JP4115990B2 - 薄膜トランジスタ及びその製造方法 - Google Patents
薄膜トランジスタ及びその製造方法 Download PDFInfo
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- JP4115990B2 JP4115990B2 JP2004377842A JP2004377842A JP4115990B2 JP 4115990 B2 JP4115990 B2 JP 4115990B2 JP 2004377842 A JP2004377842 A JP 2004377842A JP 2004377842 A JP2004377842 A JP 2004377842A JP 4115990 B2 JP4115990 B2 JP 4115990B2
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- 239000010409 thin film Substances 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000010408 film Substances 0.000 claims description 146
- 239000010410 layer Substances 0.000 claims description 113
- 229910052751 metal Inorganic materials 0.000 claims description 85
- 239000002184 metal Substances 0.000 claims description 85
- 238000000034 method Methods 0.000 claims description 71
- 239000003054 catalyst Substances 0.000 claims description 63
- 238000001914 filtration Methods 0.000 claims description 61
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 47
- 239000000758 substrate Substances 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 31
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 30
- 239000004065 semiconductor Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 238000009792 diffusion process Methods 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 6
- 229910021332 silicide Inorganic materials 0.000 claims description 6
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 6
- 239000002356 single layer Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052787 antimony Inorganic materials 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 238000000059 patterning Methods 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 description 42
- 230000008025 crystallization Effects 0.000 description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 239000013078 crystal Substances 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 238000005229 chemical vapour deposition Methods 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 238000006356 dehydrogenation reaction Methods 0.000 description 4
- 238000007715 excimer laser crystallization Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02422—Non-crystalline insulating materials, e.g. glass, polymers
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02494—Structure
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- H01L21/02518—Deposited layers
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- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
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- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/4908—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET for thin film semiconductor, e.g. gate of TFT
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66742—Thin film unipolar transistors
- H01L29/6675—Amorphous silicon or polysilicon transistors
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- 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
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ceramic Engineering (AREA)
- Optics & Photonics (AREA)
- Materials Engineering (AREA)
- Recrystallisation Techniques (AREA)
- Thin Film Transistor (AREA)
- Formation Of Insulating Films (AREA)
Description
104 フィルターリング酸化膜
105 キャッピング膜
106 金属触媒層
107 第1熱処理
108 第2熱処理
Claims (14)
- 絶縁基板を準備するステップと、
前記基板上に非晶質シリコン層を形成するステップと、
前記非晶質シリコン層上にフィルターリング酸化膜、及びシリコン窒化膜またはシリコン窒化膜とシリコン酸化膜の複層構造であるキャッピング膜を形成するステップと、
前記キャッピング膜上に金属触媒層を形成するステップと、
前記基板を第1熱処理して前記金属触媒層の金属触媒を前記キャッピング膜及びフィルターリング酸化膜を介して拡散させ、フィルターリング酸化膜と非晶質シリコン層の界面へ移動させるステップと、
前記基板を第2熱処理して拡散された金属触媒により非晶質シリコン層を多結晶シリコン層に結晶化するステップと、
前記キャッピング膜を除去するステップと、
前記フィルターリング酸化膜及び多結晶シリコン層をパターニングして半導体層を形成するステップと、
前記基板上にゲート絶縁膜を形成するステップと、
前記基板上にゲート電極を形成し、層間絶縁膜及びソース/ドレーン電極を形成するステップと、を含むことを特徴とする、薄膜トランジスタの製造方法。 - 前記フィルターリング酸化膜は、熱酸化膜または自然酸化膜であることを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記フィルターリング酸化膜は、1乃至20Åの厚さで形成することを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記キャッピング膜は、1乃至2000Åの厚さで形成することを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記ゲート絶縁膜を形成するステップは、前記フィルターリング酸化膜のパターンが形成された基板上に酸化膜または窒化膜からなる単層または複層を形成するステップであることを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記第1熱処理は、200乃至800℃の温度範囲で熱処理することを特徴とする、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熱処理は、400乃至1300℃の温度範囲で熱処理することを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記第1熱処理または第2熱処理は、炉工程、RTA工程、UV工程またはレーザー工程のうち、いずれかの一つ以上の工程を用いることを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記金属触媒は、Ni、Pd、Ti、Ag、Au、Al、Sn、Sb、Cu、Co、Mo、Tr、Ru、Rh、CdまたはPtのうち、いずれかの一つ以上であることを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記基板を第2熱処理して拡散された金属触媒により非晶質シリコン層を多結晶シリコン層に結晶化するステップは、前記拡散された金属触媒が金属シリサイドを形成し、前記金属シリサイドにより前記非晶質シリコン層が多結晶シリコン層に結晶化するステップであることを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記フィルターリング酸化膜は、金属触媒の拡散を妨害して所定の微量のみがフィルターリング酸化膜と非晶質シリコン層の界面に拡散するようにすることを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記フィルターリング酸化膜は、酸素プラズマを用いて100乃至1000Wのパワー、10乃至1000秒の時間、70乃至400Paの圧力で形成し、または酸素を含む大気や真空の中に露出させることによって形成することを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記第1熱処理をするステップまたは第2熱処理をするステップ以後、前記金属触媒層及びキャッピング膜を除去する工程をさらに含むことを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
- 前記第1熱処理をするステップ以後に前記金属触媒層を除去し、前記第2熱処理をするステップ以後に前記キャッピング膜を除去する工程をさらに含むことを特徴とする、請求項1に記載の薄膜トランジスタの製造方法。
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TW264575B (ja) * | 1993-10-29 | 1995-12-01 | Handotai Energy Kenkyusho Kk | |
KR20060099870A (ko) * | 2005-03-15 | 2006-09-20 | 삼성전자주식회사 | 캡핑막을 구비하는 박막 트랜지스터 및 그 제조 방법 |
US20060270066A1 (en) * | 2005-04-25 | 2006-11-30 | Semiconductor Energy Laboratory Co., Ltd. | Organic transistor, manufacturing method of semiconductor device and organic transistor |
US8318554B2 (en) * | 2005-04-28 | 2012-11-27 | Semiconductor Energy Laboratory Co., Ltd. | Method of forming gate insulating film for thin film transistors using plasma oxidation |
US7785947B2 (en) * | 2005-04-28 | 2010-08-31 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor device comprising the step of forming nitride/oxide by high-density plasma |
KR100653853B1 (ko) * | 2005-05-24 | 2006-12-05 | 네오폴리((주)) | 비금속 씨드 에피 성장을 이용한 비정질 반도체 박막의결정화 방법 및 이를 이용한 다결정 박막 트랜지스터의제조방법 |
KR100646937B1 (ko) * | 2005-08-22 | 2006-11-23 | 삼성에스디아이 주식회사 | 다결정 실리콘 박막트랜지스터 및 그 제조방법 |
KR100770268B1 (ko) * | 2006-05-18 | 2007-10-25 | 삼성에스디아이 주식회사 | 박막트랜지스터의 제조방법 |
KR101306137B1 (ko) * | 2006-06-29 | 2013-09-09 | 엘지디스플레이 주식회사 | 유기 전계발광 표시장치 및 액정표시장치 |
KR20080015666A (ko) | 2006-08-16 | 2008-02-20 | 삼성전자주식회사 | 박막 트랜지스터 표시판의 제조 방법 |
KR100770266B1 (ko) | 2006-11-10 | 2007-10-25 | 삼성에스디아이 주식회사 | 유기전계발광표시장치 및 그 제조방법 |
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KR20080111693A (ko) * | 2007-06-19 | 2008-12-24 | 삼성모바일디스플레이주식회사 | 다결정 실리콘층의 제조 방법, 이를 이용하여 형성된박막트랜지스터, 그의 제조방법, 및 이를 포함하는유기전계발광표시장치 |
KR100889626B1 (ko) * | 2007-08-22 | 2009-03-20 | 삼성모바일디스플레이주식회사 | 박막트랜지스터, 그의 제조방법, 이를 구비한유기전계발광표시장치, 및 그의 제조방법 |
KR100889627B1 (ko) * | 2007-08-23 | 2009-03-20 | 삼성모바일디스플레이주식회사 | 박막트랜지스터, 그의 제조방법, 및 이를 구비한유기전계발광표시장치 |
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KR100974610B1 (ko) * | 2007-12-28 | 2010-08-06 | 주식회사 비아트론 | 박막 트랜지스터 제조방법 |
KR101015847B1 (ko) * | 2008-01-18 | 2011-02-23 | 삼성모바일디스플레이주식회사 | 박막트랜지스터와 그 제조방법 및 이를 구비한유기전계발광표시장치 |
KR100982310B1 (ko) | 2008-03-27 | 2010-09-15 | 삼성모바일디스플레이주식회사 | 박막트랜지스터, 그의 제조방법, 및 이를 포함하는유기전계발광표시장치 |
KR100989136B1 (ko) * | 2008-04-11 | 2010-10-20 | 삼성모바일디스플레이주식회사 | 박막트랜지스터, 그의 제조방법, 및 이를 포함하는유기전계발광표시장치 |
KR101015844B1 (ko) * | 2008-06-19 | 2011-02-23 | 삼성모바일디스플레이주식회사 | 박막트랜지스터, 그의 제조방법 및 그를 구비하는유기전계발광표시장치의 제조방법 |
KR101002666B1 (ko) * | 2008-07-14 | 2010-12-21 | 삼성모바일디스플레이주식회사 | 박막트랜지스터, 그의 제조방법, 및 이를 포함하는유기전계발광표시장치 |
KR101049799B1 (ko) * | 2009-03-03 | 2011-07-15 | 삼성모바일디스플레이주식회사 | 박막트랜지스터, 그의 제조방법 및 이를 포함하는 유기전계발광표시장치 |
KR101056428B1 (ko) | 2009-03-27 | 2011-08-11 | 삼성모바일디스플레이주식회사 | 박막트랜지스터, 그의 제조방법, 및 이를 포함하는 유기전계발광표시장치 |
KR101049802B1 (ko) | 2009-11-20 | 2011-07-15 | 삼성모바일디스플레이주식회사 | 다결정 실리콘층의 제조방법, 박막트랜지스터, 그를 구비하는 유기전계발광표시장치 및 그들의 제조방법 |
JP6006975B2 (ja) * | 2011-05-19 | 2016-10-12 | 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 |
KR20130069935A (ko) * | 2011-12-19 | 2013-06-27 | 주식회사 엘지실트론 | 웨이퍼 제조 방법 |
KR20140039863A (ko) * | 2012-09-25 | 2014-04-02 | 삼성디스플레이 주식회사 | 다결정 규소막 형성 방법, 다결정 규소막을 포함하는 박막 트랜지스터 및 표시 장치 |
CN109830526A (zh) * | 2019-02-27 | 2019-05-31 | 中山汉臣电子科技有限公司 | 一种功率半导体器件及其制备方法 |
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TW264575B (ja) * | 1993-10-29 | 1995-12-01 | Handotai Energy Kenkyusho Kk | |
JP3190512B2 (ja) | 1994-02-10 | 2001-07-23 | 株式会社半導体エネルギー研究所 | 半導体作製方法 |
JP3464285B2 (ja) | 1994-08-26 | 2003-11-05 | 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 |
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TW523931B (en) * | 2001-02-20 | 2003-03-11 | Hitachi Ltd | Thin film transistor and method of manufacturing the same |
JP2003243662A (ja) * | 2002-02-14 | 2003-08-29 | Mitsubishi Electric Corp | 半導体装置およびその製造方法、半導体ウェハ |
KR100522436B1 (ko) * | 2003-02-05 | 2005-10-20 | 장 진 | 덮개층을 이용한 다결정 실리콘 박막 소자 제조 방법 |
KR100712101B1 (ko) * | 2004-06-30 | 2007-05-02 | 삼성에스디아이 주식회사 | 박막트랜지스터 및 그의 제조 방법 |
KR100721555B1 (ko) * | 2004-08-13 | 2007-05-23 | 삼성에스디아이 주식회사 | 박막트랜지스터 및 그 제조 방법 |
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JP2008153679A (ja) | 2008-07-03 |
KR20060015195A (ko) | 2006-02-16 |
US7375396B2 (en) | 2008-05-20 |
US7452762B2 (en) | 2008-11-18 |
US20060033107A1 (en) | 2006-02-16 |
JP2006054415A (ja) | 2006-02-23 |
US20070141767A1 (en) | 2007-06-21 |
KR100656495B1 (ko) | 2006-12-11 |
CN1734788B (zh) | 2010-11-17 |
CN1734788A (zh) | 2006-02-15 |
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