JP5627071B2 - 半導体装置の作製方法 - Google Patents
半導体装置の作製方法 Download PDFInfo
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- JP5627071B2 JP5627071B2 JP2009195539A JP2009195539A JP5627071B2 JP 5627071 B2 JP5627071 B2 JP 5627071B2 JP 2009195539 A JP2009195539 A JP 2009195539A JP 2009195539 A JP2009195539 A JP 2009195539A JP 5627071 B2 JP5627071 B2 JP 5627071B2
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- oxygen
- thin film
- layer
- film transistor
- film
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- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
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- 150000002831 nitrogen free-radicals Chemical class 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
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- 150000007524 organic acids Chemical class 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 229940063666 oxygen 90 % Drugs 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- OFIYHXOOOISSDN-UHFFFAOYSA-N tellanylidenegallium Chemical compound [Te]=[Ga] OFIYHXOOOISSDN-UHFFFAOYSA-N 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78696—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
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- H01L21/02321—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer
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- H01L21/0234—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour treatment by exposure to a plasma
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/24—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only semiconductor materials not provided for in groups H01L29/16, H01L29/18, H01L29/20, H01L29/22
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66969—Multistep manufacturing processes of devices having semiconductor bodies not comprising group 14 or group 13/15 materials
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
- H01L29/78693—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate the semiconducting oxide being amorphous
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Plasma & Fusion (AREA)
- Thin Film Transistor (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Electroluminescent Light Sources (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Shift Register Type Memory (AREA)
Description
本実施の形態では、薄膜トランジスタ及びその作製工程について、図5乃至図8を用いて説明する。
本実施の形態は、本発明の一形態のマルチゲート構造の薄膜トランジスタの例である。従って、他は実施の形態1と同様に行うことができ、実施の形態1と同一部分又は同様な機能を有する部分、及び工程の繰り返しの説明は省略する。
本実施の形態は、本発明の一形態の薄膜トランジスタにおいてソース領域及びドレイン領域を積層する例である。従って、他は実施の形態1又は実施の形態2と同様に行うことができ、実施の形態1又は実施の形態2と同一部分又は同様な機能を有する部分、及び工程の繰り返しの説明は省略する。
本実施の形態は、実施の形態1において、薄膜トランジスタの形状及び作製方法が一部異なる例である。従って、他は実施の形態1と同様に行うことができ、実施の形態1と同一部分又は同様な機能を有する部分、及び工程の繰り返しの説明は省略する。
本実施の形態では、本発明の半導体装置の一例である表示装置において、同一基板上に少なくとも駆動回路の一部と、画素部に配置する薄膜トランジスタを作製する例について以下に説明する。
ここでは、少なくともゲート絶縁層と酸素過剰酸化物半導体層の積層を大気に触れることなく、連続成膜を行う逆スタガ型の薄膜トランジスタの作製例を以下に示す。ここでは、連続成膜を行う工程までの工程を示し、その後の工程は、実施の形態1乃至実施の形態4のいずれか一に従って薄膜トランジスタを作製すればよい。
本発明の薄膜トランジスタを作製し、該薄膜トランジスタを画素部、さらには駆動回路に用いて表示機能を有する半導体装置(表示装置ともいう)を作製することができる。また、本発明の薄膜トランジスタを駆動回路の一部または全体を、画素部と同じ基板上に一体形成し、システムオンパネルを形成することができる。
本実施の形態では、本発明の半導体装置として電子ペーパーの例を示す。
本実施の形態では、本発明の半導体装置として発光表示装置の例を示す。表示装置の有する表示素子としては、ここではエレクトロルミネッセンスを利用する発光素子を用いて示す。エレクトロルミネッセンスを利用する発光素子は、発光材料が有機化合物であるか、無機化合物であるかによって区別され、一般的に、前者は有機EL素子、後者は無機EL素子と呼ばれている。
次に、本発明の半導体装置の一形態である表示パネルの構成について、以下に示す。本実施の形態では、表示素子として液晶素子を有する液晶表示装置の一形態である液晶表示パネル(液晶パネルともいう)、表示素子として発光素子を有する半導体装置の一形態である発光表示パネル(発光パネルともいう)について説明する。
本発明の半導体装置は、電子ペーパーとして適用することができる。電子ペーパーは、情報を表示するものであればあらゆる分野の電子機器に用いることが可能である。例えば、電子ペーパーを用いて、電子書籍(電子ブック)、ポスター、電車などの乗り物の車内広告、クレジットカード等の各種カードにおける表示等に適用することができる。電子機器の一例を図31、図32に示す。
本発明に係る半導体装置は、さまざまな電子機器(遊技機も含む)に適用することができる。電子機器としては、例えば、テレビジョン装置(テレビ、またはテレビジョン受信機ともいう)、コンピュータ用などのモニタ、デジタルカメラ、デジタルビデオカメラ、デジタルフォトフレーム、携帯電話機(携帯電話、携帯電話装置ともいう)、携帯型ゲーム機、携帯情報端末、音響再生装置、パチンコ機などの大型ゲーム機などが挙げられる。
本実施の形態は、本発明の薄膜トランジスタにおいてチャネル保護型の薄膜トランジスタの例である。従って、他は実施の形態1又は実施の形態2と同様に行うことができ、実施の形態1又は実施の形態2と同一部分又は同様な機能を有する部分、及び工程の繰り返しの説明は省略する。
Claims (2)
- 基板上にゲート電極層を形成し、
前記ゲート電極層上にゲート絶縁層を形成し、
前記ゲート絶縁層の表面に第1の酸素ラジカル処理を行うことで、前記ゲート絶縁層に酸素をドープし、
前記第1の酸素ラジカル処理を行った後、前記ゲート絶縁層上にスパッタ法により酸化物半導体層を形成し、
前記酸化物半導体層に熱を加えることで、前記ゲート絶縁層中の酸素を前記酸化物半導体層に移動させ、
前記熱を加えた後、前記酸化物半導体層の表面に第2の酸素ラジカル処理を行い、
前記第2の酸素ラジカル処理を行った後、前記酸化物半導体層上に絶縁層を形成することを特徴とする半導体装置の作製方法。 - 基板上にゲート電極層を形成し、
前記ゲート電極層上にゲート絶縁層を形成し、
前記ゲート絶縁層の表面に第1の酸素ラジカル処理を行うことで、前記ゲート絶縁層に酸素をドープし、
前記第1の酸素ラジカル処理を行った後、前記ゲート絶縁層上にスパッタ法により酸化物半導体層を形成し、
前記酸化物半導体層に200℃〜600℃の熱処理をすることで、前記ゲート絶縁層中の酸素を前記酸化物半導体層に移動させ、
前記熱を加えた後、前記酸化物半導体層の表面に第2の酸素ラジカル処理を行うことを特徴とする半導体装置の作製方法。
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JP5627071B2 (ja) | 2008-09-01 | 2014-11-19 | 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 |
KR101681483B1 (ko) | 2008-09-12 | 2016-12-02 | 삼성디스플레이 주식회사 | 박막 트랜지스터 기판 및 그 제조 방법 |
TWI487104B (zh) | 2008-11-07 | 2015-06-01 | Semiconductor Energy Lab | 半導體裝置和其製造方法 |
US8441007B2 (en) | 2008-12-25 | 2013-05-14 | Semiconductor Energy Laboratory Co., Ltd. | Display device and manufacturing method thereof |
EP2449593B1 (en) | 2009-07-03 | 2019-08-28 | Semiconductor Energy Laboratory Co, Ltd. | Method for manufacturing semiconductor device |
KR101820176B1 (ko) | 2009-07-10 | 2018-01-18 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치의 제작 방법 |
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JP2018026591A (ja) | 2018-02-15 |
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US20160079439A1 (en) | 2016-03-17 |
US9196713B2 (en) | 2015-11-24 |
JP5913466B2 (ja) | 2016-04-27 |
JP2024026070A (ja) | 2024-02-28 |
US8822264B2 (en) | 2014-09-02 |
JP6510611B2 (ja) | 2019-05-08 |
US10256349B2 (en) | 2019-04-09 |
US9911865B2 (en) | 2018-03-06 |
JP2022000896A (ja) | 2022-01-04 |
JP2014239243A (ja) | 2014-12-18 |
US20150050774A1 (en) | 2015-02-19 |
US20200381565A1 (en) | 2020-12-03 |
US20120122277A1 (en) | 2012-05-17 |
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