JP7060205B2 - 薄膜トランジスタ、当該薄膜トランジスタを有する表示基板及び表示パネル並びにその製造方法 - Google Patents
薄膜トランジスタ、当該薄膜トランジスタを有する表示基板及び表示パネル並びにその製造方法 Download PDFInfo
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- JP7060205B2 JP7060205B2 JP2017550669A JP2017550669A JP7060205B2 JP 7060205 B2 JP7060205 B2 JP 7060205B2 JP 2017550669 A JP2017550669 A JP 2017550669A JP 2017550669 A JP2017550669 A JP 2017550669A JP 7060205 B2 JP7060205 B2 JP 7060205B2
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- film transistor
- amorphous carbon
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- 239000010409 thin film Substances 0.000 title claims description 96
- 239000000758 substrate Substances 0.000 title claims description 83
- 238000004519 manufacturing process Methods 0.000 title claims description 52
- 239000000463 material Substances 0.000 claims description 93
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- 238000000034 method Methods 0.000 claims description 63
- 239000004065 semiconductor Substances 0.000 claims description 60
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- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 23
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 14
- 229910052738 indium Inorganic materials 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 238000001312 dry etching Methods 0.000 claims description 11
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 11
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- 239000010936 titanium Substances 0.000 description 3
- TYHJXGDMRRJCRY-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) tin(4+) Chemical compound [O-2].[Zn+2].[Sn+4].[In+3] TYHJXGDMRRJCRY-UHFFFAOYSA-N 0.000 description 3
- -1 30% Chemical class 0.000 description 2
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910004304 SiNy Inorganic materials 0.000 description 1
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
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- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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Description
Claims (20)
- 薄膜トランジスタであって、
ベース基板と、
前記ベース基板上に位置し、チャネル領域と第1電極接触領域と第2電極接触領域を含む活性層と、
前記第1電極接触領域のベース基板から離れる側に位置し、非晶質炭素材料から作製される第1電極、及び、前記第2電極接触領域のベース基板から離れる側に位置し、非晶質炭素材料から作製される第2電極とを含み、前記第1電極、第2電極の厚さは、200nm~500nmの範囲内にあり、
前記第1電極は、ソース電極であり、前記第2電極は、ドレイン電極であり、前記薄膜トランジスタは、トップゲート型薄膜トランジスタである、薄膜トランジスタ。 - 前記チャネル領域のベース基板から離れる側に位置するゲート絶縁層と、
前記ゲート絶縁層のチャネル領域から離れる側に位置するゲート電極層とを更に含む請求項1に記載の薄膜トランジスタ。 - 前記活性層のベース基板に接近する側に位置するバッファ層と、
前記バッファ層のチャネル領域から離れる側のチャネル領域対応領域に位置し、前記チャネル領域を光から遮断するための遮光層とを更に含む請求項2に記載の薄膜トランジスタ。 - 前記非晶質炭素材料は、水素化非晶質炭素材料を含む請求項1に記載の薄膜トランジスタ。
- 前記活性層は、M1OaNb(M1:単一金属又は金属の組み合わせ、a>0、b≧0)を含む材料から作製される請求項1に記載の薄膜トランジスタ。
- 前記活性層は、酸化インジウムガリウム亜鉛から作製される請求項5に記載の薄膜トランジスタ。
- 前記ゲート電極層のベース基板から離れる側に位置するパッシベーション層と、
前記パッシベーション層のベース基板から離れる側に位置する画素電極層とを更に含む請求項2に記載の薄膜トランジスタ。 - 前記活性層の厚さは、40nm~50nmの範囲内にある請求項1に記載の薄膜トランジスタ。
- 請求項1~8のいずれか一項に記載の薄膜トランジスタを含む表示機器。
- 薄膜トランジスタの製造方法であって、
チャネル領域、第1電極接触領域と第2電極接触領域を含む活性層をベース基板上に形成する活性層形成段階と、
非晶質炭素材料から作製される第1電極を前記第1電極接触領域のベース基板から離れる側に形成する第1電極形成段階と、
非晶質炭素材料から作製される第2電極を前記第2電極接触領域のベース基板から離れる側に形成する第2電極形成段階とを含み、前記第1電極、第2電極の厚さは、200nm~500nmの範囲内にあり、
前記第1電極は、ソース電極であり、前記第2電極は、ドレイン電極であり、前記薄膜トランジスタは、トップゲート型薄膜トランジスタである、薄膜トランジスタの製造方法。 - 活性層形成段階、第1電極形成段階、第2電極形成段階は、
半導体材料層と非晶質炭素材料層をベース基板に順に形成し、
前記半導体材料層をパターニングして活性層を形成し、及び
前記非晶質炭素材料層をパターニングして第1電極と第2電極を形成することを含む請求項10に記載の薄膜トランジスタの製造方法。 - 単一マスクで半導体材料層と非晶質炭素材料層をパターニングして活性層、第1電極と第2電極を形成する請求項11に記載の薄膜トランジスタの製造方法。
- 半導体材料をベース基板に蒸着させて半導体材料層を形成する段階と、非晶質炭素材料を前記半導体材料層に蒸着させて非晶質炭素材料層を前記半導体材料層のベース基板から離れる側に形成する段階によって、半導体材料層と非晶質炭素材料層を形成する請求項11に記載の薄膜トランジスタの製造方法。
- マグネトロンスパッタリングプロセスによって非晶質材料を蒸着させる請求項11に記載の薄膜トランジスタの製造方法。
- 単一マスクによる活性層、第1電極及び第2電極形成段階は、
半導体材料をベース基板に蒸着させて半導体材料層を形成する段階と、
非晶質炭素材料を前記半導体材料層に蒸着させて、前記半導体材料層のベース基板から離れる側に非晶質炭素材料層を形成する段階と、
前記非晶質炭素材料層の半導体材料層から離れる側にフォトレジスト層を形成する段階と、
ハーフトーンマスク又はグレイトーンマスクでフォトレジスト層を露光すると共に、露光後のフォトレジスト層を現像することによって、チャネル領域に対応し一部露光される第1部分と、第1電極接触領域と第2電極接触領域に対応し実質上露光されない第2部分と、完全に露光され、第1部分、第2部分以外の第3部分とを含むフォトレジストパターンを取得し、第3部分のフォトレジスト材料を除去する段階と、
第3部分の半導体材料層と非晶質炭素材料層を除去して活性層を形成する段階と、
第1部分のフォトレジスト層を除去すると共に、第2部分のフォトレジスト層を保留することによって、第1部分の非晶質炭素材料層を露出させる段階と、
第1部分の非晶質炭素材料層を除去して第1電極と第2電極を形成する段階とを含む請求項12に記載の薄膜トランジスタの製造方法。 - 前記半導体材料は、酸化インジウムガリウムスズを含み、
15体積%~30体積%の範囲内の酸素を含む雰囲気で、前記半導体材料を気相蒸着処理によってベース基板に蒸着させる請求項13または15に記載の薄膜トランジスタの製造方法。 - 酸素を用いたドライエッチングによって第1部分と第3部分の非晶質炭素材料層を除去する請求項15に記載の薄膜トランジスタの製造方法。
- 灰化によって第1部分のフォトレジスト層を除去する請求項15に記載の薄膜トランジスタの製造方法。
- 活性層、第1電極及び第2電極形成段階の後に、
230度~400度の範囲内のアニール温度で前記活性層をアニールすることを更に含む請求項10に記載の薄膜トランジスタの製造方法。 - 前記活性層は、M1OaNb(M1:単一金属又は金属の組み合わせ、a>0、b≧0)を含む半導体材料から作製される請求項10に記載の薄膜トランジスタの製造方法。
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CN105093763A (zh) * | 2015-08-19 | 2015-11-25 | 京东方科技集团股份有限公司 | 一种阵列基板、其制作方法、液晶显示面板及显示装置 |
CN105575819A (zh) | 2016-02-26 | 2016-05-11 | 华南理工大学 | 一种顶栅结构金属氧化物薄膜晶体管及其制备方法 |
US10468434B2 (en) * | 2016-04-08 | 2019-11-05 | Innolux Corporation | Hybrid thin film transistor structure, display device, and method of making the same |
CN109923698B (zh) * | 2016-09-01 | 2024-04-26 | 特斯拉公司 | 储能器件电极制造的方法和装置 |
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CN108474986A (zh) | 2018-08-31 |
CN108474986B (zh) | 2022-07-05 |
EP3516453A4 (en) | 2020-05-06 |
US20180254328A1 (en) | 2018-09-06 |
US10204997B2 (en) | 2019-02-12 |
EP3516453A1 (en) | 2019-07-31 |
JP2019532484A (ja) | 2019-11-07 |
WO2018053707A1 (en) | 2018-03-29 |
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