KR100257158B1 - 박막 트랜지스터 및 그의 제조 방법 - Google Patents
박막 트랜지스터 및 그의 제조 방법 Download PDFInfo
- Publication number
- KR100257158B1 KR100257158B1 KR1019970030434A KR19970030434A KR100257158B1 KR 100257158 B1 KR100257158 B1 KR 100257158B1 KR 1019970030434 A KR1019970030434 A KR 1019970030434A KR 19970030434 A KR19970030434 A KR 19970030434A KR 100257158 B1 KR100257158 B1 KR 100257158B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- thin film
- film transistor
- amorphous silicon
- silicon layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000010409 thin film Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 47
- 239000000460 chlorine Substances 0.000 claims abstract description 36
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 19
- 229910021424 microcrystalline silicon Inorganic materials 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 10
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910003902 SiCl 4 Inorganic materials 0.000 claims description 2
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 230000005669 field effect Effects 0.000 abstract description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 abstract 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 abstract 2
- 229910003910 SiCl4 Inorganic materials 0.000 abstract 1
- 229910003818 SiH2Cl2 Inorganic materials 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 abstract 1
- 239000010408 film Substances 0.000 description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6757—Thin-film transistors [TFT] characterised by the structure of the channel, e.g. transverse or longitudinal shape or doping profile
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/031—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT]
- H10D30/0312—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] characterised by the gate electrodes
- H10D30/0316—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] characterised by the gate electrodes of lateral bottom-gate TFTs comprising only a single gate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
- H10D30/673—Thin-film transistors [TFT] characterised by the electrodes characterised by the shapes, relative sizes or dispositions of the gate electrodes
- H10D30/6732—Bottom-gate only TFTs
Landscapes
- Thin Film Transistor (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (6)
- 게이트 전극이 구비된 하부기판과, 상기 게이트 전극을 포함한 기판 상에 증착된 게이트 절연층과, 상기 게이트 전극의 소정 부분을 포함하는 게이트 절연층 상부에 형성되는 활성층과, 상기 활성층의 일측과 오버랩되는 소오스와, 상기 채널층의 다층과 오버랩되는 드레인을 포함하는 박막 트랜지스터에 있어서, 상기 활성층은 미세 결정질 실리콘(μc-Si)과, 염소가 함유된 비정질 실리콘(a-Si : H(:Cl))이 순차적으로 적층된 구조를 갖는 것을 특징으로 하는 박막 트랜지스터.
- 제1항에 있어서, 상기 미세 결정질 실리콘층은 활성층내의 채널층으로 동작되어지는 것을 특징으로 하는 박막 트랜지스터.
- 제1항에 있어서, 상기 염소를 포함한 비정질 실리콘층의 염소의 양에 따라 비정질 실리콘층 내의 수소량을 변화시켜 전기 전도도를 낮추는 것을 특징으로 하는 박막 트랜지스터.
- 게이트 전극이 구비된 하부 기판 상에 게이트 절연층을 형성하는 공정과, 상기 게이트 절연층 상에 활성층을 형성하는 공정과, 활성층 양 측에 소오스, 드레인을 형성하는 공정을 포함하는 박막 트랜지스터의 제조방법에 있어서, 상기 활성층을 형성하는 공정은, 미세 결정질 실리콘층을 형성하는 공정 및 상기 미세 결정질 실리콘층 상에 염소(Cl)를 포함한 수소화된 비정질 실리콘층을 형성하는 공정을 포함하는 것을 특징으로 하는 박막 트랜지스터의 제조 방법.
- 제4항에 있어서, 상기 염소를 포함한 비정질 실리콘층은 플라즈마 인가 화학 기상 증착(PECVD)법으로 증착되는 것을 특징으로 하는 박막 트랜지스터의 제조 방법.
- 제5항에 있어서, 상기 염소를 포함한 비정질 실리콘층은 SiH2Cl2/SiH4, 가스, SiHCl3/SiH4가스 및, SiCl4/SiH4가스와 같은 염소(Cl)를 포함하는 가스중 선택되는 하나의 가스를 이용하여 형성되는 것을 특징으로 하는 박막 트랜지스터의 제조 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970030434A KR100257158B1 (ko) | 1997-06-30 | 1997-06-30 | 박막 트랜지스터 및 그의 제조 방법 |
TW087110034A TW376588B (en) | 1997-06-30 | 1998-06-22 | Thin film transistor |
JP18343898A JPH11121761A (ja) | 1997-06-30 | 1998-06-30 | 薄膜トランジスタ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970030434A KR100257158B1 (ko) | 1997-06-30 | 1997-06-30 | 박막 트랜지스터 및 그의 제조 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990006212A KR19990006212A (ko) | 1999-01-25 |
KR100257158B1 true KR100257158B1 (ko) | 2000-05-15 |
Family
ID=19513100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970030434A Expired - Lifetime KR100257158B1 (ko) | 1997-06-30 | 1997-06-30 | 박막 트랜지스터 및 그의 제조 방법 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPH11121761A (ko) |
KR (1) | KR100257158B1 (ko) |
TW (1) | TW376588B (ko) |
Cited By (1)
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-
1997
- 1997-06-30 KR KR1019970030434A patent/KR100257158B1/ko not_active Expired - Lifetime
-
1998
- 1998-06-22 TW TW087110034A patent/TW376588B/zh not_active IP Right Cessation
- 1998-06-30 JP JP18343898A patent/JPH11121761A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101484297B1 (ko) * | 2007-08-31 | 2015-01-19 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 표시장치 및 표시장치의 제작방법 |
Also Published As
Publication number | Publication date |
---|---|
TW376588B (en) | 1999-12-11 |
KR19990006212A (ko) | 1999-01-25 |
JPH11121761A (ja) | 1999-04-30 |
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