JP6974363B2 - 膜の製造方法及びその製造装置並びに金属酸化物トランジスター及びその製造方法 - Google Patents
膜の製造方法及びその製造装置並びに金属酸化物トランジスター及びその製造方法 Download PDFInfo
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- 229910044991 metal oxide Inorganic materials 0.000 title claims description 113
- 150000004706 metal oxides Chemical class 0.000 title claims description 113
- 238000004519 manufacturing process Methods 0.000 title claims description 57
- 239000007789 gas Substances 0.000 claims description 85
- 239000012495 reaction gas Substances 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 31
- 239000000758 substrate Substances 0.000 claims description 25
- 238000010926 purge Methods 0.000 claims description 19
- 238000007740 vapor deposition Methods 0.000 claims description 16
- 230000003746 surface roughness Effects 0.000 claims description 12
- 238000004148 unit process Methods 0.000 claims description 4
- 239000005300 metallic glass Substances 0.000 claims 1
- 239000010408 film Substances 0.000 description 61
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 21
- 239000011261 inert gas Substances 0.000 description 15
- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical compound CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 description 13
- 238000007796 conventional method Methods 0.000 description 12
- 238000003860 storage Methods 0.000 description 10
- 239000011787 zinc oxide Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000012528 membrane Substances 0.000 description 7
- 238000000151 deposition Methods 0.000 description 6
- 239000002243 precursor Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 230000004397 blinking Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- -1 first Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/76—Unipolar devices, e.g. field effect transistors
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- 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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- Microelectronics & Electronic Packaging (AREA)
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- Inorganic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Thin Film Transistor (AREA)
- Formation Of Insulating Films (AREA)
Description
ソースガス加圧ドージング段階(1210)のために、ソースガスが用意されてもよい。ソースガスは、蒸着しようとする膜の種類に応じて種々に用意されてもよい。例えば、蒸着しようとする膜が金属酸化物である場合、それに対応する金属前駆体ソースガスが用意されてもよい。例えば、蒸着しようとする膜が酸化亜鉛(ZnO)である場合、ソースガスは、DEZ(diethyl zinc)を含んでいてもよい。
第1のメインパージング段階(S120)において、不活性ガスが用いられてもよく、不活性ガスは、例えば、アルゴン(Ar)、または窒素(N2)ガスからなってもよい。パージングする段階によって、基板の表面に吸着し切れなかった過剰のソースガスが除去可能である。
反応ガスドージング段階(S130)において、反応ガスは、ソースガスと反応して蒸着しようとする膜に還元されてもよい。例えば、ソースガスがDEZを含む場合、反応ガスはH2Oからなってもよい。
反応ガスドージング段階後に、第2のメインパージング段階(S140)がさらに行われてもよい。これにより、基板の表面に吸着し切れなかった過剰のガスが除去可能になる。
段階S110のソースガス加圧ドージング段階は、加圧雰囲気下で行われてもよい。換言すれば、ソースガス加圧ドージング段階は、高圧の雰囲気下で行われてもよく、これは、加圧段階と略称することがある。
Claims (4)
- ゲート電極と、
前記ゲート電極の一方の側に形成されるゲート絶縁膜と、
前記ゲート絶縁膜の一方の側に形成され、金属酸化物層を有するアクティブ層と、
前記アクティブ層の一方の側に設けられるソース及びドレイン電極と、を含み、
前記金属酸化物層の厚さは、1.5nm超え、且つ、7nm以下であり、
前記金属酸化物層の表面粗さが、RMS4.4Å未満であり、
前記金属酸化物層は、複数の結晶質金属酸化物領域と、前記結晶質金属酸化物領域を取り囲むアモルファス(非晶質)金属酸化物領域と、を含む、金属酸化物トランジスター。 - 基板を用意する段階と、
前記基板の一方の側に金属酸化物層を有するアクティブ層を形成する段階と、
を含むが、
前記アクティブ層を形成する段階は、
前記基板が設けられたチャンバー内を密閉させた状態で、金属酸化物層の蒸着のためのソースガスを提供することにより、前記チャンバー内の圧力を増加させて、前記ソースガスを前記密閉されたチャンバー内の前記基板に吸着させる第1のサブ加圧ドージング段階、前記第1のサブ加圧ドージング段階後に、パージさせるサブパージング段階、及び前記サブパージング段階後に、前記チャンバー内を密閉させた状態で、前記ソースガスを提供することにより、前記チャンバー内の圧力を増加させて、前記ソースガスを前記基板に吸着させる第2のサブ加圧ドージング段階を含み、前記第1のサブ加圧ドージング段階と前記第2のサブ加圧ドージング段階との間に反応ガスを提供する反応ガスドージング段階を含まない、ソースガス加圧ドージング(dosing)段階と、
前記ソースガス加圧ドージング段階後に、パージさせる第1のメインパージング(main purging)段階と、
前記第1のメインパージング段階後に、反応ガスを提供して、前記基板に金属酸化物層を蒸着させる反応ガスドージング段階と、
前記反応ガスドージング段階後に、パージさせる第2のメインパージング段階と、を含む、金属酸化物トランジスターの製造方法。 - 前記ソースガス加圧ドージング段階と、前記第1のメインパージング段階と、前記反応ガスドージング段階及び前記第2のメインパージング段階は、単位工程を構成し、
前記単位工程の繰り返し回数に応じて、前記アクティブ層の電気的な特性が可変となる、請求項2に記載の金属酸化物トランジスターの製造方法。 - 前記ソースガス加圧ドージング段階における工程温度は、20℃〜250℃である、請求項2に記載の金属酸化物トランジスターの製造方法。
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KR10-2017-0134979 | 2017-10-18 | ||
KR20170134979 | 2017-10-18 | ||
PCT/KR2018/012366 WO2019078652A1 (ko) | 2017-10-18 | 2018-10-18 | 막 제조방법 및 그 제조장치, 금속 산화물 트랜지스터 및 그 제조방법 |
KR1020180124418A KR102214218B1 (ko) | 2017-10-18 | 2018-10-18 | 막 제조방법 및 그 제조장치 |
KR10-2018-0124418 | 2018-10-18 | ||
KR1020180124398A KR102201378B1 (ko) | 2017-10-18 | 2018-10-18 | 금속 산화물 트랜지스터 및 그 제조방법 |
KR10-2018-0124398 | 2018-10-18 |
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US5916365A (en) * | 1996-08-16 | 1999-06-29 | Sherman; Arthur | Sequential chemical vapor deposition |
JP4817350B2 (ja) * | 2001-07-19 | 2011-11-16 | 株式会社 東北テクノアーチ | 酸化亜鉛半導体部材の製造方法 |
KR100811281B1 (ko) * | 2006-12-27 | 2008-03-07 | 주식회사 테라세미콘 | 금속 흡착 장치 및 방법 |
JP4616359B2 (ja) * | 2007-01-09 | 2011-01-19 | 韓國電子通信研究院 | 電子素子用ZnO半導体膜の形成方法及び前記半導体膜を含む薄膜トランジスタ |
JP4873726B2 (ja) * | 2007-03-26 | 2012-02-08 | 独立行政法人物質・材料研究機構 | 酸化亜鉛薄膜の形成方法 |
US8017182B2 (en) * | 2007-06-21 | 2011-09-13 | Asm International N.V. | Method for depositing thin films by mixed pulsed CVD and ALD |
JP5073624B2 (ja) * | 2008-09-16 | 2012-11-14 | スタンレー電気株式会社 | 酸化亜鉛系半導体の成長方法及び半導体発光素子の製造方法 |
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CN102763222A (zh) * | 2010-12-27 | 2012-10-31 | 松下电器产业株式会社 | 场效应晶体管及其制造方法 |
KR101309043B1 (ko) * | 2012-01-31 | 2013-09-17 | 영남대학교 산학협력단 | 원자층 증착법에 의한 루테늄 박막 형성 방법 및 그를 이용한 루테늄 박막 |
JP6150371B2 (ja) * | 2012-05-31 | 2017-06-21 | 高知県公立大学法人 | 酸化亜鉛(ZnO)系単結晶、ZnO系薄膜及びZnO系単結晶性薄膜の製造方法、並びにZnO系単結晶性薄膜及び該ZnO系単結晶性薄膜からなるZnO系材料 |
JP5918631B2 (ja) * | 2012-06-04 | 2016-05-18 | Jswアフティ株式会社 | ZnO膜形成方法及びZnO膜形成装置 |
JP5852151B2 (ja) * | 2014-02-12 | 2016-02-03 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理装置、プログラム及び記録媒体 |
JP5855691B2 (ja) * | 2014-02-25 | 2016-02-09 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理装置、プログラム及び記録媒体 |
KR101820237B1 (ko) * | 2016-04-29 | 2018-01-19 | 한양대학교 산학협력단 | 가압식 금속 단원자층 제조 방법, 금속 단원자층 구조체 및 가압식 금속 단원자층 제조 장치 |
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