JP2008078316A - パターン形成方法 - Google Patents
パターン形成方法 Download PDFInfo
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- JP2008078316A JP2008078316A JP2006254709A JP2006254709A JP2008078316A JP 2008078316 A JP2008078316 A JP 2008078316A JP 2006254709 A JP2006254709 A JP 2006254709A JP 2006254709 A JP2006254709 A JP 2006254709A JP 2008078316 A JP2008078316 A JP 2008078316A
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- contact hole
- resist
- pattern
- insulating layer
- contact
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- 238000000034 method Methods 0.000 title claims abstract description 99
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000005530 etching Methods 0.000 claims abstract description 16
- 239000004065 semiconductor Substances 0.000 claims abstract description 14
- 238000009792 diffusion process Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 25
- 230000007261 regionalization Effects 0.000 description 15
- 230000009977 dual effect Effects 0.000 description 6
- 238000001459 lithography Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31144—Etching the insulating layers by chemical or physical means 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
- H01L21/70—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
- H01L21/76801—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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76807—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 by forming openings in dielectrics for dual damascene structures
- H01L21/76811—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 by forming openings in dielectrics for dual damascene structures involving multiple stacked pre-patterned 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
- H01L21/70—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
- H01L21/76801—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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76807—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 by forming openings in dielectrics for dual damascene structures
- H01L21/76813—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 by forming openings in dielectrics for dual damascene structures involving a partial via etch
-
- 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
- H01L21/70—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
- H01L21/76801—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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76816—Aspects relating to the layout of the pattern or to the size of vias or trenches
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
【解決手段】パターン形成方法は、絶縁層20の第1のコンタクトホール11を形成すべき領域を含んだ第2のコンタクトホール13を形成しない領域の上にブロック膜21を形成する工程と、ブロック膜21及び絶縁層20の上に、第1、第2のコンタクトホール11,13を形成するための開口を有するレジスト膜30を形成する工程と、レジスト膜30をマスクとしてエッチングすることにより、ブロック膜21及び絶縁層20の中に第1のコンタクトホール11を、絶縁層20の中に第2のコンタクトホール13を、それぞれ形成し、絶縁層20上面からの深さが第2のコンタクトホール13より第1のコンタクトホール11の方が浅く、第1のコンタクトホール11が半導体基板1に接触しないように形成する工程とを含む。
【選択図】 図8
Description
図1は、本発明の第1の実施形態に係るコンタクトホールのパターン形成方法で、半導体基板上に形成された絶縁層の中に形成する3種類のコンタクトホール11、12、13を上面から見たレイアウト図を示す。
本発明の第2の実施形態に係るパターン形成方法は、デュアルダマシーンプロセスにおいて二層レジストプロセスを用いたものである。
20…絶縁層、21、22…レジスト(ブロック膜)、30…別のレジスト、
31…反射防止膜(ARC)、70…シリコン酸化膜、71…ハードマスク、
100、101、211、212、213…フリンジ無しのゲート、
102、214、215、216…フリンジ有りのゲート、103…不純物拡散層、
72…第1のレジスト、73…第2のレジスト、
713、714、716、718,720…配線パターン、730、740…配線材料。
Claims (5)
- 半導体基板の主表面上に形成された絶縁層に深さの異なる第1、第2のコンタクトホールを形成するパターン形成方法であって、
前記絶縁層の前記第1のコンタクトホールを形成すべき領域を含んだ前記第2のコンタクトホールを形成しない領域の上にブロック膜を形成する工程と、
前記ブロック膜及び前記絶縁層の上に、前記第1、第2のコンタクトホールを形成するための開口を有するレジスト膜を形成する工程と、
前記レジスト膜をマスクとしてエッチングすることにより、前記ブロック膜及び前記絶縁層の中に前記第1のコンタクトホールを、前記絶縁層の中に前記第2のコンタクトホールを、それぞれ形成し、前記絶縁層上面からの深さが前記第2のコンタクトホールより前記第1のコンタクトホールの方が浅く、前記第1のコンタクトホールが前記半導体基板に接触しないように形成する工程と
を含むことを特徴とするパターン形成方法。 - 前記第2のコンタクトホールが前記絶縁層或いは前記半導体基板に形成された不純物拡散層に接触した状態で前記エッチングを終了させる
ことを特徴とする請求項1に記載のパターン形成方法。 - 前記第1のコンタクトホールは前記エッチングの終了時に、前記不純物拡散層をソースあるいはドレインとするトランジスタのゲート電極に接続された配線であって、その配線の前記半導体基板の主表面と水平方向の幅が前記第1のコンタクトホールの同一方向の幅よりも細い配線に接触している
ことを特徴とする請求項2に記載のパターン形成方法。 - 前記ブロック膜はレジスト材からなる
ことを特徴とする請求項1に記載のパターン形成方法。 - 前記ブロック膜を形成する工程の後であって、前記レジスト膜を形成する工程の前に、前記ブロック膜に対して不溶化処理を行う
ことを特徴とする請求項1または4に記載のパターン形成方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006254709A JP4334558B2 (ja) | 2006-09-20 | 2006-09-20 | パターン形成方法 |
US11/857,275 US8101516B2 (en) | 2006-09-20 | 2007-09-18 | Method of forming contact hole pattern in semiconductor integrated circuit device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006254709A JP4334558B2 (ja) | 2006-09-20 | 2006-09-20 | パターン形成方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008078316A true JP2008078316A (ja) | 2008-04-03 |
JP4334558B2 JP4334558B2 (ja) | 2009-09-30 |
Family
ID=39189157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006254709A Expired - Fee Related JP4334558B2 (ja) | 2006-09-20 | 2006-09-20 | パターン形成方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8101516B2 (ja) |
JP (1) | JP4334558B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021503715A (ja) * | 2017-11-20 | 2021-02-12 | インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation | 半導体デバイス内のアモルファス・シリコン・ハードマスク上のレジスト層をパターニングするための方法、アモルファス・シリコン・ハードマスクのレジスト付着を増大させるための方法、および構造 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090011370A1 (en) * | 2007-06-11 | 2009-01-08 | Hiroko Nakamura | Pattern forming method using two layers of resist patterns stacked one on top of the other |
CN102751241B (zh) * | 2012-06-29 | 2014-05-21 | 京东方科技集团股份有限公司 | 一种阵列基板过孔的制作方法及阵列基板制作工艺 |
GB2516448B (en) * | 2013-07-22 | 2016-12-07 | Atlantic Inertial Systems Ltd | Reactive Ion Etching |
US9362168B2 (en) | 2013-08-29 | 2016-06-07 | Kabushiki Kaisha Toshiba | Non-volatile memory device and method for manufacturing same |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08279488A (ja) | 1995-04-05 | 1996-10-22 | Sony Corp | 半導体装置の製造方法 |
AUPQ980700A0 (en) * | 2000-08-31 | 2000-09-21 | Unisearch Limited | Fabrication of nanoelectronic circuits |
US6787906B1 (en) | 2000-10-30 | 2004-09-07 | Samsung Electronics Co., Ltd. | Bit line pad and borderless contact on bit line stud with localized etch stop layer formed in an undermined region |
DE10219398B4 (de) * | 2002-04-30 | 2007-06-06 | Infineon Technologies Ag | Herstellungsverfahren für eine Grabenanordnung mit Gräben unterschiedlicher Tiefe in einem Halbleitersubstrat |
JP2005079567A (ja) * | 2003-09-04 | 2005-03-24 | Matsushita Electric Ind Co Ltd | 半導体装置、その製造方法およびカメラ |
US7329953B2 (en) * | 2003-10-29 | 2008-02-12 | Taiwan Semiconductor Manufacturing Co., Ltd. | Structure for reducing leakage currents and high contact resistance for embedded memory and method for making same |
US7375027B2 (en) * | 2004-10-12 | 2008-05-20 | Promos Technologies Inc. | Method of providing contact via to a surface |
JP2006173186A (ja) | 2004-12-13 | 2006-06-29 | Toshiba Corp | 半導体装置、パターンレイアウト作成方法および露光マスク |
KR100562308B1 (ko) * | 2004-12-15 | 2006-03-22 | 동부아남반도체 주식회사 | 반도체소자의 콘택홀 형성방법 |
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2006
- 2006-09-20 JP JP2006254709A patent/JP4334558B2/ja not_active Expired - Fee Related
-
2007
- 2007-09-18 US US11/857,275 patent/US8101516B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021503715A (ja) * | 2017-11-20 | 2021-02-12 | インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation | 半導体デバイス内のアモルファス・シリコン・ハードマスク上のレジスト層をパターニングするための方法、アモルファス・シリコン・ハードマスクのレジスト付着を増大させるための方法、および構造 |
JP7268946B2 (ja) | 2017-11-20 | 2023-05-08 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 半導体デバイス内のアモルファス・シリコン・ハードマスク上のレジスト層をパターニングするための方法、アモルファス・シリコン・ハードマスクのレジスト付着を増大させるための方法、および構造 |
Also Published As
Publication number | Publication date |
---|---|
JP4334558B2 (ja) | 2009-09-30 |
US8101516B2 (en) | 2012-01-24 |
US20080070402A1 (en) | 2008-03-20 |
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