JP4908756B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP4908756B2 JP4908756B2 JP2004372037A JP2004372037A JP4908756B2 JP 4908756 B2 JP4908756 B2 JP 4908756B2 JP 2004372037 A JP2004372037 A JP 2004372037A JP 2004372037 A JP2004372037 A JP 2004372037A JP 4908756 B2 JP4908756 B2 JP 4908756B2
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- 239000004065 semiconductor Substances 0.000 title claims description 72
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000011161 development Methods 0.000 claims description 82
- 238000000034 method Methods 0.000 claims description 37
- 238000012545 processing Methods 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 2
- 235000012431 wafers Nutrition 0.000 description 76
- 230000018109 developmental process Effects 0.000 description 74
- 238000009792 diffusion process Methods 0.000 description 18
- 239000007788 liquid Substances 0.000 description 13
- 239000002253 acid Substances 0.000 description 11
- 238000003672 processing method Methods 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 230000009849 deactivation Effects 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 238000001459 lithography Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000007687 exposure technique Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 238000001650 pulsed electrochemical detection Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/30—Imagewise removal using liquid means
- G03F7/3021—Imagewise removal using liquid means from a wafer supported on a rotating chuck
- G03F7/3028—Imagewise removal using liquid means from a wafer supported on a rotating chuck characterised by means for on-wafer monitoring of the processing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32139—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer using masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67051—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly spraying means, e.g. nozzles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/6715—Apparatus for applying a liquid, a resin, an ink or the like
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Description
化学増幅型レジストは、半導体装置の微細化に非常に有効な材料ではあるが、その性質上いくつかの寸法変動要因を含んでいる。第1の変動要因は、大気中の塩基性物質、例えば、アンモニア(NH3)などとの中和反応による酸の失活である。既述したように、化学増幅型レジストは光化学反応で発生する酸を利用しているため、この酸が大気中の塩基性物質と中和反応を起こして失活すると、レジスト表面で溶解抑止剤の分解が起こりにくくなり、表面が難溶化してパターン寸法の変動が生じやすくなる。そのため、化学増幅型レジストを扱うクリーンルーム内のエリアでは、大気中の塩基性物質を除去するためにケミカルフィルターが用いられている。また、化学増幅型レジストの表面に酸性を有する保護膜を形成することなども行われている。第2の変動要因は、露光によりレジスト中に発生した酸の拡散である。露光により発生した酸は、露光後からポストベーク、いわゆるPEB(Post Exposure Bake)までの引き置き時間でレジスト中を徐々に拡散し、露光領域よりも広範囲に溶解抑止剤を分解する。その結果、パターンの線幅寸法が所望値に対して大きく減少してしまうのである。このような2つの変動要因、すなわち、酸の失活及び拡散による寸法変動現象は、一般にPED(Post Exposure bake Delay effect)と呼ばれている。
半導体ウエハ100は、その主面に、例えば、図1に示すような6×6のチップレイアウトを持つものとする。すなわち、半導体ウエハ100は、X軸方向のチップ数Nx=6、Y軸方向のチップ数Ny=6の合計36チップを備えている。そして、各チップには、トランジスタなどの半導体素子によって集積回路が形成されるものとする。
図6は、本発明に係る現像処理方法を実現するための現像処理装置1000の概略構成図である。図6(a)は上方からの平面図であり、図6(b)は断面図である。
本発明の一実施形態に係る半導体装置の製造方法によれば、露光後からPEBまでの引き置き時間が短いチップ側、すなわち、露光が最後に行われたチップ側から現像処理を行うことにより、引き置き時間の短いチップに対しては現像時間が長く、引き置き時間の長いチップに対しては現像時間が短く設定されるため、ウエハ内のPED(拡散)によるパターン寸法差を現像処理によって相殺することができる。特に、スキャン方式の現像処理方法においては、露光が最後に行われたチップ側から現像処理を行うように現像液供給ノズル5のスキャン方向を調整することにより、PED(拡散)によるパターン寸法差を現像処理によって相殺することができる。これにより、同一ウエハ内でのパターン寸法差を低減し、半導体装置を精度よく形成することができるようになる。また、製造歩留まりの向上も可能となる。
1・・・カップ
1a・・・廃液管
2・・・スピンチャック
3・・・駆動モータ
4・・・検出器
5・・・現像液供給ノズル
5a・・・現像液供給管
5b・・・現像液供給部
5c・・・ノズルスキャンアーム
6・・・リンスノズル
6a・・・洗浄液供給管
6b・・・洗浄液供給部
6c・・・ノズルスキャンアーム
7・・・ガイドレール
8・・・制御部
8a・・・メモリ
9・・・操作部
Claims (2)
- 互いに直交する第1の方向と第2の方向とにマトリックス状に配置されたチップレイアウトを備える半導体基板の表面に化学増幅型レジスト膜を形成するレジスト成膜工程と、
前記半導体基板の前記第1の方向に前記チップレイアウトの一チップ列の一端を始点とし、一チップ列の他端までステップアンドリピートして露光した後、前記第2の方向に隣接する一チップ列に移動して第1の方向とは逆方向に一チップ列の他端から一端までステップアンドリピートして一チップ列の一端まで露光し、その後前記第2の方向に隣接する一チップ列に移動し、上記露光順序を繰り返して前記半導体基板上の前記チップレイアウトのチップを全て露光する露光工程と、
長尺状の現像液供給ノズルを前記半導体基板上でスキャンするように移動させて、前記露光工程において最後に露光された一チップ列から、前記第1の方向については一斉に現像するとともに、前記第2の方向については、露光方向とは逆方向に一チップ列ずつ現像を行い、前記露光工程の最初に露光された一チップ列まで現像を行う現像工程であって、前記最後に露光された一チップ列と前記最初に露光された一チップ列との間の前記露光順序に起因する引き置き時間差によるレジストパターンの寸法変動が、前記最後に露光された一チップ列と前記最初に露光された一チップ列との間の現像時間差によるレジストパターンの寸法変動により相殺されるように現像を行う前記現像工程と、
を含むことを特徴とする半導体装置の製造方法。 - 前記現像工程は、さらに前記現像液供給ノズルのスキャンスピードを調整して現像処理を行い、前記スキャンスピードは、前記最後に露光された一チップ列と前記最初に露光された一チップ列との間の前記露光順序に起因する引き置き時間差により発生する寸法差に相当する現像時間でスキャンを行うように調整されることを特徴とする、請求項1に記載の半導体装置の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004372037A JP4908756B2 (ja) | 2004-12-22 | 2004-12-22 | 半導体装置の製造方法 |
US11/209,751 US20060134563A1 (en) | 2004-12-22 | 2005-08-24 | Method for manufacturing semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004372037A JP4908756B2 (ja) | 2004-12-22 | 2004-12-22 | 半導体装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2006179721A JP2006179721A (ja) | 2006-07-06 |
JP4908756B2 true JP4908756B2 (ja) | 2012-04-04 |
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JP2004372037A Expired - Fee Related JP4908756B2 (ja) | 2004-12-22 | 2004-12-22 | 半導体装置の製造方法 |
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US (1) | US20060134563A1 (ja) |
JP (1) | JP4908756B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106873318A (zh) * | 2017-03-31 | 2017-06-20 | 昆山国显光电有限公司 | 一种显影装置以及显影处理方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0470754A (ja) * | 1990-07-12 | 1992-03-05 | Canon Inc | 露光方法および装置 |
JPH10172889A (ja) * | 1996-12-12 | 1998-06-26 | Matsushita Electron Corp | 露光方法 |
US6382849B1 (en) * | 1999-06-09 | 2002-05-07 | Tokyo Electron Limited | Developing method and developing apparatus |
US6447964B2 (en) * | 2000-03-01 | 2002-09-10 | Nikon Corporation | Charged-particle-beam microlithography methods including chip-exposure sequences for reducing thermally induced lateral shift of exposure position on the substrate |
JP4490555B2 (ja) * | 2000-05-26 | 2010-06-30 | 東芝モバイルディスプレイ株式会社 | フォトレジスト層の現像方法 |
JP3963792B2 (ja) * | 2002-07-08 | 2007-08-22 | 松下電器産業株式会社 | 現像方法および現像装置 |
JP4005879B2 (ja) * | 2002-08-30 | 2007-11-14 | 株式会社東芝 | 現像方法、基板処理方法、及び基板処理装置 |
US6770424B2 (en) * | 2002-12-16 | 2004-08-03 | Asml Holding N.V. | Wafer track apparatus and methods for dispensing fluids with rotatable dispense arms |
JP4200788B2 (ja) * | 2003-03-03 | 2008-12-24 | 株式会社ニコン | 露光システム、露光装置、基板処理装置、パターン形成方法、及び半導体デバイス製造方法 |
US7186486B2 (en) * | 2003-08-04 | 2007-03-06 | Micronic Laser Systems Ab | Method to pattern a substrate |
-
2004
- 2004-12-22 JP JP2004372037A patent/JP4908756B2/ja not_active Expired - Fee Related
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2005
- 2005-08-24 US US11/209,751 patent/US20060134563A1/en not_active Abandoned
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JP2006179721A (ja) | 2006-07-06 |
US20060134563A1 (en) | 2006-06-22 |
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