JP5639063B2 - 横方向成長半導体ナノワイヤの製造方法とその方法により得られたトランジスタ - Google Patents
横方向成長半導体ナノワイヤの製造方法とその方法により得られたトランジスタ Download PDFInfo
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- JP5639063B2 JP5639063B2 JP2011530535A JP2011530535A JP5639063B2 JP 5639063 B2 JP5639063 B2 JP 5639063B2 JP 2011530535 A JP2011530535 A JP 2011530535A JP 2011530535 A JP2011530535 A JP 2011530535A JP 5639063 B2 JP5639063 B2 JP 5639063B2
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- nanowire
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Description
a)金属酸化物層を還元して金属酸化物層の表面上に半径(Rm)の金属ナノドロップを形成するのに適した時間tの間出力Pの水素プラズマを金属酸化物層に照射するステップと、
b)金属ナノドロップを含む金属酸化物層上の半導体材料の薄層の低温プラズマ支援蒸着(plasma-assisted deposition)のステップであって、前記層が金属ナノドロップを被覆するのに適した厚さ(Ha)を有するステップと、
c)金属ナノドロップ(3)の溶融温度以上の温度Tにおいて真空下で熱アニールして金属ナノドロップから薄層として堆積された半導体材料の触媒作用により半導体ナノワイヤの横方向成長を促進するステップと
を含む。
d)前記基板上に金属酸化物層を形成して半導体ナノワイヤの成長を開始する領域を定めるステップと、
e)半導体ナノワイヤの成長のための一つ以上の誘導手段を形成するステップであって、各誘導手段が前記半導体ナノワイヤ成長開始領域を、半導体ナノワイヤ成長終了領域に接続して機能経路を定めるステップと、
f)ステップa)、b)、及びc)の適用において一つ以上の半導体ナノワイヤを製造してステップc)中に個々の誘導手段に沿って半導体ナノワイヤの誘導成長を実施するステップであって、各半導体ナノワイヤが前記半導体ナノワイヤ成長開始領域においてその成長を開始し、その成長を前記半導体ナノワイヤ成長終了領域まで継続するステップと
を含む。
ただし、vcmとvmaはそれぞれ結晶−金属界面と金属−アモルファス界面の移動速度であり、
SSiNWはSiNW5の有効断面積を表わし、
Rmは金属ドロップレット(例えばインジウムの)半径であり、
Haはa−Si:H層4の被覆厚さであり、
αはシリコンの非晶相から結晶相への変態中の体積収縮である。
ただし、fは幾何学的因子である。
ただし、
2 金属酸化物層
3 金属ナノドロップ
4 半導体材料の薄層
5 半導体ナノワイヤ
6 真空チャンバ
7 サンプルホルダ
8 RF発振器
9 ガス注入手段
10 ポンプ手段
11 水素プラズマ11
12 シランプラズマ
14 電極
15 電極
16 ソース
17 ドレイン
18 ゲート
20 トランジスタ
21 チャンネル
22 空き領域
23 段差
24 側壁
25 角
26 ナノリング構造
27 絶縁間隙
28 へり
29 トレンチ
30 空き側
31 窓
32 ITO基板
33 誘電体材料層
34 成長開始領域
35 成長終了領域
Claims (13)
- 金属酸化物層(2)を含む基板(1)上に半導体ナノワイヤ(5)を製造する方法であって、
a)インジウム錫合金酸化物(ITO)の金属酸化物層(2)を還元して前記金属酸化物層(2)の表面上に半径(Rm)の触媒金属ナノドロップ(3)を形成するのに適した時間tの間出力Pの水素プラズマ(11)を前記金属酸化物層(2)に照射するステップと、
b)前記触媒金属ナノドロップ(3)を含む前記金属酸化物層(2)上への、前記金属ナノドロップ(3)を被覆するのに適した厚さ(Ha)を有するシリコン半導体材料の薄層(4)の低温プラズマ助長蒸着ステップと、
c)前記触媒金属ナノドロップ(3)の溶融温度以上の温度Tにおいて真空下で熱アニールして前記触媒金属ナノドロップ(3)により薄層(4)として堆積された前記シリコン半導体材料の分解、次いで結晶の形での沈殿によりシリコン半導体ナノワイヤ(5)の横方向成長を促進し、これによってシリコン半導体ナノワイヤ(5)を形成するステップと
を備える半導体ナノワイヤ(5)を製造する方法。 - 薄層(4)として堆積される前記シリコン半導体材料はアモルファス、微結晶又は多結晶の形で堆積されることを特徴とする請求項1に記載の半導体ナノワイヤ(5)を製造する方法。
- 前記薄層(4)のシリコン半導体材料は厚さ(Ha)を有する水素化アモルファスシリコン(a−Si:H)であることを特徴とする請求項2に記載のシリコン ナノワイヤ(5)を製造する方法。
- 前記触媒金属ナノドロップ(3)の半径(Rm)は還元プラズマの持続時間の関数として較正され、シリコン半導体材料の前記薄層(4)の堆積時間はシリコン半導体材料の前記薄層(4)の厚さ(Ha)と半径(Rm)の所定の比ηを得るように決定され、前記比ηは前記ナノワイヤ(5)の横方向成長を保証するのに適していることを特徴とする請求項1ないし3の何れか一つに記載の半導体ナノワイヤ(5)を製造する方法。
- 前記比ηは1に等しく、それにより、前記ナノワイヤ(5)の形態は前記ナノワイヤ(5)の直径の10倍を超える範囲にある長さにわたり直線であることを特徴とする請求項4に記載の半導体ナノワイヤ(5)を製造する方法。
- 前記金属酸化物層(2)を局部的にマスキングして電極(14、15)を形成するステップをさらに含み、ナノワイヤ(5)の成長は二つの電極(14、15)間で行われることを特徴とする請求項1ないし5の何れか一つに記載の半導体ナノワイヤ(5)を製造する方法。
- 前記熱アニールステップc)中に誘導手段を形成するステップを含み、前記半導体ナノワイヤ(5)の横方向成長は所定の経路に従った前記誘導手段に沿って誘導されることを特徴とする請求項1ないし6の何れか一つに記載の半導体ナノワイヤ(5)を製造する方法。
- 誘導手段を形成する前記ステップは半導体材料のチャンネル(21)を形成することにあり、前記チャンネルは前記誘導手段を形成することを特徴とする請求項7に記載の半導体ナノワイヤ(5)を製造する方法。
- 誘導手段を形成する前記ステップは前記基板(1)上に段差(23)を形成することにあり、前記段差(23)は側壁(24)を有し、前記誘導手段を形成することを特徴とする請求項7に記載の半導体ナノワイヤ(5)を製造する方法。
- ステップa)とステップb)の間に誘電体材料層(33)を堆積するステップと、その後にこの誘電体材料層(33)をエッチングして前記誘電体材料層(33)内に前記段差(23)を形成するステップが続くことを特徴とする請求項9に記載の半導体ナノワイヤ(5)を製造する方法。
- 請求項1ないし10の何れか一つに記載の基板(1)を含む電子デバイスを製造する方法であって、
d)前記基板(1)上に金属酸化物層(2)を形成して半導体ナノワイヤの成長を開始する領域(34)を定めるステップと、
e)前記半導体ナノワイヤ(5)の成長のための一つ以上の誘導手段を形成するステップであって、各誘導手段が前記半導体ナノワイヤ成長開始領域(34)を、半導体ナノワイヤ成長終了領域(35)に接続して機能経路を定めるステップと、
f)ステップa)、b)、及びc)の適用において一つ以上の半導体ナノワイヤ(5)を製造してステップc)中に個々の誘導手段に沿って半導体ナノワイヤ(5)の誘導成長を実施するステップであって、各半導体ナノワイヤ(5)が前記半導体ナノワイヤ成長開始領域(34)においてその成長を開始し、その成長を前記半導体ナノワイヤ成長終了領域(35)まで継続するステップと
を含むことを特徴とする電子デバイスを製造する方法。 - ステップe)において、基板(1)上の誘電体材料層(33)を堆積するステップがステップa)とb)の間に行われ、誘電体材料層(33)を堆積するこのステップの後に前記誘電体材料(33)をエッチングして前記誘電体材料層(33)内に段差(23)を形成するステップが続き、前記段差(23)は半導体ナノワイヤ(5)の成長のための前記誘導手段を形成することを特徴とする請求項11に記載の電子デバイスを製造する方法。
- 請求項1ないし12の何れか一つに記載の方法により得られた一つ以上の半導体ナノワイヤ(5)に基づくナノメータトランジスタ(20)であって、前記半導体ナノワイヤ(5)の一つは前記トランジスタのソース(16)、ドレイン(17)、及びゲート(18)間に半導体接続部を形成するのに適しているナノメータトランジスタ(20)。
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PCT/FR2009/051932 WO2010040967A1 (fr) | 2008-10-09 | 2009-10-09 | Procede de fabrication de nanofils semiconducteurs a croissance laterale et transistors obtenus par ce procede |
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CN106711030A (zh) * | 2016-12-12 | 2017-05-24 | 陕西科技大学 | 一种利用二氧化锡催化生长Si纳米线的方法 |
CN106587068A (zh) * | 2016-12-12 | 2017-04-26 | 陕西科技大学 | 一种利用二氧化锡制备单根Si纳米线的方法 |
CN106637127A (zh) * | 2016-12-12 | 2017-05-10 | 陕西科技大学 | 一种利用二氧化锡制备Si纳米线多线阵列的方法 |
CN106835041A (zh) * | 2017-01-05 | 2017-06-13 | 浙江师范大学 | 一种低温诱导制备硅纳米线的方法 |
KR101940067B1 (ko) * | 2017-08-24 | 2019-01-18 | 건국대학교 산학협력단 | 중공와이어의 제조방법 |
US11004984B2 (en) * | 2019-09-23 | 2021-05-11 | International Business Machines Corporation | Low resistivity epitaxially formed contact region for nanosheet external resistance reduction |
FR3104173B1 (fr) * | 2019-12-06 | 2023-07-21 | Centre Nat Rech Scient | : Procédé de production de nanoclusters de silicium et/ou germanium présentant un moment dipolaire électrique et/ou magnétique permanent |
CN113140452A (zh) * | 2021-04-21 | 2021-07-20 | 北海惠科光电技术有限公司 | 氧化铟锡纳米线及其制备方法和薄膜晶体管 |
CN113968571B (zh) * | 2021-10-21 | 2023-06-06 | 南京大学 | 一种防串扰自限制的超细密排晶硅纳米线制备方法 |
CN114481308B (zh) * | 2021-12-29 | 2023-12-26 | 长春理工大学 | 一种用mbe横向生长纳米线的方法 |
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JP3740295B2 (ja) * | 1997-10-30 | 2006-02-01 | キヤノン株式会社 | カーボンナノチューブデバイス、その製造方法及び電子放出素子 |
US7445671B2 (en) * | 2000-06-29 | 2008-11-04 | University Of Louisville | Formation of metal oxide nanowire networks (nanowebs) of low-melting metals |
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US20060024227A1 (en) * | 2003-10-16 | 2006-02-02 | Shigeo Maruyama | Array of single-walled carbon nanotubes and process for preparaton thereof |
FR2888041B1 (fr) * | 2005-06-30 | 2008-02-22 | Centre Nat Rech Scient | Plaque active d'ecran plat |
KR101155176B1 (ko) * | 2005-07-12 | 2012-06-11 | 삼성전자주식회사 | 방향성이 조절된 단결정 와이어 및 이를 적용한트랜지스터의 제조방법 |
US7485908B2 (en) | 2005-08-18 | 2009-02-03 | United States Of America As Represented By The Secretary Of The Air Force | Insulated gate silicon nanowire transistor and method of manufacture |
KR101345456B1 (ko) * | 2007-08-29 | 2013-12-27 | 재단법인서울대학교산학협력재단 | 위치 선택적 수평형 나노와이어의 성장방법, 그에 의해형성된 나노와이어 및 이를 포함하는 나노소자 |
FR2928939B1 (fr) * | 2008-03-20 | 2010-04-30 | Ecole Polytech | Procede de production de nanostructures sur un substrat d'oxyde metallique, procede de depot de couches minces sur un tel substrat, et un dispositf forme de couches minces |
US8810009B2 (en) * | 2008-04-27 | 2014-08-19 | The Board Of Trustees Of The University Of Illinois | Method of fabricating a planar semiconductor nanowire |
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FR2937055B1 (fr) | 2011-04-22 |
US8652944B2 (en) | 2014-02-18 |
FR2937055A1 (fr) | 2010-04-16 |
JP2012505538A (ja) | 2012-03-01 |
US20110193053A1 (en) | 2011-08-11 |
EP2334848B1 (fr) | 2012-12-26 |
WO2010040967A1 (fr) | 2010-04-15 |
KR20110084178A (ko) | 2011-07-21 |
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