含まれており、
前記配線層は、前記主表面に直交する方向から見て、前記メモリセルの形成領域を直線状に延びて横断している、請求項1〜7のいずれかに記載の半導体装置。 - 前記トランジスタはSRAMのメモリセルに含まれている、請求項1〜7のいずれかに記載の半導体装置。
- 前記トランジスタはDRAMのメモリセルに含まれている、請求項1〜7のいずれかに記載の半導体装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012036511A JP5923334B2 (ja) | 2012-02-22 | 2012-02-22 | 半導体装置 |
US13/772,089 US8987917B2 (en) | 2012-02-22 | 2013-02-20 | Semiconductor device having non-planar interface between a plug layer and a contact layer |
US14/643,663 US20150187645A1 (en) | 2012-02-22 | 2015-03-10 | Semiconductor Device Having Non-Planar Interface Between a Plug Layer and a Contact Layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012036511A JP5923334B2 (ja) | 2012-02-22 | 2012-02-22 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
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JP2013172090A JP2013172090A (ja) | 2013-09-02 |
JP5923334B2 true JP5923334B2 (ja) | 2016-05-24 |
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Application Number | Title | Priority Date | Filing Date |
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JP2012036511A Expired - Fee Related JP5923334B2 (ja) | 2012-02-22 | 2012-02-22 | 半導体装置 |
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US (2) | US8987917B2 (ja) |
JP (1) | JP5923334B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6448424B2 (ja) * | 2015-03-17 | 2019-01-09 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
JP6569901B2 (ja) * | 2015-08-28 | 2019-09-04 | ラピスセミコンダクタ株式会社 | 半導体装置及び半導体装置の製造方法 |
KR20220116927A (ko) * | 2021-02-16 | 2022-08-23 | 삼성전자주식회사 | 반도체 장치 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5451543A (en) * | 1994-04-25 | 1995-09-19 | Motorola, Inc. | Straight sidewall profile contact opening to underlying interconnect and method for making the same |
US6020258A (en) * | 1997-07-07 | 2000-02-01 | Yew; Tri-Rung | Method for unlanded via etching using etch stop |
FR2779274B1 (fr) * | 1998-05-27 | 2000-08-18 | St Microelectronics Sa | Circuit integre avec couche d'arret et procede de fabrication associe |
TW468276B (en) * | 1998-06-17 | 2001-12-11 | United Microelectronics Corp | Self-aligned method for forming capacitor |
TW395025B (en) * | 1998-09-03 | 2000-06-21 | United Microelectronics Corp | Manufacturing method of the unlanded via plug |
JP2001185614A (ja) * | 1999-12-22 | 2001-07-06 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
JP3957945B2 (ja) * | 2000-03-31 | 2007-08-15 | 富士通株式会社 | 半導体装置及びその製造方法 |
DE10140468B4 (de) * | 2001-08-17 | 2006-01-05 | Infineon Technologies Ag | Verfahren zur Erzeugung von Kontaktlöchern auf einer Metallisierungsstruktur |
US7008872B2 (en) * | 2002-05-03 | 2006-03-07 | Intel Corporation | Use of conductive electrolessly deposited etch stop layers, liner layers and via plugs in interconnect structures |
JP2003332464A (ja) * | 2002-05-10 | 2003-11-21 | Fujitsu Ltd | 半導体記憶装置及びその製造方法 |
JP2004079696A (ja) | 2002-08-14 | 2004-03-11 | Renesas Technology Corp | 半導体記憶装置 |
JP2005038884A (ja) * | 2003-07-15 | 2005-02-10 | Toshiba Corp | 不揮発性半導体記憶装置及びその製造方法 |
JP2008205032A (ja) * | 2007-02-16 | 2008-09-04 | Renesas Technology Corp | 半導体装置 |
JP2010056227A (ja) * | 2008-08-27 | 2010-03-11 | Toshiba Corp | 半導体装置及び半導体装置の製造方法 |
-
2012
- 2012-02-22 JP JP2012036511A patent/JP5923334B2/ja not_active Expired - Fee Related
-
2013
- 2013-02-20 US US13/772,089 patent/US8987917B2/en active Active
-
2015
- 2015-03-10 US US14/643,663 patent/US20150187645A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20150187645A1 (en) | 2015-07-02 |
JP2013172090A (ja) | 2013-09-02 |
US20130214428A1 (en) | 2013-08-22 |
US8987917B2 (en) | 2015-03-24 |
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