TW589670B - Method of fabricating deep sub-micron CMOS source/drain with MDD and selective CVD silicide - Google Patents
Method of fabricating deep sub-micron CMOS source/drain with MDD and selective CVD silicide Download PDFInfo
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- TW589670B TW589670B TW091124110A TW91124110A TW589670B TW 589670 B TW589670 B TW 589670B TW 091124110 A TW091124110 A TW 091124110A TW 91124110 A TW91124110 A TW 91124110A TW 589670 B TW589670 B TW 589670B
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- Taiwan
- Prior art keywords
- implanting
- patent application
- source
- gate electrode
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- 229910021332 silicide Inorganic materials 0.000 title claims description 30
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title description 2
- 150000002500 ions Chemical class 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 238000000151 deposition Methods 0.000 claims abstract description 16
- 239000012212 insulator Substances 0.000 claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 31
- 238000005468 ion implantation Methods 0.000 claims description 24
- 239000007943 implant Substances 0.000 claims description 11
- 238000002513 implantation Methods 0.000 claims description 10
- 238000005470 impregnation Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 claims 4
- 230000000873 masking effect Effects 0.000 claims 4
- 230000002079 cooperative effect Effects 0.000 claims 3
- 101100328519 Caenorhabditis elegans cnt-2 gene Proteins 0.000 claims 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 238000002955 isolation Methods 0.000 description 6
- 238000007654 immersion Methods 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- -1 phosphorus ions Chemical class 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823814—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the source or drain structures, e.g. specific source or drain implants or silicided source or drain structures or raised source or drain structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/26506—Bombardment with radiation with high-energy radiation producing ion implantation in group IV semiconductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- 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
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28518—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table the conductive layers comprising silicides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/08—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind
- H01L27/085—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only
- H01L27/088—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
- H01L27/092—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate complementary MIS field-effect transistors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- High Energy & Nuclear Physics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
589670 A7 B7 五、發明説明(2 ) 內容 發明槪述 (請先閱讀背面之注意事項再填寫本頁) 本發明提供矽基底上形成MOS裝置的方法。在本發 明之一說明的實施例中,包括製備基底以包含具有第一裝 置主動區的第一導電率型的導電區;在第一裝置主動區上 形成閘電極結構,閘電極結構包含閘電極及絕緣側壁;佈 植導電率與該第一裝置主動區相反的離子植入該導電區的 曝露部份中,以在該閘極結構的相對立側上形成源極及汲 極區;及以選擇性CVD,在該源極及汲極區上沈積金屬 矽化物層。 本發明的較佳方法又在佈植步驟中包含使用電漿浸漬 離子佈植以佈植離子,其佈植能量約0.5 keV至2keV的 能量範圍,劑量範圍約1.0 X 1 014 c ιτΓ2至1.0 X 1 015 c m —2, 以在源極與汲極區中造成約1.0 X 1〇19 cm·3至1.0 X 1022 cm·3的範圍之表面離子濃度。 經濟部智慧財產局員工消費合作社印製 本發明的另一較佳實施例在閘極側壁形成之前使用低 能量離子佈植以執行佈植步驟。當使用低能量離子佈植時 ,以約0.5 keV至10 keV的能量範圍,劑量範圍約1.0 X 1014 cm·2至1.0 X 1015 cm·2,以在源極與汲極區中造成約 1.0 X 1019 cm·3至1.0 X 1 022 cm·3的範圍之表面離子濃度。 在發明的又另一實施例中,提供矽基底上形成CMOS 裝置的方法。在本實施例中,製備基底以包含具有第一裝 置主動區於其中之第一型導電區;及包含具有第二裝置主 動區於其中之第二型導電區。又包含下述步驟:在第一及 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 297公釐) -5- 589670 A7 B7_______ 五、發明説明(4 ) (請先閲讀背面之注意事項再填寫本頁) 在寬度上小於1 〇 〇 〇 n m。應瞭解,可使用任何適用的積體 電路連接線材料,包含耐熔金屬,最常用的是鋁。在此處 所述的實施例中,雖然在η型基底中形成p井,但是,結 構及製程也可用以在ρ型基底中形成η井以形成互補金屬 氧化物半導體(CMOS )裝置。 電漿浸漬離子佈植 現在參考圖1,結構10包含基底12,基底12可以是 單晶矽,在較佳實施例中,爲η型基底。執行現有技術的 製程以在η通道區中形成ρ井14,其爲第一裝置主動區 ,此處也稱爲第一型導電區。在基底12中的ρ通道區中 設置η井16作爲第二裝置主動區,此處也稱爲第二型導 .電區。「第一型」及「第二型」在此稱分別指「第一導電 率型」及「第二導電率型」、或是分別意指η型或Ρ型半 導體材料,其中,第一導電率型係與第二導電率型相反。 對基底執行適當的裝置隔離及臨界電壓調整,造成隔離區 2 1,接著執行閘極氧化、及閘電極形成,在閘極區1 7上 經濟部智慧財產局員工消費合作社印製 造成Ρ井閘電極1 8,及在閘極區1 9上造成η井閘電極20 〇 以CVD沈積諸如氧化矽或氮化矽等薄的絕緣器層’ 接著以電漿各.向異性蝕刻,如圖2所示,分別在閘電極 18、20上形成閘電極側壁絕緣器層22、24。 現在參考圖3,在ρ通道區上形成光阻層26,在本實 施例中係第二裝置主動區。執行電漿浸漬離子佈植以將本 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ297公釐) 589670 Α7 Β7 五、發明説明(5 ) ------^... I L— __ (請先閱讀背面之注意事項再填寫本頁) 實施例中稱爲第二型離子的η型離子植入第一裝置主動區 14的曝露部份中。以範圍約〇·5 keV至2 keV之佈植能量 的電漿浸漬離子佈植,佈植砷或磷離子,以摻雜p井14 的表面。佈植離子的劑量通常在約1·〇 X 1014 cm·2至1.0 χ 1015 cm·2。結果,形成η +源極區30及η+汲極區32。η +源 極/汲極區中離子的表面濃度在1 X 1〇19至1 χ 1〇22 cm·3之 間。在此處所述的發明之此及其它實施例中用以形成源極 /汲極區的製程會造成中度(或適度)摻雜的汲極(MDD )裝置。然後,剝除掩罩2 6。 經濟部智慧財產局員工消費合作社印製 接著,參考圖4,在作爲第一裝置主動區14之n通 道區上沈積光阻掩罩34。執行電漿浸漬離子佈植,以將ρ 型的si子植入第_^裝置主動區1 6的曝露部份。再度使用 佈植能量在約0.5 keV至2keV範圍之電漿浸漬離子佈植 ’佈植棚或BF2離子’以慘雑p通道區16的表面。佈植 離子的較佳劑量通常是在約1.0 x 1〇14 cm·2至1.0 X 1〇15 cm·2之範圍。結果,形成p +汲極區38及p +源極區40。p + 源極/汲極區的表面離子濃度通常在lxl0”至lxl0” cm·3 之範圍。剝除掩罩34。 現在參考圖5,在源極與汲極區上沈積金屬矽化物層 ’在η通道區中造成金屬矽化物層42及在ρ通道區中造 成金屬矽化物層44。以金屬矽化物選擇性CVD,將金屬 石夕化物僅沈積於基底的導電區,包含源極區、閘電極、及 汲極區。金屬矽化物的選擇性CVD未在諸如隔離區2 1及 鬧極側壁22、24等絕緣表面上沈積金屬矽化物。對於熟 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X29*7公釐) -8- 589670 Α7 Β7 五、發明説明(7 ) (讀先閲讀背面之注意事項再填寫本頁) 閘電極處的絕緣器側壁間隔器。因此,藉由使用習知的選 擇側壁厚度之技術,取得適當的側壁絕緣器厚度及適當的 閘極對源極/汲極重疊。舉例而言,參考Materials Chemistry and Physics, Vol. 46, ( 1996 ),ρ·132.139, N.W. Cheung 戶斤著之「Plasma Immersion Ion Implantation for Semiconductor Processing」一文。 習於此技藝者可以容易瞭解到,第一及第二裝置主動 區14、16被掩罩及佈植之次序是任意的且可以相反。舉 例而言,也可以如下述般執行方法:如圖4所示,首先掩 罩第一裝置主動區14,將第一型離子植入第二裝置主動 區1 6、剝除掩罩、接著,如圖3所示般,掩罩第二裝置 主動區16,以及將第二型離子植入第一裝置主動區14。 方法的其它步驟不改變。 低能量離子佈植 經濟部智慧財產局8工消費合作社印製 使用傳統的低能量離子佈植,摻雜離子橫向穿透很小 。如同圖7-1 1所示及參考其之說明所述般,修改較佳實 施例的製程順序,以在形成源極與汲極區之後形成側壁絕 緣器。 現在參考圖7,結構70包含基底72,基底72可爲單 晶矽。執行現有技藝的製程,以在結構70的η通道區中 形成Ρ井74 ;在結構70的ρ通道區中形成η井76。形成 適當的裝置隔離以形成隔離區77,及調整臨界電壓,接 著,形成_極氧化、及閘電極,造成具有Ρ井閘電極80 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ297公釐) -10- 589670 A7 B7 五、發明説明(1〇) 現在參考圖3,將導電率型與裝置主動區14相反的 離子植入基底的曝露部份,以在該閘極結構的相對立側上 形成源極及汲極區。在本實施例中,將η型離子植入p井 1 4中。執行電漿浸漬離子佈植以將本實施例中η型的離 子植入第一裝置主動區的曝露部份中。以佈植能量約0.50 keV至2keV範圍的電漿浸漬離子佈植,佈植砷或磷,以 摻雜P井14的表面。較佳的佈植離子劑量通常在約1 .〇 X 1014 cm_2至1.0 X 10]5 cm·2之範圍。結果,形成n +源極區 30及n +汲極區32。在n +源極/汲極區的表面離子濃度在 lxlO19 至 lxlO22 cm.3。 現在參考圖5,在源極和汲極區30、32上沈積金屬 矽化物層,在η通道區中造成金屬矽化物層42。以金屬 矽化物的CVD,沈積金屬矽化物至基底的導電區,包含 源極、閘極、及汲極區。 最後,如圖6所示,以CVD沈積氧化物層46。將電 極48連接至現在的nMOST源極30、電極50連接至 nMOST閘極18、電極52連接至nMOST汲極32。 參考圖7-1 1的左半部,提供使用低能量離子佈植取 代浸漬離子佈植,以在矽基底72上形成MOS裝置的方法 。參考圖7,製備具有第一裝置主動區74的基底,在本 說明中其具有p型導電率。在第一裝置主動區74上,形 成閘電極結構,閘結構包含電極80,但未包含絕緣側壁 。如同先前的實施例說明中所述般,形成基底閘極及側嬖 本纸張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) * - - m βι^ϋ 1^1 HI I anil ^ϋ· 1 (請先閱讀背面之注意事項再填寫本貢) 訂 經濟部智慧財產局員工消費合作社印製 -13- 589670 A7 B7 五、發明説明(12 ) 離子佈植法優於傳統的離子佈植法。 如此,揭示以MDD及選擇性CVD金屬矽化物用於製 造深次微米MOS及CMOS源極/汲極之方法。因此可知 ,在後述申請專利範圍中所界定的發明之範圍內,可以有 變化及修改。 圖式簡單說明 圖1 - 6係說明用於電漿浸漬離子佈植之本發明的方法 之步驟。 圖7-11係說明用於低能量離子佈植之本發明的方法 之步驟。 .主要元件對照表 10 結構 . 12 基底 14 p井 16 η井 17 閘極區 18 p井閘電極 19 聞極區 20 η井閘電極 21 閘極區 22 閘電極側壁絕緣器層 24 閘電極側壁絕緣器層 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X297公釐) ------,-I 衣丨| (請先閱讀背面之注意事項再填寫本頁) 訂 經濟部智慧財產局員工消費合作社印製 -15- 589670 A7 B7 五、發明説明(13) 經濟部智慧財產局員工消費合作社印製 26 光阻層 30 η +源極區 32 η +汲極區 34 光阻掩罩 38 Ρ +汲極區 40 Ρ +源極區 42 金屬矽化物層 44 金屬矽化物層 46 氧化物層 48 電極 50 電極 5 2 電極 54 電極 5 6 電極 58 電極 70 結構 72 基底 74 Ρ井 76 η井 77 隔離區 78 Ρ井閘極區 80 Ρ井閘電極 82 η井閘極區 84 η井閘電極 -----,_ — l· 曹! (請先閱讀背面之注意事項再填寫本頁)
、1T 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) -16- 589670 A7 B7 五、發明説明(14 ) 8 6 光阻層 9 0 η +源極區 (請先閱讀背面之注意事項再填寫本頁) 9 2 η +汲極區 94 光阻掩罩 9 8 ρ +汲極區 I 0 0 Ρ +源極區 102側壁絕緣器 104側壁絕緣器 106金屬矽化物層 108金屬矽化物層 II 0氧化物層 1 1 2電極 1 14電極 1 16電極 1 1 8電極 1 2 0電極 1 2 2 電極 經濟部智慧財產局員工消費合作社印製 124互補金屬氧化物半導體 本紙張尺度適用中國國家標準(CNS ) Α4規格(210X 297公釐) -17-
Claims (1)
- 589670 A8 B8 C8 D8 六、申請專利範圍 第91124110號專利申請案 中文申請專利範圍修正本 (請先閲讀背面之注意事項再填寫本頁) 民國93年4月 2日修正 1·一種在矽基底上形成MOS裝置之方法,包括: 製備基底,以包含具有第一裝置主動區之第一導 電率型的導電區; b) 在第一裝置主動區上,.形成閘電極結構,該閘電 極結構包含閘電極及絕緣側壁: c) 將導電率型與該第一裝置主動區相反的離子植入 該導電區的曝露部份,以在該閘結構的對立側上形成源極 與汲極區;及 d )以選擇性CVD,在該源極和汲極區上以及該閘電 極上,沈積金屬矽化物層; 其中,該佈植步驟c)包含使用電漿浸漬離子佈植以 佈植離子。 經濟部智慧財產局員工消費合作社印製 2.如申請專利範圍第1項之方法,其中,該佈植步驟 c)包含使用能量範圍約0.5 keV至2keV之電漿浸漬離子 佈植以佈植離子。 3·如申請專利範圍第1項之方法,其中,該佈植步驟 c)包含使用電漿浸漬離子佈植以佈植離子以及包含以約 1·0 X 1014cm·2 至 1.0 X 1〇15 cnT2 範圍之劑量佈植。 4.如申請專利範圍第1項之方法,其中,該佈植步驟 c)包含使用電漿浸漬離子佈植以佈植離子、以及包含佈 本紙張尺度適用中國國家揉準(CNS ) A4規格(210X297公釐) 589670 A8 B8 C8 D8 民國93年4月2曰修正 六、申請專利範圍 植以在該源極與汲極區中造成約1.0 X 1019cnT3至1.0 X 1 022 cnT3範圍之表面離子濃度。 (請先閲讀背面之注意事項再填寫本頁) 5·如申請專利範圍第1項之方法,在以CVD沈積金 屬矽化物層之該步驟(d)之後,又包含在以該步驟a) -d)取得的結構上沈積絕緣層之步驟以及金屬化該結構之 步驟-° 6·—種在矽基底上形成MOS裝置之方法,包括: a) 製備基底,以包含具有第一裝置主動區之第一導 電率型的導電區; b) 在第一裝置主動區上,形成閘電極; c) 將導電率型與該第一裝置主動區相反的離子植入 該導電區的曝露部份,以在該閘結構的對立側上形成源極 與汲極區; d) 形成相鄰於該閘電極之絕緣閘極側壁;及 e )以選擇性CVD,在該源極和汲極區上以及該閘電 極上,沈積金屬矽化物層; 其中,該佈植步驟c)包含使用低能量離子佈植以佈 植離子。 經濟部智慧財產局員工消費合作社印製 7.如申請專利範圍第6項之方法,其中,該佈植步驟 c )包含使用能量範圍約0.5 keV至1〇 keV之低能量離子 佈植以佈植離子。 8·如申請專利範圍第6項之方法,其中,該佈植步驟 c)包含使用低能量離子佈植以佈植離子以及包含以約 1·〇 X 1014cm·2 至 1·0 X 1015 cm·2 範圍之劑量佈植。 本紙張尺度適用中國國家梂準(CNS ) A4規格(210X297公釐) — 589670 B8 民國93年4月2日修正 C8 D8 六、申請專利範圍 (請先聞讀背面之注意事項再填寫本頁) 9·如申請專利範圍第6項之方法,其中,該佈植步驟 c)包含使用低能量離子佈植以佈植離子、以及包含佈植 以在該源極與汲極區中造成約1·〇 X 1019cnT3至1.0 X 1 022 cnT3範圍之表面離子濃度。 10.如申請專利範圍第6項之方法,在以CVD沈積金 屬砍化物層之該步驟e)之後,又包含在以該步驟a) )取得的結構上沈積絕緣層之步驟。 1 1·一種在砂基底上形成CMOS裝置之方法,包括: a) 製備基底,以包含其中具有第一裝置主動區之第 一導電率型的導電區,以及包含其中具有第二裝置主動區 之第二導電率型的導電區; b) 在第一及第二裝置主動區上,形成閘電極; c )在每一閘電極上,沈積及形成閘電極側壁絕緣器 層; d) 掩罩第一裝置主動區; e) 將第一型離子佈植至第二裝置主動區的曝露部份 中,以在第二裝置主動區中形成源極區和汲極區; f) 剝除掩罩; 經濟部智慧財產局員工消費合作社印製 g) 掩罩第二裝置主動區; h) 將第二型離子佈植至第一裝置主動區的曝露部份 中,以在第一裝置主動區中形成源極區和汲極區; i) 剝除掩罩;及 j) 在第一及第二裝置主動區中的閘電極上以及源極 和汲極區上,沈積金屬矽化物層; 本紙張尺度適用中國0家標準(CNS ) A4規格(210X297公釐) -3 - 589670 8 8 88 ABCD 民國93年4月2日修正 >、申請專利範圍 其中,該佈植步驟e)及h)包含使用電漿浸漬離子 佈植以佈植離子;及 (請先閲讀背面之注意事項再填寫本頁) 其中,該沈積金屬矽化物層的步驟j)包含以金屬矽 化物的選擇性CVD,沈積金屬矽化物層。 12.如申請專利範圍第11項之方法,其中,該佈植步 驟e〜)及h)包含以能量範圍約0·5 keV至2keV及劑量範 圍約 1·〇 X 1014cm·2 至 1.0 X 1015 cm·2,進行佈植。 13·如申請專利範圍第11項之方法,其中,該佈植步 驟e)及h)包含佈植以在該源極與汲極區中造成約1.〇 x 1019cnT3至1.0 X 1〇22 cnT3範圍之表面離子濃度。 14·如申請專利範圍第11項之方法,在該沈積金屬矽 化物層之步驟j )之後,又包含在以該步驟a ) -j )取得 的結構上沈積絕緣層之步驟以及金屬化該結構之步驟。 15·—種在矽基底上形成CMOS裝置之方法,包括: a) 製備基底,以包含其中具有第一裝置主動區之第 一導電率型的導電區,以及包含其中具有第二裝置主動區 之第二導電率型的導電區; b) 在第一及第二裝置主動區上,形成閘電極; 經濟部智慧財產局員工消費合作社印製 c) 掩罩第一裝置主動區; d) 將第一型離子佈植至第二裝置主動區的曝露部份 中,以在第二裝置主動區中形成源極區和汲極區; e )剝除掩罩; f) 掩罩第二裝置主動區; g) 將第二型離子佈植至第一裝置主動區的曝露部份 589670 民國93年4月2日修正 A8 B8 C8 D8 六、申請專利範圍 中,以在第一裝置主動區中形成源極區和汲極區; h )剝除掩罩; i )在每一閘電極上,沈積及形成閘電極側壁絕緣器 (請先閲讀背面之注意事項再填寫本頁) 層; j)在第一及第二裝置主動區中的閘電極上以及源極 和汲^極區的曝露表面上,沈積金屬矽化物層; 其中’該佈植步驟d)及g)包含使用低能量離子佈 植以佈植離子;及 其中,該沈積金屬矽化物層的步驟j)包含以金屬矽 化物的選擇性CVD,沈積金屬矽化物層。 16·如申請專利範圍第15項之方法,其中,該佈植步 驟d)及g)包含以能量範圍約0·5 keV至l〇keV及劑量 範圍約 1.0 X 1014cm·2 至 1·0 X 1015 cm·2,進行佈植。 17·如申請專利範圍第15項之方法,其中,該佈植步 驟d)及g)包含佈植以在該源極與汲極區中造成約1.0 X 1019 cm·2至1 ·0 X 1 022 cnT2範圍之表面離子濃度。 經濟部智慧財產局員工消費合作社印製 18.如申請專利範圍第15項之方法,在該沈積金屬矽 化物層之步驟j )之後,又包含在以該步驟a ) -j )取得 的結構上沈積絕緣層之步驟以及金屬化該結構之步驟。 本紙張尺度適用中國國家標準(CNS > A4規格(210X297公釐) -5 ·
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