JP2006100579A - 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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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 59
- 239000004065 semiconductor Substances 0.000 title claims abstract description 48
- 238000005468 ion implantation Methods 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 29
- 239000012535 impurity Substances 0.000 claims description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052710 silicon Inorganic materials 0.000 claims description 18
- 239000010703 silicon Substances 0.000 claims description 18
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 14
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 43
- 229910052814 silicon oxide Inorganic materials 0.000 abstract description 43
- 238000009792 diffusion process Methods 0.000 abstract description 35
- 239000000758 substrate Substances 0.000 abstract description 26
- 230000015556 catabolic process Effects 0.000 abstract description 25
- 238000005530 etching Methods 0.000 abstract description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 25
- 229920005591 polysilicon Polymers 0.000 description 24
- 238000000206 photolithography Methods 0.000 description 10
- 230000001133 acceleration Effects 0.000 description 8
- 229920002120 photoresistant polymer Polymers 0.000 description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 7
- 229910052796 boron Inorganic materials 0.000 description 7
- 238000000151 deposition Methods 0.000 description 5
- WNUPENMBHHEARK-UHFFFAOYSA-N silicon tungsten Chemical compound [Si].[W] WNUPENMBHHEARK-UHFFFAOYSA-N 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 241000293849 Cordylanthus Species 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 229910016570 AlCu Inorganic materials 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- -1 for example Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000005360 phosphosilicate glass Substances 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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- H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
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Abstract
【解決手段】 本発明の半導体装置の製造方法では、高耐圧MOSトランジスタが形成される領域のエピタキシャル層5上面にシリコン酸化膜11を堆積する。その後、エピタキシャル層5上面に、低耐圧MOSトランジスタのゲート酸化膜の膜厚に合わせたシリコン酸化膜12を堆積する。その後、高耐圧MOSトランジスタ上面のシリコン酸化膜12の膜厚をエッチングにより調整し、P型の拡散層24、25をイオン注入法により形成する。この製造方法により、ゲート酸化膜の膜厚の異なる素子を低コストで製造することができる。
【選択図】 図6
Description
5 N型のエピタキシャル層
9 第1の素子形成領域
10 第2の素子形成領域
11 シリコン酸化膜
12 シリコン酸化膜
13 ポリシリコン膜
14 シリコン窒化膜
18 LOCOS酸化膜
19 ポリシリコン膜
20 タングステンシリコン膜
21 シリコン酸化膜
22 ゲート電極
23 ゲート電極
24 P型の拡散層
25 P型の拡散層
Claims (4)
- 半導体層を準備し、前記半導体層に形成された分離領域により区画された複数の素子形成領域に、第1のMOSトランジスタと、前記第1のMOSトランジスタよりゲート酸化膜の膜厚の薄い第2のMOSトランジスタとを形成する半導体装置の製造方法において、
前記第1のMOSトランジスタの形成領域の前記半導体層表面に、第1の絶縁膜を選択的に形成した後、前記第1及び第2のMOSトランジスタの形成領域の前記半導体層表面に、第2の絶縁膜を形成する工程と、
前記第1のMOSトランジスタの形成領域にゲート電極を形成し、前記ゲート電極近傍に位置するドレイン領域及びソース領域の形成領域上面の前記第1及び第2の絶縁膜の膜厚を薄くする工程と、
前記半導体層上方から不純物をイオン注入し、前記半導体層にドレイン領域及びソース領域を形成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1及び第2の絶縁膜の膜厚を薄くする工程では、前記第2のMOSトランジスタの形成領域の前記第2の絶縁膜を同一工程で除去す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。
- 前記ドレイン領域及びソース領域を形成する工程では、前記ゲート電極を用いて自己整合技術により前記第1及び第2の絶縁膜を薄くした後、前記ゲート電極上方から前記ゲート電極を用いて自己整合技術によりイオン注入を行う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。
- 前記ゲート電極を形成する工程では、前記第2の絶縁膜上面に、フィールド酸化膜が形成される領域に開口部が設けられるように第1のシリコン膜及びシリコン窒化膜を形成し、前記第1のシリコン膜及びシリコン窒化膜をマスクとして用い前記半導体層にフィールド酸化膜を形成した後、前記シリコン窒化膜を除去し、前記第1のシリコン膜上面に第2のシリコン膜を堆積し、前記第1及び第2のシリコン膜を選択的に除去す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 (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004285024A JP4804734B2 (ja) | 2004-09-29 | 2004-09-29 | 半導体装置の製造方法 |
TW094131263A TWI278059B (en) | 2004-09-29 | 2005-09-12 | Manufacturing method of semiconductor device |
KR1020050087712A KR100662688B1 (ko) | 2004-09-29 | 2005-09-21 | 반도체 장치의 제조 방법 |
US11/233,648 US7402474B2 (en) | 2004-09-29 | 2005-09-23 | Manufacturing method of semiconductor device |
CNB2005101076367A CN100345281C (zh) | 2004-09-29 | 2005-09-29 | 半导体装置的制造方法 |
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JP2004285024A JP4804734B2 (ja) | 2004-09-29 | 2004-09-29 | 半導体装置の製造方法 |
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JP2006100579A true JP2006100579A (ja) | 2006-04-13 |
JP4804734B2 JP4804734B2 (ja) | 2011-11-02 |
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JP2004285024A Expired - Fee Related JP4804734B2 (ja) | 2004-09-29 | 2004-09-29 | 半導体装置の製造方法 |
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US (1) | US7402474B2 (ja) |
JP (1) | JP4804734B2 (ja) |
KR (1) | KR100662688B1 (ja) |
CN (1) | CN100345281C (ja) |
TW (1) | TWI278059B (ja) |
Cited By (1)
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US9397171B2 (en) | 2014-02-24 | 2016-07-19 | Seiko Epson Corporation | Semiconductor device and manufacturing method for the same |
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US7309636B2 (en) * | 2005-11-07 | 2007-12-18 | United Microelectronics Corp. | High-voltage metal-oxide-semiconductor device and method of manufacturing the same |
CN104037171B (zh) * | 2013-03-04 | 2016-09-28 | 旺宏电子股份有限公司 | 半导体元件及其制造方法与操作方法 |
US9349830B2 (en) * | 2013-03-05 | 2016-05-24 | Macronix International Co., Ltd. | Semiconductor element and manufacturing method and operating method of the same |
US10418281B2 (en) * | 2016-06-30 | 2019-09-17 | Mitsubishi Electric Corporation | Method for manufacturing semiconductor device |
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JP2000049113A (ja) * | 1998-07-30 | 2000-02-18 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
JP2003092362A (ja) * | 2001-09-17 | 2003-03-28 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
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US4897364A (en) * | 1989-02-27 | 1990-01-30 | Motorola, Inc. | Method for locos isolation using a framed oxidation mask and a polysilicon buffer layer |
US5039625A (en) * | 1990-04-27 | 1991-08-13 | Mcnc | Maximum areal density recessed oxide isolation (MADROX) process |
US5439842A (en) * | 1992-09-21 | 1995-08-08 | Siliconix Incorporated | Low temperature oxide layer over field implant mask |
US5977607A (en) * | 1994-09-12 | 1999-11-02 | Stmicroelectronics, Inc. | Method of forming isolated regions of oxide |
JP2833581B2 (ja) * | 1996-04-25 | 1998-12-09 | 日本電気株式会社 | 半導体装置の製造方法 |
JP3967440B2 (ja) * | 1997-12-09 | 2007-08-29 | 株式会社ルネサステクノロジ | 半導体集積回路装置の製造方法 |
JP4931267B2 (ja) * | 1998-01-29 | 2012-05-16 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2002009168A (ja) * | 2000-06-19 | 2002-01-11 | Nec Corp | 半導体装置及びその製造方法 |
JP2002057330A (ja) * | 2000-08-10 | 2002-02-22 | Sanyo Electric Co Ltd | 絶縁ゲート型半導体装置及びその製造方法 |
JP2004039681A (ja) | 2002-06-28 | 2004-02-05 | Fuji Film Microdevices Co Ltd | 半導体装置およびその製造方法 |
JP4098208B2 (ja) | 2003-10-01 | 2008-06-11 | 東芝マイクロエレクトロニクス株式会社 | 半導体装置の製造方法 |
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JP2000049113A (ja) * | 1998-07-30 | 2000-02-18 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
JP2003092362A (ja) * | 2001-09-17 | 2003-03-28 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
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US9397171B2 (en) | 2014-02-24 | 2016-07-19 | Seiko Epson Corporation | Semiconductor device and manufacturing method for the same |
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CN100345281C (zh) | 2007-10-24 |
KR20060051481A (ko) | 2006-05-19 |
TW200614413A (en) | 2006-05-01 |
TWI278059B (en) | 2007-04-01 |
JP4804734B2 (ja) | 2011-11-02 |
KR100662688B1 (ko) | 2007-01-02 |
CN1767172A (zh) | 2006-05-03 |
US7402474B2 (en) | 2008-07-22 |
US20060068538A1 (en) | 2006-03-30 |
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