WO2006001249A1 - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
- Publication number
- WO2006001249A1 WO2006001249A1 PCT/JP2005/011260 JP2005011260W WO2006001249A1 WO 2006001249 A1 WO2006001249 A1 WO 2006001249A1 JP 2005011260 W JP2005011260 W JP 2005011260W WO 2006001249 A1 WO2006001249 A1 WO 2006001249A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- type
- gate electrode
- film
- well
- dielectric constant
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 33
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000010410 layer Substances 0.000 claims abstract description 109
- -1 arsenic ions Chemical class 0.000 claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 239000002344 surface layer Substances 0.000 claims abstract description 45
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 22
- 229920005591 polysilicon Polymers 0.000 claims abstract description 22
- 238000000059 patterning Methods 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims description 73
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 39
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 39
- 229910052796 boron Inorganic materials 0.000 claims description 22
- 229910052698 phosphorus Inorganic materials 0.000 claims description 10
- 239000011574 phosphorus Substances 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 9
- 239000007772 electrode material Substances 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 24
- 229910052710 silicon Inorganic materials 0.000 abstract description 24
- 239000010703 silicon Substances 0.000 abstract description 24
- 125000006850 spacer group Chemical group 0.000 abstract description 13
- 239000010408 film Substances 0.000 description 148
- 108091006146 Channels Proteins 0.000 description 27
- 208000011380 COVID-19–associated multisystem inflammatory syndrome in children Diseases 0.000 description 18
- 230000001133 acceleration Effects 0.000 description 14
- 238000002955 isolation Methods 0.000 description 10
- 108090000699 N-Type Calcium Channels Proteins 0.000 description 9
- 102000004129 N-Type Calcium Channels Human genes 0.000 description 9
- 229910052581 Si3N4 Inorganic materials 0.000 description 8
- 238000001459 lithography Methods 0.000 description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 8
- 108010075750 P-Type Calcium Channels Proteins 0.000 description 6
- 239000002019 doping agent Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- HAYXDMNJJFVXCI-UHFFFAOYSA-N arsenic(5+) Chemical compound [As+5] HAYXDMNJJFVXCI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007943 implant Substances 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 229910017107 AlOx Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
-
- 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
- H01L21/823807—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the channel structures, e.g. channel implants, halo or pocket implants, or channel materials
-
- 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
- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/10—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1025—Channel region of field-effect devices
- H01L29/1029—Channel region of field-effect devices of field-effect transistors
- H01L29/1033—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure
- H01L29/105—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure with vertical doping variation
-
- 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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66568—Lateral single gate silicon transistors
- H01L29/66575—Lateral single gate silicon transistors where the source and drain or source and drain extensions are self-aligned to the sides of the gate
- 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
-
- 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
- H01L29/511—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures
- H01L29/513—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures the variation being perpendicular to the channel plane
-
- 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
- H01L29/517—Insulating materials associated therewith the insulating material comprising a metallic compound, e.g. metal oxide, metal silicate
Definitions
- the present invention relates to a semiconductor device having a high dielectric constant gate insulating film and a method for manufacturing the same.
- the present invention relates to control of the threshold voltage of a MISFET.
- a thin film of a gate insulating film has been performed.
- silicon oxide film or silicon oxynitride film hereinafter referred to as “silicon oxide film”
- a silicon oxide film or the like is conventionally used as a gate insulating film.
- high dielectric constant gate insulating film a high dielectric constant film
- Patent Document 1 Japan 2002—313950
- the MISFET when a high dielectric gate insulating film is used as the gate insulating film of the MISFET, the MISFET is compared with the case where a silicon oxide film or the like is used. It has become a problem that there is a problem that the threshold voltage becomes higher.
- the metal contained in the high dielectric constant gate insulating film and the Si contained in the gate electrode react with each other.
- the metal contained in the high dielectric constant gate insulating film reacts with arsenic ions and boron ions implanted into the substrate for forming the source Z drain region.
- the present invention has been made in order to solve an enormous problem, and its purpose is to obtain a high dielectric constant gain.
- the threshold voltage of a semiconductor device having a gate insulating film is controlled with high accuracy.
- a semiconductor device is formed in a first conductivity type well formed in an upper layer of a substrate and a pole surface layer of a channel portion of the well, and has a first impurity concentration lower than that of the well.
- a semiconductor device is a complementary semiconductor device having an n-type circuit region and a p-type circuit region,
- a P-type low-concentration layer formed on the extreme surface layer of the channel portion of the P-type wall and having an impurity concentration lower than that of the p-type well;
- An n-type low-concentration layer formed on the extreme surface layer of the channel portion of the n-type well and having an impurity concentration lower than that of the n-type well;
- a high dielectric constant gate insulating film formed on the P-type and n-type low-concentration layers and having a relative dielectric constant higher than that of the silicon oxide film;
- An n-type source Z drain region formed in an upper layer of the P-type well with the P-type low concentration layer interposed therebetween;
- a p-type source Z drain region formed in an upper layer of the n-type well with the n-type low concentration layer interposed therebetween.
- a method of manufacturing a semiconductor device includes a step of implanting a first conductivity type impurity into a substrate to form a well
- a method for manufacturing a semiconductor device according to the present invention is a method for manufacturing a complementary semiconductor device having an n-type circuit region and a p-type circuit region,
- Injecting an n-type impurity into the pole surface layer of the channel portion of the P-type wall, Injecting a p-type impurity into the pole surface layer of the channel portion of the n-type tool, and implanting the n-type and p-type impurities A step of forming a high dielectric constant gate insulating film having a relative dielectric constant higher than that of the silicon oxide film on the substrate;
- a method for manufacturing a semiconductor device according to the present invention is a method for manufacturing a complementary semiconductor device having an n-type circuit region and a p-type circuit region,
- a heat treatment is performed to diffuse the arsenic ions and boron ions implanted into the pole surface layer, thereby forming a p-type low concentration layer in the pole surface layer of the p-type well channel portion, and the n-type well channel. Forming an n-type low concentration layer on the extreme surface layer of the portion;
- a step of forming an HfAlOx film on the substrate a step of forming a polysilicon film serving as a gate electrode on the HfAlOx film, and patterning the polysilicon film and the HfAlOx film Forming a gate electrode through the HfAlOx film on the p-type and n-type low-concentration layers, and implanting n-type impurities into the p-type wall using the gate electrode as a mask. Forming an n-type source Z-drain region in the type circuit region;
- the present invention provides a highly accurate threshold voltage of a semiconductor device having a high dielectric constant gate insulating film by forming a low-concentration layer having a low impurity concentration on the extreme surface layer of the channel portion of the full region. Can be controlled.
- FIG. 1 is a cross-sectional view for explaining a semiconductor device according to Example 1 of the present invention.
- FIG. 2 is a process sectional view for explaining the method for manufacturing the semiconductor device according to the first embodiment of the invention.
- FIG. 3 is a cross-sectional view for explaining a semiconductor device according to a second embodiment of the present invention.
- FIG. 4 is a process cross-sectional view for explaining the manufacturing method of the semiconductor device according to Embodiment 2 of the present invention (No. 1).
- FIG. 5 is a process cross-sectional view for explaining the manufacturing method of the semiconductor device according to the second embodiment of the present invention (part 2).
- FIG. 6 is a process cross-sectional view for explaining the manufacturing method of the semiconductor device according to Embodiment 2 of the present invention (No. 3).
- FIG. 7 is a diagram showing the relationship between the threshold voltage and gate length of an N-type channel MISFET.
- FIG. 8 is a diagram showing the relationship between the threshold voltage and gate length of a P-type channel MISFET.
- FIG. 1 is a cross-sectional view for explaining a semiconductor device according to Embodiment 1 of the present invention. Specifically, FIG. 1 is a cross-sectional view for explaining an n-type channel MISFET.
- the depth of the p-type low concentration layer 5 is several ⁇ from the surface of the silicon substrate 1! ⁇ About lOnm. At deeper positions, the low concentration layer is offset by the p-type wall 3.
- a silicon oxide film 6a is formed on the p-type low concentration layer 5.
- An HfAlOx film as a high dielectric constant gate insulating film 7a is formed on the silicon oxide film 6a.
- the H f AlOx film 7a has a relative dielectric constant higher than that of the silicon oxide film 6a.
- a gate electrode 8a having a polysilicon film force is formed on the HfAlOx film 7a.
- a side wall spacer 13 made of a silicon nitride film is formed on the side wall of the gate electrode 8a via a silicon oxide film 12.
- the silicon oxide film 12 is for preventing damage.
- an n-type extension region 11a is formed so as to sandwich the p-type low concentration layer 5a. Sarasako, this n- type extension region 1 n-type source Z drain region 15a connected to la is formed on the p-type wall 3!
- FIG. 2 is a process sectional view for explaining the method for manufacturing the semiconductor device according to the first embodiment. Specifically, FIG. 2 is a cross-sectional view for explaining a method of manufacturing an n-type channel MISFET.
- an element isolation structure 2 made of a silicon oxide film is formed in a p-type silicon substrate 1 using an STI (shallow trench isolation) method. Then, boron ions as p-type impurities are implanted into the active region isolated by the element isolation structure 2 at a dose of 1 ⁇ 10 13 atoms / cm 2 and an acceleration voltage of 130 keV, for example. Then, p-type wel 3 is formed by heat treatment.
- STI shallow trench isolation
- the polar surface layer of p-type wel 3 that is, the polar surface layer of the portion that becomes the channel region of p-type wel 3 (hereinafter referred to as “channel portion”).
- arsenic ions as the n-type impurity 4 are injected, for example, at a dose of 5 to 8 ⁇ 10 12 atoms / cm 2 and an acceleration voltage of 80 keV. After that, heat treatment is performed at a temperature of 850 ° C for about 30 seconds. As a result, arsenic ions 4 diffuse. As shown in FIG.
- a P-type low concentration layer 5 having an impurity concentration lower than that of the p-type well 3 is formed on the extreme surface layer of the p-type well 3.
- this p-type low concentration layer 5a makes it possible to control the threshold voltage of the MISFET having the high dielectric constant gate insulating film 7 with high accuracy.
- phosphorus ions as a gate dopant are implanted into the polysilicon film 8 at a dose of 1 ⁇ 10 16 atoms / cm 2 , for example. Thereafter, the gate dopant in the polysilicon film 8 is diffused by performing heat treatment. Further, a resist pattern 9 is formed on the polysilicon film 8 by lithography.
- the gate electrode 8a is formed on the p-type low concentration layer 5 of the silicon substrate 1 via the gate insulating films 6a and 7a. That is, the P-type low concentration layer 5 is located in the extreme surface layer of the channel region immediately below the gate insulating film 6a.
- an n-type impurity layer 11 is formed.
- heat treatment is performed.
- arsenic ions in the n-type impurity layer 11 are activated, and an n-type extension region 1 la is formed in the upper layer of the silicon substrate 1 as shown in FIG.
- a silicon oxide film 12 for preventing damage is formed on the entire surface of the substrate 1 with a thickness of 2 nm, for example.
- a silicon nitride film 13 is formed on the silicon oxide film 12 with a film thickness of, for example, 50 nm to 80 nm.
- the silicon nitride film 13 and the silicon oxide film 12 are anisotropically etched.
- the side spacer 13 covering the side wall of the gate electrode 8a is formed in a self-aligning manner.
- arsenic ions 14 as an n-type impurity are implanted, for example, at an acceleration voltage of 35 keV and a dose of 5 ⁇ 10 15 atoms / cm 2 .
- an n-type impurity layer 15 is formed.
- heat treatment is performed.
- the arsenic ions in the n-type impurity layer 15 are activated, and the n-type source Z drain region having a higher concentration than the n-type extension region 11 is formed in the upper layer of the silicon substrate 1 as shown in FIG. 15a is formed.
- Example 1 after forming the p-type well 3, arsenic ions 4 are implanted into the pole surface layer of the channel portion of the p-type well 3. Thereafter, heat treatment is performed. As a result, the p-type low concentration layer 5 having an impurity concentration lower than that of the P-type well 3 is formed on the extreme surface layer of the p-type wall. As a result, even when a metal-containing HfAlOx film is used as the gate insulating film, the threshold voltage of the MISFET can be controlled. Therefore, the threshold voltage of a semiconductor device having a high dielectric constant gate insulating film can be controlled with high accuracy.
- the n-type channel MISFET is described as “! /”.
- the present invention can also be applied to a p-type channel MISFET.
- phosphorus ions are injected at a dose of 1 ⁇ 10 13 atoms / cm 2 and an acceleration voltage of 300 keV, and heat treatment is performed to form an n-type Ul.
- n-type channel For example, boron ions as p-type impurities are implanted into the partial surface layer at a dose of 3 to 5 ⁇ 10 12 atoms / cm 2 and an acceleration voltage of 15 keV for heat treatment. As a result, a p-type low concentration layer is formed.
- the MISFET is formed by the same method as the PMIS region of Example 2 described later.
- the MISFET having a lightly doped drain (LDD) structure has been described!
- the present invention can also be applied to a MISFET having no LDD structure. (The same applies to Example 2 described later).
- an n-type impurity for forming an n-type source Z drain region is implanted into the silicon substrate 1 using the gate electrode 8a as a mask.
- the high dielectric gate insulating film 7 may be directly formed on the silicon substrate 1 without forming the silicon oxide film 6 (the same applies to Example 2 described later).
- phosphorus is used, for example, a dose amount: 5 to 8 ⁇ 10 12 atoms / cm 2 , an acceleration voltage: 35 keV (The same applies to Example 2 described later). In this case, a p-type low concentration layer having the same depth can be obtained.
- the P-type low concentration layer 27 and the n-type low concentration layer 30 have a lower impurity concentration than the surrounding p-type well 23 and n-type well 24! /.
- the threshold voltage of the n-type channel MISFET and the p-type channel MISFET can be controlled with high accuracy (described later).
- the depth of the p-type low-concentration layer 27 and the n-type low-concentration layer 30 is the number ⁇ ! About 10nm.
- the p-type low concentration layer 27 and the n-type low concentration layer 30 are offset by the p-type well 23 and the n-type well 24.
- a silicon oxynitride film 31a is formed on the p-type low-concentration layer 27 and the n-type low-concentration layer 30 .
- An HfAlOx film as a high dielectric constant gate insulating film 32a is formed on the silicon oxide film 31a.
- the HfAlOx film 32a has a relative dielectric constant higher than that of the silicon oxide film 3la.
- a gate electrode 33a having a polysilicon film force is formed on the HfAlOx film 32a.
- a side spacer 42 made of a silicon nitride film is formed on the side wall of the gate electrode 33a via a silicon oxide film 41.
- the silicon oxide film 41 functions to prevent damage.
- An n-type extension region 37 a is formed on the p-type well 23 below the sidewall spacer 42 in the NMIS region so as to sandwich the p-type low concentration layer 27. Furthermore, an n-type source Z-drain region 45a connected to the n-type extension region 37a is formed in the upper layer of the p-type wall 23.
- a p-type extension region 40a is formed on the upper layer of the n-type well 24 below the sidewall spacer 42 in the PMIS region so as to sandwich the n-type low concentration layer 30. Furthermore, a p-type source Z drain region 48a connected to the p-type extension region 40a is formed in the upper layer of the n-type well 24 !.
- FIGS. 4 to 6 are process cross-sectional views for explaining the semiconductor device manufacturing method according to the second embodiment. In more detail, it explains the manufacturing method of CMISFET which is a complementary semiconductor device. It is process sectional drawing for doing.
- an element isolation structure 22 is formed on a p-type silicon substrate 21 using the STI method. Then, boron ions as p-type impurities are implanted into the active region of the n-type channel MISFET region (hereinafter referred to as “NMIS region”) separated by the element isolation structure 22 at a dose of 1 ⁇ 10 13 atoms / cm 2. , Acceleration voltage: Implant at 130 keV. Thereafter, heat treatment is performed. As a result, p-type 23 is formed.
- phosphorus ions as n-type impurities are implanted into the active region of the p-type channel MISFET region (hereinafter referred to as “PMIS region”), for example, at a dose of 1 ⁇ 10 13 atoms / cm 2 and an acceleration voltage of 300 keV. To do. Thereafter, heat treatment is performed. As a result, n-type wel 24 is formed. Note that p-type impurities and n-type impurities can be diffused by a single heat treatment.
- a resist pattern 25 that covers the PMIS region is formed using a lithography technique.
- arsenic ions as the n-type impurity 26 are applied to the pole surface layer of the p-type well 23, that is, the pole surface layer of the channel portion of the p-type well 23, for example, at a dose of 5 to 8 X 10 12 atoms / cm 2.
- Accelerating voltage Inject at 80keV.
- the resist pattern 25 is removed.
- a resist pattern 28 that covers the NMIS region is formed using a lithography technique.
- boron ions as the p-type impurity 29 are applied to the polar surface layer of the n-type wel 24, that is, the polar surface layer of the channel portion of the n-type wel 24, for example, at a dose of 3 to 5 X 10 12 atoms / cm 2.
- Accelerating voltage Inject at 15 keV.
- the resist pattern 28 is removed. After that, heat treatment is performed at a temperature of 850 ° C for about 30 seconds.
- a p-type low concentration layer 27 is formed on the pole surface layer of the p-type well 23 and an n-type low concentration layer 30 is formed on the pole surface layer of the n-type wall 24 as shown in FIG.
- the PMIS region is masked with a resist pattern, and phosphorus ions as a gate dopant are implanted into the polysilicon film 33 in the NMIS region, for example, at a dose of 1 ⁇ 10 16 at omsZcm 2 .
- phosphorus ions as a gate dopant are implanted into the polysilicon film 33 in the NMIS region, for example, at a dose of 1 ⁇ 10 16 at omsZcm 2 .
- mask the NMIS region with a resist pattern and implant boron ions as a gate dopant into the polysilicon film 33 in the PMIS region, for example, at a dose of 3 ⁇ 10 15 atoms / cm 2 .
- the gate dopant implanted into the polysilicon film 33 is diffused.
- a resist pattern 35 that covers the PMIS region is formed by using a lithography technique.
- arsenic ions 36 as an n-type impurity for forming an n-type etching region are implanted, for example, at an acceleration voltage of 2 keV and a dose of 1 X 10 15 atoms / cm 2 To do.
- an n-type impurity layer 37 is formed on the silicon substrate 21 in the NMIS region.
- the resist pattern 35 is removed.
- a resist pattern 38 that covers the NMIS region is formed by using a lithography technique.
- Boron ions 39 as a p-type impurity for forming a p-type extension region using the gate electrode 33a of the PMIS region as a mask for example, an acceleration voltage: 0.2 keV, a dose amount: 1 X 10 15 atoms / cm 2 Inject with.
- the p-type impurity layer 40 is formed on the silicon substrate 21 in the PMIS region. Thereafter, heat treatment is performed. As a result, as shown in FIG.
- arsenic ions in the n-type impurity layer 37 in the NMIS region are activated to form an n- type extension region 37a, and boron ions in the p-type impurity layer 40 in the PMIS region are formed. As a result, the p-type extension region 40a is formed.
- a resist pattern 43 that covers the PMIS region is formed using a lithography technique. Then, using the sidewall spacer 42 and the gate electrode 33a in the NMIS region as a mask, V-type arsenic ions 44 as n-type impurities for forming the n-type source Z-drain region, for example, a quick voltage of 35 keV The dose is 5 ⁇ 10 15 atoms / cm 2 . As a result, an n-type impurity layer 45 is formed on the silicon substrate 21 in the NMIS region. Thereafter, the resist pattern 43 is removed.
- a resist pattern 46 that covers the NMIS region is formed using a lithography technique. Then, using the sidewall spacer 42 and the gate electrode 33a in the PMIS region as a mask, boron ions 47 as the P-type impurity in the p-type source Z-drain region, for example, acceleration voltage: 5 keV, dose amount: 3 ⁇ 10 Implant at 15 atoms / cm 2 . As a result, a p-type impurity layer 48 is formed on the silicon substrate 21 in the PMIS region. Thereafter, the resist pattern 46 is removed.
- the threshold voltage of the n-type channel MISFET and the p-type channel MISFET can be controlled even when a metal-containing HfAl Ox film is used as the gate insulating film. Therefore, high dielectric constant gate insulating film The threshold voltage of the complementary semiconductor device can be controlled with high accuracy.
- the threshold voltage of the NFET increases, and the threshold voltage is suppressed by performing the ion implantation. be able to.
- the arsenic ion dose of 5 to 8 X 10 12 atomsZcm 2 is used. It was preferred to inject by volume.
- the p-type well was formed by implanting boron ions at a dose of 1 ⁇ 10 13 atoms / cm 2 and an acceleration voltage of 130 keV.
- FIG. 8 is a diagram showing the relationship between the threshold voltage of the P-type channel MISFET and the gate length in the present invention.
- the semiconductor device and the manufacturing method thereof according to the present invention by forming the low concentration layer having the low impurity concentration of 1 in the extreme surface layer of the channel portion in the well region,
- the threshold voltage of a semiconductor device having a high dielectric constant gate insulating film can be controlled with high accuracy.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/572,730 US7683432B2 (en) | 2004-06-25 | 2005-06-20 | Semiconductor device having high-k gate dielectric layer and method for manufacturing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-187240 | 2004-06-25 | ||
JP2004187240A JP2006013092A (ja) | 2004-06-25 | 2004-06-25 | 半導体装置及びその製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006001249A1 true WO2006001249A1 (ja) | 2006-01-05 |
Family
ID=35779966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/011260 WO2006001249A1 (ja) | 2004-06-25 | 2005-06-20 | 半導体装置及びその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7683432B2 (ja) |
JP (1) | JP2006013092A (ja) |
KR (1) | KR100845380B1 (ja) |
CN (1) | CN1906768A (ja) |
TW (1) | TWI298897B (ja) |
WO (1) | WO2006001249A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015192257A1 (de) | 2014-06-16 | 2015-12-23 | Flumroc Ag | Verfahren zur herstellung eines wasserlöslichen prepolymeren und prepolymer hergestellt nach dem verfahren |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100745885B1 (ko) * | 2006-07-28 | 2007-08-02 | 주식회사 하이닉스반도체 | 반도체 소자 및 그 제조 방법 |
JP2009049300A (ja) * | 2007-08-22 | 2009-03-05 | Toshiba Corp | 半導体記憶装置の製造方法 |
CN101183666B (zh) * | 2007-12-13 | 2011-07-20 | 上海宏力半导体制造有限公司 | 一种用于嵌入式闪存自对准源漏极的侧墙制造方法 |
JP5464853B2 (ja) | 2008-12-29 | 2014-04-09 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法 |
CN114709176B (zh) * | 2022-05-31 | 2022-08-23 | 晶芯成(北京)科技有限公司 | 一种半导体结构及其制造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0228971A (ja) * | 1988-07-18 | 1990-01-31 | Mitsubishi Electric Corp | 半導体装置 |
JPH03276730A (ja) * | 1990-03-27 | 1991-12-06 | Matsushita Electron Corp | Mosトランジスタおよびその製造方法 |
JPH05183159A (ja) * | 1992-01-07 | 1993-07-23 | Fujitsu Ltd | 半導体装置及びその製造方法 |
JPH09191108A (ja) * | 1996-01-10 | 1997-07-22 | Nissan Motor Co Ltd | Mos型半導体装置 |
JP2000353756A (ja) * | 1999-06-14 | 2000-12-19 | Toshiba Corp | 半導体装置およびその製造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0471268A (ja) * | 1990-07-12 | 1992-03-05 | Sony Corp | 半導体メモリ装置 |
JP3276730B2 (ja) | 1993-08-24 | 2002-04-22 | 三洋電機株式会社 | アルカリ蓄電池の製造方法 |
JPH10125916A (ja) * | 1996-10-24 | 1998-05-15 | Matsushita Electric Ind Co Ltd | 半導体装置及びその製造方法 |
JP2002033477A (ja) | 2000-07-13 | 2002-01-31 | Nec Corp | 半導体装置およびその製造方法 |
JP3778810B2 (ja) | 2001-04-16 | 2006-05-24 | シャープ株式会社 | 半導体装置の製造方法 |
JP3805750B2 (ja) * | 2003-01-21 | 2006-08-09 | 株式会社東芝 | 相補型電界効果トランジスタ及びその製造方法 |
JP4574951B2 (ja) * | 2003-02-26 | 2010-11-04 | 株式会社東芝 | 半導体装置及びその製造方法 |
US6872613B1 (en) * | 2003-09-04 | 2005-03-29 | Advanced Micro Devices, Inc. | Method for integrating metals having different work functions to form CMOS gates having a high-k gate dielectric and related structure |
-
2004
- 2004-06-25 JP JP2004187240A patent/JP2006013092A/ja active Pending
-
2005
- 2005-06-20 CN CNA2005800015082A patent/CN1906768A/zh active Pending
- 2005-06-20 US US10/572,730 patent/US7683432B2/en active Active
- 2005-06-20 WO PCT/JP2005/011260 patent/WO2006001249A1/ja active Application Filing
- 2005-06-20 KR KR1020067007591A patent/KR100845380B1/ko active IP Right Grant
- 2005-06-23 TW TW094120991A patent/TWI298897B/zh not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0228971A (ja) * | 1988-07-18 | 1990-01-31 | Mitsubishi Electric Corp | 半導体装置 |
JPH03276730A (ja) * | 1990-03-27 | 1991-12-06 | Matsushita Electron Corp | Mosトランジスタおよびその製造方法 |
JPH05183159A (ja) * | 1992-01-07 | 1993-07-23 | Fujitsu Ltd | 半導体装置及びその製造方法 |
JPH09191108A (ja) * | 1996-01-10 | 1997-07-22 | Nissan Motor Co Ltd | Mos型半導体装置 |
JP2000353756A (ja) * | 1999-06-14 | 2000-12-19 | Toshiba Corp | 半導体装置およびその製造方法 |
Non-Patent Citations (1)
Title |
---|
ZHU W. ET AL.: "HfO2 and HfAIO for CMOS: Thermal Stability and Current Transport.", IEDM, 2001, pages 463 - 466, XP001075572 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015192257A1 (de) | 2014-06-16 | 2015-12-23 | Flumroc Ag | Verfahren zur herstellung eines wasserlöslichen prepolymeren und prepolymer hergestellt nach dem verfahren |
Also Published As
Publication number | Publication date |
---|---|
TW200610007A (en) | 2006-03-16 |
TWI298897B (en) | 2008-07-11 |
US20080230842A1 (en) | 2008-09-25 |
CN1906768A (zh) | 2007-01-31 |
KR100845380B1 (ko) | 2008-07-09 |
KR20060060059A (ko) | 2006-06-02 |
US7683432B2 (en) | 2010-03-23 |
JP2006013092A (ja) | 2006-01-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7214629B1 (en) | Strain-silicon CMOS with dual-stressed film | |
US7935993B2 (en) | Semiconductor device structure having enhanced performance FET device | |
JP4971593B2 (ja) | 半導体装置の製造方法 | |
JP2007243003A (ja) | 半導体装置の製造方法 | |
JP2008147597A (ja) | 半導体装置および半導体装置の製造方法 | |
JP5627165B2 (ja) | 半導体装置及び半導体装置の製造方法 | |
US7776695B2 (en) | Semiconductor device structure having low and high performance devices of same conductive type on same substrate | |
JP2005136351A (ja) | 半導体装置及びその製造方法 | |
WO2006001249A1 (ja) | 半導体装置及びその製造方法 | |
US20050012087A1 (en) | Self-aligned MOSFET having an oxide region below the channel | |
WO2008041301A1 (fr) | DISPOSITIF SEMI-CONDUCTEUR ET Son procÉDÉ de FABRICATION | |
US20080315317A1 (en) | Semiconductor system having complementary strained channels | |
JP5444176B2 (ja) | 半導体装置 | |
JP2006059980A (ja) | 半導体装置及びその製造方法 | |
US6864128B2 (en) | Manufacturing method for a semiconductor device | |
JPH09135029A (ja) | Mis型半導体装置及びその製造方法 | |
JP2008539592A (ja) | ブロッキング特性の異なるゲート絶縁膜を備えた半導体デバイス | |
JP2006049365A (ja) | 半導体装置 | |
JP2003249567A (ja) | 半導体装置 | |
JP2008124489A (ja) | 半導体装置の製造方法 | |
JP2004140059A (ja) | 絶縁ゲート電界効果トランジスタの製造方法 | |
JP2008258354A (ja) | 半導体装置及びその製造方法 | |
JP2953915B2 (ja) | 半導体集積回路装置及びその製造方法 | |
JP3240991B2 (ja) | 半導体装置及びその製造方法 | |
JP3128481B2 (ja) | Cmos半導体装置の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200580001508.2 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10572730 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020067007591 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067007591 Country of ref document: KR |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
122 | Ep: pct application non-entry in european phase |