JP7124059B2 - 半導体デバイス、トランジスタ、および金属酸化物半導体デバイスを接触させるための関連する方法 - Google Patents
半導体デバイス、トランジスタ、および金属酸化物半導体デバイスを接触させるための関連する方法 Download PDFInfo
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- 239000003989 dielectric material Substances 0.000 claims description 4
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910003087 TiOx Inorganic materials 0.000 claims description 3
- 229910007667 ZnOx Inorganic materials 0.000 claims description 3
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001925 ruthenium oxide Inorganic materials 0.000 claims 2
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims 2
- 239000004020 conductor Substances 0.000 description 141
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- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
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- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
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- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
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Description
本出願は、米国特許法§119(e)の下に、2017年8月31日に出願した米国仮特許出願第62/552,809号の利益を主張するものであり、その開示は、本参照によりその全体が本明細書に組み込まれている。また、本出願は、2018年8月30日に出願した、「SEMICONDUCTOR DEVICES,TRANSISTORS,AND RELATED METHODS FOR CONTACTING METAL OXIDE SEMICONDUCTOR DEVICES」という名称の米国特許出願第16/118,064号の優先権を主張するものであり、この出願は、上記米国仮特許出願の通常の変更である。
Claims (16)
- 第1の導電線と、
前記第1の導電線の上にある第2の導電線と、
前記第1の導電線と前記第2の導電線との間のトランジスタであって、
少なくとも1つのゲート電極と、
酸化物半導体材料を含むチャネルと、
前記チャネルの前記酸化物半導体材料と前記第1の導電線とに物理的に接触するソース・コンタクトであって、前記第1の導電線の上面の全体に渡って連続的に延伸し、
酸化物半導体材料との界面にあり、酸化ルテニウムを含む第1の領域と、
前記第1の領域と前記第1の導電線の前記上面との間にあり、前記第1の導電線と前記第1の領域の前記酸化ルテニウムとに物理的に直接接触する元素ルテニウムを含む第2の領域と
を含む前記ソース・コンタクトと、
前記チャネルの前記酸化物半導体材料と前記第2の導電線の下面とに物理的に接触するドレイン・コンタクトと
を含む前記トランジスタと
を含む、半導体デバイス。 - 前記酸化物半導体材料は、ZTO、IZO、ZnOx、IGZO、InOx、In2O3、SnO2、TiOx、ZnxOyNz、MgxZnyOz、InxZnyOz、InxGayZnzOa、ZrxInyZnzOa、HfxInyZnzOa、SnxInyZnzOa、AlxSnyInzZnaOd、SixInyZnzOa、ZnxSnyOz、AlxZnySnzOa、GaxZnySnzOa、ZrxZnySnzOa、およびInGaSiOを含むグループから選択される、請求項1に記載の半導体デバイス。
- 第1の導電線と、
前記第1の導電線の上にある第2の導電線と、
トランジスタであって、
ゲート電極と、
前記第2の導電線の下にあるドレイン・コンタクトと、
前記ドレイン・コンタクト前記の下にあり、少なくとも部分的に前記第1の導電線内に埋め込まれるソース・コンタクトと、
前記ドレイン・コンタクトおよび前記ソース・コンタクトと動作可能に結合された酸化物半導体材料を含むチャネル領域であって、前記ドレイン・コンタクトまたは前記ソース・コンタクトのうちの少なくとも一方は、前記チャネル領域と非ショットキー界面を形成する材料を含む、前記チャネル領域と
を含む前記トランジスタと
を含む、半導体デバイス。 - 前記ソース・コンタクトは、前記第1の導電線とは異なる材料組成を有し、
前記ドレイン・コンタクトは、前記第2の導電線とは異なる材料組成を有する、
請求項1に記載の半導体デバイス。 - 前記トランジスタは垂直配向で構成される、請求項1に記載の半導体デバイス。
- 前記トランジスタと動作可能に結合された記憶素子を含むメモリ・セルをさらに含む、
請求項1に記載の半導体デバイス。 - トランジスタであって、
酸化物半導体材料を含むチャネルと、
前記チャネルの垂直方向に上にあり、物理的に接触するドレイン・コンタクトであって、酸化インジウム・スズ(ITO)を含む、前記ドレイン・コンタクトと、
前記チャネルの下にあり、物理的に接触するソース・コンタクトであって、追加のITOを含む前記ソース・コンタクトと、
前記チャネルに水平方向に隣接し、前記チャネルの垂直方向の境界内に制限される少なくとも1つのゲート電極であって、前記ソース・コンタクトの側面と同一平面の側面を有する、前記少なくとも1つのゲート電極と、
前記ソース・コンタクトの垂直方向に下にあり、直接物理的に接触する第1の導電線であって、前記ソース・コンタクトとは異なる材料組成を有する、前記第1の導電線と、
前記ドレイン・コンタクトの垂直方向に上にあり、直接物理的に接触する第2の導電線であって、前記ドレイン・コンタクトとは異なる材料組成を有する、前記第2の導電線と
を含む、前記トランジスタ
を含む、半導体デバイス。 - 前記少なくとも1つのゲート電極は唯一のゲート電極を含む、請求項7に記載の半導体 デバイス。
- 前記少なくとも1つのゲート電極は二つのゲート電極を含む、請求項7に記載の半導体 デバイス。
- 前記チャネルは非晶質酸化物半導体材料を含む、請求項7に記載の半導体デバイス。
- 前記トランジスタと動作可能に結合された記憶素子を更に含み、前記トランジスタは、前記記憶素子に対するアクセス・デバイス・トランジスタを含む、請求項7に記載の半導体デバイス。
- 前記トランジスタは、メモリ・セルのデッキおよび配線工程経路指定構成要素からなる グループから選択されるメモリ構成要素のための選択デバイスである、請求項7に記載の半導体デバイス。
- トランジスタを形成する方法であって、
第1の導電線の上にある誘電材料内にゲート電極を形成することと、
前記誘電材料内のトレンチであって、前記ゲート電極の側面および前記第1の導電線の上面を露出する前記トレンチを形成することと、
前記トレンチ内および前記第1の導電線上にルテニウムおよび酸化インジウム・スズ(ITO)のうちの1つ以上含むソース・コンタクトを形成することであって、前記ソース・コンタクトは前記第1の導電線とは異なる材料組成を有することと、
前記トレンチ内及び前記ソース・コンタクト上に酸化物半導体材料を含むチャネルを形成することであって、前記ソース・コンタクトと前記チャネルとの間の界面は非ショットキー界面を含むことと、
前記チャネル上にドレイン・コンタクトを形成することと
を含む、方法。 - 前記ソース・コンタクトおよび前記ドレイン・コンタクトは同じ材料組成を有する、請求項13に記載の方法。
- ドレイン・コンタクト上に第2の導電線を形成することであって、前記第2の導電線は、前記第1の導電線に直交して水平方向に延伸し、前記ドレイン・コンタクトとは異なる材料組成を有することをさらに含む、請求項13に記載の方法。
- 前記酸化物半導体材料は、ZTO、IZO、IGZO、In2O3、SnO2、およびInGaSiOを含むグループから選択される、請求項13に記載の方法。
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JP2015111663A (ja) | 2013-11-01 | 2015-06-18 | 株式会社半導体エネルギー研究所 | 半導体装置およびその作製方法 |
JP2015231025A (ja) | 2014-06-06 | 2015-12-21 | マイクロン テクノロジー, インク. | 半導体装置及びその製造方法 |
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US20190067437A1 (en) | 2019-02-28 |
US11908913B2 (en) | 2024-02-20 |
US20220254896A1 (en) | 2022-08-11 |
KR20210149196A (ko) | 2021-12-08 |
KR102402945B1 (ko) | 2022-05-30 |
CN111052395A (zh) | 2020-04-21 |
US11335788B2 (en) | 2022-05-17 |
EP3676877A4 (en) | 2021-09-01 |
WO2019046630A1 (en) | 2019-03-07 |
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