JP5174083B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
- Publication number
- JP5174083B2 JP5174083B2 JP2010104059A JP2010104059A JP5174083B2 JP 5174083 B2 JP5174083 B2 JP 5174083B2 JP 2010104059 A JP2010104059 A JP 2010104059A JP 2010104059 A JP2010104059 A JP 2010104059A JP 5174083 B2 JP5174083 B2 JP 5174083B2
- Authority
- JP
- Japan
- Prior art keywords
- insulating film
- gate insulating
- semiconductor substrate
- region
- nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004065 semiconductor Substances 0.000 title claims description 166
- 238000004519 manufacturing process Methods 0.000 title claims description 45
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 278
- 229910052757 nitrogen Inorganic materials 0.000 claims description 139
- 239000000758 substrate Substances 0.000 claims description 128
- 238000000034 method Methods 0.000 claims description 55
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 32
- 238000009826 distribution Methods 0.000 claims description 32
- 229910052710 silicon Inorganic materials 0.000 claims description 24
- 239000010703 silicon Substances 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 22
- 229960001730 nitrous oxide Drugs 0.000 claims description 16
- 235000013842 nitrous oxide Nutrition 0.000 claims description 16
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 14
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 150000002500 ions Chemical class 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 8
- 229910052731 fluorine Inorganic materials 0.000 claims description 7
- 239000011737 fluorine Substances 0.000 claims description 7
- 238000000638 solvent extraction Methods 0.000 claims description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 2
- 239000010408 film Substances 0.000 description 415
- 230000015572 biosynthetic process Effects 0.000 description 45
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 25
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 22
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 19
- 238000004140 cleaning Methods 0.000 description 18
- 238000011282 treatment Methods 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 16
- 229910052796 boron Inorganic materials 0.000 description 14
- 238000009792 diffusion process Methods 0.000 description 14
- 238000002955 isolation Methods 0.000 description 13
- 238000005121 nitriding Methods 0.000 description 13
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 12
- 239000002019 doping agent Substances 0.000 description 12
- 239000000377 silicon dioxide Substances 0.000 description 12
- 235000012239 silicon dioxide Nutrition 0.000 description 12
- 230000015556 catabolic process Effects 0.000 description 10
- 125000004429 atom Chemical group 0.000 description 9
- 239000004020 conductor Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 238000002386 leaching Methods 0.000 description 8
- 238000009616 inductively coupled plasma Methods 0.000 description 6
- 238000005468 ion implantation Methods 0.000 description 5
- 150000002831 nitrogen free-radicals Chemical class 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 241000252506 Characiformes Species 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- -1 boron ions Chemical class 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 230000001698 pyrogenic effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 150000002829 nitrogen Chemical class 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 150000001638 boron Chemical class 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000000572 ellipsometry Methods 0.000 description 1
- 238000005530 etching 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
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28185—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation with a treatment, e.g. annealing, after the formation of the gate insulator and before the formation of the definitive gate conductor
-
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28202—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation in a nitrogen-containing ambient, e.g. nitride deposition, growth, oxynitridation, NH3 nitridation, N2O oxidation, thermal nitridation, RTN, plasma nitridation, RPN
-
- 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
- H01L21/823462—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate insulating layers, e.g. different gate insulating layer thicknesses, particular gate insulator materials or particular gate insulator implants
-
- 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
- H01L21/823857—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the gate insulating layers, e.g. different gate insulating layer thicknesses, particular gate insulator materials or particular gate insulator implants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/518—Insulating materials associated therewith the insulating material containing nitrogen, e.g. nitride, oxynitride, nitrogen-doped material
-
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/981—Utilizing varying dielectric thickness
Description
本発明の第1の実施形態について図面を参照しながら説明する。
以下、本発明の第2の実施形態について図面を参照しながら説明する。
以下、本発明の第3の実施形態について図面を参照しながら説明する。
12 素子分離領域
13A 第1のゲート絶縁膜
13B 第1のゲート絶縁膜
13C 第1のゲート絶縁膜
14 レジストパターン
15B 第2のゲート絶縁膜
15C 第2のゲート絶縁膜
16 ゲート電極
21 半導体基板
22 素子分離領域
23A 第1のゲート絶縁膜
23C 第1のゲート絶縁膜
24 レジストパターン
25C 第2のゲート絶縁膜
26 ゲート電極
31 半導体基板
32 素子分離領域
33A 第1のゲート絶縁膜
33B 第1のゲート絶縁膜
33C 第1のゲート絶縁膜
34 第1のレジストパターン
35B 第2のゲート絶縁膜
35C 第2のゲート絶縁膜
36B 第3のゲート絶縁膜
36C 第3のゲート絶縁膜
37 ゲート電極
44 第2のレジストパターン
51 第1の素子形成領域
52 第2の素子形成領域
53 第3の素子形成領域
Claims (12)
- 半導体基板を第1の領域及び第2の領域に区画する第1の工程と、
前記第1の領域上及び前記第2の領域上に、熱酸化膜からなる第1のゲート絶縁用膜を形成する第2の工程と、
前記第1のゲート絶縁用膜における前記第2の領域に含まれる部分を除去する第3の工程と、
前記第3の工程の後に、前記第1のゲート絶縁膜用膜を含む前記半導体基板の全面を窒素プラズマ及び酸素プラズマに暴露することにより、前記第2の領域上に膜厚が前記第1のゲート絶縁用膜よりも薄い第2のゲート絶縁膜を形成すると共に、前記第1のゲート絶縁膜を形成する第4の工程とを備え、
前記第4の工程の窒素プラズマ及び酸素プラズマによって、
前記第1のゲート絶縁膜には、前記窒素が前記半導体基板との界面に到達しないように表面部のみに導入され、
前記第1のゲート絶縁膜の窒素濃度分布は、前記第1のゲート絶縁膜における膜厚方向の表面部に第1のピークと前記半導体基板の界面に前記第1のピークよりも小さい第2のピークとを有し、
前記第2のゲート絶縁膜は、前記第2のゲート絶縁膜における膜厚方向の中央部にピークを持ち、且つ前記窒素が前記半導体基板との界面に到達するように導入され、
前記前記第2のゲート絶縁膜の膜厚は2.0nm以下であることを特徴とする半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記第2のゲート絶縁膜における前記半導体基板との界面部分の窒素濃度は、0.2atm%以上で且つ3atm%以下であることを特徴とする半導体装置の製造方法。 - 請求項1又は2に記載の半導体装置の製造方法において、
前記第1のゲート絶縁膜における窒素濃度のピーク値は、10atm%以上で且つ40atm%以下であることを特徴とする半導体装置の製造方法。 - 半導体基板を第1の領域及び第2の領域に区画する第1の工程と、
前記第1の領域上及び前記第2の領域上に、熱酸化膜からなる第1のゲート絶縁用膜を形成する第2の工程と、
前記第1のゲート絶縁用膜における前記第2の領域に含まれる部分を除去する第3の工程と、
前記第3の工程の後に、前記半導体基板における前記第2の領域上に、酸窒化性雰囲気で酸窒化処理を行うことにより、膜厚が前記第1のゲート絶縁用膜よりも薄い第2のゲート絶縁用膜を形成する第4の工程と、
前記第1のゲート絶縁用膜及び前記第2のゲート絶縁用膜を窒素プラズマに暴露して、前記第1のゲート絶縁用膜及び前記第2のゲート絶縁用膜に窒素原子を導入することにより、前記第1のゲート絶縁用膜から第1のゲート絶縁膜を形成すると共に、前記第2のゲート絶縁用膜から第2のゲート絶縁膜を形成する第5の工程とを備え、
前記第5の工程の窒素プラズマによって、
前記第1のゲート絶縁膜の窒素濃度分布は、前記第1のゲート絶縁膜における膜厚方向の表面部に第1のピークと前記半導体基板の界面に前記第1のピークよりも小さい第2のピークとを有し、
前記第2のゲート絶縁膜の窒素濃度分布は、前記第2のゲート絶縁膜における膜厚方向の中央部にピークを持ち、且つ窒素が前記半導体基板との界面に達するように導入され、
前記第2のゲート絶縁膜の膜厚は2.0nm以下であり、
前記第4の工程では、前記半導体基板に対して一酸化二窒素から生成された窒素プラズマ及び酸素プラズマを含む酸窒化性雰囲気で処理を行なうことにより、前記半導体基板上に酸窒化膜からなる前記第2のゲート絶縁用膜を形成することを特徴とする半導体装置の製造方法。 - 請求項4に記載の半導体装置の製造方法において、
前記第2のゲート絶縁膜における前記半導体基板との界面部分の窒素濃度は、0.2atm%以上で且つ3atm%以下であることを特徴とする半導体装置の製造方法。 - 請求項4又は5に記載の半導体装置の製造方法において、
前記第4の工程では、前記半導体基板に対して前記酸窒化性雰囲気で熱処理を行なうことにより、前記第1のゲート絶縁膜にも窒素が導入され、前記第1のゲート絶縁用膜が酸窒化膜に改質されることを特徴とする半導体装置の製造方法。 - 請求項4〜6のいずれか1項に記載の半導体装置の製造方法において、
前記窒素プラズマは、温度が室温から500℃までの高密度プラズマであることを特徴とする半導体装置の製造方法。 - 請求項4〜7のいずれか1項に記載の半導体装置の製造方法において、
前記第1のゲート絶縁膜における窒素濃度のピーク値は、10atm%以上で且つ40atm%以下であることを特徴とする半導体装置の製造方法。 - 請求項4〜8のいずれか1項に記載の半導体装置の製造方法において、
前記第5の工程において、前記窒素プラズマに酸素プラズマを加えることを特徴とする半導体装置の製造方法。 - 半導体基板を第1の領域、第2の領域及び第3の領域に区画する第1の工程と、
前記第1の領域上、前記第2の領域上及び前記第3の領域上に、熱酸化膜からなる第1のゲート絶縁用膜を形成する第2の工程と、
前記第1のゲート絶縁用膜における前記第2の領域及び前記第3の領域に含まれる部分を除去する第3の工程と、
前記第3の工程の後に、酸窒化雰囲気で酸窒化処理を行うことにより、前記半導体基板における前記第2の領域上に、膜厚が前記第1のゲート絶縁用膜よりも小さい第2のゲート絶縁用膜を形成し、且つ、前記第3の領域上に膜厚が前記第2のゲート絶縁用膜よりも小さい第3のゲート絶縁用膜を形成する第4の工程と、
前記第1のゲート絶縁用膜、前記第2のゲート絶縁用膜及び前記第3のゲート絶縁用膜を窒素プラズマに暴露して、前記第1のゲート絶縁用膜、前記第2のゲート絶縁用膜及び前記第3のゲート絶縁用膜に窒素原子を導入することにより、前記第1のゲート絶縁用膜から第1のゲート絶縁膜を形成し、前記第2のゲート絶縁用膜から第2のゲート絶縁膜を形成し、前記第3のゲート絶縁用膜から第3のゲート絶縁膜を形成する第5の工程とを備え、
前記第5の工程の窒素プラズマによって、
前記第1のゲート絶縁膜の窒素濃度分布は、前記第1のゲート絶縁膜における膜厚方向の表面部に第1のピークと前記半導体基板の界面に前記第1のピークよりも小さい第2のピークとを有し、
前記第3のゲート絶縁膜の窒素濃度分布は、前記第3のゲート絶縁膜における膜厚方向の中央部にピークを持ち、且つ窒素が前記半導体基板との界面に達するように導入され、
前記第3のゲート絶縁膜の膜厚は2.0nm以下であり、
前記第2の工程の後に、前記半導体基板の前記第2の領域に増速酸化効果を生じさせる不純物イオンを注入する第6の工程をさらに備えていることを特徴とする半導体装置の製造方法。 - 請求項10に記載の半導体装置の製造方法において、
前記第3のゲート絶縁膜における前記半導体基板との界面部分の窒素濃度は、0.2atm%以上で且つ3atm%以下であることを特徴とする半導体装置の製造方法。 - 請求項10又は11に記載の半導体装置の製造方法において、
前記不純物イオンはフッ素又はシリコンであり、前記フッ素又はシリコンを前記半導体基板の表面近傍に1×1014cm-2以上で且つ5×1015cm-2以下のドーズ量で注入することを特徴とする半導体装置の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010104059A JP5174083B2 (ja) | 2001-07-18 | 2010-04-28 | 半導体装置の製造方法 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001217571 | 2001-07-18 | ||
JP2001217571 | 2001-07-18 | ||
JP2010104059A JP5174083B2 (ja) | 2001-07-18 | 2010-04-28 | 半導体装置の製造方法 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005268440A Division JP2006066923A (ja) | 2001-07-18 | 2005-09-15 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010212716A JP2010212716A (ja) | 2010-09-24 |
JP5174083B2 true JP5174083B2 (ja) | 2013-04-03 |
Family
ID=19051861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010104059A Expired - Lifetime JP5174083B2 (ja) | 2001-07-18 | 2010-04-28 | 半導体装置の製造方法 |
Country Status (4)
Country | Link |
---|---|
US (3) | US6773999B2 (ja) |
JP (1) | JP5174083B2 (ja) |
CN (1) | CN1280920C (ja) |
TW (1) | TWI292593B (ja) |
Families Citing this family (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002343879A (ja) * | 2001-05-15 | 2002-11-29 | Nec Corp | 半導体装置及びその製造方法 |
US6773999B2 (en) * | 2001-07-18 | 2004-08-10 | Matsushita Electric Industrial Co., Ltd. | Method for treating thick and thin gate insulating film with nitrogen plasma |
JP2004023008A (ja) * | 2002-06-20 | 2004-01-22 | Renesas Technology Corp | 半導体集積回路装置およびその製造方法 |
KR20040010303A (ko) * | 2002-07-23 | 2004-01-31 | 가부시끼가이샤 도시바 | 반도체 장치 및 그 제조 방법, 불휘발성 반도체 기억 장치및 그 제조 방법, 및 불휘발성 반도체 기억 장치를구비하는 전자 장치 |
JP4190940B2 (ja) * | 2003-05-13 | 2008-12-03 | エルピーダメモリ株式会社 | 半導体装置の製造方法 |
EP1496548B1 (en) * | 2003-07-11 | 2008-01-02 | STMicroelectronics S.r.l. | Method for manufacturing differential isolation structures in a semiconductor electronic device and corresponding structure |
US6821833B1 (en) * | 2003-09-09 | 2004-11-23 | International Business Machines Corporation | Method for separately optimizing thin gate dielectric of PMOS and NMOS transistors within the same semiconductor chip and device manufactured thereby |
JP2005101403A (ja) * | 2003-09-26 | 2005-04-14 | Oki Electric Ind Co Ltd | 半導体装置のドライエッチング方法 |
JP4245466B2 (ja) * | 2003-12-04 | 2009-03-25 | Necエレクトロニクス株式会社 | ノイズ除去回路 |
KR100521440B1 (ko) * | 2003-12-27 | 2005-10-13 | 동부아남반도체 주식회사 | n채널형 모스 트랜지스터의 할로 영역 형성 방법 |
KR100553706B1 (ko) * | 2004-02-17 | 2006-02-24 | 삼성전자주식회사 | 비휘발성 기억 소자 및 그 제조 방법 |
JP4040602B2 (ja) * | 2004-05-14 | 2008-01-30 | Necエレクトロニクス株式会社 | 半導体装置 |
KR100521452B1 (ko) * | 2004-07-28 | 2005-10-12 | 동부아남반도체 주식회사 | 반도체 장치의 질화산화막 형성방법 |
JP4370223B2 (ja) | 2004-08-16 | 2009-11-25 | パナソニック株式会社 | 半導体装置の製造方法 |
JP4579637B2 (ja) * | 2004-10-01 | 2010-11-10 | 東京エレクトロン株式会社 | 半導体記憶装置及びその製造方法 |
US7795156B2 (en) * | 2004-11-05 | 2010-09-14 | Hitachi Kokusai Electric Inc. | Producing method of semiconductor device |
KR100611784B1 (ko) * | 2004-12-29 | 2006-08-10 | 주식회사 하이닉스반도체 | 다중 게이트절연막을 갖는 반도체장치 및 그의 제조 방법 |
US20060270066A1 (en) | 2005-04-25 | 2006-11-30 | Semiconductor Energy Laboratory Co., Ltd. | Organic transistor, manufacturing method of semiconductor device and organic transistor |
KR20080011215A (ko) * | 2005-04-29 | 2008-01-31 | 어드밴스드 마이크로 디바이시즈, 인코포레이티드 | 다른 차단 특성의 게이트 유전체를 갖는 반도체 디바이스 |
DE102005020058B4 (de) * | 2005-04-29 | 2011-07-07 | Globalfoundries Inc. | Herstellungsverfahren für ein Halbleiterbauelement mit Gatedielektrika mit unterschiedlichen Blockiereigenschaften |
JP2006332404A (ja) * | 2005-05-27 | 2006-12-07 | Seiko Epson Corp | 半導体装置の製造方法及び半導体装置 |
US7435651B2 (en) * | 2005-09-12 | 2008-10-14 | Texas Instruments Incorporated | Method to obtain uniform nitrogen profile in gate dielectrics |
US7932539B2 (en) * | 2005-11-29 | 2011-04-26 | The Hong Kong University Of Science And Technology | Enhancement-mode III-N devices, circuits, and methods |
US8044432B2 (en) * | 2005-11-29 | 2011-10-25 | The Hong Kong University Of Science And Technology | Low density drain HEMTs |
US7972915B2 (en) * | 2005-11-29 | 2011-07-05 | The Hong Kong University Of Science And Technology | Monolithic integration of enhancement- and depletion-mode AlGaN/GaN HFETs |
US7635655B2 (en) * | 2006-03-30 | 2009-12-22 | Tokyo Electron Limited | Method for replacing a nitrous oxide based oxidation process with a nitric oxide based oxidation process for substrate processing |
US20070228480A1 (en) * | 2006-04-03 | 2007-10-04 | Taiwan Semiconductor Manufacturing Co., Ltd. | CMOS device having PMOS and NMOS transistors with different gate structures |
US20080254642A1 (en) * | 2007-04-16 | 2008-10-16 | United Microelectronics Corp. | Method of fabricating gate dielectric layer |
KR100880230B1 (ko) * | 2007-05-28 | 2009-01-28 | 주식회사 동부하이텍 | 반도체 소자 및 그의 제조 방법 |
JP2008300779A (ja) * | 2007-06-04 | 2008-12-11 | Elpida Memory Inc | 半導体装置及びその製造方法 |
KR100877673B1 (ko) * | 2007-06-26 | 2009-01-08 | 주식회사 동부하이텍 | 반도체 소자 제조방법 |
US8502323B2 (en) * | 2007-08-03 | 2013-08-06 | The Hong Kong University Of Science And Technology | Reliable normally-off III-nitride active device structures, and related methods and systems |
JP2009044051A (ja) * | 2007-08-10 | 2009-02-26 | Panasonic Corp | 半導体装置及びその製造方法 |
US7928020B2 (en) * | 2007-09-27 | 2011-04-19 | Chartered Semiconductor Manufacturing Ltd. | Method of fabricating a nitrogenated silicon oxide layer and MOS device having same |
US8076699B2 (en) * | 2008-04-02 | 2011-12-13 | The Hong Kong Univ. Of Science And Technology | Integrated HEMT and lateral field-effect rectifier combinations, methods, and systems |
US7635648B2 (en) * | 2008-04-10 | 2009-12-22 | Applied Materials, Inc. | Methods for fabricating dual material gate in a semiconductor device |
JP2010027823A (ja) * | 2008-07-18 | 2010-02-04 | Nec Electronics Corp | 半導体装置の製造方法および半導体装置 |
US20100084687A1 (en) * | 2008-10-03 | 2010-04-08 | The Hong Kong University Of Science And Technology | Aluminum gallium nitride/gallium nitride high electron mobility transistors |
US8673720B2 (en) * | 2009-03-27 | 2014-03-18 | National Semiconductor Corporation | Structure and fabrication of field-effect transistor having nitrided gate dielectric layer with tailored vertical nitrogen concentration profile |
US20100242961A1 (en) * | 2009-03-31 | 2010-09-30 | Nellcor Puritan Bennett Llc | Systems and methods for preventing water damage in a breathing assistance system |
CN102263021B (zh) * | 2010-05-28 | 2013-06-19 | 中芯国际集成电路制造(上海)有限公司 | 一种低电压栅氧化层制备方法 |
US8470675B2 (en) * | 2010-10-20 | 2013-06-25 | Texas Instruments Incorporated | Thick gate oxide for LDMOS and DEMOS |
KR101858524B1 (ko) | 2011-05-26 | 2018-05-18 | 삼성전자주식회사 | 반도체 소자의 제조 방법 |
JP6083930B2 (ja) | 2012-01-18 | 2017-02-22 | キヤノン株式会社 | 光電変換装置および撮像システム、光電変換装置の製造方法 |
US8962433B2 (en) * | 2012-06-12 | 2015-02-24 | United Microelectronics Corp. | MOS transistor process |
JP6003363B2 (ja) * | 2012-08-03 | 2016-10-05 | 富士通セミコンダクター株式会社 | 半導体装置とその製造方法 |
US9412640B2 (en) | 2013-01-25 | 2016-08-09 | GlobalFoundries, Inc. | Semiconductor device including substrate contact and related method |
JP6206012B2 (ja) * | 2013-09-06 | 2017-10-04 | 住友電気工業株式会社 | 炭化珪素半導体装置 |
US9508588B2 (en) * | 2014-10-29 | 2016-11-29 | GlobalFoundries, Inc. | Methods for fabricating integrated circuits with isolation regions having uniform step heights |
KR102378471B1 (ko) * | 2017-09-18 | 2022-03-25 | 삼성전자주식회사 | 반도체 메모리 소자 및 그 제조 방법 |
CN114446879A (zh) * | 2020-11-02 | 2022-05-06 | 上海华力集成电路制造有限公司 | 整合不同厚度的栅介质层的制造方法 |
CN116364654A (zh) * | 2021-12-28 | 2023-06-30 | 长鑫存储技术有限公司 | 一种半导体结构及其形成方法 |
US11862461B2 (en) | 2021-12-28 | 2024-01-02 | Changxin Memory Technologies, Inc. | Method of forming oxide layer on a doped substrate using nitridation and oxidation process |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US19142A (en) * | 1858-01-19 | Corn-htjsker | ||
US185693A (en) * | 1876-12-26 | Improvement in blacking-bottles | ||
US130377A (en) * | 1872-08-13 | Improvement in lock-nuts | ||
US72177A (en) * | 1867-12-17 | Constantin deexlbe | ||
US52618A (en) * | 1866-02-13 | Improved lamp-wick adjuster | ||
JP3830541B2 (ja) | 1993-09-02 | 2006-10-04 | 株式会社ルネサステクノロジ | 半導体装置及びその製造方法 |
JPH08139315A (ja) * | 1994-11-09 | 1996-05-31 | Mitsubishi Electric Corp | Mosトランジスタ、半導体装置及びそれらの製造方法 |
US5834351A (en) * | 1995-08-25 | 1998-11-10 | Macronix International, Co. Ltd. | Nitridation process with peripheral region protection |
US6136654A (en) | 1996-06-07 | 2000-10-24 | Texas Instruments Incorporated | Method of forming thin silicon nitride or silicon oxynitride gate dielectrics |
US6040249A (en) * | 1996-08-12 | 2000-03-21 | Texas Instruments Incorporated | Method of improving diffusion barrier properties of gate oxides by applying ions or free radicals of nitrogen in low energy |
EP0844668A3 (en) | 1996-11-25 | 1999-02-03 | Matsushita Electronics Corporation | MOS structure of semiconductor device and method of manufacturing the same |
JP3681525B2 (ja) | 1996-11-25 | 2005-08-10 | 松下電器産業株式会社 | 半導体装置の製造方法 |
EP0847079A3 (en) | 1996-12-05 | 1999-11-03 | Texas Instruments Incorporated | Method of manufacturing an MIS electrode |
US5763922A (en) * | 1997-02-28 | 1998-06-09 | Intel Corporation | CMOS integrated circuit having PMOS and NMOS devices with different gate dielectric layers |
US6049249A (en) * | 1997-09-08 | 2000-04-11 | Hughes Electronics Corporation | TWT with mismatched section for controlled gain variation with frequency |
JP3967440B2 (ja) * | 1997-12-09 | 2007-08-29 | 株式会社ルネサステクノロジ | 半導体集積回路装置の製造方法 |
KR19990049409A (ko) | 1997-12-12 | 1999-07-05 | 윤종용 | 서로 다른 두께의 게이트 산화막 형성 방법 |
TW434735B (en) | 1998-02-20 | 2001-05-16 | United Microelectronics Corp | Tungsten etcher installed with a bottom electrode bias power supply |
US6087229A (en) * | 1998-03-09 | 2000-07-11 | Lsi Logic Corporation | Composite semiconductor gate dielectrics |
JPH11317458A (ja) | 1998-05-07 | 1999-11-16 | Hitachi Ltd | 半導体集積回路装置の製造方法および半導体集積回路装置 |
US6087236A (en) * | 1998-11-24 | 2000-07-11 | Intel Corporation | Integrated circuit with multiple gate dielectric structures |
JP2000216257A (ja) | 1999-01-20 | 2000-08-04 | Matsushita Electronics Industry Corp | 半導体装置およびその製造方法 |
JP3505493B2 (ja) * | 1999-09-16 | 2004-03-08 | 松下電器産業株式会社 | 半導体装置の製造方法 |
JP2002009169A (ja) * | 2000-06-20 | 2002-01-11 | Nec Corp | 半導体装置とその製造方法 |
US6833329B1 (en) * | 2000-06-22 | 2004-12-21 | Micron Technology, Inc. | Methods of forming oxide regions over semiconductor substrates |
US6432786B2 (en) * | 2000-08-10 | 2002-08-13 | National Science Council | Method of forming a gate oxide layer with an improved ability to resist the process damage |
US6933248B2 (en) * | 2000-10-19 | 2005-08-23 | Texas Instruments Incorporated | Method for transistor gate dielectric layer with uniform nitrogen concentration |
US6436845B1 (en) * | 2000-11-28 | 2002-08-20 | Lsi Logic Corporation | Silicon nitride and silicon dioxide gate insulator transistors and method of forming same in a hybrid integrated circuit |
JP2002170825A (ja) * | 2000-11-30 | 2002-06-14 | Nec Corp | 半導体装置及びmis型半導体装置並びにその製造方法 |
US6893979B2 (en) * | 2001-03-15 | 2005-05-17 | International Business Machines Corporation | Method for improved plasma nitridation of ultra thin gate dielectrics |
JP2002368122A (ja) * | 2001-06-12 | 2002-12-20 | Nec Corp | 半導体装置及びその製造方法 |
US6436771B1 (en) * | 2001-07-12 | 2002-08-20 | Taiwan Semiconductor Manufacturing Company | Method of forming a semiconductor device with multiple thickness gate dielectric layers |
US6773999B2 (en) * | 2001-07-18 | 2004-08-10 | Matsushita Electric Industrial Co., Ltd. | Method for treating thick and thin gate insulating film with nitrogen plasma |
-
2002
- 2002-07-16 US US10/195,367 patent/US6773999B2/en not_active Expired - Lifetime
- 2002-07-18 CN CNB021263140A patent/CN1280920C/zh not_active Expired - Fee Related
- 2002-07-18 TW TW091116020A patent/TWI292593B/zh not_active IP Right Cessation
-
2004
- 2004-06-22 US US10/872,403 patent/US7164178B2/en not_active Expired - Lifetime
-
2006
- 2006-11-16 US US11/600,062 patent/US20070063273A1/en not_active Abandoned
-
2010
- 2010-04-28 JP JP2010104059A patent/JP5174083B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2010212716A (ja) | 2010-09-24 |
US20030015763A1 (en) | 2003-01-23 |
CN1398005A (zh) | 2003-02-19 |
US20070063273A1 (en) | 2007-03-22 |
US6773999B2 (en) | 2004-08-10 |
TWI292593B (en) | 2008-01-11 |
CN1280920C (zh) | 2006-10-18 |
US7164178B2 (en) | 2007-01-16 |
US20040232516A1 (en) | 2004-11-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5174083B2 (ja) | 半導体装置の製造方法 | |
US7759260B2 (en) | Selective nitridation of gate oxides | |
JP5070702B2 (ja) | 半導体装置の製造方法及び製造装置 | |
US7541246B2 (en) | Method of manufacturing semiconductor device | |
JP4485754B2 (ja) | 半導体装置の製造方法 | |
US20070169696A1 (en) | Two-step post nitridation annealing for lower eot plasma nitrided gate dielectrics | |
JP2002368122A (ja) | 半導体装置及びその製造方法 | |
US7514376B2 (en) | Manufacture of semiconductor device having nitridized insulating film | |
JP2003133550A (ja) | 半導体装置及びその製造方法 | |
JP2002151684A (ja) | 半導体装置及びその製造方法 | |
JP2006066923A (ja) | 半導体装置 | |
JP2004207560A (ja) | 半導体装置およびその製造方法 | |
JP4639000B2 (ja) | Mis型半導体装置及びその製造方法 | |
WO2004097922A1 (ja) | 半導体装置の製造方法 | |
JP2000188291A (ja) | 半導体装置の製造方法 | |
US20020177327A1 (en) | Method for forming a gate dielectric layer by a single wafer process | |
JPH118317A (ja) | 半導体装置およびその製造方法 | |
JP5121142B2 (ja) | 半導体装置の製造方法 | |
CN117410235A (zh) | 一种基于多层应力记忆技术的cmos器件制造方法 | |
JP5119904B2 (ja) | 半導体装置の製造方法 | |
JP2005294549A (ja) | Mos型トランジスタ | |
JP2011023737A (ja) | Mis型半導体装置及びその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20120216 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120904 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20121019 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20121204 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20121227 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5174083 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |