JP6802536B2 - キャパシタ - Google Patents
キャパシタ Download PDFInfo
- Publication number
- JP6802536B2 JP6802536B2 JP2019506990A JP2019506990A JP6802536B2 JP 6802536 B2 JP6802536 B2 JP 6802536B2 JP 2019506990 A JP2019506990 A JP 2019506990A JP 2019506990 A JP2019506990 A JP 2019506990A JP 6802536 B2 JP6802536 B2 JP 6802536B2
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- Prior art keywords
- electrode
- main surface
- capacitor
- capacitor layer
- trench structure
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- 239000003990 capacitor Substances 0.000 title claims description 282
- 239000000758 substrate Substances 0.000 claims description 105
- 230000001681 protective effect Effects 0.000 claims description 39
- 239000010410 layer Substances 0.000 description 151
- 229910052710 silicon Inorganic materials 0.000 description 28
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 26
- 239000010703 silicon Substances 0.000 description 26
- 230000035882 stress Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 238000005219 brazing Methods 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Description
図1〜図4を参照しつつ、本発明の第1実施形態に係るキャパシタ100の構成について説明する。このとき、図1は、本発明の第1実施形態に係るキャパシタが実装された電子機器を概略的に示す断面図である。図2は、第1実施形態に係るキャパシタの構成を概略的に示す断面図である。図3は、第1実施形態に係るキャパシタの第1キャパシタ層の構成を概略的に示す断面図である。図4は、第1実施形態に係るキャパシタの第1キャパシタ層の構成を概略的に示す平面図である。
次に、図5を参照しつつ、本発明の第2実施形態に係るキャパシタの第1キャパシタ層201の構成について説明する。図5は、第2実施形態に係るキャパシタの第1キャパシタ層の構成を概略的に示す平面図である。
次に、図6を参照しつつ、本発明の第3実施形態に係るキャパシタの第1キャパシタ層301の構成について説明する。図6は、第3実施形態に係るキャパシタの第1キャパシタ層の構成を概略的に示す平面図である。
次に、図7及び図8を参照しつつ、本発明の第4実施形態に係るキャパシタの第1キャパシタ層401の構成について説明する。図7は、第4実施形態に係るキャパシタの第1キャパシタ層の構成を概略的に示す断面図である。図8は、第4実施形態に係るキャパシタの第1キャパシタ層の構成を概略的に示す平面図である。
次に、図9を参照しつつ、本発明の第5実施形態に係るキャパシタの第1キャパシタ層501の構成について説明する。図9は、第5実施形態に係るキャパシタの第1キャパシタ層の構成を概略的に示す断面図である。
次に、図10を参照しつつ、本発明の第6実施形態に係るキャパシタの第1キャパシタ層601の構成について説明する。図10は、第6実施形態に係るキャパシタの第1キャパシタ層の構成を概略的に示す断面図である。
次に、図11を参照しつつ、本発明の第7実施形態に係るキャパシタ700の構成について説明する。図11は、第7実施形態に係るキャパシタの構成を概略的に示す断面図である。
101…第1キャパシタ層
110…第1基板 111…シリコン基板 112…第1誘電膜
110A…第1主面 110B…第2主面
115…第1電極 117…第2誘電膜
119…第2電極 120…第1導電膜 121…第2導電膜
123…保護絶縁膜 124…接続電極
103…第2キャパシタ層
130…第2基板 131…シリコン基板 132…第3誘電膜
130A…第3主面 130B…第4主面
139…第3電極 140…第3導電膜 141…第4導電膜
137…誘電膜 135…第4電極
143…保護絶縁膜 144…接続電極
102…ろう部材
Claims (13)
- 互いに対向する第1主面及び第2主面を有し、トレンチ部を有する第1トレンチ構造が前記第2主面に設けられた第1基板と、
前記第1基板の第1主面側に設けられた第1電極と、
前記第1基板の第2主面側において前記第1トレンチ構造の前記トレンチ部を含む領域に設けられた第2電極と、
を有する第1キャパシタ層と、
互いに対向する第3主面及び第4主面を有する第2基板と、
前記第2基板の第3主面側に設けられた第3電極と、
前記第2基板の第4主面側に設けられた第4電極と、
を有する第2キャパシタ層と、
を備え、
前記第1キャパシタ層と前記第2キャパシタ層は、前記第2電極と前記第3電極とが互いに向き合うとともに電気的に接続されるように配置され、
前記第1キャパシタ層は、前記第1基板と前記第2電極との間に位置するとともに前記トレンチ部を含む領域に設けられた誘電膜をさらに備え、
前記第1キャパシタ層は、前記第2電極に電気的に接続された接続電極をさらに有し、
前記第2キャパシタ層は、前記第3電極に電気的に接続された接続電極をさらに有し、
前記第2電極と前記第3電極が互いに前記接続電極によって電気的に接続され、
前記第1キャパシタ層の前記接続電極は、前記第2主面の法線方向から平面視したときに、少なくとも一部が前記第1トレンチ構造の領域よりも外側に前記第1トレンチ構造の領域を囲むように配置され、前記第1電極と前記第2電極とが重なる領域に配置され且つ前記トレンチ部を避ける、キャパシタ。 - 前記第1キャパシタ層は、少なくとも前記誘電膜を覆う保護絶縁膜をさらに有する、
請求項1に記載のキャパシタ。 - 前記保護絶縁膜の誘電率は、前記誘電膜の誘電率よりも高い、
請求項2に記載のキャパシタ。 - 前記保護絶縁膜の誘電率は、前記誘電膜の誘電率よりも低い、
請求項2に記載のキャパシタ。 - 前記保護絶縁膜は、前記誘電膜における前記第1基板に対する引張応力又は圧縮応力を緩和するように構成される、
請求項2から4のいずれか1項に記載のキャパシタ。 - 前記第1キャパシタ層の前記接続電極は、前記第2主面の法線方向から平面視したときに、前記第1トレンチ構造の領域よりも外側のみに配置され、且つ前記第1トレンチ構造の領域の内側に配置されない、
請求項1から5のいずれか1項に記載のキャパシタ。 - 前記第1キャパシタ層の前記第1トレンチ構造と前記第2キャパシタ層の前記第3電極との間には空隙が形成される、
請求項1から6のいずれか1項に記載のキャパシタ。 - 前記第1キャパシタ層の前記接続電極は、前記第2主面の法線方向から平面視したときに、前記第1電極と前記第2電極とが重なる領域のみに配置される、
請求項1から7のいずれか1項に記載のキャパシタ。 - 前記第1キャパシタ層の前記接続電極は、前記第2主面の法線方向から平面視したときに、前記第1トレンチ構造の領域を囲むように枠状に設けられる、
請求項6に記載のキャパシタ。 - 前記第1キャパシタ層の前記接続電極は、前記第2主面の法線方向から平面視したときに、前記第1トレンチ構造の領域を囲むように複数の島状に設けられる、
請求項6に記載のキャパシタ。 - 前記第1キャパシタ層は、複数の前記接続電極を有し、
前記第1キャパシタ層の前記複数の接続電極の少なくとも1つは、前記第2主面の法線方向から平面視したときに、前記第1トレンチ構造の領域の内側に配置され且つ前記第1トレンチ構造の前記トレンチ部を避けた領域と重なるように設けられ、
前記第1トレンチ構造が、前記トレンチ部の間に設けられた第1領域と、前記トレンチ部の間に設けられ前記第1領域よりも幅が大きい第2領域とを有し、
前記第1キャパシタ層の前記複数の接続電極の少なくとも1つは、前記第2領域と重なるように設けられる、
請求項1に記載のキャパシタ。 - 前記第2基板は、トレンチ部を有する第2トレンチ構造が前記第3主面に設けられ、
前記第3電極は、前記第2基板の第3主面側において前記第2トレンチ構造の前記トレンチ部を含む領域に設けられ、
前記第1キャパシタ層と前記第2キャパシタ層は、前記第1トレンチ構造と前記第2トレンチ構造が互いに向き合うように配置されている、
請求項1から11のいずれか1項に記載のキャパシタ。 - 第1キャパシタ層と、第2キャパシタ層と、前記第1キャパシタ層及び前記第2キャパシタ層の間に位置する少なくとも1つの中間キャパシタ層と、を備えたキャパシタであって、
前記第1キャパシタ層は、
互いに対向する第1主面及び第2主面を有し、トレンチ部を有する第1トレンチ構造が前記第2主面に設けられた第1基板と、
第1基板の第1主面側に設けられた第1電極と、
前記第1基板の第2主面側において前記第1トレンチ構造の前記トレンチ部を含む領域に設けられた第2電極と、を備え、
前記第2キャパシタ層は、
互いに対向する第3主面及び第4主面を有し、トレンチ部を有する第2トレンチ構造が前記第3主面に設けられた第2基板と、
前記第2基板の第3主面側において前記第2トレンチ構造の前記トレンチ部を含む領域に設けられた第3電極と、
前記第2基板の第4主面側に設けられた第4電極と、を備え、
前記中間キャパシタ層は、
互いに対向する第5主面及び第6主面を有し、トレンチ部を有する第3トレンチ構造が前記第5主面に設けられ、トレンチ部を有する第4トレンチ構造が前記第6主面に設けられた第3基板と、
前記第3基板の第5主面側において前記第3トレンチ構造の前記トレンチ部を含む領域に設けられた第5電極と、
前記第3基板の第6主面側において前記第4トレンチ構造の前記トレンチ部を含む領域に設けられた第6電極と、を備え、
前記第1キャパシタ層と前記中間キャパシタ層は、前記第1トレンチ構造と前記第3トレンチ構造が互いに向き合うように配置され、
前記第2キャパシタ層と前記中間キャパシタ層は、前記第2トレンチ構造と前記第4トレンチ構造が互いに向き合うように配置され、
前記第1キャパシタ層は、前記第1基板と前記第2電極との間に位置するとともに前記トレンチ部を含む領域に設けられた誘電膜をさらに備え、
前記第1キャパシタ層は、前記第2電極に電気的に接続された接続電極をさらに有し、
前記第2キャパシタ層は、前記第3電極に電気的に接続された接続電極をさらに有し、
前記中間キャパシタ層は、前記第5電極に電気的に接続された接続電極と、前記第6電極に電気的に接続された接続電極とをさらに有し、
前記第2電極と前記第5電極が、それぞれに電気的に接続された接続電極によって、互いに電気的に接続され、
前記第3電極と前記第6電極が、それぞれに電気的に接続された接続電極によって、互いに電気的に接続され、
前記第1キャパシタ層の前記接続電極は、前記第2主面の法線方向から平面視したときに、少なくとも一部が前記第1トレンチ構造の領域よりも外側に前記第1トレンチ構造の領域を囲むように配置され、前記第1電極と前記第2電極とが重なる領域に配置され且つ前記トレンチ部を避ける、キャパシタ。
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JP2017059875 | 2017-03-24 | ||
JP2017059875 | 2017-03-24 | ||
PCT/JP2018/011500 WO2018174191A1 (ja) | 2017-03-24 | 2018-03-22 | キャパシタ |
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JP6802536B2 true JP6802536B2 (ja) | 2020-12-16 |
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GB2577545B (en) | 2018-09-28 | 2022-07-20 | Power Roll Ltd | Energy storage device |
CN110071096B (zh) * | 2019-03-13 | 2021-09-10 | 福建省福联集成电路有限公司 | 一种提高容值和耐压的叠状电容的制作方法 |
US11063131B2 (en) * | 2019-06-13 | 2021-07-13 | Intel Corporation | Ferroelectric or anti-ferroelectric trench capacitor with spacers for sidewall strain engineering |
US11063034B2 (en) | 2019-06-27 | 2021-07-13 | Micron Technology, Inc. | Capacitor structures |
CN114503260A (zh) * | 2019-09-17 | 2022-05-13 | 株式会社村田制作所 | 半导体装置 |
JP7317649B2 (ja) | 2019-09-20 | 2023-07-31 | 株式会社東芝 | コンデンサ |
JP7180623B2 (ja) * | 2020-01-31 | 2022-11-30 | 株式会社村田製作所 | 半導体装置 |
CN112018096B (zh) * | 2020-07-31 | 2022-05-24 | 复旦大学 | 一种用于能量缓冲的纳米电容三维集成系统及其制备方法 |
CN112151535B (zh) * | 2020-08-17 | 2022-04-26 | 复旦大学 | 一种硅基纳米电容三维集成结构及其制备方法 |
CN112490361A (zh) * | 2020-12-02 | 2021-03-12 | 赛莱克斯微系统科技(北京)有限公司 | 一种晶圆电容的制作方法、晶圆电容及电子设备 |
CN112652621B (zh) * | 2020-12-22 | 2022-11-25 | 复旦大学 | 三维集成结构及其制造方法 |
US20240057258A1 (en) * | 2021-01-19 | 2024-02-15 | Tdk Corporation | Circuit board |
US11869988B2 (en) | 2021-08-26 | 2024-01-09 | Taiwan Semiconductor Manufacturing Company, Ltd. | Double-sided stacked DTC structure |
US12034039B2 (en) * | 2021-10-18 | 2024-07-09 | Globalfoundries Singapore Pte. Ltd. | Three electrode capacitor structure using spaced conductive pillars |
CN116666382A (zh) * | 2023-07-26 | 2023-08-29 | 湖北三维半导体集成创新中心有限责任公司 | 半导体结构及制备方法 |
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KR0168346B1 (ko) * | 1994-12-29 | 1998-12-15 | 김광호 | 고유전율 재료를 이용한 커패시터 및 그 제조방법 |
JP2003045739A (ja) * | 2001-07-12 | 2003-02-14 | Ind Technol Res Inst | 積層式マイクロ構造大容量コンデンサ |
JP2004165557A (ja) * | 2002-11-15 | 2004-06-10 | Sanyo Electric Co Ltd | コンデンサチップ |
US7186625B2 (en) * | 2004-05-27 | 2007-03-06 | International Business Machines Corporation | High density MIMCAP with a unit repeatable structure |
US7633112B2 (en) * | 2006-08-24 | 2009-12-15 | Samsung Electronics Co., Ltd. | Metal-insulator-metal capacitor and method of manufacturing the same |
WO2009051297A1 (en) * | 2007-10-19 | 2009-04-23 | Young Joo Oh | Metal capacitor and manufacturing method thereof |
WO2009051296A1 (en) * | 2007-10-19 | 2009-04-23 | Young Joo Oh | Metal capacitor and manufacturing method thereof |
US7626802B2 (en) * | 2007-10-19 | 2009-12-01 | Oh Young Joo | Metal capacitor and manufacturing method thereof |
US8203823B2 (en) * | 2008-01-11 | 2012-06-19 | Oh Young Joo | Metal capacitor and manufacturing method thereof |
JP2009295925A (ja) * | 2008-06-09 | 2009-12-17 | Tdk Corp | トレンチ型コンデンサ及びその製造方法 |
JP2010050177A (ja) * | 2008-08-20 | 2010-03-04 | Sharp Corp | 半導体装置 |
US20130009595A1 (en) * | 2011-07-08 | 2013-01-10 | Brown Kevin L | Devices for receiving periodic charging |
FR3012664B1 (fr) | 2013-10-29 | 2016-01-01 | Ipdia | Structure a capacite amelioree |
DE102014200869B4 (de) * | 2013-11-22 | 2018-09-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Integrierter Kondensator und Verfahren zum Herstellen desselben und dessen Verwendung |
US9105759B2 (en) * | 2013-11-27 | 2015-08-11 | Taiwan Semiconductor Manufacturing Company, Ltd. | Capacitive device and method of making the same |
EP2924730A1 (en) * | 2014-03-25 | 2015-09-30 | Ipdia | Capacitor structure |
JP6343529B2 (ja) * | 2014-09-11 | 2018-06-13 | 太陽誘電株式会社 | 電子部品、回路モジュール及び電子機器 |
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