JP2009510800A - 横方向に成長したナノチューブとその形成方法 - Google Patents
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- 239000002071 nanotube Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 31
- 239000004065 semiconductor Substances 0.000 claims abstract description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 230000005684 electric field Effects 0.000 claims abstract description 4
- 239000003863 metallic catalyst Substances 0.000 claims abstract 30
- 239000000463 material Substances 0.000 claims description 28
- 239000002041 carbon nanotube Substances 0.000 claims description 24
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 4
- 238000000151 deposition Methods 0.000 claims 2
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- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 230000000873 masking effect Effects 0.000 description 7
- 239000002243 precursor Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
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- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 238000005498 polishing Methods 0.000 description 1
- 239000002620 silicon nanotube Substances 0.000 description 1
- 229910021430 silicon nanotube Inorganic materials 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
- 229910052814 silicon oxide Inorganic materials 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
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 238000009271 trench method Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
Claims (20)
- ナノチューブを横方向に成長させる方法であって、
二つの金属性触媒の間に延びる横方向開口を形成するステップであって、前記横方向開口は首部分と空洞部分とを備えるステップと、
二つの前記金属性触媒の間に連続性横方向電気導体を形成すべく、前記各金属性触媒から半径方向にナノチューブを成長させる制約スペースとして、前記横方向開口の前記空洞部分を用いるステップと
を備える方法。 - 請求項1記載の方法は、更に、
二つの前記金属性触媒の間の実質的に直線路内だけに前記ナノチューブの成長を限定するため、前記横方向開口の前記首部分の上方にプラズマを形成するステップを備える方法。 - 請求項2記載の方法は、更に、
前記ナノチューブの成長方向を制御する径方向電場を前記横方向開口の前記空洞部分内に誘発すべく、前記横方向開口の前記首部分に沿う部分と、前記首部分の下方の前記空洞部分の下面の上方とに、前記プラズマから電荷を堆積させるステップを備える方法。 - 請求項1記載の方法において、
前記横方向開口を形成するステップは、更に、
基板を提供するステップと、
前記基板の上方に犠牲層を形成するステップと、
前記犠牲層の上方に絶縁層を形成するステップと、
二つの前記金属性触媒の間の前記犠牲層を除去することによって、前記横方向開口を形成すべく前記絶縁層と前記犠牲層とをエッチングするステップと
を備える方法。 - 請求項1記載の方法は、更に、
基板を提供するステップと、
前記基板の上方に犠牲層を形成するステップと、
前記犠牲層の上方に絶縁層を形成するステップと、
二つの前記金属性触媒の位置を規定する第一開口と第二開口とを形成すべく、前記絶縁層と前記犠牲層をエッチングするステップと、
前記第一開口及び前記第二開口のそれぞれの一部内に金属性触媒材料層を形成するステップであって、前記金属性触媒材料層の一部が前記横方向開口に暴露されるステップと、
前記横方向開口内でのカーボン・ナノチューブの成長を促進すべく、前記横方向開口に暴露される前記金属性触媒材料層の一部を炭素含有材料に暴露するステップと
を備える方法。 - 請求項1記載の方法は、更に、
実質的に前記横方向開口の中心に、前記横方向開口の前記首部分を形成するステップを備える方法。 - 請求項1記載の方法は、更に、
前記連続性横方向電気導体と電気的に接触するビアを形成すべく、導電材料を前記首部分に充填するステップを備える方法。 - 基板と、
前記基板の上方に設けられ、第一金属性触媒材料柱と第二金属性触媒材料柱とを分離する絶縁材料層であって、前記絶縁材料層は、二つの前記金属性触媒の間に延びる横方向領域に開口を有し、前記横方向領域への前記開口は、首部分と空洞部分を備える絶縁材料層と、
前記第一金属性触媒材料柱と前記第二金属性触媒材料柱とを電気的に接続させるべく、前記横方向領域の前記空洞部分に少なくとも十分な量だけ充填されたナノチューブと
を備える半導体。 - 請求項8記載の半導体において、
前記ナノチューブはカーボン・ナノチューブを含み、
前記第一金属性触媒材料柱及び前記第二金属性触媒材料柱は、鉄、コバルト、モリブデン、ニッケル又は白金のうちの一つを含む半導体。 - 請求項8記載の半導体において、
前記絶縁材料層の前記開口は、前記第一金属性触媒材料柱と前記第二金属性触媒材料柱との間の実質的に中心に設けられている半導体。 - 請求項8記載の半導体は、更に、
前記ナノチューブ内に界面を備え、
前記界面は、前記第一金属性触媒材料柱から成長した第一ナノチューブと前記第二金属性触媒材料柱から成長した第二ナノチューブ部分とが物理的に接触する領域である半導体。 - 請求項11記載の半導体において、
前記界面は、前記横方向領域の前記首部分の実質的に下方に位置する半導体。 - 請求項8記載の半導体において、
前記ナノチューブは、更に、窒化ホウ素ナノチューブを含む半導体。 - 請求項8に記載の半導体において、
前記半導体は、更に、前記ナノチューブに電気接触させるべく、前記横方向開口の前記首部分に充填される導電ビアを備える半導体。 - 請求項8記載の半導体は、更に、
各ビアの一部として前記第一金属性触媒材料柱と前記第二金属性触媒材料柱とを用いて形成された第一及び第二の導電ビアを備え、前記第一及び第二の導電ビアは、前記半導体の上方レベルでのナノチューブとの電気的な接触を提供する半導体。 - ナノチューブを横方向に成長させる方法であって、
基板を形成するステップと、
前記基板の上方に犠牲層を形成するステップと、
前記犠牲層の上方に誘電体層を形成するステップと、
二つの金属性触媒柱の間に位置する前記誘電体層の一部と前記犠牲層の全てとを除去して横方向開口を形成するステップであって、前記横方向開口は、除去される前記誘電体層から形成された首部分と、除去される前記犠牲層から形成された空洞部分とを備えるステップと、
二つの前記金属性触媒柱の間に連続性横方向電気導体を形成すべく、二つの前記金属性触媒柱の各々から半径方向にナノチューブを成長させる制約スペースとして、前記横方向開口の前記空洞部分を用いるステップと
を備える方法。 - 請求項16記載の方法は、更に、
二つの前記金属性触媒の間の実質的に直線路内だけに前記ナノチューブの成長を限定するため、前記横方向開口の前記首部分の上方にプラズマを形成するステップを備え、
前記プラズマは、前記ナノチューブの成長方向を制御する径方向電場を前記横方向開口の前記空洞部分内に誘導すべく、前記横方向開口の前記首部分に沿う部分と、前記首部分の下方の前記空洞部分の下面の上方とに電荷を堆積させる方法。 - 請求項16記載の方法は、更に、
前記連続性横方向電気導体と電気的に接触するビアを形成すべく、導電材料を前記首部分に充填するステップ備える方法。 - 請求項16記載の方法は、更に、
前記横方向開口の実質的に中心に前記横方向開口の前記首部分を形成するステップを備える方法。 - 請求項16記載の方法は、更に、
前記ナノチューブとしてカーボン・ナノチューブを形成するステップを備え、
二つの前記金属性触媒柱は、鉄、コバルト、白金、ニッケル又はモリブデンのうちの一つを含む方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/240,241 US7371677B2 (en) | 2005-09-30 | 2005-09-30 | Laterally grown nanotubes and method of formation |
US11/240,241 | 2005-09-30 | ||
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JP2014090146A (ja) * | 2012-10-31 | 2014-05-15 | Denso Corp | 半導体素子及びその製造方法 |
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US7459013B2 (en) * | 2004-11-19 | 2008-12-02 | International Business Machines Corporation | Chemical and particulate filters containing chemically modified carbon nanotube structures |
FR2925764B1 (fr) * | 2007-12-20 | 2010-05-28 | Commissariat Energie Atomique | Procede de croissance horizontale de nanotubes/nanofibres. |
US8796822B2 (en) | 2011-10-07 | 2014-08-05 | Freescale Semiconductor, Inc. | Stacked semiconductor devices |
US9076664B2 (en) | 2011-10-07 | 2015-07-07 | Freescale Semiconductor, Inc. | Stacked semiconductor die with continuous conductive vias |
US9082757B2 (en) | 2013-10-31 | 2015-07-14 | Freescale Semiconductor, Inc. | Stacked semiconductor devices |
US9246112B2 (en) | 2014-01-08 | 2016-01-26 | International Business Machines Corporation | Semiconductor device with ballistic gate length structure |
US10002653B2 (en) | 2014-10-28 | 2018-06-19 | Nxp Usa, Inc. | Die stack address bus having a programmable width |
US10665798B2 (en) * | 2016-07-14 | 2020-05-26 | International Business Machines Corporation | Carbon nanotube transistor and logic with end-bonded metal contacts |
US10665799B2 (en) * | 2016-07-14 | 2020-05-26 | International Business Machines Corporation | N-type end-bonded metal contacts for carbon nanotube transistors |
US10170304B1 (en) | 2017-10-25 | 2019-01-01 | Globalfoundries Inc. | Self-aligned nanotube structures |
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KR20080065996A (ko) | 2008-07-15 |
CN101512769A (zh) | 2009-08-19 |
CN101512769B (zh) | 2010-11-17 |
JP5372515B2 (ja) | 2013-12-18 |
US20070231946A1 (en) | 2007-10-04 |
TWI412139B (zh) | 2013-10-11 |
EP1952454A2 (en) | 2008-08-06 |
KR101354747B1 (ko) | 2014-01-22 |
TWI402888B (zh) | 2013-07-21 |
TW200717597A (en) | 2007-05-01 |
TW200947715A (en) | 2009-11-16 |
US20080211102A1 (en) | 2008-09-04 |
WO2008054374A3 (en) | 2008-11-06 |
WO2008054374A2 (en) | 2008-05-08 |
US7371677B2 (en) | 2008-05-13 |
US7772584B2 (en) | 2010-08-10 |
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