JP2014149351A5 - - Google Patents
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- JP2014149351A5 JP2014149351A5 JP2013016967A JP2013016967A JP2014149351A5 JP 2014149351 A5 JP2014149351 A5 JP 2014149351A5 JP 2013016967 A JP2013016967 A JP 2013016967A JP 2013016967 A JP2013016967 A JP 2013016967A JP 2014149351 A5 JP2014149351 A5 JP 2014149351A5
- Authority
- JP
- Japan
- Prior art keywords
- mask blank
- flatness
- phase shift
- substrate
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000758 substrate Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 229910016006 MoSi Inorganic materials 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
Description
なお、この実施の形態1のマスクブランク用基板の製造方法で説明した方法により製造したマスクブランク用基板Mは、バイナリーマスクブランク、位相シフトマスクブランク、ナノインプリント用マスクブランクの製造に使用することができる。バイナリーマスクブランクは、MoSi系、Ta系、Cr系のいずれであってもよい。位相シフトマスクブランクは、ハーフトーン型位相シフトマスクブランク、レベンソン型位相シフトマスクブランク、クロムレス型位相シフトマスクブランクのいずれであってもよい。 The mask blank substrate M manufactured by the method described in the mask blank substrate manufacturing method of the first embodiment can be used for manufacturing a binary mask blank, a phase shift mask blank, and a nanoimprint mask blank. . Binary mask blank is, MoSi-based, Ta system, may be any of the Cr-based. The phase shift mask blank may be any of a halftone type phase shift mask blank, a Levenson type phase shift mask blank, and a chromeless type phase shift mask blank.
D.反射型マスクの製造
次に、このようにして作製された反射型マスクブランク上に、電子線描画(露光)用化学増幅型レジストをスピンコート法により塗布し、加熱及び冷却工程を経て、膜厚が150nmのレジスト膜を形成した。
その後、形成されたレジスト膜に対し、電子線描画装置を用いて所望のパターン描画を行った後、所定の現像液で現像してレジストパターンを形成した。
その後、このレジストパターンをマスクにして、吸収体膜のドライエッチングを行って、保護膜上に吸収体膜パターンを形成した。ドライエッチングガスとしては、塩素(Cl2)ガスを用いた。
その後、レジストパターンを除去し、洗浄を行なった。
D. Manufacture of the reflective mask Next, the thus prepared was reflective mask on blank, a chemically amplified resist for electron beam writing (exposure) was applied by spin coating, through the heating and cooling steps, the film A resist film having a thickness of 150 nm was formed.
Thereafter, a desired pattern was drawn on the formed resist film using an electron beam drawing apparatus, and then developed with a predetermined developer to form a resist pattern.
Thereafter, using this resist pattern as a mask, the absorber film was dry-etched to form an absorber film pattern on the protective film. As a dry etching gas, chlorine (Cl 2 ) gas was used.
Thereafter, the resist pattern was removed and cleaning was performed.
得られたガラス基板の主表面に対して、表面粗さ、平坦度を測定した。
表面粗さは、基板の中心の1μm×1μmの領域に対して、原子間力顕微鏡(AFM)により測定した。表面粗さは、二乗平均平方根粗さ(RMS)で0.10nmであった。
平坦度は、基板の周縁領域を除外した132mm×132mmの領域に対して、平坦度測定装置(トロペル社製 UltraFlat200)により測定した。平坦度は50nmであった。
また、この比較例1の方法により、ガラス基板を50枚作製したところ、平坦度30nm以下のガラス基板の収率は8%であった。
Surface roughness and flatness were measured with respect to the main surface of the obtained glass substrate.
The surface roughness was measured with an atomic force microscope (AFM) for a 1 μm × 1 μm region at the center of the substrate. The surface roughness was 0.10 nm in terms of root mean square roughness (RMS).
The flatness was measured with respect to a 132 mm × 132 mm area excluding the peripheral area of the substrate with a flatness measuring device (UltraFlat 200 manufactured by Tropel). The flatness was 50 nm.
Further, when 50 glass substrates were produced by the method of Comparative Example 1, the yield of the glass substrate having a flatness of 30 nm or less was 8% .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013016967A JP6161913B2 (en) | 2013-01-31 | 2013-01-31 | Method for manufacturing substrate for mask blank, method for manufacturing substrate with multilayer reflective film, method for manufacturing mask blank, and method for manufacturing transfer mask |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013016967A JP6161913B2 (en) | 2013-01-31 | 2013-01-31 | Method for manufacturing substrate for mask blank, method for manufacturing substrate with multilayer reflective film, method for manufacturing mask blank, and method for manufacturing transfer mask |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2014149351A JP2014149351A (en) | 2014-08-21 |
JP2014149351A5 true JP2014149351A5 (en) | 2016-02-12 |
JP6161913B2 JP6161913B2 (en) | 2017-07-12 |
Family
ID=51572389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013016967A Active JP6161913B2 (en) | 2013-01-31 | 2013-01-31 | Method for manufacturing substrate for mask blank, method for manufacturing substrate with multilayer reflective film, method for manufacturing mask blank, and method for manufacturing transfer mask |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6161913B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018020994A1 (en) * | 2016-07-27 | 2018-02-01 | Hoya株式会社 | Mask blank substrate manufacturing method, mask blank manufacturing method, transfer mask manufacturing method, semiconductor device manufacturing method, mask blank substrate, mask blank, and transfer mask |
CN117948787B (en) * | 2024-03-22 | 2024-05-28 | 常州碳禾新材料科技有限公司 | Glass glaze drying and curing device with uniform forming function |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4786899B2 (en) * | 2004-12-20 | 2011-10-05 | Hoya株式会社 | Mask blank glass substrate manufacturing method, mask blank manufacturing method, reflective mask blank manufacturing method, exposure mask manufacturing method, reflective mask manufacturing method, and semiconductor device manufacturing method |
JP4887266B2 (en) * | 2007-10-15 | 2012-02-29 | 株式会社荏原製作所 | Flattening method |
JP5402391B2 (en) * | 2009-01-27 | 2014-01-29 | 信越化学工業株式会社 | Method for processing synthetic quartz glass substrate for semiconductor |
CN101880907B (en) * | 2010-07-07 | 2012-04-25 | 厦门大学 | Electrochemical levelling and polishing processing method with nanometer precision and device thereof |
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2013
- 2013-01-31 JP JP2013016967A patent/JP6161913B2/en active Active
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