JP2007220808A - 半導体装置及びその製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 195
- 238000004519 manufacturing process Methods 0.000 title claims description 65
- 238000002955 isolation Methods 0.000 claims abstract description 78
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 238000005530 etching Methods 0.000 claims description 8
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 112
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 78
- 239000012535 impurity Substances 0.000 description 34
- 229910021332 silicide Inorganic materials 0.000 description 26
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 22
- 229910052814 silicon oxide Inorganic materials 0.000 description 22
- 239000000758 substrate Substances 0.000 description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 17
- 229910052710 silicon Inorganic materials 0.000 description 17
- 239000010703 silicon Substances 0.000 description 17
- 229910052698 phosphorus Inorganic materials 0.000 description 14
- 229910052581 Si3N4 Inorganic materials 0.000 description 12
- 229920002120 photoresistant polymer Polymers 0.000 description 12
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 12
- 125000006850 spacer group Chemical group 0.000 description 12
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 11
- 229910052796 boron Inorganic materials 0.000 description 11
- 238000005468 ion implantation Methods 0.000 description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 10
- 239000011574 phosphorus Substances 0.000 description 10
- 230000006866 deterioration Effects 0.000 description 9
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 6
- 229910052785 arsenic Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 6
- 229920005591 polysilicon Polymers 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 5
- 238000001020 plasma etching Methods 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 238000000137 annealing Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
【解決手段】 素子分離領域12と、素子分離領域によって規定された半導体素子領域11であって、チャネル形成部11aと、素子分離領域とチャネル形成部との間に形成された凹部とを有する半導体素子領域11と、凹部に形成されたエピタキシャル半導体部19と、を備え、半導体素子領域は、素子分離領域とエピタキシャル半導体部との間に壁部11bを有する。
【選択図】 図12
Description
図3〜図12は、第1の実施形態に係る半導体装置の製造工程を模式的に示した断面図である。図3(a)〜図12(a)はp型MISトランジスタ領域の断面図であり、図3(b)〜図12(b)はn型MISトランジスタ領域の断面図である。
図13〜図16は、第2の実施形態に係る半導体装置の製造工程を模式的に示した断面図である。なお、基本的な構成及び基本的な製造方法は第1の実施形態と同様であるため、第1の実施形態で説明した事項については説明を省略する。また、説明の簡単化のため、本実施形態では、p型MISトランジスタ領域での製造工程のみ図示している。
図17〜図19は、第3の実施形態に係る半導体装置の製造工程を模式的に示した断面図である。なお、基本的な構成及び基本的な製造方法は第1の実施形態と同様であるため、第1の実施形態で説明した事項については説明を省略する。また、説明の簡単化のため、本実施形態では、p型MISトランジスタ領域での製造工程のみ図示している。
図20〜図31は、第4の実施形態に係る半導体装置の製造工程を模式的に示した断面図である。図20(a)〜図31(a)はp型MISトランジスタ領域の断面図であり、図20(b)〜図31(b)はn型MISトランジスタ領域の断面図である。
図32〜図34は、第5の実施形態に係る半導体装置の製造工程を模式的に示した断面図である。なお、基本的な構成及び基本的な製造方法は第4の実施形態と同様であるため、第4の実施形態で説明した事項については説明を省略する。また、説明の簡単化のため、本実施形態では、p型MISトランジスタ領域での製造工程のみ図示している。
図35〜図37は、第6の実施形態に係る半導体装置の製造工程を模式的に示した断面図である。なお、基本的な構成及び基本的な製造方法は第4の実施形態と同様であるため、第4の実施形態で説明した事項については説明を省略する。また、説明の簡単化のため、本実施形態では、p型MISトランジスタ領域での製造工程のみ図示している。
図38及び図39は、第7の実施形態に係る半導体装置の製造工程を模式的に示した断面図である。図38(a)及び図39(a)はp型MISトランジスタ領域の断面図であり、図38(b)及び図39(b)はn型MISトランジスタ領域の断面図である。なお、基本的な構成及び基本的な製造方法は第1の実施形態と同様であるため、第1の実施形態で説明した事項については説明を省略する。
図40は、第8の実施形態に係る半導体装置の構成を模式的に示した断面図である。図40(a)はp型MISトランジスタ領域の断面図であり、図40(b)はn型MISトランジスタ領域の断面図である。なお、基本的な構成及び基本的な製造方法は第1の実施形態と同様であるため、第1の実施形態で説明した事項については説明を省略する。
図41は、第9の実施形態に係る半導体装置の構成を模式的に示した断面図である。図41(a)はp型MISトランジスタ領域の断面図であり、図41(b)はn型MISトランジスタ領域の断面図である。なお、基本的な構成及び基本的な製造方法は第4の実施形態と同様であるため、第4の実施形態で説明した事項については説明を省略する。
図42は、第10の実施形態に係る半導体装置の構成を模式的に示した断面図である。図42(a)はp型MISトランジスタ領域の断面図であり、図42(b)はn型MISトランジスタ領域の断面図である。なお、基本的な構成及び基本的な製造方法は第4の実施形態と同様であるため、第4の実施形態で説明した事項については説明を省略する。
12…素子分離領域 13…ゲート電極 14…保護部
15…側壁スペーサ 16…フォトレジストパターン
17…ゲート構造 18…凹部
19…SiGe層 20…フォトレジストパターン
21…イオン注入層 22…p型不純物層
23…n型不純物層 24…シリコン酸化膜
25…シリコン窒化膜 26…シリサイド膜
31…Siエピタキシャル層 33…ストレスライナー膜
41…シリコン酸化膜 42…シリコン窒化膜 43…シリコン酸化膜
44…フォトレジストパターン 45…ゲート構造
46…凹部 47、48…SiGe層
48a…ファセット 49…フォトレジストパターン
51…Siエピタキシャル層 51a…ファセット
61、62、63…エピタキシャル半導体部
Claims (7)
- 素子分離領域と、
前記素子分離領域によって規定された半導体素子領域であって、チャネル形成部と、前記素子分離領域と前記チャネル形成部との間に形成された凹部とを有する半導体素子領域と、
前記凹部に形成されたエピタキシャル半導体部と、
を備え、
前記半導体素子領域は、前記素子分離領域と前記エピタキシャル半導体部との間に壁部を有する
ことを特徴とする半導体装置。 - 素子分離領域と、
前記素子分離領域によって規定された半導体素子領域であって、チャネル形成部と、前記素子分離領域と前記チャネル形成部との間に形成された凹部とを有する半導体素子領域と、
前記凹部に形成されたエピタキシャル半導体部であって、前記凹部の底面上にコンフォーマルに形成され且つ前記素子分離領域に接する下層エピタキシャル部と、前記下層エピタキシャル部上に形成され且つファセットを有する上層エピタキシャル部とを含むエピタキシャル半導体部と、
を備えたことを特徴とする半導体装置。 - 素子分離領域と、
前記素子分離領域によって規定された半導体素子領域であって、チャネル形成部と、前記素子分離領域と前記チャネル形成部との間に形成された凹部とを有する半導体素子領域と、
前記凹部の底面上にコンフォーマルに形成され且つ前記素子分離領域に接するエピタキシャル半導体部と、
前記エピタキシャル半導体部を覆い、前記チャネル形成部にストレスを与えるストレス発生膜と、
を備えたことを特徴とする半導体装置。 - 前記エピタキシャル半導体部上に形成された導電部をさらに備えた
ことを特徴とする請求項1乃至3のいずれかに記載の半導体装置。 - 素子分離領域と、前記素子分離領域によって規定された半導体素子領域を形成する工程と、
前記半導体素子領域の一部を異方性エッチングして、チャネル形成部と、前記素子分離領域と前記チャネル形成部との間の凹部を形成するとともに、前記素子分離領域と前記凹部との間に壁部を形成する工程と、
前記凹部にエピタキシャル半導体部を形成する工程と、
を備えたことを特徴とする半導体装置の製造方法。 - 素子分離領域と、前記素子分離領域によって規定された半導体素子領域を形成する工程と、
前記半導体素子領域の一部を等方性エッチングして、チャネル形成部と、前記素子分離領域と前記チャネル形成部との間の凹部を形成する工程と、
前記凹部の底面上にコンフォーマルに、前記素子分離領域に接する下層エピタキシャル部を形成する工程と、
前記下層エピタキシャル部上に、ファセットを有する上層エピタキシャル部を形成する工程と、
を備えたことを特徴とする半導体装置の製造方法。 - 素子分離領域と、前記素子分離領域によって規定された半導体素子領域を形成する工程と、
前記半導体素子領域の一部を等方性エッチングして、チャネル形成部と、前記素子分離領域と前記チャネル形成部との間の凹部を形成する工程と、
前記凹部の底面上にコンフォーマルに、前記素子分離領域に接するエピタキシャル半導体部を形成する工程と、
前記エピタキシャル半導体部を覆い、前記チャネル形成部にストレスを与えるストレス発生膜を形成する工程と、
を備えたことを特徴とする半導体装置の製造方法。
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