JP7045983B2 - 薄膜トランジスタの製造方法、薄膜トランジスタ及び表示装置 - Google Patents
薄膜トランジスタの製造方法、薄膜トランジスタ及び表示装置 Download PDFInfo
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- JP7045983B2 JP7045983B2 JP2018504672A JP2018504672A JP7045983B2 JP 7045983 B2 JP7045983 B2 JP 7045983B2 JP 2018504672 A JP2018504672 A JP 2018504672A JP 2018504672 A JP2018504672 A JP 2018504672A JP 7045983 B2 JP7045983 B2 JP 7045983B2
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- 239000010409 thin film Substances 0.000 title claims description 78
- 238000004519 manufacturing process Methods 0.000 title claims description 32
- 239000000758 substrate Substances 0.000 claims description 106
- 239000007769 metal material Substances 0.000 claims description 85
- 229920002120 photoresistant polymer Polymers 0.000 claims description 63
- 239000000463 material Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 41
- 239000011810 insulating material Substances 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000004065 semiconductor Substances 0.000 claims description 21
- 230000001590 oxidative effect Effects 0.000 claims description 10
- 238000000059 patterning Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 229910052735 hafnium Inorganic materials 0.000 claims description 7
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052715 tantalum Inorganic materials 0.000 claims description 7
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 7
- 150000002739 metals Chemical class 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 5
- 238000009832 plasma treatment Methods 0.000 claims description 5
- 238000007743 anodising Methods 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 12
- 150000004706 metal oxides Chemical class 0.000 description 12
- 239000010408 film Substances 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- 238000001039 wet etching Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- -1 Hf x O y Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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Description
2 ソース電極
3 ドレイン電極
4 ゲート電極
5 導電性金属層
10 ベース基板
20 フォトレジスト層
30 フォトレジスト層
101 ゲート絶縁層
102 絶縁材料層
200 半導体材料層
201 導電性金属材料層
202 導電性金属材料層
Claims (19)
- ベース基板に、チャネル領域、ソース電極コンタクト領域及びドレイン電極コンタクト領域を有する能動層を形成する工程と、
前記能動層の前記ベース基板から遠い側に、前記チャネル領域に対応する領域以外の領域に形成された第1フォトレジスト層を形成する工程と、
前記第1フォトレジスト層の前記ベース基板から遠い側に絶縁材料層を形成する工程と、
前記絶縁材料層の前記第1フォトレジスト層から遠い側に第1導電性金属材料層を形成する工程と、
リフトオフ法で、前記チャネル領域に対応する領域以外の前記第1フォトレジスト層、前記絶縁材料層及び前記第1導電性金属材料層を除去することにより、前記絶縁材料層の前記チャネル領域に対応する領域の部分が残存して第1ゲート絶縁層を形成し、前記第1導電性金属材料層の前記チャネル領域に対応する領域の部分が残存してゲート電極を形成する工程と、を含み、
前記能動層の前記チャネル領域と前記第1ゲート絶縁層との間に、前記能動層の前記チャネル領域に接触する第2ゲート絶縁層を形成する工程と、
前記第2ゲート絶縁層をエッチングして前記第2ゲート絶縁層の厚さを減少させる工程とをさらに含む、薄膜トランジスタの製造方法。 - 前記ソース電極コンタクト領域と前記チャネル領域との境界及び前記ドレイン電極コンタクト領域と前記チャネル領域との境界が、前記第1ゲート絶縁層及び前記ゲート電極のエッジと一致するように、前記能動層、前記第1ゲート絶縁層及び前記ゲート電極を形成する、請求項1に記載の薄膜トランジスタの製造方法。
- 前記ベース基板上の前記ゲート電極の投影と前記チャネル領域の投影とが重なり合い、前記ベース基板上の前記ゲート電極の投影と前記チャネル領域の投影とがお互いに同じ広がりを有するように、前記能動層、前記第1ゲート絶縁層及び前記ゲート電極を形成する、請求項1に記載の薄膜トランジスタの製造方法。
- 前記第2ゲート絶縁層が前記第1ゲート絶縁層よりも高い抵抗率を有し、
前記ベース基板上の前記第2ゲート絶縁層の投影と前記チャネル領域の投影とが重なり合い、前記ベース基板上の前記第2ゲート絶縁層の投影と前記チャネル領域の投影とがお互いに同じ広がりを有する、請求項1に記載の薄膜トランジスタの製造方法。 - 一つの工程でソース電極、ドレイン電極及び前記第2ゲート絶縁層を形成し、前記ソース電極及び前記ドレイン電極が前記能動層の前記ベース基板から遠い側に形成され、
前記ソース電極、前記ドレイン電極及び前記第2ゲート絶縁層を形成する工程は、
前記能動層の前記ベース基板から遠い側に、前記能動層の前記ソース電極コンタクト領域に対応する第1部分、前記能動層の前記ドレイン電極コンタクト領域に対応する第2部分、前記能動層の前記チャネル領域に対応する第3部分を含む第2導電性金属材料層を形成するステップと、
前記第2導電性金属材料層の前記能動層から遠い側に、前記チャネル領域に対応する領域以外の領域に形成された前記第1フォトレジスト層を形成するステップと、
前記第2導電性金属材料層の前記第3部分を酸化して前記第2ゲート絶縁層を形成し、前記第1部分が酸化されず前記ソース電極を形成し、前記第2部分が酸化されず前記ドレイン電極を形成するステップを含む、請求項4に記載の薄膜トランジスタの製造方法。 - 一つのパターニング化工程で前記能動層及び前記第2導電性金属材料層を形成し、
前記能動層及び前記第2導電性金属材料層を形成する工程は、
前記ベース基板に半導体材料層を形成するステップと、
前記半導体材料層の前記ベース基板から遠い側に第3導電性金属材料層を形成するステップと、
前記第3導電性金属材料層の前記半導体材料層から遠い側に、前記能動層に対応する領域に形成された第2フォトレジスト層を形成するステップと、
前記第3導電性金属材料層の前記第2フォトレジスト層に対応する領域以外の部分を除去することにより、前記第2導電性金属材料層を形成するステップと、
前記半導体材料層の前記第2フォトレジスト層に対応する領域以外の部分を除去することにより、前記能動層を形成するステップを、含む、請求項5に記載の薄膜トランジスタの製造方法。 - 第2導電性金属材料層の第3部分を酸化するステップは、陽極酸化、酸素雰囲気中でのアニール、酸素プラズマ処理、またはそれらの組み合わせによって行う、請求項5に記載の薄膜トランジスタの製造方法。
- 第2導電性金属材料層は、ハフニウム、タンタル、またはそれらの組み合わせを用いて形成される、請求項5に記載の薄膜トランジスタの製造方法。
- 第2ゲート絶縁層は、HfxOyまたはTaxOy、HfxOyNz、またはTaxOyNz、またはそれらの組み合わせを用いて形成され、ただし、x>0、y>0、z>0である、請求項4に記載の薄膜トランジスタの製造方法。
- 前記第1ゲート絶縁層は、SixOy、SixNy、SixOyNzまたはそれらの組み合わせを用いて形成され、ただし、x>0、y>0、z>0である、請求項1に記載の薄膜トランジスタの製造方法。
- ベース基板にチャネル領域、ソース電極コンタクト領域及びドレイン電極コンタクト領域を有する能動層と、
前記能動層の前記ベース基板から遠い側に位置する第1ゲート絶縁層と、
前記第1ゲート絶縁層の前記能動層から遠い側に位置するゲート電極と、を備える薄膜トランジスタであって、
前記ソース電極コンタクト領域と前記チャネル領域との間の境界、及び前記ドレイン電極コンタクト領域と前記チャネル領域との間の境界は、前記第1ゲート絶縁層及び前記ゲート電極のエッジと一致し、
前記薄膜トランジスタは、前記能動層の前記チャネル領域と前記第1ゲート絶縁層との間に前記能動層の前記チャネル領域に接触する第2ゲート絶縁層をさらに備え、前記ベース基板の表面に対する前記第2ゲート絶縁層の前記ベース基板から遠い表面の高さが、前記ベース基板の表面に対するソース電極またはドレイン電極の前記ベース基板から遠い表面の高さよりも小さくなるように、前記第2ゲート絶縁層の厚さは前記第2ゲート絶縁層をエッチングすることにより減少されている、薄膜トランジスタ。 - 前記ベース基板上の前記ゲート電極の投影と前記チャネル領域の投影とが重なり合い、前記ベース基板上の前記ゲート電極の投影と前記チャネル領域の投影とがお互いに同じ広がりを有する、請求項11に記載の薄膜トランジスタ。
- 前記第2ゲート絶縁層は、前記第1ゲート絶縁層よりも高い抵抗率を有し、
前記ベース基板上の前記第2ゲート絶縁層の投影と前記チャネル領域の投影とが重なり合い、前記ベース基板上の前記第2ゲート絶縁層の投影と前記チャネル領域の投影とがお互いに同じ広がりを有する、請求項11に記載の薄膜トランジスタ。 - M1を含む金属材料からなるソース電極およびドレイン電極をさらに備え、M1は単一金属または金属の組み合わせであり、
前記第2ゲート絶縁層は、M1OmNnを含む材料からなり、ただし、m>0、n≧0であり、
前記ソース電極、前記ドレイン電極及び前記第2ゲート絶縁層は同一層にある、請求項13に記載の薄膜トランジスタ。 - M1は、ハフニウムまたはタンタル、またはそれらの組み合わせを含み、
M1OmNnは、HfxOy、またはTaxOy、HfxOyNz、またはTaxOyNz、またはそれらの組み合わせを含む、請求項14に記載の薄膜トランジスタ。 - 前記ソース電極及び前記ドレイン電極は、前記能動層の前記ベース基板から遠い側に位置する、請求項14に記載の薄膜トランジスタ。
- 前記ベース基板上の前記ゲート電極の投影と前記チャネル領域、前記第1ゲート絶縁層及び前記第2ゲート絶縁層の投影とが重なり合い、
前記ベース基板上の前記ゲート電極の投影と前記チャネル領域、前記第1ゲート絶縁層及び前記第2ゲート絶縁層の投影とがお互いに同じ広がりを有する、請求項13に記載の薄膜トランジスタ。 - 前記ベース基板の表面に対する前記第2ゲート絶縁層の前記ベース基板から遠い表面の高さは、前記ベース基板の表面に対する前記ソース電極及び前記ドレイン電極の前記ベース基板から遠い表面の高さよりも小さい、請求項14に記載の薄膜トランジスタ。
- 請求項11乃至18のいずれか一項に記載の薄膜トランジスタを含む表示装置。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010186861A (ja) | 2009-02-12 | 2010-08-26 | Fujifilm Corp | 薄膜トランジスタ及びその製造方法 |
JP2011216603A (ja) | 2010-03-31 | 2011-10-27 | Toppan Printing Co Ltd | 薄膜トランジスタ及びその製造方法 |
JP2012160679A (ja) | 2011-02-03 | 2012-08-23 | Sony Corp | 薄膜トランジスタ、表示装置および電子機器 |
US20140191331A1 (en) | 2011-06-27 | 2014-07-10 | Pragmatic Printing Ltd | Transistor and Its Method of Manufacture |
JP2015195384A (ja) | 2011-07-08 | 2015-11-05 | 株式会社半導体エネルギー研究所 | 半導体装置 |
JP2015228014A (ja) | 2014-04-18 | 2015-12-17 | 株式会社半導体エネルギー研究所 | 表示装置および、その動作方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60167372A (ja) * | 1984-02-09 | 1985-08-30 | Seiko Epson Corp | 薄膜トランジスタの製造方法 |
KR970006254B1 (ko) * | 1994-03-18 | 1997-04-25 | 엘지전자 주식회사 | 박막트랜지스터의 제조방법 |
JPH0888363A (ja) * | 1994-09-16 | 1996-04-02 | Fujitsu Ltd | 半導体装置及びその製造方法 |
US6278130B1 (en) * | 1998-05-08 | 2001-08-21 | Seung-Ki Joo | Liquid crystal display and fabricating method thereof |
KR20060000508A (ko) * | 2004-06-29 | 2006-01-06 | 네오폴리((주)) | 보호막을 이용한 금속유도측면 결정화방법 및 이를 이용한 박막 트랜지스터의 제조방법 |
JP5127183B2 (ja) * | 2006-08-23 | 2013-01-23 | キヤノン株式会社 | アモルファス酸化物半導体膜を用いた薄膜トランジスタの製造方法 |
TWI475615B (zh) | 2010-07-21 | 2015-03-01 | Univ Nat Chiao Tung | 自我對準之頂閘極薄膜電晶體及其製法 |
GB2489682B (en) * | 2011-03-30 | 2015-11-04 | Pragmatic Printing Ltd | Electronic device and its method of manufacture |
US8569121B2 (en) * | 2011-11-01 | 2013-10-29 | International Business Machines Corporation | Graphene and nanotube/nanowire transistor with a self-aligned gate structure on transparent substrates and method of making same |
TW201322341A (zh) * | 2011-11-21 | 2013-06-01 | Ind Tech Res Inst | 半導體元件以及其製造方法 |
CN102522337B (zh) * | 2011-12-16 | 2014-07-02 | 北京大学 | 一种顶栅氧化锌薄膜晶体管的制备方法 |
JP6168795B2 (ja) * | 2012-03-14 | 2017-07-26 | 株式会社半導体エネルギー研究所 | 半導体装置の作製方法 |
CN103346089B (zh) | 2013-06-13 | 2016-10-26 | 北京大学深圳研究生院 | 一种自对准双层沟道金属氧化物薄膜晶体管及其制作方法 |
CN103730514B (zh) | 2014-01-23 | 2019-07-19 | 苏州大学 | 薄膜晶体管 |
KR102424445B1 (ko) * | 2016-05-03 | 2022-07-22 | 삼성디스플레이 주식회사 | 박막 트랜지스터 표시판 및 그 제조 방법 |
CN106024608B (zh) | 2016-05-26 | 2019-04-02 | 京东方科技集团股份有限公司 | 一种薄膜晶体管及其制作方法、衬底基板及显示装置 |
CN106128963B (zh) * | 2016-09-23 | 2019-07-23 | 京东方科技集团股份有限公司 | 薄膜晶体管及制备方法、阵列基板及制备方法、显示面板 |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010186861A (ja) | 2009-02-12 | 2010-08-26 | Fujifilm Corp | 薄膜トランジスタ及びその製造方法 |
JP2011216603A (ja) | 2010-03-31 | 2011-10-27 | Toppan Printing Co Ltd | 薄膜トランジスタ及びその製造方法 |
JP2012160679A (ja) | 2011-02-03 | 2012-08-23 | Sony Corp | 薄膜トランジスタ、表示装置および電子機器 |
US20140191331A1 (en) | 2011-06-27 | 2014-07-10 | Pragmatic Printing Ltd | Transistor and Its Method of Manufacture |
JP2015195384A (ja) | 2011-07-08 | 2015-11-05 | 株式会社半導体エネルギー研究所 | 半導体装置 |
JP2015228014A (ja) | 2014-04-18 | 2015-12-17 | 株式会社半導体エネルギー研究所 | 表示装置および、その動作方法 |
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