JP2019534551A - フォトレジスト現像液によるエッチングを防ぐためのバッファ層 - Google Patents
フォトレジスト現像液によるエッチングを防ぐためのバッファ層 Download PDFInfo
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- 229910052782 aluminium Inorganic materials 0.000 claims description 81
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 81
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- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
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- 229910052758 niobium Inorganic materials 0.000 description 2
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- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
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- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
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- 239000010409 thin film Substances 0.000 description 2
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
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- 229910052725 zinc Inorganic materials 0.000 description 1
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- H01L21/28008—Making conductor-insulator-semiconductor electrodes
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Abstract
Description
101 紫外(UV)光
102 シリコン基板
103 露光された部分
104 アルミニウム層
105 残りの部分
106 フォトレジスト層
107 粗さ
109 部分
202 第1の領域
204 第2の領域
206 第3の領域
300 デバイス
301 部分、領域
302 基板
303 フォトレジスト
304 薄いフィルム、アルミニウム層、アルミニウム、アルミニウムフィルム
305 部分、領域
306 バッファ層
307 裸出した/露出された領域、アルミニウム領域、部分
308 フォトレジスト層
309 部分
310 残りの部分
311 光
312 共形誘電体
Claims (12)
- 量子回路デバイスを作製する方法であって、
第1の層、および前記第1の層の表面と接触する第2の層を有するデバイスを準備するステップであって、前記第2の層が、対応する超伝導臨界温度以下で超伝導特性を呈する第1の超伝導体材料を含む、ステップと、
エッチバッファ層を形成するために、前記第2の層の表面上にバッファ材料を形成するステップであって、フォトレジスト現像液への暴露時の前記バッファ材料の前記第2の層に対するエッチ速度選択性は、下にある前記第2の層が、前記フォトレジスト現像液への前記バッファ層の暴露中にエッチングされないようなものである、ステップと、
レジスト層の選択された部分を、堆積させ、前記エッチバッファ層の第1の部分を露出させるために、除去するステップであって、前記レジスト層の前記選択された部分を除去するステップが、前記レジスト層の前記選択された部分に前記フォトレジスト現像液を塗布するステップを含む、ステップと、
前記第2の層の第1の部分を露出させるために、前記エッチバッファ層の前記露出された第1の部分を除去するステップと、
前記第2の層の前記露出された第1の部分上に、誘電体材料、または対応する超伝導温度以下で超伝導特性を呈する第2の超伝導体材料を形成するステップと
を含み、
前記第2の層および前記誘電体材料、または前記第2の層および前記第2の超伝導体材料が、前記量子回路デバイスの一部を成し、前記量子回路デバイスが、平行板コンデンサ、マイクロストリップ共振器、または伝送路を備える、
方法。 - 前記フォトレジスト現像液への暴露時の前記バッファ材料の前記第2の層に対する前記エッチ速度選択性が、1:2未満である、請求項1に記載の方法。
- 前記第2の層の前記第1の超伝導体材料がアルミニウムである、請求項1に記載の方法。
- 前記バッファ材料がポリマーを含む、請求項1に記載の方法。
- 前記ポリマーがポリメチルメタクリレート(PMMA)を含む、請求項4に記載の方法。
- 前記エッチバッファ層の前記露出された第1の部分を除去するステップが、前記エッチバッファ層の前記露出された第1の部分を乾式エッチにかけるステップを含む、請求項1に記載の方法。
- 前記乾式エッチがO2プラズマを含む、請求項6に記載の方法。
- 前記第2の層の前記露出された第1の部分をエッチングするステップをさらに含む、請求項1に記載の方法。
- 前記第2の層の前記露出された第1の部分をエッチングするステップに続いて、前記レジスト層および前記エッチバッファ層の残りの部分を除去するステップをさらに含む、請求項8に記載の方法。
- 前記誘電体材料または前記第2の超伝導体材料を堆積させるステップに続いて、前記レジスト層および前記エッチバッファ層の残りの部分を除去するステップをさらに含む、請求項1に記載の方法。
- 前記第1の層が基板を含む、請求項1に記載の方法。
- 前記基板が、シリコンウェーハまたはサファイアウェーハを含む、請求項11に記載の方法。
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EP3513249B1 (en) | 2023-04-05 |
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KR20190043170A (ko) | 2019-04-25 |
CA3036478C (en) | 2021-09-07 |
US20190227439A1 (en) | 2019-07-25 |
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