JP5870833B2 - 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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- 239000004065 semiconductor Substances 0.000 title claims description 84
- 238000004519 manufacturing process Methods 0.000 title claims description 53
- 238000000034 method Methods 0.000 claims description 78
- 238000005498 polishing Methods 0.000 claims description 29
- 239000000758 substrate Substances 0.000 claims description 25
- 239000004973 liquid crystal related substance Substances 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 description 93
- 239000010410 layer Substances 0.000 description 42
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 26
- 229910052710 silicon Inorganic materials 0.000 description 26
- 239000010703 silicon Substances 0.000 description 26
- 239000000126 substance Substances 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000007687 exposure technique Methods 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007521 mechanical polishing technique Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76819—Smoothing of the dielectric
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- 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
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- 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
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
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- 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
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
- H01L21/31055—Planarisation of the insulating layers involving a dielectric removal step the removal being a chemical etching step, e.g. dry etching
- H01L21/31056—Planarisation of the insulating layers involving a dielectric removal step the removal being a chemical etching step, e.g. dry etching the removal being a selective chemical etching step, e.g. selective dry etching through a mask
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/7684—Smoothing; Planarisation
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/5226—Via connections in a multilevel interconnection structure
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- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73203—Bump and layer connectors
- H01L2224/73204—Bump and layer connectors the bump connector being embedded into the layer connector
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- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/53204—Conductive materials
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
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Description
図1は第1の実施形態により製造される半導体装置の一例としての反射型液晶表示装置20の構成を示す断面図である。ただし本実施形態は、かかる反射型液晶表示装置20の製造に限定されるものではない。
[第2の実施形態]
図6A〜図6Cは、前記図3Gの工程に引き続いて実行される第2の実施形態による半導体装置の製造方法を示す工程断面図である。
[第3の実施形態]
図7A〜図7Cは、前記図3Iの工程に引き続き実行される第3の実施形態による半導体装置の製造工程の一部を示す工程断面図である。
(付記1)
外部領域と前記外部領域の内側にある内部領域とを有する半導体基板上に第1の絶縁膜を形成する工程と、
前記内部領域の前記第1の絶縁膜上に第1の配線を形成する工程と、
前記第1の配線上及び前記第1の絶縁膜上に第2の絶縁膜を形成する工程と、
前記内部領域の前記第2の絶縁膜の膜厚を、前記外部領域における前記第2の絶縁膜の膜厚よりも減少させる工程と、
前記第2の絶縁膜の膜厚を減少させる工程の後で前記第2の絶縁膜を研磨する工程と、
を有することを特徴とする半導体装置の製造方法。
(付記2)
前記第1の絶縁膜中には、前記第1の配線に電気的に接続して別の配線がダマシン法により形成されていることを特徴とする付記1記載の半導体装置の製造方法。
(付記3)
前記第2の絶縁膜の膜厚を減少させる工程は、
前記外部領域の前記第2の絶縁膜上にマスクを形成する工程と、
前記マスクをエッチングマスクとして、前記内部領域の前記第2の絶縁膜の一部を除去する工程と、
前記第2の絶縁膜の一部を除去した後に、前記マスクを除去する工程と、
を有することを特徴とする付記1記載の半導体装置の製造方法。
(付記4)
前記減少させる工程は、前記第1の配線が前記第2の絶縁膜から露出しないように実行されることを特徴とする付記1記載の半導体装置の製造方法。
(付記5)
前記第2の絶縁膜は、前記第1の配線の高さの1.5倍を超える膜厚に形成され、前記減少させる工程は、前記第2の絶縁膜の膜厚を少なくとも10%させることを特徴とする付記4記載の半導体装置の製造方法。
(付記6)
前記半導体基板は、前記外部領域より外側に前記半導体基板の端に達する最外周領域を有し、
前記マスクを形成する工程は、
前記第2の絶縁膜上にレジスト膜を形成する工程と、
前記内部領域及び前記最外周領域の前記レジスト膜を除去する工程と、
を有することを特徴とする付記3に記載の半導体装置の製造方法。
(付記7)
外部領域と前記外部領域の内側にある内部領域とを有する半導体基板上に第1の絶縁膜を形成する工程と、
前記外部領域及び前記内部領域の前記第1の絶縁膜上に第1の配線を形成する工程と、
前記第1の配線層上及び前記第1の絶縁膜上に第2の絶縁膜を形成する工程と、
前記第2の絶縁膜を研磨する工程と、
を有することを特徴とする半導体装置の製造方法。
(付記8)
前記外部領域の前記第1の絶縁膜の膜厚が、前記内部領域における前記第1の絶縁膜の膜厚よりも薄いことを特徴とする付記1乃至7に記載の半導体装置の製造方法。
(付記9)
前記第1の配線を形成する前に、
前記第1の絶縁膜に下層配線開口部を形成する工程と、
前記下層配線開口部に下層導電材料を形成する工程と、
前記第1の絶縁膜及び前記下層導電材料を研磨して下層配線を形成する工程と、
を有する付記8に記載の半導体装置の製造方法。
(付記10)
研磨された前記第2の絶縁膜に前記第1の配線に接続する導電プラグを形成する工程と、
前記第2の絶縁膜上及び前記導電プラグ上に、光反射層を形成する工程と、
をさらに有することを特徴とする付記1乃至9に記載の半導体装置の製造方法。
(付記11)
前記光反射層上に液晶層を形成する工程さらに有することを特徴とする付記10に記載の画面表示装置の製造方法。
外部領域と前記外部領域の内側にある内部領域とを有する半導体基板と、
前記半導体基板上に形成された第1の絶縁膜と、
前記内部領域において前記第1の絶縁膜に形成された下層配線と、
前記外部領域及び前記内部領域の前記第1の絶縁膜上に形成された第1の配線と、
前記配線上に形成された第2の絶縁膜と、
前記第2の絶縁膜中に形成され、前記配線と接続する導電プラグと、
前記第2の絶縁膜上及び前記導電プラグ上に形成された光反射層と、
を有することを特徴とする半導体装置。
前記外部領域における前記第1の絶縁膜の膜厚が、前記内部領域における前記第1の絶縁膜の膜厚よりも薄いことを特徴とする付記12に記載の半導体装置。
20S 半導体装置
21 シリコン基板
21A1,21A2,21A3,21A4 素子領域
21I 素子分離領域
21a ドレインエクステンション領域
21b ソースエクステンション領域
21c ドレイン領域
21d ソース領域
23 ゲート電極
24〜28 層間絶縁膜
24S,25S,26S,27S,28S,28S1,28S2,28S3 傾斜面
24V,27V,28V ビアプラグ
25A,25B,26A Cu配線パタ―ン
26V Cuビアプラグ
28A Al接続パッド
28B Alパッド
28P 突出部
29A 密着層
29B 光反射層
29P 画素電極
40 シリコンウェハ
40A 内部領域
40B 外部領域
Claims (5)
- 外部領域と、前記外部領域の内側にある内部領域と、前記外部領域より外側に最外周領域とを有する半導体基板上に第1の絶縁膜を形成する工程と、
前記内部領域の前記第1の絶縁膜上に第1の配線を形成する工程と、
前記第1の配線上及び前記第1の絶縁膜上に第2の絶縁膜を形成する工程と、
前記第2の絶縁膜上にレジスト膜を形成する工程と、
前記内部領域及び前記半導体基板の端部に接する前記最外周領域の前記レジスト膜を除去して前記外部領域に前記レジスト膜を残す工程と、
前記レジスト膜をエッチングマスクとして、前記内部領域と前記最外周領域の前記第2の絶縁膜の一部を除去して、前記内部領域の前記第2の絶縁膜の膜厚を、前記外部領域の前記第2の絶縁膜の膜厚よりも減少させる工程と、
前記第2の絶縁膜の一部を除去した後に、前記レジスト膜を除去する工程と、
前記レジスト膜を除去する工程の後で前記第2の絶縁膜を研磨する工程と、
を有することを特徴とする半導体装置の製造方法。 - 前記第2の絶縁膜を形成する工程の前において、
前記外部領域の前記第1の絶縁膜の膜厚が前記内部領域における前記第1の絶縁膜の膜厚よりも薄い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。 - 前記第1の配線を形成する前に、
前記第1の絶縁膜に下層配線開口部を形成する工程と、
前記下層配線開口部に下層導電材料を形成する工程と、
前記第1の絶縁膜及び前記下層導電材料を研磨して下層配線を形成する工程と、
を有する請求項2に記載の半導体装置の製造方法。 - 研磨された前記第2の絶縁膜に前記第1の配線に接続する導電プラグを形成する工程と、
前記第2の絶縁膜上及び前記導電プラグ上に、光反射層を形成する工程と、
をさらに有することを特徴とする請求項1乃至3のうち、いずれか一項に記載の半導体装置の製造方法。 - 前記光反射層上に液晶層を形成する工程をさらに有することを特徴とする請求項4に記載の半導体装置の製造方法。
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JP2012099259A JP5870833B2 (ja) | 2012-04-24 | 2012-04-24 | 半導体装置の製造方法 |
US13/736,378 US8901743B2 (en) | 2012-04-24 | 2013-01-08 | Fabrication of semiconductor device including chemical mechanical polishing |
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JP5870833B2 true JP5870833B2 (ja) | 2016-03-01 |
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JP2561007B2 (ja) * | 1993-11-26 | 1996-12-04 | 日本電気株式会社 | 半導体装置の製造方法 |
JP3340333B2 (ja) * | 1996-12-26 | 2002-11-05 | 株式会社東芝 | 半導体装置及びその製造方法 |
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US6861670B1 (en) * | 1999-04-01 | 2005-03-01 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device having multi-layer wiring |
JP4554011B2 (ja) * | 1999-08-10 | 2010-09-29 | ルネサスエレクトロニクス株式会社 | 半導体集積回路装置の製造方法 |
US6325977B1 (en) * | 2000-01-18 | 2001-12-04 | Agilent Technologies, Inc. | Optical detection system for the detection of organic molecules |
JP4643786B2 (ja) * | 2000-02-28 | 2011-03-02 | インテレクチュアル ベンチャーズ ホールディング 45 リミティド ライアビリティ カンパニー | 反射型液晶表示装置用モジュール、その製造方法及び反射型液晶表示装置 |
JP3650035B2 (ja) | 2001-02-22 | 2005-05-18 | シャープ株式会社 | 半導体装置の製造方法 |
KR100611778B1 (ko) * | 2002-09-24 | 2006-08-10 | 주식회사 하이닉스반도체 | 반도체장치 제조방법 |
US7056810B2 (en) * | 2002-12-18 | 2006-06-06 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor apparatus, and semiconductor apparatus and electric appliance |
US7642711B2 (en) * | 2004-07-06 | 2010-01-05 | Fujifilm Corporation | Functional layer having wiring connected to electrode and barrier metal between electrode and wiring |
US7767570B2 (en) * | 2006-03-22 | 2010-08-03 | Taiwan Semiconductor Manufacturing Company, Ltd. | Dummy vias for damascene process |
JP5188259B2 (ja) * | 2008-05-02 | 2013-04-24 | キヤノン株式会社 | 3次元フォトニック結晶を用いた発光素子 |
JP2010219466A (ja) * | 2009-03-19 | 2010-09-30 | Fujitsu Semiconductor Ltd | 半導体装置の製造方法 |
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