JP2017525999A - 多層スタックを有する極紫外線反射素子、及び極紫外線反射素子を製造する方法 - Google Patents
多層スタックを有する極紫外線反射素子、及び極紫外線反射素子を製造する方法 Download PDFInfo
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Abstract
Description
Claims (15)
- 極紫外線反射素子を製造する方法であって、
基板を提供することと、
前記基板に多層スタックを形成することであって、前記多層スタックが、ブラッグリフレクタを形成するために、シリコンから形成された第1の反射層と、ニオブ又は炭化ニオブから形成された第2の反射層とを有する複数の反射層ペアを含む、形成することと、
酸化と物理的浸食を減らすことによって前記多層スタックを保護するために、前記多層スタックに、及び前記層スタックの上にキャッピング層を形成することと
を含む方法。 - 前記多層スタックを形成することが、3.5から4.15ナノメートルの厚さを有するシリコンから前記第1の反射層を形成することと、3.5ナノメートルの厚さのニオブから、又は2.8ナノメートルの厚さの炭化ニオブから形成された前記第2の反射層を形成することを含む、請求項1に記載の方法。
- 前記多層スタックを形成することが、前記第1の反射層と前記第2の反射層との間にバリア層を形成することを含み、前記バリア層は、1オングストロームと5オングストロームの間の厚さを有する炭素から形成され、前記バリア層は、ケイ素化合物の形成を低減するためである、請求項1に記載の方法。
- 前記多層スタックを形成することが、前記多層スタックと前記キャッピング層との間にバリア層を形成することを含み、前記バリア層は、ケイ素化合物の形成を低減するために1オングストロームと5オングストロームの間の厚さを有する炭素から形成される、請求項1に記載の方法。
- 前記多層スタックを形成することが、前記多層スタックと前記基板との間にバリア層を形成することを含み、前記バリア層は、ケイ素化合物の形成を低減するために1オングストロームと5オングストロームの間の厚さを有する炭素から形成される、請求項1に記載の方法。
- 極紫外線反射素子であって、
基板と、
基板上の多層スタックであって、ブラッグリフレクタを形成するために、シリコンから形成された第1の反射層と、ニオブ又は炭化ニオブから形成された第2の反射層とを有する複数の反射層ペアを含む多層スタックと、
酸化及び物理的浸食を減らすことによって前記多層スタックを保護するための、前記多層スタックの、及び前記多層スタックの上のキャッピング層と
を備える、極紫外線反射素子。 - 前記多層スタックが、3.5から4.15ナノメートルの厚さを有するシリコンから形成された前記第1の反射層と、3.5ナノメートルの厚さのニオブから、又は2.8ナノメートルの厚さの炭化ニオブから形成された前記第2の反射層を含む、請求項6に記載の極紫外線反射素子。
- 前記多層スタックが、前記第1の反射層と前記第2の反射層との間にバリア層を含み、前記バリア層は、1オングストロームと5オングストロームの間の厚さを有する炭素から形成され、前記バリア層は、ケイ素化合物の形成を低減するためである、請求項6に記載の極紫外線反射素子。
- 前記多層スタックが、前記多層スタックと前記キャッピング層との間にバリア層を含み、前記バリア層は、ケイ素化合物の形成を低減するために1オングストロームと5オングストロームの間の厚さを有する炭素から形成される、請求項6に記載の極紫外線反射素子。
- 前記多層スタックが、前記多層スタックと前記基板との間にバリア層を含み、前記バリア層は、ケイ素化合物の形成を低減するために1オングストロームと5オングストロームの間の厚さを有する炭素から形成される、請求項6に記載の極紫外線反射素子。
- 極紫外線反射素子作製システムであって、
基板に多層スタックを堆積させるための第1の堆積システムであって、前記多層スタックが、ブラッグリフレクタを形成するために、シリコンから形成された第1の反射層と、ニオブ又は炭化ニオブから形成された第2の反射層とを有する複数の反射層ペアを含む、第1の堆積システムと、
酸化及び物理的浸食を減らすことによって前記多層スタックを保護するために、前記多層スタックにキャッピング層を形成するための第2の堆積システムと
を備えるシステム。 - 前記第1の堆積システムは、3.5から4.15ナノメートルの厚さを有するシリコンから前記第1の反射層を形成するため、及び3.5ナノメートルの厚さのニオブから又は2.8ナノメートルの厚さの炭化ニオブから前記第2の反射層を形成するためのものである、請求項11に記載の極紫外線反射素子作製システム。
- 前記第1の堆積システムが、前記第1の反射層と前記第2の反射層との間にバリア層を形成するためのものであり、前記バリア層は、1オングストロームと5オングストロームの間の厚さを有する炭素から形成され、前記バリア層は、ケイ素化合物の形成を低減するためのものである、請求項11に記載の極紫外線反射素子作製システム。
- 前記第1の堆積システムが、前記多層スタックと前記キャッピング層との間にバリア層を形成するためのものであり、前記バリア層は、ケイ素化合物の形成を低減するために、1オングストロームと5オングストロームとの間の厚さを有する炭素から形成される、請求項11に記載の極紫外線反射素子作製システム。
- 前記第1の堆積システムが、前記多層スタックと前記基板との間にバリア層を形成するためのものであり、前記バリア層が、ケイ素化合物の形成を低減するために1オングストロームと5オングストロームとの間の厚さを有する炭素から形成される、請求項11に記載の極紫外線反射素子作製システム。
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CN106471603A (zh) | 2017-03-01 |
TW201602646A (zh) | 2016-01-16 |
JP6636496B2 (ja) | 2020-01-29 |
US20160011502A1 (en) | 2016-01-14 |
US20170131637A1 (en) | 2017-05-11 |
EP3167474A1 (en) | 2017-05-17 |
US10012908B2 (en) | 2018-07-03 |
SG11201610503RA (en) | 2017-01-27 |
KR20170029596A (ko) | 2017-03-15 |
WO2016007395A1 (en) | 2016-01-14 |
EP3167474A4 (en) | 2018-04-18 |
KR101885191B1 (ko) | 2018-08-03 |
TWI604228B (zh) | 2017-11-01 |
CN106471603B (zh) | 2020-08-07 |
US9581890B2 (en) | 2017-02-28 |
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