JP2014140013A - 薄膜形成方法および薄膜形成装置 - Google Patents
薄膜形成方法および薄膜形成装置 Download PDFInfo
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- 239000010409 thin film Substances 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000006243 chemical reaction Methods 0.000 claims abstract description 127
- 239000007789 gas Substances 0.000 claims description 155
- 238000002407 reforming Methods 0.000 claims description 75
- 239000010408 film Substances 0.000 claims description 69
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 claims description 18
- 239000001257 hydrogen Substances 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 239000001272 nitrous oxide Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 26
- 230000008569 process Effects 0.000 description 22
- 230000015572 biosynthetic process Effects 0.000 description 20
- 235000012431 wafers Nutrition 0.000 description 19
- 238000010438 heat treatment Methods 0.000 description 15
- 239000004065 semiconductor Substances 0.000 description 14
- 238000010926 purge Methods 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 239000012535 impurity Substances 0.000 description 9
- 239000000460 chlorine Substances 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
【解決手段】第1の原料ガスと第2の原料ガスとを反応室内に供給する第1の工程と、第1の原料ガスの供給を停止し、第2の原料ガスを反応室内に供給し、反応室内の圧力を第1の工程における圧力と比較して高くする第2の工程と、を備え、第1の工程と第2の工程とを交互に複数回繰り返すことにより、反応室内に収容された被処理体に薄膜を形成する。
【選択図】図3
Description
また、本発明は、良好なカバレッジ性能を有する薄膜を形成することができる薄膜形成方法および薄膜形成装置を提供することを目的とする。
さらに、本発明は、不純物濃度をより低減することができる薄膜を形成することができる薄膜形成方法および薄膜形成装置を提供することを目的とする。
反応室内に収容された被処理体に薄膜を形成する薄膜形成方法であって、
第1の原料ガスと第2の原料ガスとを前記反応室内に供給する第1の工程と、
前記第1の原料ガスの供給を停止し、前記第2の原料ガスを前記反応室内に供給し、前記反応室内の圧力を前記第1の工程における圧力と比較して高くする第2の工程と、を備え、
前記第1の工程と、前記第2の工程と、を交互に複数回繰り返す、ことを特徴とする。
前記第1の工程と、前記第2の工程と、前記改質工程と、を複数回繰り返す、ことが好ましい。
前記第1の工程と、前記第2の工程と、を交互に複数回繰り返し、前記被処理体に所望厚の薄膜が形成された後、前記改質工程を実行する、ことが好ましい。
反応室内に収容された被処理体に薄膜を形成する薄膜形成方法であって、
成膜用ガスを前記反応室内に供給して、前記反応室内に収容された前記被処理体に薄膜を形成する第1の工程と、
改質用ガスを前記反応室内に供給して、前記被処理体に形成された薄膜を改質する改質工程と、を備え、
前記第1の工程と、前記改質工程と、を交互に複数回繰り返す、または、前記第1の工程を複数回繰り返し、前記被処理体に所望厚の薄膜が形成された後、前記改質工程を実行する、ことを特徴とする。
前記被処理体には、例えば、溝又はホールが形成されている。この場合、前記溝又は前記ホールの上に薄膜を形成する。
前記第1の原料ガスは、例えば、ジクロロシランであり、
前記第2の原料ガスは、例えば、亜酸化窒素である。
反応室内に収容された被処理体に薄膜を形成する薄膜形成装置であって、
前記反応室内に第1の原料ガスを供給する第1の原料ガス供給手段と、
前記反応室内に第2の原料ガスを供給する第2の原料ガス供給手段と、
前記反応室内の圧力を制御する圧力制御手段と、
装置の各部を制御する制御手段と、を備え、
前記制御手段は、
前記第1の原料ガス供給手段と前記第2の原料ガス供給手段とを制御し、前記第1の原料ガスと前記第2の原料ガスとを前記反応室内に供給する第1の工程と、
前記第1の原料ガス供給手段を制御して前記第1の原料ガスの供給を停止し、前記第2の原料ガス供給手段を制御して前記第2の原料ガスを前記反応室内に供給し、前記圧力制御手段を制御して前記反応室内の圧力を前記第1の工程における圧力と比較して高くする第2の工程と、を、
交互に複数回繰り返して前記被処理体の上に薄膜を形成する、ことを特徴とする。
前記制御手段は、
前記第1の工程と、前記第2の工程と、前記改質用ガス供給手段を制御して前記改質用ガスを前記反応室内に供給し前記被処理体に形成された薄膜を改質する改質工程と、を複数回繰り返して前記被処理体の上に薄膜を形成することが好ましい。
前記制御手段は、
前記第1の工程と、前記第2の工程と、を交互に複数回繰り返し、前記被処理体に所望厚の薄膜が形成された後、前記改質用ガス供給手段を制御して前記改質用ガスを前記反応室内に供給して前記被処理体に形成された薄膜を改質する改質工程を実行して前記被処理体の上に薄膜を形成することが好ましい。
反応室内に収容された被処理体に薄膜を形成する薄膜形成装置であって、
前記反応室内に成膜用ガスを供給する成膜用ガス供給手段と、
前記反応室内に前記被処理体に形成された薄膜を改質する改質用ガスを供給する改質用ガス供給手段と、
装置の各部を制御する制御手段と、を備え、
前記制御手段は、
前記成膜用ガス供給手段を制御して前記成膜用ガスを前記反応室内に供給し、前記反応室内に収容された前記被処理体に薄膜を形成する第1の工程と、
前記改質用ガス供給手段を制御し、前記被処理体に形成された薄膜を改質する改質用ガスを前記反応室内に供給する改質工程と、を、
交互に複数回繰り返す、または、前記第1の工程を複数回繰り返し、前記被処理体に所望厚の薄膜が形成された後、前記改質工程を実行することにより、前記被処理体の上に薄膜を形成する、ことを特徴とする薄膜形成装置。
圧力計(群)123は、反応管2内、処理ガス導入管13内、排気管16内等の各部の圧力を測定し、その測定値を制御部100に通知する。
RAM113は、CPU115のワークエリアなどとして機能する。
バス116は、各部の間で情報を伝達する。
上記実施の形態では、各サイクルの成膜用ガス(DCS及びN2O)の流量を同じとする構成を例に挙げているが、例えば、図4に示すように、サイクルによって成膜用ガスの流量を異ならせてもよい。さらに、各サイクルにおけるDCSとN2Oの流量を異ならせてもよい。
2 反応管
3 内管
4 外管
5 マニホールド
6 支持リング
7 蓋体
8 ボートエレベータ
9 ウエハボート
10 半導体ウエハ
11 断熱体
12 昇温用ヒータ
13 処理ガス導入管
14 排気口
15 パージガス供給管
16 排気管
17 バルブ
18 真空ポンプ
100 制御部
111 レシピ記憶部
112 ROM
113 RAM
114 I/Oポート
115 CPU
116 バス
121 操作パネル
122 温度センサ
123 圧力計
124 ヒータコントローラ
125 MFC制御部
126 バルブ制御部
Claims (11)
- 反応室内に収容された被処理体に薄膜を形成する薄膜形成方法であって、
第1の原料ガスと第2の原料ガスとを前記反応室内に供給する第1の工程と、
前記第1の原料ガスの供給を停止し、前記第2の原料ガスを前記反応室内に供給し、前記反応室内の圧力を前記第1の工程における圧力と比較して高くする第2の工程と、を備え、
前記第1の工程と、前記第2の工程と、を交互に複数回繰り返す、ことを特徴とする薄膜形成方法。 - 前記被処理体に形成された薄膜を改質する改質用ガスを前記反応室内に供給する改質工程をさらに備え、
前記第1の工程と、前記第2の工程と、前記改質工程と、を複数回繰り返す、ことを特徴とする請求項1に記載の薄膜形成方法。 - 前記被処理体に形成された薄膜を改質する改質用ガスを前記反応室内に供給する改質工程をさらに備え、
前記第1の工程と、前記第2の工程と、を交互に複数回繰り返し、前記被処理体に所望厚の薄膜が形成された後、前記改質工程を実行する、ことを特徴とする請求項1に記載の薄膜形成方法。 - 反応室内に収容された被処理体に薄膜を形成する薄膜形成方法であって、
成膜用ガスを前記反応室内に供給して、前記反応室内に収容された前記被処理体に薄膜を形成する第1の工程と、
改質用ガスを前記反応室内に供給して、前記被処理体に形成された薄膜を改質する改質工程と、を備え、
前記第1の工程と、前記改質工程と、を交互に複数回繰り返す、または、前記第1の工程を複数回繰り返し、前記被処理体に所望厚の薄膜が形成された後、前記改質工程を実行する、ことを特徴とする薄膜形成方法。 - 前記改質工程では、改質用ガスに酸素及び水素を用いる、ことを特徴とする請求項2乃至4のいずれか1項に記載の薄膜形成方法。
- 前記被処理体には、溝又はホールが形成されており、
前記溝又は前記ホールの上に薄膜を形成する、ことを特徴とする請求項1乃至3のいずれか1項に記載の薄膜形成方法。 - 前記第1の原料ガスは、ジクロロシランであり、
前記第2の原料ガスは、亜酸化窒素である、ことを特徴とする請求項1乃至3、6のいずれか1項に記載の薄膜形成方法。 - 反応室内に収容された被処理体に薄膜を形成する薄膜形成装置であって、
前記反応室内に第1の原料ガスを供給する第1の原料ガス供給手段と、
前記反応室内に第2の原料ガスを供給する第2の原料ガス供給手段と、
前記反応室内の圧力を制御する圧力制御手段と、
装置の各部を制御する制御手段と、を備え、
前記制御手段は、
前記第1の原料ガス供給手段と前記第2の原料ガス供給手段とを制御し、前記第1の原料ガスと前記第2の原料ガスとを前記反応室内に供給する第1の工程と、
前記第1の原料ガス供給手段を制御して前記第1の原料ガスの供給を停止し、前記第2の原料ガス供給手段を制御して前記第2の原料ガスを前記反応室内に供給し、前記圧力制御手段を制御して前記反応室内の圧力を前記第1の工程における圧力と比較して高くする第2の工程と、を、
交互に複数回繰り返して前記被処理体の上に薄膜を形成する、ことを特徴とする薄膜形成装置。 - 前記反応室内に前記被処理体に形成された薄膜を改質する改質用ガスを供給する改質用ガス供給手段を、さらに備え、
前記制御手段は、
前記第1の工程と、前記第2の工程と、前記改質用ガス供給手段を制御して前記改質用ガスを前記反応室内に供給し前記被処理体に形成された薄膜を改質する改質工程と、を複数回繰り返して前記被処理体の上に薄膜を形成する、ことを特徴とする請求項8に記載の薄膜形成装置。 - 前記反応室内に前記被処理体に形成された薄膜を改質する改質用ガスを供給する改質用ガス供給手段を、さらに備え、
前記制御手段は、
前記第1の工程と、前記第2の工程と、を交互に複数回繰り返し、前記被処理体に所望厚の薄膜が形成された後、前記改質用ガス供給手段を制御して前記改質用ガスを前記反応室内に供給して前記被処理体に形成された薄膜を改質する改質工程を実行して前記被処理体の上に薄膜を形成する、ことを特徴とする請求項8に記載の薄膜形成装置。 - 反応室内に収容された被処理体に薄膜を形成する薄膜形成装置であって、
前記反応室内に成膜用ガスを供給する成膜用ガス供給手段と、
前記反応室内に前記被処理体に形成された薄膜を改質する改質用ガスを供給する改質用ガス供給手段と、
装置の各部を制御する制御手段と、を備え、
前記制御手段は、
前記成膜用ガス供給手段を制御して前記成膜用ガスを前記反応室内に供給し、前記反応室内に収容された前記被処理体に薄膜を形成する第1の工程と、
前記改質用ガス供給手段を制御し、前記被処理体に形成された薄膜を改質する改質用ガスを前記反応室内に供給する改質工程と、を、
交互に複数回繰り返す、または、前記第1の工程を複数回繰り返し、前記被処理体に所望厚の薄膜が形成された後、前記改質工程を実行することにより、前記被処理体の上に薄膜を形成する、ことを特徴とする薄膜形成装置。
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JP2019140168A (ja) * | 2018-02-07 | 2019-08-22 | 株式会社Kokusai Electric | 半導体装置の製造方法、基板処理装置およびプログラム |
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CN103871866B (zh) | 2017-03-08 |
US9139904B2 (en) | 2015-09-22 |
US20150354062A1 (en) | 2015-12-10 |
KR101662877B1 (ko) | 2016-10-05 |
KR101716085B1 (ko) | 2017-03-13 |
KR20160055777A (ko) | 2016-05-18 |
TW201433653A (zh) | 2014-09-01 |
CN103871866A (zh) | 2014-06-18 |
JP6017396B2 (ja) | 2016-11-02 |
US20140170320A1 (en) | 2014-06-19 |
TWI591200B (zh) | 2017-07-11 |
KR20140079295A (ko) | 2014-06-26 |
US10422035B2 (en) | 2019-09-24 |
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