JP2009500823A - コンタクト絶縁層および異なる特性を有するシリサイド領域を形成するための技法 - Google Patents
コンタクト絶縁層および異なる特性を有するシリサイド領域を形成するための技法 Download PDFInfo
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- JP2009500823A JP2009500823A JP2008519304A JP2008519304A JP2009500823A JP 2009500823 A JP2009500823 A JP 2009500823A JP 2008519304 A JP2008519304 A JP 2008519304A JP 2008519304 A JP2008519304 A JP 2008519304A JP 2009500823 A JP2009500823 A JP 2009500823A
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- 229910021332 silicide Inorganic materials 0.000 title claims abstract description 136
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical group [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 95
- 238000009413 insulation Methods 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims abstract description 120
- 239000002184 metal Substances 0.000 claims abstract description 120
- 239000010941 cobalt Substances 0.000 claims abstract description 19
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 19
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 19
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910021334 nickel silicide Inorganic materials 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims description 59
- 125000006850 spacer group Chemical group 0.000 claims description 59
- 239000004065 semiconductor Substances 0.000 claims description 50
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 21
- 239000010703 silicon Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 10
- 238000000151 deposition Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000003870 refractory metal Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 13
- 230000001939 inductive effect Effects 0.000 abstract description 4
- 230000000593 degrading effect Effects 0.000 abstract 1
- 238000005530 etching Methods 0.000 description 32
- 238000004519 manufacturing process Methods 0.000 description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 238000000137 annealing Methods 0.000 description 11
- 229910052581 Si3N4 Inorganic materials 0.000 description 9
- 239000002019 doping agent Substances 0.000 description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 235000012239 silicon dioxide Nutrition 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052732 germanium Inorganic materials 0.000 description 5
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 5
- 238000002513 implantation Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000002800 charge carrier Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000012010 growth Effects 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 206010010144 Completed suicide Diseases 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 229910021341 titanium silicide Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- -1 region 130 Chemical compound 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
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Abstract
Description
Claims (10)
- 第1のゲート電極構造(121、221)を含む第1のトランジスタ素子(120、220)を形成するステップであって、前記第1のゲート電極構造は第1の幅(122A、222A)を有する第1のサイドウォールスペーサ構造(122、260)を含むステップ、
第2のゲート電極構造(141、241)を含む第2のトランジスタ素子(140、240)を形成するステップであって、前記第2のゲート電極構造は、前記第1の幅(122A、222A)とは異なる第2の幅(142A、242A)を有する第2のサイドウォールスペーサ構造(142、270)を含むステップ、
前記第1のトランジスタ素子(120、220)内に第1の金属シリサイド(130、230)を形成するステップ、
前記第2のトランジスタ素子(140、240)内に第2の金属シリサイド(150、250)を形成するステップであって、前記第1の金属シリサイド(130、230)および前記第2の金属シリサイド(150、250)は、材料組成、厚み、または形成中に用いられる工程条件のうちの少なくとも1つにおいて異なるステップ、
前記第1のトランジスタ素子(120、220)上に第1のコンタクトライナ層(131、231)を形成するステップ、
前記第2のトランジスタ素子(140、240)上に第2のコンタクトライナ層(151、251)を形成するステップであって、前記第1のコンタクトライナ層(131、231)および前記第2のコンタクトライナ層(151、251)は、材料組成または内部応力のうちの少なくとも1つにおいて異なるステップを含む、方法。 - 前記第1のトランジスタ素子(120、220)および前記第2のトランジスタ素子(140、240)を形成するステップは、
それぞれ少なくとも1つの内側スペーサ素子(124、144)および1つの外側スペーサ素子(146)を含む、前記第1のゲート電極構造(121、241)および前記第2のゲート電極構造(141、241)を形成するステップ、
前記第1のゲート電極構造(121、221)の前記外側スペーサ素子(146)を選択的に除去するステップ、および
前記第2の金属シリサイド(150、250)を形成した後に、前記第2のサイドウォールスペーサ構造(141、241)の前記外側スペーサ素子(146)を除去するステップを含む、請求項1に記載の方法。 - 前記第1の金属シリサイド(130、230)を形成するステップは、コバルト層を堆積するステップ、および前記第2の金属シリサイドを形成する前に、シリコン(127)との化学反応を開始するステップを含み、前記第2の金属シリサイド(150、250)を形成するステップは、前記第1の金属シリサイド(130、230)を形成した後に、ニッケルシリサイドを形成するステップを含む、請求項1に記載の方法。
- 前記第1の金属シリサイド(130、230)および前記第2の金属シリサイド(150、250)を形成するステップは、前記第1の金属シリサイド(130、230)と前記第2の金属シリサイド(150、250)とに対して、異なる、耐火金属の層厚、熱処理温度、または熱処理持続時間のうちの少なくとも1つを選択するステップを含む、請求項1に記載の方法。
- 前記第1のコンタクトライナ層(131、231)および前記第2のコンタクトライナ層(151、251)を形成するステップは、前記第1のトランジスタ素子(120、220)および前記第2のトランジスタ素子(140、240)上に前記第1のコンタクトライナ(131、231)層を形成するステップ、前記第2のトランジスタ素子(140、240)上の前記第1のコンタクトライナ(131、231)層を選択的に除去するステップ、前記第1のトランジスタ素子(120、220)および前記第2のトランジスタ素子(140、240)上に前記第2のコンタクトライナ層(151、251)を形成するステップを含む、請求項1に記載の方法。
- 前記第1のトランジスタ素子(120、220)を露出させ、かつ前記第2のトランジスタ素子(140、240)を覆うようにハードマスク(107A)を形成するステップ、
前記第1の金属シリサイド(130、230)を形成するとともに、前記第1のコンタクトライナ層(131、231)を形成するステップ、
前記第2のトランジスタ素子(140、240)上の前記ハードマスク(107A)および前記第1のコンタクトライナ(131、231)層を選択的に除去するステップ、
前記第2の金属シリサイド(150、250)を形成するステップ、
前記第2のコンタクトライナ層(151、251)を堆積するステップ、および
前記第1のトランジスタ素子(120、220)上の前記第2のコンタクトライナ層(151、251)を選択的に除去するステップをさらに含む、請求項5に記載の方法。 - 前記第1のトランジスタ素子(220)および前記第2のトランジスタ素子(240)のうちの少なくとも一方のドレイン領域およびソース領域内に埋込化合物半導体領域(274)を形成するステップをさらに含む、請求項1に記載の方法。
- 半導体デバイス(100、200)であって、
第1のゲート電極構造(121、221)を含む第1のトランジスタ素子(120、220)であって、前記第1のゲート電極構造は第1の幅(122A、222A)を有する第1のスペーサ構造(122、222)を含む、第1のトランジスタ素子と、
第2のゲート電極構造(141、241)を含む第2のトランジスタ素子(140、240)であって、前記第2のゲート電極構造は、前記第1の幅(122A、222A)とは異なる第2の幅(142A、242A)を有する第2のスペーサ構造(142、242)を含む、第2のトランジスタ素子と、
前記第1のトランジスタ素子(120、220)内に形成され、第1の特性を有する第1の金属シリサイド(130、230)と、
前記第2のトランジスタ素子(140、240)内に形成され、前記第1の特性とは異なる第2の特性を有する第2の金属シリサイド(150、250)と、
第1の内部応力を有するとともに、前記第1のトランジスタ素子(120、220)上に形成される第1のコンタクトライナ層(131、231)と、
前記第2のトランジスタ素子(140、240)上に形成されるとともに、前記第1の内部応力とは異なる第2の内部応力を有する第2のコンタクトライナ層(151、251)とを備える、半導体デバイス。 - 前記第1のトランジスタ素子(120、220)はNチャネルトランジスタを表し、前記第2のトランジスタ素子(140、240)はPチャネルトランジスタを表す、請求項8に記載の半導体デバイス。
- 前記第1のトランジスタ素子(220)および前記第2のトランジスタ素子(240)のうちの一方のドレイン領域およびソース領域内に埋込半導体化合物(274)をさらに備える、請求項8に記載の半導体デバイス。
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US11/379,606 US7838359B2 (en) | 2005-06-30 | 2006-04-21 | Technique for forming contact insulation layers and silicide regions with different characteristics |
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