JP4956370B2 - 半導体素子のパターン形成方法 - Google Patents
半導体素子のパターン形成方法 Download PDFInfo
- Publication number
- JP4956370B2 JP4956370B2 JP2007276349A JP2007276349A JP4956370B2 JP 4956370 B2 JP4956370 B2 JP 4956370B2 JP 2007276349 A JP2007276349 A JP 2007276349A JP 2007276349 A JP2007276349 A JP 2007276349A JP 4956370 B2 JP4956370 B2 JP 4956370B2
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- oxide film
- layer
- thickness
- forming
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 44
- 239000004065 semiconductor Substances 0.000 title claims description 37
- 230000007261 regionalization Effects 0.000 title claims description 14
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 43
- 229920005591 polysilicon Polymers 0.000 claims description 43
- 238000005530 etching Methods 0.000 claims description 23
- 150000004767 nitrides Chemical class 0.000 claims description 17
- 229910003481 amorphous carbon Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- 239000005368 silicate glass Substances 0.000 claims 1
- 239000005380 borophosphosilicate glass Substances 0.000 description 23
- 230000018109 developmental process Effects 0.000 description 3
- 238000001459 lithography Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0332—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their composition, e.g. multilayer masks, materials
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/0337—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/0338—Process specially adapted to improve the resolution of the mask
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/942—Masking
- Y10S438/948—Radiation resist
- Y10S438/95—Multilayer mask including nonradiation sensitive layer
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Drying Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Semiconductor Memories (AREA)
Description
このようなフォトリソグラフィ工程において、解像度(Resolution)と焦点深度(Depth of Focus:DOF)は2つの重要な核心要素(issue)である。これらのうち解像度(R)は下記の式(1)のように表わすことができる。
半導体基板を提供する段階と、半導体基板の上部に被食刻層を形成し、被食刻層の上部にハードマスク層を形成する段階と、ハードマスク層の上部に第1の酸化膜パターンを形成し、第1の酸化膜パターンの上部に窒化膜パターンを形成してハードマスク層を選択的に露出する段階と、ハードマスク層、第1の酸化膜パターン及び窒化膜パターンの露出した部分の上部に第1の厚さを有する第1のポリシリコン層を形成する段階と、第1のポリシリコン層の上部に第2の厚さを有する第2の酸化膜を形成する段階と、第2の酸化膜の上部に第3の厚さを有する第2のポリシリコン層を形成する段階と、窒化膜パターンを露出するまで第2のポリシリコン層、第2の酸化膜及び第1のポリシリコン層を平坦化する段階と、窒化膜パターンを除去して第1の酸化膜パターンを露出する段階と、酸化物質とポリシリコン物質の間の食刻選択比に従い第1の酸化膜パターンと第2の酸化膜を食刻する段階と、第1のポリシリコン層と第2のポリシリコン層の上部を食刻マスクにハードマスク層を食刻してハードマスク層パターンを形成する段階と、ハードマスク層パターンをマスクに被食刻層を食刻して微細パターンを形成する段階とを含むことを特徴とする。
図2a〜図2hは、本発明の一実施形態に係る半導体素子のパターン形成方法を示す断面図である。半導体基板100の上部に被食刻層110、第1の非晶質炭素層(Amorphous-Carbon)120、第1のBPSG(Boro Phospho Silicate Glass)酸化膜130及び窒化膜135を順次形成する。ここで、被食刻層110は大凡100〜600℃の温度下において酸化膜で形成する。被食刻層110の厚さは大凡100〜1,000nmであるのが好ましい。なお、第1の非晶質炭素層120はハードマスク層で形成し、その厚さは大凡100〜500nmであるのが好ましい。さらに、第1のBPSG酸化膜130の厚さは大凡100〜1,000nmであるのが好ましい。
20、110 被食刻層
20a 被食刻パターン
30 ハードマスク層
30a 第1のハードマスクパターン
32 第2のハードマスクパターン
40 第1の感光膜パターン
45 第2の感光膜パターン
110a 微細パターン
120 第1の非晶質炭素層
120a ハードマスクパターン
130 第1のBPSG酸化膜
130a 第1のBPSG酸化パターン
135 窒化膜
135a 窒化パターン
140 第2の非晶質炭素層
140a 第2の非晶質炭素パターン
150 反射防止膜
150a 反射防止パターン
160 感光膜パターン
160a、160b 線幅
170 第1のポリシリコン層
170a 第1のポリシリコン層の下部部分
180 第2のBPSG酸化膜
190 第2のポリシリコン層
Claims (12)
- 半導体基板を提供する段階と、
前記半導体基板の上部に被食刻層を形成し、前記被食刻層の上部にハードマスク層を形成する段階と、
前記ハードマスク層の上部に第1の酸化膜パターンを形成し、前記第1の酸化膜パターンの上部に窒化膜パターンを形成して前記ハードマスク層を選択的に露出する段階と、
前記ハードマスク層、前記第1の酸化膜パターン及び前記窒化膜パターンの露出した部分の上部に第1の厚さを有する第1のポリシリコン層を形成する段階と、
前記第1のポリシリコン層の上部に第2の厚さを有する第2の酸化膜を形成する段階と、
前記第2の酸化膜の上部に第3の厚さを有する第2のポリシリコン層を形成する段階と、
前記窒化膜パターンを露出するまで前記第2のポリシリコン層、前記第2の酸化膜及び前記第1のポリシリコン層を平坦化する段階と、
前記窒化膜パターンを除去して前記第1の酸化膜パターンを露出する段階と、
酸化物質とポリシリコン物質の間の食刻選択比に従い前記第1の酸化膜パターンと前記第2の酸化膜を食刻する段階と、
前記第1のポリシリコン層と前記第2のポリシリコン層の上部を食刻マスクに前記ハードマスク層を食刻してハードマスク層パターンを形成する段階と、
前記ハードマスク層パターンをマスクに前記被食刻層を食刻して微細パターンを形成する段階と、
を含むことを特徴とする半導体素子のパターン形成方法。 - 前記被食刻層は酸化膜で形成することを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記被食刻層は100〜600℃の温度下で形成され、その厚さは100〜1,000nmであることを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記ハードマスク層は非晶質炭素層で形成することを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記ハードマスク層の厚さは100〜500nmであることを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記第1の酸化膜パターン及び前記第2の酸化膜はBPSG(Boro-Phosphor-Silicate-Glass)酸化膜で形成することを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記第1の酸化膜パターンの厚さは100〜1,000nmであることを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記第1の酸化膜パターンの線幅と隣接した前記第1の酸化膜パターンの間に画成されたスペースの線幅の比は1:5であることを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記第1の厚さは前記第2の厚さと同一であり、前記第1の厚さと前記第2の酸化膜の厚さは30〜50nmであることを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記第3の厚さは、前記第2の酸化膜の上部表面から100〜500nmであることを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記食刻選択比は、前記酸化物質の食刻が前記ポリシリコン物質の食刻より20倍速いことを特徴とする請求項1に記載の半導体素子のパターン形成方法。
- 前記微細パターンの線幅と隣接した前記微細パターンの間に画成されるスペースの線幅の比は1:1であることを特徴とする請求項1に記載の半導体素子のパターン形成方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2006-0137028 | 2006-12-28 | ||
KR1020060137028A KR100827526B1 (ko) | 2006-12-28 | 2006-12-28 | 반도체 소자의 미세 패턴 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008166718A JP2008166718A (ja) | 2008-07-17 |
JP4956370B2 true JP4956370B2 (ja) | 2012-06-20 |
Family
ID=39584623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007276349A Expired - Fee Related JP4956370B2 (ja) | 2006-12-28 | 2007-10-24 | 半導体素子のパターン形成方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7510973B2 (ja) |
JP (1) | JP4956370B2 (ja) |
KR (1) | KR100827526B1 (ja) |
CN (1) | CN100552882C (ja) |
TW (1) | TWI346978B (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100850216B1 (ko) | 2007-06-29 | 2008-08-04 | 삼성전자주식회사 | 더블 패터닝 공정을 이용하는 반도체 소자의 미세 패턴형성 방법 |
KR100934836B1 (ko) * | 2008-06-19 | 2009-12-31 | 주식회사 하이닉스반도체 | 반도체소자의 미세패턴 형성방법 |
KR101435520B1 (ko) | 2008-08-11 | 2014-09-01 | 삼성전자주식회사 | 반도체 소자 및 반도체 소자의 패턴 형성 방법 |
KR101540083B1 (ko) | 2008-10-22 | 2015-07-30 | 삼성전자주식회사 | 반도체 소자의 패턴 형성 방법 |
KR100994715B1 (ko) | 2008-12-31 | 2010-11-17 | 주식회사 하이닉스반도체 | 4중 패터닝을 이용한 반도체 소자의 미세 패턴 형성방법 |
CN108109966B (zh) * | 2018-01-30 | 2021-09-17 | 德淮半导体有限公司 | 静态随机存取存储器及其制造方法 |
US11766092B2 (en) * | 2020-02-21 | 2023-09-26 | Nike, Inc. | Sole structure for article of footwear |
CN113571418B (zh) * | 2021-05-31 | 2024-03-08 | 上海华力集成电路制造有限公司 | 一种FinFET的超级阱形成方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030002145A (ko) * | 2001-06-30 | 2003-01-08 | 주식회사 하이닉스반도체 | 반도체소자의 패턴 형성 방법 |
KR100955927B1 (ko) * | 2003-06-30 | 2010-05-03 | 주식회사 하이닉스반도체 | 반도체소자의 미세패턴 형성방법 |
JP4447433B2 (ja) * | 2004-01-15 | 2010-04-07 | Necエレクトロニクス株式会社 | 半導体装置の製造方法及び半導体装置 |
KR100674970B1 (ko) * | 2005-04-21 | 2007-01-26 | 삼성전자주식회사 | 이중 스페이서들을 이용한 미세 피치의 패턴 형성 방법 |
JP2007165862A (ja) * | 2005-11-15 | 2007-06-28 | Toshiba Corp | 半導体装置の製造方法 |
DE102006001680B3 (de) * | 2006-01-12 | 2007-08-09 | Infineon Technologies Ag | Herstellungsverfahren für eine FinFET-Transistoranordnung und entsprechende FinFET-Transistoranordnung |
KR100672123B1 (ko) * | 2006-02-02 | 2007-01-19 | 주식회사 하이닉스반도체 | 반도체 소자의 미세 패턴 형성방법 |
-
2006
- 2006-12-28 KR KR1020060137028A patent/KR100827526B1/ko not_active IP Right Cessation
-
2007
- 2007-06-29 US US11/819,854 patent/US7510973B2/en not_active Expired - Fee Related
- 2007-07-10 TW TW096125059A patent/TWI346978B/zh not_active IP Right Cessation
- 2007-07-19 CN CNB2007101294835A patent/CN100552882C/zh not_active Expired - Fee Related
- 2007-10-24 JP JP2007276349A patent/JP4956370B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
TWI346978B (en) | 2011-08-11 |
TW200828430A (en) | 2008-07-01 |
KR100827526B1 (ko) | 2008-05-06 |
CN101211762A (zh) | 2008-07-02 |
US20080160772A1 (en) | 2008-07-03 |
CN100552882C (zh) | 2009-10-21 |
JP2008166718A (ja) | 2008-07-17 |
US7510973B2 (en) | 2009-03-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4956370B2 (ja) | 半導体素子のパターン形成方法 | |
KR101087835B1 (ko) | 반도체 소자의 미세 패턴 형성방법 | |
KR100784062B1 (ko) | 반도체 소자의 미세 패턴 형성방법 | |
US8465908B2 (en) | Method for forming fine patterns of semiconductor device | |
JP5017570B2 (ja) | 半導体素子のパターン形成方法 | |
US20090075485A1 (en) | Method for forming pattern of semiconductor device | |
KR101150639B1 (ko) | 반도체 소자의 패턴 형성 방법 | |
JP5001109B2 (ja) | 半導体素子の微細パターン形成方法 | |
KR20110055912A (ko) | 반도체 소자의 콘택홀 형성방법 | |
TW200939301A (en) | Method for manufacturing a semiconductor device | |
KR20100104861A (ko) | 반도체 소자의 패턴 형성 방법 | |
US10734284B2 (en) | Method of self-aligned double patterning | |
CN101471235A (zh) | 制造半导体器件的方法 | |
US8304174B2 (en) | Method for fabricating semiconductor device | |
JP2008042174A (ja) | マスクパターン形成方法 | |
KR100950480B1 (ko) | 스페이스 패터닝 기술을 이용한 반도체 소자의 활성영역형성방법 | |
JP5120100B2 (ja) | 半導体装置の製造方法及びレチクルの形成方法 | |
KR100816210B1 (ko) | 반도체 장치 형성 방법 | |
KR100939168B1 (ko) | 반도체 소자의 패턴 형성 방법 | |
KR20030049116A (ko) | 불화아르곤 노광원을 이용한 반도체 소자 제조 방법 | |
KR101096209B1 (ko) | 반도체 소자의 제조 방법 | |
KR20070106277A (ko) | 피치 감소 방법 | |
KR101095041B1 (ko) | 반도체소자의 미세패턴 형성방법 | |
KR20080094376A (ko) | 반도체 소자의 금속 배선 형성 방법 | |
KR20080063887A (ko) | 반도체 소자의 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20101007 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20120222 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120306 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120316 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150323 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150323 Year of fee payment: 3 |
|
LAPS | Cancellation because of no payment of annual fees |