JPWO2007142239A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JPWO2007142239A1 JPWO2007142239A1 JP2008520592A JP2008520592A JPWO2007142239A1 JP WO2007142239 A1 JPWO2007142239 A1 JP WO2007142239A1 JP 2008520592 A JP2008520592 A JP 2008520592A JP 2008520592 A JP2008520592 A JP 2008520592A JP WO2007142239 A1 JPWO2007142239 A1 JP WO2007142239A1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 103
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 145
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 145
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 39
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 39
- 238000002955 isolation Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 229910021332 silicide Inorganic materials 0.000 claims description 14
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 abstract description 21
- 239000010703 silicon Substances 0.000 abstract description 21
- 229910021334 nickel silicide Inorganic materials 0.000 abstract description 17
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 abstract description 17
- 150000004767 nitrides Chemical class 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 65
- 238000004519 manufacturing process Methods 0.000 description 53
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 32
- 239000000758 substrate Substances 0.000 description 23
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 20
- 229910052796 boron Inorganic materials 0.000 description 20
- 229920002120 photoresistant polymer Polymers 0.000 description 20
- 229910052759 nickel Inorganic materials 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 13
- 238000001039 wet etching Methods 0.000 description 11
- 238000001312 dry etching Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000000059 patterning Methods 0.000 description 5
- 238000000206 photolithography Methods 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
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- 239000002390 adhesive tape Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
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Abstract
Description
本発明は、日本国特許出願:特願2006−159779号(平成18年6月8日出願)の優先権主張に基づくものであり、同出願の全記載内容は引用をもって本書に組み込み記載されているものとする。
本発明は、半導体装置に関し、特に、チャネル領域に圧縮歪みが加えられたpチャネル型MISFETを有する半導体装置に関する。
2、102 素子分離領域
3、103 ゲート絶縁膜
4、104 ゲート電極
5、105 ソース/ドレイン拡張領域
6、106 シリコン酸化膜
7、107 ゲート側壁
7´ 拡散層側壁
8、108 ソース/ドレイン
9、109 ニッケルシリサイド
10、110 強い圧縮応力を有するシリコン窒化膜
12 弱い圧縮応力を有するシリコン窒化膜
13 小さいゲート側壁
14 シリコン酸化膜
15 シリコン窒化膜
16 ゲート側壁
17 ゲート側壁
18 リセス部
19 リセス部
20 Nウェル
21 Pウェル
22 引張応力を有するシリコン窒化膜
23 シリコン酸化膜
24、25、26、27、28 フォトレジスト膜
111 部分的な剥がれ部
第1〜3の視点において、前記第2の膜は、シリコン窒化膜であることが好ましい。
第1〜3の視点において、前記第2の膜は、水素を含むことができる。
前記第1の膜は、シリコン窒化膜であることが好ましい。
前記第1の膜は、水素を含むことができる。
前記第1の膜は、シリコン酸化膜であってよい。
第1〜5の視点において、前記第1の膜の厚さは、5nm以上であることが好ましい。
各視点において、前記第1の膜の厚さは、10nm以上であることが好ましい。
各視点において、前記MISFETは、pチャネル型MISFETであることが好ましい。
各視点において、前記第1の膜と前記ソース/ドレインの界面に金属シリサイド膜を有することが好ましい。
各視点において、少なくとも前記ゲート電極上部において前記第1の膜と前記第2の膜が除去されていることが好ましい。
各視点において、前記ゲート電極の両側に配されるとともに前記ゲート電極よりも低いゲート側壁を備えることが好ましい。
各視点において、前記ゲート電極の両側に配されるとともに断面形状がL字型に形成されたゲート側壁を備えることが好ましい。
各視点において、前記ソース/ドレインは、前記ゲート電極下のゲート絶縁膜よりも低く掘り込まれていることが好ましい。
各視点において、前記ソース/ドレインの周囲に形成されるとともに前記ソース/ドレインの上面よりも低く掘り込まれた素子分離領域と、前記ソース/ドレインの側面に形成された拡散層側壁とを備えることが好ましい。
(実施形態1)
本発明の実施形態1に係る半導体装置について図面を用いて説明する。図1は、本発明の実施形態1に係る半導体装置の製造方法を模式的に示した工程断面図である。なお、本明細書では、ソース/ドレインと言った場合、ソース/ドレイン上部の金属シリサイド部も含むものとする。
本発明の実施形態2に係る半導体装置について図面を用いて説明する。図2は、本発明の実施形態2に係る半導体装置の製造方法を模式的に示した工程断面図である。
本発明の実施形態3に係る半導体装置について図面を用いて説明する。図4は、本発明の実施形態3に係る半導体装置の製造方法を模式的に示した工程断面図である。
本発明の実施形態4に係る半導体装置について図面を用いて説明する。図6〜図8は、本発明の実施形態4に係る半導体装置の製造方法を模式的に示した工程断面図である。
本発明の実施形態5に係る半導体装置について図面を用いて説明する。図9、10は、本発明の実施形態5に係る半導体装置の製造方法を模式的に示した工程断面図である。
本発明の実施形態6に係る半導体装置について図面を用いて説明する。図11〜13は、本発明の実施形態6に係る半導体装置の製造方法を模式的に示した工程断面図である。
本発明の実施形態7に係る半導体装置について図面を用いて説明する。図14〜16は、本発明の実施形態7に係る半導体装置の製造方法を模式的に示した工程断面図である。
本発明の実施形態8に係る半導体装置について図面を用いて説明する。図17〜19は、本発明の実施形態8に係る半導体装置の製造方法を模式的に示した工程断面図である。
本発明の全開示(請求の範囲を含む)の枠内において、さらにその基本的技術思想に基づいて、実施形態ないし実施例の変更・調整が可能である。また、本発明の請求の範囲(クレーム)の枠内において、種々の開示要素の多様な組み合せないし選択が可能である。
Claims (22)
- MISFETを有する半導体装置であって、
前記MISFETのソース/ドレイン上部の少なくとも一部を覆うとともにゲート電極の高さより膜厚が薄い第1の膜と、
前記第1の膜の上に配された第2の膜と、
を有し、
前記第2の膜は、応力を有する応力具有膜であり、
前記第1の膜と前記ソース/ドレイン表面との密着性と、前記第1の膜と前記第2の膜との密着性は、前記第2の膜と前記ソース/ドレインを密着した場合の密着性よりも高くなるように構成されていることを特徴とする半導体装置。 - 前記第2の膜の応力は、圧縮応力であることを特徴とする請求項1記載の半導体装置。
- MISFETを有する半導体装置であって、
前記MISFETのソース/ドレイン上部の少なくとも一部を覆うとともにゲート電極の高さより膜厚が薄い第1の膜と、
前記第1の膜の上に配された第2の膜と、
を有し、
前記第1の膜と前記第2の膜は、圧縮応力を有する応力具有膜であり、
前記第1の膜の圧縮応力は、前記第2の膜の圧縮応力より小さいことを特徴とする半導体装置。 - MISFETを有する半導体装置であって、
前記MISFETのソース/ドレイン上部の少なくとも一部を覆うとともにゲート電極の高さより膜厚が薄い第1の膜と、
前記第1の膜の上に配された第2の膜と、
を有し、
前記第1の膜は、応力を有さず、
前記第2の膜は、圧縮応力を有する応力具有膜であることを特徴とする半導体装置。 - 前記第2の膜は、シリコン窒化膜であることを特徴とする請求項1乃至4のいずれか一に記載の半導体装置。
- 前記第2の膜は、水素を含むことを特徴とする請求項5記載の半導体装置。
- 前記第1の膜は、シリコン窒化膜であることを特徴とする請求項1乃至6のいずれか一に記載の半導体装置。
- 前記第1の膜は、水素を含むことを特徴とする請求項7記載の半導体装置。
- 前記第1の膜は、シリコン酸化膜であることを特徴とする請求項1乃至6のいずれか一に記載の半導体装置。
- MISFETを有する半導体装置であって、
前記MISFETのソース/ドレイン上部の少なくとも一部を覆うとともにゲート電極の高さより膜厚が薄い第1の膜と、
前記第1の膜の上に配された第2の膜と、
を有し、
前記第1の膜と前記第2の膜は、シリコン窒化膜であり、
前記第1の膜は、前記第2の膜よりも窒素濃度が高いことを特徴とする半導体装置。 - 前記第1の膜は、水素を含むことを特徴とする請求項10に記載の半導体装置。
- 前記第2の膜は、水素を含むことを特徴とする請求項10又は11記載の半導体装置。
- MISFETを有する半導体装置であって、
前記MISFETのソース/ドレイン上部の少なくとも一部を覆うとともにゲート電極の高さより膜厚が薄い第1の膜と、
前記第1の膜の上に配された第2の膜と、
を有し、
前記第1の膜と前記第2の膜は、水素を含むシリコン窒化膜であり、
前記第1の膜は、前記第2の膜より、窒素原子と水素原子の結合の濃度に対するシリコン原子と水素原子の結合の濃度の比が高いことを特徴とする半導体装置。 - 前記第1の膜の厚さは、5nm以上であることを特徴とする請求項1乃至13のいずれか一に記載の半導体装置。
- 前記第1の膜の厚さは、10nm以上であることを特徴とする請求項14記載の半導体装置。
- 前記MISFETは、pチャネル型MISFETであることを特徴とする請求項1乃至15のいずれか一に記載の半導体装置。
- 前記第1の膜と前記ソース/ドレインの界面に金属シリサイド膜を有することを特徴とする請求項1乃至16のいずれか一に記載の半導体装置。
- 少なくとも前記ゲート電極上部において前記第1の膜と前記第2の膜が除去されていることを特徴とする請求項1乃至17のいずれか一に記載の半導体装置。
- 前記ゲート電極の両側に配されるとともに前記ゲート電極よりも低いゲート側壁を備えることを特徴とする請求項1乃至18のいずれか一に記載の半導体装置。
- 前記ゲート電極の両側に配されるとともに断面形状がL字型に形成されたゲート側壁を備えることを特徴とする請求項1乃至18のいずれか一に記載の半導体装置。
- 前記ソース/ドレインは、前記ゲート電極下のゲート絶縁膜よりも低く掘り込まれていることを特徴とする請求項1乃至20のいずれか一に記載の半導体装置。
- 前記ソース/ドレインの周囲に形成されるとともに前記ソース/ドレインの上面よりも低く掘り込まれた素子分離領域と、
前記ソース/ドレインの側面に形成された拡散層側壁と、
を備えることを特徴とする請求項1乃至20のいずれか一に記載の半導体装置。
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JP5309619B2 (ja) * | 2008-03-07 | 2013-10-09 | ソニー株式会社 | 半導体装置およびその製造方法 |
JP5235486B2 (ja) * | 2008-05-07 | 2013-07-10 | パナソニック株式会社 | 半導体装置 |
DE102008030854B4 (de) | 2008-06-30 | 2014-03-20 | Advanced Micro Devices, Inc. | MOS-Transistoren mit abgesenkten Drain- und Source-Bereichen und nicht-konformen Metallsilizidgebieten und Verfahren zum Herstellen der Transistoren |
US7977754B2 (en) * | 2008-07-25 | 2011-07-12 | Taiwan Semiconductor Manufacturing Company, Ltd. | Poly resistor and poly eFuse design for replacement gate technology |
KR20110135771A (ko) * | 2010-06-11 | 2011-12-19 | 삼성전자주식회사 | 반도체 집적 회로 장치의 제조 방법 |
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JP5712985B2 (ja) * | 2012-08-27 | 2015-05-07 | ソニー株式会社 | 半導体装置 |
CN103489787B (zh) * | 2013-09-22 | 2016-04-13 | 上海华力微电子有限公司 | 提高源漏接触和氮化硅薄膜黏附力的方法 |
US10263107B2 (en) * | 2017-05-01 | 2019-04-16 | The Regents Of The University Of California | Strain gated transistors and method |
US20200411633A1 (en) * | 2019-06-26 | 2020-12-31 | Texas Instruments Incorporated | Integrated circuits including composite dielectric layer |
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