KR100731765B1 - 박막트랜지스터 및 그 제조 방법 - Google Patents
박막트랜지스터 및 그 제조 방법 Download PDFInfo
- Publication number
- KR100731765B1 KR100731765B1 KR1020060051546A KR20060051546A KR100731765B1 KR 100731765 B1 KR100731765 B1 KR 100731765B1 KR 1020060051546 A KR1020060051546 A KR 1020060051546A KR 20060051546 A KR20060051546 A KR 20060051546A KR 100731765 B1 KR100731765 B1 KR 100731765B1
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- South Korea
- Prior art keywords
- layer
- capping layer
- silicon layer
- amorphous silicon
- substrate
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- 238000000034 method Methods 0.000 title claims abstract description 52
- OFIYHXOOOISSDN-UHFFFAOYSA-N tellanylidenegallium Chemical compound [Te]=[Ga] OFIYHXOOOISSDN-UHFFFAOYSA-N 0.000 title description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 50
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 239000003054 catalyst Substances 0.000 claims abstract description 37
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 30
- 239000010409 thin film Substances 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 239000010408 film Substances 0.000 claims description 50
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 13
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 13
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 abstract description 14
- 239000010410 layer Substances 0.000 description 191
- 238000002425 crystallisation Methods 0.000 description 29
- 230000008025 crystallization Effects 0.000 description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 229910052710 silicon Inorganic materials 0.000 description 11
- 239000010703 silicon Substances 0.000 description 11
- 239000012535 impurity Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000005530 etching Methods 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000007715 excimer laser crystallization Methods 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000004151 rapid thermal annealing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- 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
- H01L29/66765—Lateral single gate single channel transistors with inverted structure, i.e. the channel layer is formed after the gate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- 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
- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
- H01L21/02672—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth using crystallisation enhancing elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—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
- 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
- H01L27/1214—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 comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
- H01L27/127—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement
- H01L27/1274—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement using crystallisation of amorphous semiconductor or recrystallisation of crystalline semiconductor
- H01L27/1277—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement using crystallisation of amorphous semiconductor or recrystallisation of crystalline semiconductor using a crystallisation promoting species, e.g. local introduction of Ni catalyst
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Crystallography & Structural Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Recrystallisation Techniques (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (8)
- 기판 상에 게이트 전극을 형성하는 단계;상기 게이트 전극 상에 게이트 절연막을 형성하는 단계;상기 게이트 절연막 상에 비정질 실리콘층을 형성하는 단계;상기 비정질 실리콘층 상에 게이트 전극이 형성된 영역의 외측에 개구부가 형성되고 2 이상의 층으로 구성된 캡핑층을 형성하는 단계;상기 캡핑층 상에 금속 촉매층을 형성하는 단계;상기 기판을 열처리하여 비정질 실리콘층을 다결정 실리콘층으로 형성하는 단계; 및및 상기 기판상에 소오스/드레인 영역 및 소오스/드레인 전극을 형성하는 단계;를 포함하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 개구부는 게이트를 형성하기 위해 기판 상에 형성된 얼라인 마크를 이용하여 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 개구부는 게이트 전극을 얼라인 마크로 이용하여 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,다결정 실리콘층에 금속 촉매가 109 내지 1013 atoms/cm2의 면밀도로 잔류하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 캡핑층은 제1 캡핑층과 제2 캡핑층으로 되어 있되, 상기 제1 캡핑층은 실리콘 질화막으로 형성하고 상기 제2 캡핑층은 실리콘 산화막으로 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 5항에 있어서,상기 제2 캡핑층에는 개구부가 형성되어 있는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 1항에 있어서,상기 캡핑층은 제1 캡핑층과 제2 캡핑층으로 되어 있되, 상기 제1 캡핑층은 실리콘 산화막으로 형성하고 상기 제2 캡핑층은 실리콘 질화막으로 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 7항에 있어서,상기 제1 캡핑층에는 개구부가 형성되어 있는 것을 특징으로 하는 박막트랜지스터의 제조방법.
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KR1020060051546A KR100731765B1 (ko) | 2006-06-08 | 2006-06-08 | 박막트랜지스터 및 그 제조 방법 |
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KR1020060051546A KR100731765B1 (ko) | 2006-06-08 | 2006-06-08 | 박막트랜지스터 및 그 제조 방법 |
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KR100731765B1 true KR100731765B1 (ko) | 2007-06-22 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005167051A (ja) * | 2003-12-04 | 2005-06-23 | Sony Corp | 薄膜トランジスタおよび薄膜トランジスタの製造方法 |
KR20050113036A (ko) * | 2004-05-28 | 2005-12-01 | 삼성에스디아이 주식회사 | 바텀 게이트 형 박막트랜지스터 및 그의 제조방법 |
KR20060015183A (ko) * | 2004-08-13 | 2006-02-16 | 삼성에스디아이 주식회사 | 박막트랜지스터 및 그 제조 방법 |
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- 2006-06-08 KR KR1020060051546A patent/KR100731765B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005167051A (ja) * | 2003-12-04 | 2005-06-23 | Sony Corp | 薄膜トランジスタおよび薄膜トランジスタの製造方法 |
KR20050113036A (ko) * | 2004-05-28 | 2005-12-01 | 삼성에스디아이 주식회사 | 바텀 게이트 형 박막트랜지스터 및 그의 제조방법 |
KR20060015183A (ko) * | 2004-08-13 | 2006-02-16 | 삼성에스디아이 주식회사 | 박막트랜지스터 및 그 제조 방법 |
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