JP2006190937A - 半導体素子の素子分離膜形成方法 - Google Patents
半導体素子の素子分離膜形成方法 Download PDFInfo
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- JP2006190937A JP2006190937A JP2005156737A JP2005156737A JP2006190937A JP 2006190937 A JP2006190937 A JP 2006190937A JP 2005156737 A JP2005156737 A JP 2005156737A JP 2005156737 A JP2005156737 A JP 2005156737A JP 2006190937 A JP2006190937 A JP 2006190937A
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- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000002955 isolation Methods 0.000 title claims abstract description 66
- 239000004065 semiconductor Substances 0.000 title claims abstract description 62
- 239000000758 substrate Substances 0.000 claims abstract description 43
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 31
- 239000010703 silicon Substances 0.000 claims abstract description 31
- 238000000059 patterning Methods 0.000 claims abstract 2
- 238000011049 filling Methods 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910003902 SiCl 4 Inorganic materials 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 238000004528 spin coating Methods 0.000 claims description 2
- 238000005530 etching Methods 0.000 description 7
- 150000004767 nitrides Chemical class 0.000 description 7
- 230000007547 defect Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007740 vapor deposition 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
- H01L21/70—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
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
-
- 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
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
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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)
- Element Separation (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Abstract
【解決手段】半導体素子の素子分離膜形成方法は、半導体基板上のパッド膜および半導体基板10の所定の深さをパターニングしてトレンチを形成する段階と、前記トレンチの側壁に側壁酸化膜18を形成する段階と、全面に第1トレンチ埋め込み用酸化膜を形成し、前記パッド膜が露出するまで平坦化工程を行い、非活性領域が定義される第1素子分離膜20を形成する段階と、前記パッド膜を除去し、活性領域を定義する前記半導体基板10を露出させる段階と、前記半導体基板10上に前記第1素子分離膜20の高さより高くシリコン層を形成する段階と、全面に第2トレンチ埋め込み用酸化膜を形成し、前記シリコン層が露出するまで平坦化工程を行って第2素子分離膜23を形成することにより、積層された素子分離膜を形成する段階とを含む。
【選択図】図5
Description
12…パッド酸化膜
14…パッド窒化膜
16…フォトレジストパターン
18…側壁酸化膜
20、23…素子分離膜
21…シリコン層
Claims (8)
- 半導体基板上にパッド膜を形成し、所定の領域の前記パッド膜および前記半導体基板の所定の深さをパターニングして非活性領域と活性領域を定義するトレンチを形成する段階と、
前記トレンチの側壁に側壁酸化膜を形成する段階と、
前記側壁酸化膜が形成された結果物の全面に第1トレンチ埋め込み用酸化膜を形成し、前記パッド膜が露出するまで平坦化工程を行い、第1素子分離膜を形成する段階と、
前記パッド膜を除去し、活性領域の前記半導体基板を露出させる段階と、
前記活性領域の露出した半導体基板上に前記第1素子分離膜の高さより高くシリコン層を形成する段階と、
前記結果物の全面に第2トレンチ埋め込み用酸化膜を形成し、前記シリコン層が露出するまで平坦化工程を行って第2素子分離膜を形成することにより、前記第1素子分離膜と前記第2素子分離膜が積層された素子分離膜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素子分離膜形成方法。 - 前記側壁酸化膜は、
シリコン材質の半導体基板のシリコン膜と酸素を結合させる酸化工程を行う工程、または酸化膜を蒸着する工程のいずれか一つで形成することを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。 - 前記第1トレンチ埋め込み用酸化膜または前記第2トレンチ埋め込み用酸化膜は、
LPCVD法、PECVD法およびHDPCVD法のいずれか一つで形成し、あるいはSOG(Spin on glass)工程を用いてスピンコーティングした後アニール工程によって形成することを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。 - 前記シリコン層は、
SiH2Cl2、SiHCl3、SiCl4などのSi系列ソースを用いて選択的エピタキシャル工程によって形成することを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。。 - 前記パターニングされた半導体基板の所定の深さは、
前記第1トレンチ埋め込み用絶縁膜が前記トレンチに容易に埋め込まれるようにする深さであることを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。 - 前記第1トレンチ埋め込み用絶縁膜が前記トレンチに容易に埋め込まれるようにする半導体基板の所定の深さは、
前記半導体基板の表面から500Å〜1000Å程度の深さであることを特徴とする請求項5記載の半導体素子の素子分離膜形成方法。 - 前記シリコン層形成工程の前に、
前記シリコン形成工程が行われるチャンバーと同一のチャンバーで水素プラズマ洗浄工程またはアルゴンプラズマ洗浄工程を行う段階をさらに含むことを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。 - 前記側壁酸化膜は、
前記第1素子分離膜と前記半導体基板の活性領域との間にのみ形成することを特徴とする請求項1記載の半導体素子の素子分離膜形成方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040114180A KR100702769B1 (ko) | 2004-12-28 | 2004-12-28 | 반도체 소자의 소자분리막 형성방법 |
Publications (1)
Publication Number | Publication Date |
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JP2006190937A true JP2006190937A (ja) | 2006-07-20 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2005156737A Pending JP2006190937A (ja) | 2004-12-28 | 2005-05-30 | 半導体素子の素子分離膜形成方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7018905B1 (ja) |
JP (1) | JP2006190937A (ja) |
KR (1) | KR100702769B1 (ja) |
DE (1) | DE102005028628A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009253273A (ja) * | 2008-04-10 | 2009-10-29 | Hynix Semiconductor Inc | 高集積半導体装置内の垂直型トランジスタの製造方法 |
JP2011146700A (ja) * | 2010-01-18 | 2011-07-28 | Samsung Electronics Co Ltd | 最適化されたチャンネル領域を有するmosトランジスタを具備する半導体素子 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7682977B2 (en) * | 2006-05-11 | 2010-03-23 | Micron Technology, Inc. | Methods of forming trench isolation and methods of forming arrays of FLASH memory cells |
KR100842506B1 (ko) * | 2006-12-26 | 2008-07-01 | 동부일렉트로닉스 주식회사 | 반도체 소자의 소자분리막 형성방법 |
CN103227143B (zh) * | 2013-04-08 | 2016-08-24 | 上海华力微电子有限公司 | 浅沟槽隔离工艺 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62132342A (ja) * | 1985-12-05 | 1987-06-15 | Matsushita Electric Ind Co Ltd | 半導体集積回路の製造方法 |
JP2003332457A (ja) * | 1994-09-16 | 2003-11-21 | Toshiba Corp | 半導体装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5994202A (en) | 1997-01-23 | 1999-11-30 | International Business Machines Corporation | Threshold voltage tailoring of the corner of a MOSFET device |
US6090683A (en) | 1997-06-16 | 2000-07-18 | Micron Technology, Inc. | Method of etching thermally grown oxide substantially selectively relative to deposited oxide |
JPH11204788A (ja) * | 1998-01-19 | 1999-07-30 | Toshiba Corp | 半導体装置およびその製造方法 |
US6180492B1 (en) | 1999-01-25 | 2001-01-30 | United Microelectronics Corp. | Method of forming a liner for shallow trench isolation |
KR100354439B1 (ko) * | 2000-12-08 | 2002-09-28 | 삼성전자 주식회사 | 트렌치 소자 분리막 형성 방법 |
KR100568100B1 (ko) * | 2001-03-05 | 2006-04-05 | 삼성전자주식회사 | 트렌치형 소자 분리막 형성 방법 |
DE10222083B4 (de) * | 2001-05-18 | 2010-09-23 | Samsung Electronics Co., Ltd., Suwon | Isolationsverfahren für eine Halbleitervorrichtung |
US6475875B1 (en) | 2001-07-09 | 2002-11-05 | Chartered Semiconductor Manufacturing Ltd. | Shallow trench isolation elevation uniformity via insertion of a polysilicon etch layer |
US6566225B2 (en) * | 2001-08-06 | 2003-05-20 | Macronix International Co., Ltd. | Formation method of shallow trench isolation |
US6798038B2 (en) * | 2001-09-20 | 2004-09-28 | Kabushiki Kaisha Toshiba | Manufacturing method of semiconductor device with filling insulating film into trench |
JP2003163262A (ja) * | 2001-11-28 | 2003-06-06 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
KR20020033706A (ko) * | 2002-04-08 | 2002-05-07 | (주)지피엔이 | 신 aop 공법 및 장치 |
US6500712B1 (en) * | 2002-06-17 | 2002-12-31 | Mosel Vitelic, Inc. | Fabrication of dielectric in trenches formed in a semiconductor substrate for a nonvolatile memory |
-
2004
- 2004-12-28 KR KR1020040114180A patent/KR100702769B1/ko not_active IP Right Cessation
-
2005
- 2005-05-30 JP JP2005156737A patent/JP2006190937A/ja active Pending
- 2005-06-10 US US11/150,033 patent/US7018905B1/en not_active Expired - Fee Related
- 2005-06-20 DE DE102005028628A patent/DE102005028628A1/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62132342A (ja) * | 1985-12-05 | 1987-06-15 | Matsushita Electric Ind Co Ltd | 半導体集積回路の製造方法 |
JP2003332457A (ja) * | 1994-09-16 | 2003-11-21 | Toshiba Corp | 半導体装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009253273A (ja) * | 2008-04-10 | 2009-10-29 | Hynix Semiconductor Inc | 高集積半導体装置内の垂直型トランジスタの製造方法 |
JP2011146700A (ja) * | 2010-01-18 | 2011-07-28 | Samsung Electronics Co Ltd | 最適化されたチャンネル領域を有するmosトランジスタを具備する半導体素子 |
Also Published As
Publication number | Publication date |
---|---|
US7018905B1 (en) | 2006-03-28 |
KR20060075399A (ko) | 2006-07-04 |
KR100702769B1 (ko) | 2007-04-03 |
DE102005028628A1 (de) | 2006-07-06 |
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