JP6628634B2 - 成膜装置、成膜方法、プログラム及びコンピュータ可読記憶媒体 - Google Patents
成膜装置、成膜方法、プログラム及びコンピュータ可読記憶媒体 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 52
- 238000003860 storage Methods 0.000 title claims description 5
- 239000000758 substrate Substances 0.000 claims description 84
- 239000007789 gas Substances 0.000 claims description 74
- 238000000926 separation method Methods 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 1
- 239000012495 reaction gas Substances 0.000 description 39
- 238000012546 transfer Methods 0.000 description 24
- 238000012545 processing Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 239000002052 molecular layer Substances 0.000 description 9
- 229910052814 silicon oxide Inorganic materials 0.000 description 9
- 238000000151 deposition Methods 0.000 description 6
- 238000010926 purge Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000008021 deposition Effects 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229910052719 titanium 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
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- CGRVKSPUKAFTBN-UHFFFAOYSA-N N-silylbutan-1-amine Chemical compound CCCCN[SiH3] CGRVKSPUKAFTBN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(iv) oxide Chemical compound O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- UFQXGXDIJMBKTC-UHFFFAOYSA-N oxostrontium Chemical compound [Sr]=O UFQXGXDIJMBKTC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 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
- 239000002356 single layer Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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Description
本実施形態の成膜装置について、図1から図6に基づき説明する。図1は、本実施形態の成膜装置の概略断面図である。図2及び図4は、本実施形態の成膜装置の概略斜視図である。図3は、本実施形態の成膜装置の概略平面図である。なお、図2及び図3では、説明の便宜上、天板の図示を省略している。また、図4では、説明の便宜上、天板、回転テーブル、蓋部材、ヒータユニット、ノズル等の図示を省略している。
本実施形態の成膜装置におけるウエハWの回転機構について、図7から図14に基づき説明する。図7から図10は本実施形態の成膜装置におけるウエハWの回転機構を示す概略図であり、図2及び図3における6個の凹部2aのうちの1個の凹部2aが形成された部分を拡大した図である。図7及び図8は、回転テーブル2が、ウエハWに成膜を行うときの位置(以下「成膜位置」という。)に位置するときの回転テーブル2と回転ユニット200との位置関係を示しており、それぞれ断面図及び斜視図である。なお、ウエハWの搬送(搬入又は搬出)を行うときの位置(以下「搬送位置」という。)についても、例えば図7及び図8と同様の位置とすることができる。図9及び図10は、回転テーブル2が、ウエハWを回転(自転)させるときの位置(以下「自転位置)」ともいう。)に位置するときの回転テーブル2と回転ユニット200との位置関係を示しており、それぞれ断面図及び斜視図である。
本実施形態の成膜方法について、図19から図25に基づき説明する。図19は、本実施形態の成膜方法の一例を示すフローチャートである。
まず、制御部100は、回転テーブル2が搬送・成膜位置に位置しているか否かを判定する(ステップS102)。
続いて、制御部100は、所定の成膜条件でウエハWに対して成膜処理を行うように成膜装置を制御する(ステップS108)。
続いて、制御部100は、回転ユニット200を反時計回り(第1の回転方向)に回転させる(ステップS110)。具体的には、図21(b)に示されるように、制御部100は、第1のエア供給部92aにより、羽根部213が反時計回りに回転するようにエアを供給する。このとき、図21(a)に示されるように、回転テーブル2は搬送・成膜位置に位置しているため、基板支持部材91の下面と回転ユニット200とが接触していない。このため、羽根部213が反時計回りに回転すると、基板支持部材91は回転することなく、回転ユニット200のみが反時計回りに回転する。
制御部100は、真空容器1内にウエハWを搬出するように成膜装置を制御する(ステップS120)。具体的には、真空容器1内をパージし、搬入工程における動作と逆の動作によりウエハWを搬送アーム10により真空容器1から順次搬出する。
2 回転テーブル
2a 凹部
2b 貫通穴
7 ヒータユニット
14 底部
16 ベローズ
23 駆動部
31 反応ガスノズル
32 反応ガスノズル
91 基板支持部材
91a 載置部
92 エア供給部
92a 第1のエア供給部
92b 第2のエア供給部
100 制御部
200 回転ユニット
210 回転部
211 保持部
212 シャフト部
213 羽根部
213a 円板状部
213b 突起
220 固定部
221 ベアリング
230 ストッパ部
300 回転ユニット
310 回転部
311 保持部
312 シャフト部
313 羽根部
313a 円板状部
313b 突起
320 固定部
321 ベアリング
330 ストッパ部
W ウエハ
Claims (13)
- 容器内にて互いに反応する少なくとも2つの反応ガスを順番に供給して基板に膜を堆積させる成膜装置であって、
前記容器内に回転可能に設けられ、底部に貫通穴を有する凹部が上面に形成された回転テーブルと、
前記凹部に着脱可能に載置され、上面に前記基板が載置される載置部を有する基板支持部材と、
前記回転テーブルを昇降させ、かつ、回転させる駆動機構と、
前記容器内において前記回転テーブルよりも下方に設けられ、エアの供給により回転可能な回転ユニットと、
前記回転ユニットの周囲に設けられ、前記回転ユニットの複数の位置にエアを供給可能であり、前記複数の位置の少なくともいずれかにエアを供給することで前記回転ユニットを回転させるエア供給部と、
前記エア供給部から前記回転ユニットにエアを供給しながら前記駆動機構により前記回転テーブルを下降させることで、前記回転ユニットにより前記基板支持部材の下面を保持し、前記基板支持部材の下面を保持した状態で、前記エア供給部から前記回転ユニットに供給されるエアの位置を変更することで、前記回転テーブルに対して前記基板支持部材を所定の角度だけ回転させる制御部と
を備える成膜装置。 - 前記回転ユニットは、前記容器の底部に取り付けられている、
請求項1に記載の成膜装置。 - 前記回転ユニットは、
前記基板支持部材を保持する保持部と、
前記保持部に取り付けられたシャフト部と、
前記保持部よりも下方において前記シャフト部に固定され、前記エアを受風可能な羽根部と
を有し、
前記エア供給部から前記羽根部にエアが供給されることで、前記保持部、前記シャフト部及び前記羽根部が回転する、
請求項1又は2に記載の成膜装置。 - 前記回転ユニットは、前記羽根部の回転を停止させるストッパ部を有する、
請求項3に記載の成膜装置。 - 前記エア供給部は、
前記羽根部にエアを供給することで前記羽根部を反時計回り回転させる第1のエア供給部と、
前記羽根部にエアを供給することで前記羽根部を時計回りに回転させる第2のエア供給部と
を有する、
請求項3又は4に記載の成膜装置。 - 前記羽根部は、円板状部と、前記円板状部の外周部から前記円板状部の外径方向に突出した複数の突起と有する、
請求項3乃至5のいずれか一項に記載の成膜装置。 - 前記羽根部は、円板状部と、前記円板状部の外縁部から前記シャフト部と平行な方向に突出した複数の突起とを有する、
請求項3乃至5のいずれか一項に記載の成膜装置。 - 容器内にて互いに反応する少なくとも2つの反応ガスを順番に供給して基板に膜を堆積させる成膜方法であって、
前記容器内に回転可能に設けられ、底部に貫通穴を有する凹部が上面に形成された回転テーブルの前記凹部に着脱可能に載置され、上面に前記基板が載置される載置部を有する基板支持部材の前記載置部に前記基板を載置する搬入工程と、
前記回転テーブルを回転させると共に、前記回転テーブルの周方向に互いに分離領域を介して離間した領域にそれぞれ第1の反応ガス及び第2の反応ガスを供給することにより前記基板に成膜を行う成膜工程と、
前記回転テーブルの回転を停止するステップと、
前記容器内において前記回転テーブルよりも下方に回転可能に設けられた回転ユニットにエアを供給することで、前記回転ユニットを第1の回転方向に回転させるステップと、
前記回転ユニットを前記第1の回転方向に回転させた後、前記回転テーブルを下降させて、前記回転ユニットにより前記基板支持部材の下面を保持するステップと、
前記回転ユニットにより前記基板支持部材の下面を保持した状態で、前記回転ユニットにエアを供給することで、前記回転ユニットを前記第1の回転方向と反対方向の第2の回転方向に回転させて、前記回転テーブルに対して前記基板支持部材を所定の角度だけ回転させるステップと、
前記回転テーブルに対して前記基板支持部材を所定の角度だけ回転させた後、前記回転テーブルを上昇させるステップと、
を含む自転工程と
を有する、
成膜方法。 - 前記回転ユニットにより前記基板支持部材の下面を保持するステップにおいて、前記凹部から前記基板支持部材が離間するように前記回転テーブルを下降させる、
請求項8に記載の成膜方法。 - 前記成膜工程及び前記自転工程を交互に複数回繰り返す、
請求項8又は9に記載の成膜方法。 - 前記所定の角度は、堆積する膜の膜厚が目標膜厚に達するまでの間に、所定の回数の前記自転工程において回転した前記回転テーブルに対する前記基板支持部材の回転角度の合計が360°の整数倍となる角度である、
請求項10に記載の成膜方法。 - 請求項1乃至7のいずれか一項に記載の成膜装置に請求項8乃至11のいずれか一項に記載の成膜方法を実行させる、プログラム。
- 請求項12に記載のプログラムを格納した、コンピュータ可読記憶媒体。
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