JP5550511B2 - 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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- JP5550511B2 JP5550511B2 JP2010218383A JP2010218383A JP5550511B2 JP 5550511 B2 JP5550511 B2 JP 5550511B2 JP 2010218383 A JP2010218383 A JP 2010218383A JP 2010218383 A JP2010218383 A JP 2010218383A JP 5550511 B2 JP5550511 B2 JP 5550511B2
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- 239000004065 semiconductor Substances 0.000 title claims description 249
- 238000004519 manufacturing process Methods 0.000 title claims description 157
- 229910052751 metal Inorganic materials 0.000 claims description 268
- 239000002184 metal Substances 0.000 claims description 268
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 157
- 229910052717 sulfur Inorganic materials 0.000 claims description 157
- 239000011593 sulfur Substances 0.000 claims description 157
- 238000000034 method Methods 0.000 claims description 140
- 238000010438 heat treatment Methods 0.000 claims description 131
- 150000001875 compounds Chemical class 0.000 claims description 72
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 71
- 229910052759 nickel Inorganic materials 0.000 claims description 34
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 claims description 34
- 239000010936 titanium Substances 0.000 claims description 19
- 238000004544 sputter deposition Methods 0.000 claims description 16
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 14
- 239000012535 impurity Substances 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 14
- 238000000151 deposition Methods 0.000 claims description 12
- 239000010955 niobium Substances 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 5
- 229910052735 hafnium Inorganic materials 0.000 claims description 5
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 2
- 229910052720 vanadium Inorganic materials 0.000 claims 2
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical group [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims 2
- 229910052726 zirconium Inorganic materials 0.000 claims 2
- 239000010408 film Substances 0.000 description 407
- 239000000758 substrate Substances 0.000 description 115
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 110
- 229910052710 silicon Inorganic materials 0.000 description 110
- 239000010703 silicon Substances 0.000 description 110
- 230000008569 process Effects 0.000 description 94
- 229910021332 silicide Inorganic materials 0.000 description 83
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 83
- 238000004151 rapid thermal annealing Methods 0.000 description 74
- 230000004048 modification Effects 0.000 description 51
- 238000012986 modification Methods 0.000 description 51
- 239000010410 layer Substances 0.000 description 42
- 230000015572 biosynthetic process Effects 0.000 description 40
- 125000004434 sulfur atom Chemical group 0.000 description 37
- 238000005530 etching Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 12
- 239000002019 doping agent Substances 0.000 description 12
- 239000011229 interlayer Substances 0.000 description 12
- 238000007740 vapor deposition Methods 0.000 description 11
- 230000015556 catabolic process Effects 0.000 description 10
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 9
- 229910021334 nickel silicide Inorganic materials 0.000 description 9
- 230000006866 deterioration Effects 0.000 description 8
- 238000005468 ion implantation Methods 0.000 description 8
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 238000001039 wet etching Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052787 antimony Inorganic materials 0.000 description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
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- H01L29/6659—Lateral single gate silicon transistors where the source and drain or source and drain extensions are self-aligned to the sides of the gate with both lightly doped source and drain extensions and source and drain self-aligned to the sides of the gate, e.g. lightly doped drain [LDD] MOSFET, double diffused drain [DDD] MOSFET
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- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
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- Insulated Gate Type Field-Effect Transistor (AREA)
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Description
本実施の形態の半導体装置の製造方法は、n型半導体上に硫黄を含有する硫黄含有膜を堆積し、硫黄含有膜上に第1の金属を含有する第1の金属膜を堆積し、熱処理によりn型半導体と第1の金属膜を反応させて金属半導体化合物膜を形成するとともに、n型半導体と金属半導体化合物膜との界面に硫黄を導入する。
10とニッケルシリサイド膜26との界面に硫黄原子を含有する界面層28が形成される。
本実施の形態の半導体装置の製造方法は、n型半導体上に硫黄と第1の金属を含有する硫黄含有膜を堆積し、熱処理によりn型半導体と硫黄含有膜を反応させて金属半導体化合物膜を形成するとともに、n型半導体と金属半導体化合物膜との界面に硫黄を導入する。
本実施の形態の半導体装置の製造方法は、n型半導体上に第1の金属を含有する第1の金属膜を堆積し、第1の熱処理によりn型半導体と第1の金属膜を反応させて金属半導体化合物膜を形成し、金属半導体化合物膜上に、硫黄を含有する硫黄含有膜を堆積し、第2の熱処理によりn型半導体と金属半導体化合物膜との界面に硫黄を導入する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、pnダイオードのn側電極の形成に適用される製造方法である点で第1の実施の形態と相違する。以下、第1の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、pnダイオードのn側電極の形成に適用される製造方法である点で第2の実施の形態と相違する。以下、第2の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、pnダイオードのn側電極の形成に適用される製造方法である点で第3の実施の形態と相違する。以下、第3の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、ロジック向けn型MOSFETのソース・ドレイン電極の形成に適用される製造方法である点で第1の実施の形態と相違する。以下、第1の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、ロジック向けn型MOSFETのソース・ドレイン電極の形成に適用される製造方法である点で第2の実施の形態と相違する。以下、第2の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、ロジック向けn型MOSFETのソース・ドレイン電極の形成に適用される製造方法である点で第3の実施の形態と相違する。以下、第3の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、配線層等の基板へのコンタクト電極の形成に適用される製造方法である点で第1の実施の形態と相違する。以下、第1の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、配線層等の基板へのコンタクト電極の形成に適用される製造方法である点で第2の実施の形態と相違する。以下、第2の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、配線層等の基板へのコンタクト電極の形成に適用される製造方法である点で第3の実施の形態と相違する。以下、第3の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、npnバイポーラトランジスタのコレクタ電極の形成に適用される製造方法である点で第1の実施の形態と相違する。以下、第1の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、npnバイポーラトランジスタのコレクタ電極の形成に適用される製造方法である点で第2の実施の形態と相違する。以下、第2の実施の形態と重複する内容については一部記載を省略する。
本実施の形態の半導体装置の製造方法は、縦型パワーMOSFETのドレイン電極の形成に適用される製造方法ではなく、npnバイポーラトランジスタのコレクタ電極の形成に適用される製造方法である点で第3の実施の形態と相違する。以下、第3の実施の形態と重複する内容については一部記載を省略する。
硫黄原子が導入された界面層28が形成される(図32(f))。
20 酸化膜
22 硫黄含有膜
24 第1の金属膜
26 金属半導体化合物膜
28 界面層
30 第2の金属膜
32 硫黄含有膜
Claims (10)
- n型半導体上に硫化ニッケル膜を、硫化ニッケルをターゲットとするスパッタ法により堆積し、
前記硫化ニッケル膜上にニッケルを含有する第1の金属膜を堆積し、
熱処理により前記n型半導体と前記第1の金属膜を反応させて金属半導体化合物膜を形成するとともに、前記n型半導体と前記金属半導体化合物膜との界面に硫黄を導入することを特徴とする半導体装置の製造方法。 - n型半導体上に硫化ニッケル膜を、硫化ニッケルをターゲットとするスパッタ法により堆積し、
熱処理により前記n型半導体と前記硫化ニッケル膜を反応させて金属半導体化合物膜を形成するとともに、前記n型半導体と前記金属半導体化合物膜との界面に硫黄を導入することを特徴とする半導体装置の製造方法。 - n型半導体上にニッケルを含有する第1の金属膜を堆積し、
第1の熱処理により前記n型半導体と前記第1の金属膜を反応させて金属半導体化合物膜を形成し、
前記金属半導体化合物膜上に、硫化ニッケル膜を、硫化ニッケルをターゲットとするスパッタ法により堆積し、
第2の熱処理により前記n型半導体と前記金属半導体化合物膜との界面に硫黄を導入することを特徴とする半導体装置の製造方法。 - n型半導体上に硫化ニッケル膜を、硫化ニッケルをターゲットとするスパッタ法により堆積し、
前記硫化ニッケル膜上にニッケルを含有する第1の金属膜を堆積し、
前記第1の金属膜上にニッケルよりも高いシリサイド化温度を有する金属を含有する第2の金属膜を堆積し、
熱処理により前記n型半導体と前記第1の金属膜を反応させて金属半導体化合物膜を形成するとともに、前記n型半導体と前記金属半導体化合物膜との界面に硫黄を導入することを特徴とする半導体装置の製造方法。 - n型半導体上に硫化ニッケル膜を、硫化ニッケルをターゲットとするスパッタ法により堆積し、
前記硫化ニッケル膜上にニッケルと異なる金属を含有する第2の金属膜を堆積し、
熱処理により前記n型半導体と前記硫化ニッケル膜を反応させて金属半導体化合物膜を形成するとともに、前記n型半導体と前記金属半導体化合物膜との界面に硫黄を導入することを特徴とする半導体装置の製造方法。 - n型半導体上にニッケルを含有する第1の金属膜を堆積し、
第1の熱処理により前記n型半導体と前記第1の金属膜を反応させて金属半導体化合物膜を形成し、
前記金属半導体化合物膜上に硫化ニッケル膜を、硫化ニッケルをターゲットとするスパッタ法により堆積し、
前記硫化ニッケル膜上にニッケルと異なる金属を含有する第2の金属膜を堆積し、
第2の熱処理により前記n型半導体と前記金属半導体化合物膜との界面に硫黄を導入することを特徴とする半導体装置の製造方法。 - 前記第2の金属膜に含有される前記金属が、バナジウム、モリブデン、チタン、ジルコニウム、ハフニウム、タンタル、ニオブ、またはチタンナイトライドであることを特徴とする請求項5または請求項6記載の半導体装置の製造方法。
- n型半導体上に硫化ニッケル膜を、硫化ニッケルをターゲットとするスパッタ法により堆積し、
前記硫化ニッケル膜上にニッケルを含有する第1の金属膜を堆積し、
前記第1の金属膜上にバナジウム、モリブデン、チタン、ジルコニウム、ハフニウム、タンタル、ニオブ、またはチタンナイトライドを含有する第2の金属膜を堆積し、
熱処理により前記n型半導体と前記第1の金属膜を反応させて金属半導体化合物膜を形成するとともに、前記n型半導体と前記金属半導体化合物膜との界面に硫黄を導入することを特徴とする半導体装置の製造方法。 - 前記n型半導体のn型不純物濃度が3×1018cm−3以下であることを特徴とする請求項1ないし請求項8いずれか一項記載の半導体装置の製造方法。
- 請求項1ないし請求項9いずれか一項記載の半導体装置の製造方法により、縦型パワーMOSFETのドレイン電極を形成することを特徴とする半導体装置の製造方法。
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