WO2009093328A1 - 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
- WO2009093328A1 WO2009093328A1 PCT/JP2008/051071 JP2008051071W WO2009093328A1 WO 2009093328 A1 WO2009093328 A1 WO 2009093328A1 JP 2008051071 W JP2008051071 W JP 2008051071W WO 2009093328 A1 WO2009093328 A1 WO 2009093328A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- semiconductor layer
- content
- layer
- semiconductor device
- semiconductor
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims description 119
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims abstract description 79
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 45
- 229910052710 silicon Inorganic materials 0.000 claims description 45
- 239000010703 silicon Substances 0.000 claims description 45
- 239000000758 substrate Substances 0.000 claims description 42
- 239000012535 impurity Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 25
- 239000010410 layer Substances 0.000 description 153
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- 229910052814 silicon oxide Inorganic materials 0.000 description 24
- 229910052581 Si3N4 Inorganic materials 0.000 description 15
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 15
- 239000007789 gas Substances 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 9
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 229920002120 photoresistant polymer Polymers 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- 229910021332 silicide Inorganic materials 0.000 description 3
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011261 inert gas Substances 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
- 238000001039 wet etching Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/7842—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate
- H01L29/7848—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate the means being located in the source/drain region, e.g. SiGe source and drain
-
- 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 specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
- H01L29/045—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes by their particular orientation of crystalline planes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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 specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/66636—Lateral single gate silicon transistors with source or drain recessed by etching or first recessed by etching and then refilled
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table
- H01L29/161—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table including two or more of the elements provided for in group H01L29/16, e.g. alloys
- H01L29/165—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic Table including two or more of the elements provided for in group H01L29/16, e.g. alloys in different semiconductor regions, e.g. heterojunctions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/665—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using self aligned silicidation, i.e. salicide
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/66545—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using a dummy, i.e. replacement gate in a process wherein at least a part of the final gate is self aligned to the dummy gate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
- H01L29/6656—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using multiple spacer layers, e.g. multiple sidewall spacers
Definitions
- the present invention relates to a semiconductor device capable of high-speed operation and a manufacturing method thereof.
- the area of the channel region located immediately below the gate electrode is very small as compared with the previous transistors.
- the mobility of carriers (electrons and holes) traveling in the channel region is greatly affected by the stress applied to the channel region. Therefore, many attempts have been made to improve the operation speed of the semiconductor device by adjusting such stress.
- Non-Patent Document 1 a transistor whose channel is a region into which an impurity of a silicon substrate is introduced, the mobility of holes is smaller than the mobility of electrons. Therefore, improving the operation speed of the p-channel MOS transistor using holes as carriers is an important issue in designing a semiconductor integrated circuit device.
- the mobility of holes is improved by generating uniaxial compressive strain in the channel region. Further, it has been pointed out in principle that in such a p-channel MOS transistor, the mobility of holes increases as the compressive strain generated in the channel region increases (Non-Patent Document 1).
- the compressive strain can be increased by increasing the Ge content in the epitaxially grown SiGe layer.
- Non-patent Document 2 the critical film thickness at which dislocations are generated is called the critical film thickness.
- the thickness In order to epitaxially grow a SiGe layer without dislocations, it is desirable that the thickness be less than the critical film thickness.
- the Ge content is kept low in order to ensure normal operation.
- the carrier mobility is kept lower than the theoretically possible level.
- the first semiconductor device includes a silicon substrate, a gate insulating film formed on the silicon substrate, and a gate electrode formed on the gate insulating film. Grooves are formed on both sides of the gate electrode and on the surface of the silicon substrate. Further, the first semiconductor layer containing Ge formed so as to cover the bottom surface and the side surface of the groove, and is formed on the first semiconductor layer, and is lower than the Ge content of the first semiconductor layer. A second semiconductor layer containing Ge in a content ratio and a third semiconductor layer containing Ge formed on the second semiconductor layer are provided.
- the second semiconductor device is provided with a silicon substrate, a gate insulating film formed on the silicon substrate, and a gate electrode formed on the gate insulating film. Grooves are formed on both sides of the gate electrode and on the surface of the silicon substrate. Further, the first semiconductor layer including C formed so as to cover the bottom and side surfaces of the groove, and formed on the first semiconductor layer, and lower than the C content of the first semiconductor layer. A second semiconductor layer containing C in content and a third semiconductor layer containing C formed on the second semiconductor layer are provided.
- FIG. 1 is a cross-sectional view showing a p-channel MOS transistor according to a reference example.
- FIG. 2 is a diagram showing a process of epitaxial growth of the SiGe layer.
- FIG. 3A is a cross-sectional view illustrating the method of manufacturing the semiconductor device according to the first embodiment.
- FIG. 3B is a cross-sectional view illustrating the method for manufacturing the semiconductor device, following FIG. 3A.
- FIG. 3C is a cross-sectional view illustrating the method for manufacturing the semiconductor device, following FIG. 3B.
- FIG. 3D is a cross-sectional view illustrating the method for manufacturing the semiconductor device, following FIG. 3C.
- FIG. 3E is a cross-sectional view showing a method for manufacturing the semiconductor device, following FIG. 3D.
- FIG. 3A is a cross-sectional view illustrating the method of manufacturing the semiconductor device according to the first embodiment.
- FIG. 3B is a cross-sectional view illustrating the method for manufacturing the semiconductor device
- FIG. 3F is a cross-sectional view illustrating the manufacturing method of the semiconductor device, following FIG. 3E.
- FIG. 3G is a cross-sectional view illustrating the manufacturing method of the semiconductor device, following FIG. 3F.
- FIG. 3H is a cross-sectional view showing a method for manufacturing the semiconductor device, following FIG. 3G.
- FIG. 3I is a cross-sectional view illustrating the method for manufacturing the semiconductor device, following FIG. 3H.
- FIG. 3J is a cross-sectional view showing a method for manufacturing the semiconductor device, following FIG. 3I.
- FIG. 3K is a cross-sectional view showing a method for manufacturing the semiconductor device, following FIG. 3J.
- FIG. 3L is a cross-sectional view showing a method for manufacturing the semiconductor device, following FIG.
- FIG. 3M is a cross-sectional view showing a method for manufacturing the semiconductor device, following FIG. 3L.
- FIG. 4 is a graph showing the results of analysis performed by the inventors.
- FIG. 5 is a diagram showing a p-channel MOS transistor to be analyzed.
- Figure 6A is a graph showing the relationship between the B content and the strain epsilon 1.
- Figure 6B is a graph showing the relationship between the B content and the strain epsilon 2.
- FIG. 7 is a graph showing the relationship between Ge content and strain.
- FIG. 8 is a diagram showing a preferable distribution of the B content.
- FIG. 9A is a cross-sectional view illustrating the method of manufacturing the semiconductor device according to the second embodiment.
- FIG. 9A is a cross-sectional view illustrating the method of manufacturing the semiconductor device according to the second embodiment.
- FIG. 9B is a cross-sectional view illustrating the method for manufacturing the semiconductor device, following FIG. 9A.
- FIG. 9C is a cross-sectional view illustrating the manufacturing method of the semiconductor device, following FIG. 9B.
- FIG. 9D is a cross-sectional view illustrating the manufacturing method of the semiconductor device, following FIG. 9C.
- FIG. 9E is a cross-sectional view showing a method for manufacturing the semiconductor device, following FIG. 9D.
- FIG. 10 is a layout diagram showing an example of SoC.
- FIG. 11 is a block diagram illustrating an example of a mobile phone.
- a gate insulating film 52 and a gate electrode 53 are formed on a silicon substrate 51 having a surface Miller index of (001).
- a sidewall 54 is formed on the side of the gate electrode 53.
- a recess 56 is formed on the surface of the silicon substrate 51 outside the sidewall 54.
- the Miller index on the bottom surface of the recess 56 is (001), and the Miller index on the side surface on the channel region side is ⁇ 111>.
- an impurity diffusion layer 55 surrounding the recess 56 is formed.
- an inclined SiGe layer 57 and a fixed SiGe layer 58 are formed in order from the bottom.
- the Ge content of the inclined SiGe layer 57 increases from the lower surface toward the upper surface, and the Ge content of the fixed SiGe layer 58 matches the Ge content on the upper surface of the inclined SiGe layer 57.
- the graded SiGe layer 57 and the fixed SiGe layer 58 are epitaxially grown.
- the fixed SiGe layer 57 since the inclined SiGe layer 57 whose Ge content gradually increases is formed before the formation of the fixed SiGe layer 58 having a high Ge content, the fixed SiGe layer 57 is epitaxially grown even if the recess 56 is deepened. Dislocations hardly occur in the layer 58. Therefore, the recess 56 can be deepened and a tensile stress in the thickness direction can be strongly applied to the channel region. Further, since the fixed SiGe layer 58 is located on the side of the channel region, a lateral compressive stress can be applied to the channel region. And it is thought that compressive strain can be effectively generated in the channel region by these two stresses.
- the inventors of the present application conducted further intensive studies to investigate the cause.
- the initial layer of the SiGe layer 62 is formed not only on the bottom surface of the recess 63 but also on the side surface. It became clear that. That is, in the example shown in FIG. 1, even if the inclined SiGe layer 57 is intended to be formed only on the bottom of the recess 56, the inclined SiGe layer 57 is actually formed also on the side surface of the recess 56 on the channel side. It is. For this reason, the stress from the fixed SiGe layer 58 does not sufficiently act on the channel region, and the desired compressive strain does not occur in the channel region.
- the SiGe layer 62 when the initial layer of the SiGe layer 62 is formed, the SiGe layer 62 hardly grows in the lateral direction, and it is clear that the entire layer grows in the thickness direction. This is because the initial layer is formed by adsorption, but after that, it is affected by the etching action by HCl contained in the source gas for selective growth, and Si-- in the plane with Miller index ⁇ 111>. This is because it is difficult for SiH 4 and GeH 4 to be deposited on the initial layer due to the large activation energy of Cl bonds.
- the first embodiment mainly relates to a p-channel MOS transistor.
- 3A to 3M are cross-sectional views illustrating the method of manufacturing the semiconductor device according to the first embodiment in the order of steps.
- an STI Shallow Trench
- An element isolation insulating film 12 that defines the nMOS region 1 and the pMOS region 2 is formed by an isolation method.
- the nMOS region 1 is a region where an n-channel MOS transistor is to be formed
- the pMOS region 2 is a region where a p-channel MOS transistor is to be formed.
- a silicon oxide film having a thickness of 10 nm is formed at 900 ° C. by dry oxidation, and then, for example, 750 by CVD using SiH 2 Cl 2 and NH 3.
- a silicon nitride film having a thickness of about 112 nm is formed at a temperature of ° C. Thereafter, portions of the silicon oxide film and the silicon nitride film located on the region where the element isolation insulating film 12 is to be formed are removed by etching. Subsequently, the silicon substrate 11 is etched using the remaining portions of the silicon oxide film and the silicon nitride film as a hard mask, thereby forming a groove. Next, a silicon oxide film is formed in the trench and on the silicon nitride film by plasma CVD. Thereafter, the silicon oxide film thereon is removed by CMP until the silicon nitride film is exposed.
- the silicon nitride film is removed by wet processing using, for example, hot phosphoric acid at 150 ° C. Further, the silicon oxide film located under the silicon nitride film is removed by wet processing using hydrofluoric acid. In this way, the element isolation insulating film 12 is formed.
- a p-well 13p is formed on the surface of the silicon substrate 11 in the nMOS region 1, and an n-well is formed on the surface of the silicon substrate 11 in the pMOS region 2. 13n is formed.
- a silicon oxide film 35 having a thickness of about 1.5 nm is formed as a gate insulating film on the silicon substrate 11 by dry oxidation, for example.
- a polycrystalline silicon film having a thickness of about 100 nm is formed.
- an n-type impurity is introduced into the polycrystalline silicon film in the nMOS region 1, and a p-type impurity is introduced into the polycrystalline silicon film in the pMOS region 2.
- a p-type impurity for example, P (phosphorus) ions are implanted at a dose of 8 ⁇ 10 15 cm ⁇ 2 .
- B (boron) ions are implanted at a dose of 6 ⁇ 10 15 cm ⁇ 2 .
- RTA Rapid Thermal Treatment
- a silicon oxide film having a thickness of, for example, 30 nm is formed on the n-type polycrystalline silicon film 14n and the p-type polycrystalline silicon film 14p. As shown in FIG. 3B, this silicon oxide film, n-type polycrystalline silicon film is formed. The film 14n and the p-type polycrystalline silicon film 14p are patterned. As a result, a gate electrode on which the silicon oxide film 15 is provided is formed.
- a photoresist film covering the pMOS region 2 is formed, and the gate electrode in the nMOS region 1 is used as a mask.
- the acceleration energy is 3 keV
- the dose is 1 ⁇ 10 15 cm ⁇ 2
- As (arsenic) ions are formed.
- the acceleration energy is 0.5 keV
- the dose is 1 ⁇ 10 15 cm ⁇ 2
- B ions are implanted.
- the extension layer 16n is formed in the nMOS region 1
- the extension layer 16p is formed in the pMOS region 2.
- a p-type pocket layer (not shown) is also formed by introducing a p-type impurity into the nMOS region 1 using the photoresist film used for forming the extension layer 16n as it is.
- an n-type pocket layer (not shown) is also formed by introducing an n-type impurity into the pMOS region 2 using the photoresist film used in forming the extension layer 16p as it is.
- B ions are implanted with an acceleration energy of 10 keV and a dose of 1 ⁇ 10 13 cm ⁇ 2 .
- the acceleration energy and 10 keV to inject a dose as 2 ⁇ 10 13 cm -2.
- a silicon nitride film is formed on the entire surface and etched back to form a silicon nitride film 17 having a thickness of, for example, 20 nm on the side of the gate electrode, as shown in FIG. 3D.
- a silicon oxide film and a silicon nitride film are formed on the entire surface, and these are etched back to form a silicon oxide film 18 covering the side and upper sides of the gate electrode as shown in FIG.
- a silicon nitride film 19 is formed on the side of the film 18.
- the thickness of the silicon oxide film 18 is, for example, 5 nm or less, and the thickness of the silicon nitride film 19 is, for example, about 20 nm.
- a silicon oxide film 18 is interposed between the silicon nitride film 19 and the silicon substrate 11.
- a photoresist film covering the nMOS region 1 is formed, and this and the gate electrode in the pMOS region 2 are used as a mask, B energy is implanted with an acceleration energy of 10 keV and a dose of 3 ⁇ 10 13 cm ⁇ 2. .
- B energy is implanted with an acceleration energy of 10 keV and a dose of 3 ⁇ 10 13 cm ⁇ 2. .
- a p-type impurity diffusion layer 34 deeper than the extension layer 16p is formed in the pMOS region 2.
- a silicon oxide film 20 covering the nMOS region 1 is formed, and the silicon substrate 11 in the pMOS region 2 is etched using the silicon oxide film 20 as a hard mask, so that the p-type impurity diffusion layer 34 is formed.
- a recess 21 overlapping with a part is formed.
- the depth of the recess 21 is about 50 nm, for example.
- TMAH tetramethylammonium hydroxide
- the silicon substrate 11 is placed in a low-pressure CVD apparatus filled with hydrogen gas and inert gas (nitrogen gas, argon gas, helium gas, etc.) and maintained at a pressure of 5 Pa to 1330 Pa, and 400 ° C. in a hydrogen atmosphere.
- the silicon substrate 11 is heated to ⁇ 550 ° C.
- hydrogen baking is performed by holding for about 60 minutes at maximum under these conditions.
- a mixed gas of SiH 4 , HCl, and GeH 4 is supplied into the low-pressure CVD apparatus in addition to the hydrogen gas and / or the inert gas.
- SiH 4 is a Si source gas
- GeH 4 is a Ge source gas.
- HCl is a gas that improves the selectivity in the growth direction.
- the partial pressure of B 2 H 6 is in the range of 1 ⁇ 10 -5 Pa ⁇ 1 ⁇ 10 -3 Pa
- the partial pressure is 1 Pa ⁇ 10 Pa of HCl Fix within the range.
- the partial pressure of GeH 4 is 10 Pa.
- a Si 0.76 Ge 0.24 layer having a thickness of 5 nm is formed by epitaxial growth. That is, as shown in FIG. 3G, the SiGe layer 22 with the Ge content fixed at 24% is formed on the bottom surface of the recess 21 as the first semiconductor layer. At this time, as is apparent from the analysis result shown in FIG. 2, the SiGe layer 22 is also formed on the side surface of the recess 21.
- the growth temperature of the SiGe layer 22 is preferably 600 ° C. or lower.
- B 2 H 6 is also supplied into the low pressure CVD apparatus while maintaining the pressure and temperature.
- B 2 H 6 is a source gas for B (impurities).
- the partial pressure of GeH 4 is temporarily reduced to 0 Pa, and immediately thereafter, the partial pressure of GeH 4 is increased to a range of 0.1 Pa to 10 Pa in proportion to the elapsed time. .
- the SiGe layer 23 having a thickness of about 20 nm and a Ge content continuously changing from 0% to 25% by epitaxial growth is used as a second semiconductor layer. Formed on layer 22. At this time, as is apparent from the analysis result shown in FIG. 2, the SiGe layer 23 hardly grows in the lateral direction.
- the SiGe layer 24 having a thickness of about 30 nm and a Ge content fixed to 25% is formed by epitaxial growth.
- the semiconductor layer is formed on the SiGe layer 23.
- the lower surface of the SiGe layer 24 is positioned below the interface between the channel region and the gate insulating film 35, and the upper surface of the SiGe layer 24 is positioned above this interface. That is, the SiGe layer 24 is located on the side of the interface between the channel region and the gate insulating film 35.
- a silicon layer 25 having a thickness of about 5 nm to 10 nm is formed on the SiGe layer 24 by epitaxial growth.
- the silicon oxide film 20 is removed.
- the silicon oxide film 15 and part of the silicon oxide film 18 are also removed.
- a silicon oxide film having a thickness of about 20 nm is formed on the entire surface at 500 ° C. or lower, and this is etched back to form the sidewalls 26.
- a silicon oxide film 27 is formed on the gate electrode.
- a photoresist film covering the pMOS region 2 is formed, and this is used as a mask with the gate electrode and the side wall 26 in the nMOS region 1 as an acceleration energy of 6.0 keV and a dose amount of 8 ⁇ 10 15 cm ⁇ 2. , P ions are implanted.
- P ions are activated by performing extremely short time annealing (for example, spike annealing) with the maximum temperature being 950 ° C. or lower.
- extremely short time annealing for example, spike annealing
- the maximum temperature being 950 ° C. or lower.
- the sidewall 26 and the silicon oxide film 27 are removed, a Ni or Ni alloy film having a thickness of about 10 nm is formed on the entire surface, and RTA is performed at about 300 ° C., for example.
- RTA is performed at about 300 ° C., for example.
- the silicide layer 28 is formed on the gate electrode, the silicon layer 25, and the n-type impurity diffusion layer 28.
- the unreacted Ni or Ni alloy film is removed by persulfuric acid treatment. Thereafter, heat treatment is performed at 400 ° C. to 500 ° C. in order to further reduce the resistance of the silicide layer 28.
- an interlayer insulating film 31 is formed on the entire surface, and a contact hole reaching the silicide layer 28 is formed in the interlayer insulating film 31.
- a contact plug 32 is formed in the contact hole, and a wiring in contact with the contact plug 32 is formed on the interlayer insulating film 31.
- a further upper interlayer insulating film, wiring, and the like are formed to complete the semiconductor device.
- the SiGe layer 22 having a high Ge content is formed before the SiGe layer 23 having a low Ge content is formed, the side surface of the recess 21 in the SiGe layer 23 is formed. The side of the channel region is almost occupied by the SiGe layers 22 and 24. Since the Si content of the SiGe layers 22 and 24 is high, compressive strain can be effectively generated in the channel region of the p-channel MOS transistor.
- the B concentration in the SiGe layer 23, the SiGe layer 24, and the silicon layer 25 is preferably within a range in which the resistivity of the stacked body is about 1 m ⁇ ⁇ cm.
- the Ge content of the SiGe layers 22 and 24 is not particularly limited, and is, for example, 25% to 35%. Further, the Ge content on the upper surface of the SiGe layer 23 is not particularly limited, and is, for example, 25% to 35%. The Ge content of the SiGe layer 23 is not particularly limited, and is, for example, 20% or less. However, the Ge content of the SiGe layer 23 does not need to be inclined, but needs to be lower than the Ge content of the SiGe layer 22, and is lower than the Ge content of the SiGe layer 24. Preferably it is.
- the depth of the recess 21 and the thickness of each SiGe layer are not particularly limited, but the thickness of the SiGe layer 22 is preferably 30 nm or less, and more preferably 5 nm or less. Further, the upper surface of the SiGe layer 24 may be at the same height as the interface between the silicon substrate 11 and the gate insulating film 35.
- the distortion in the channel region and the vicinity thereof in the p-channel MOS transistor formed by the method according to the above-described embodiment was calculated (Example).
- the Ge content on the upper surface of the SiGe layer 23 and the Ge content of the SiGe layer 24 were 28%, and the Ge content on the lower surface of the SiGe layer 23 was 15%.
- the strain when the formation of the SiGe layer 22 was omitted was calculated (Comparative Example 1).
- there are also three types of strains when only the SiGe layer fixed at a Ge content of 15% (Comparative Example 2), 18% (Comparative Example 3) or 24% (Comparative Example 4) is formed in the recess. Calculated. The result is shown in FIG.
- a solid line in FIG. 4 indicates the distribution of strain of the transistor according to the above-described embodiment, and a broken line indicates the distribution of strain when the formation of the SiGe layer 22 is omitted. Also, the dotted line, the two-dot chain line, and the one-dot chain line indicate the strain distribution when only the SiGe layer having a Ge content fixed to 15%, 18%, and 24% is formed, respectively.
- the horizontal axis indicates the position in the horizontal direction with respect to the center of the channel region.
- the inventors of the present application have clarified that the distortion of the silicon substrate caused by the SiGe layer embedded in the recess is influenced not only by the Ge content but also by the B concentration. Specifically, it became clear that the higher the B concentration, the more relaxed the distortion.
- the higher the B concentration the more relaxed the distortion.
- the strains ⁇ 1 and ⁇ 2 are The tendency shown in FIG. 6A and FIG. 6B is shown.
- the strain ⁇ 1 is a strain in the thickness direction generated in the silicon substrate 101 at the interface with the side surface of the SiGe layer 104
- the strain ⁇ 2 is a lateral strain generated in the silicon substrate 101 at the interface with the bottom surface of the SiGe layer 104. It is.
- the higher the B concentration the smaller the strains ⁇ 1 and ⁇ 2 .
- the case does not contain B
- the B concentration is compared with the case of 4 ⁇ 10 20 cm -3, required to produce a strain epsilon 1 of the same size Ge The content is different by about 6%.
- the B concentration is not made uniform among the SiGe layer 23, the SiGe layer 24, and the silicon layer 25, but is adjusted according to required characteristics. For example, as shown in FIG. 8, in the SiGe layer 24 having a high Ge content, the B concentration is lowered to 1 ⁇ 10 20 cm ⁇ 3, and the B concentrations of the SiGe layers 23 and 25 sandwiching the B concentration are 5 ⁇ 10 20 cm 3. ⁇ 3 to 1 ⁇ 10 21 cm ⁇ 3 .
- Such adjustment can be easily performed by controlling the partial pressure of the B source gas (for example, B 2 H 6 ) supplied into the low pressure CVD apparatus.
- the second embodiment mainly relates to an n-channel MOS transistor.
- an n-channel MOS transistor it is necessary to generate a tensile strain in the lateral direction in the channel region.
- a SiC layer may be formed in the recess.
- the same effect as in the first embodiment can be obtained also in the n-channel MOS transistor by appropriately controlling the C content.
- 9A to 9E are cross-sectional views illustrating a method of manufacturing a semiconductor device according to the second embodiment in the order of steps.
- the processes up to the formation of the silicon oxide film 18 and the silicon nitride film 19 are performed (FIG. 3E).
- an n-type impurity diffusion layer 46 deeper than the extension layer 16 n is formed in the nMOS region 1.
- a silicon oxide film covering the pMOS region 2 is formed, and the silicon substrate 11 in the nMOS region 1 is etched using this as a hard mask, thereby forming a recess 41 overlapping with a part of the n-type impurity diffusion layer 46.
- the same method as that for the recess 21 is used.
- an SiC layer 42 having a thickness of 5 nm and a C content of 10% is formed on the bottom surface of the recess 41 as a first semiconductor layer by epitaxial growth.
- the SiC layer 42 is also formed on the side surface of the recess 41.
- an SiC layer 43 having a thickness of about 20 nm and a C content continuously changing from 0% to 2% is formed as a second semiconductor layer on the SiC layer 42 by epitaxial growth. To do. At this time, as apparent from the analysis result shown in FIG. 2, the SiC layer 43 hardly grows in the lateral direction.
- an SiC layer 44 having a thickness of about 30 nm and a C content of 10% is formed on the SiC layer 43 as a third semiconductor layer by epitaxial growth.
- the lower surface of SiC layer 44 is located below the interface between the channel region and gate insulating film 35, and the upper surface of SiC layer 44 is located above this interface. That is, the SiC layer 44 is located on the side of the interface between the channel region and the gate insulating film 35.
- a silicon layer 45 having a thickness of about 5 nm to 10 nm is formed on the SiC layer 44 by epitaxial growth.
- processing similar to the processing in the first embodiment for the p-channel MOS transistor is performed to complete the semiconductor device.
- the SiC layer 42 with a high C content is formed before the formation of the SiC layer 43 with a low C content, the side surface of the recess 41 in the SiC layer 43 is formed. The side of the channel region is almost occupied by the SiC layers 42 and 44. Since the SiC contents of SiC layers 42 and 44 are high, tensile strain can be effectively generated in the channel region of the n-channel MOS transistor.
- the method of the first embodiment may be adopted when forming the p-channel MOS transistor.
- the C content of the SiC layers 42 and 44 is not particularly limited, and is, for example, 1% to 2.5%.
- the C content on the upper surface of the SiC layer 43 is not particularly limited, for example, 1% to 2.5%, and the C content of the SiC layer 43 is not particularly limited, for example, 1% or less.
- the C content of the SiC layer 43 does not need to be inclined, but it needs to be lower than the C content of the SiC layer 42 and is lower than the C content of the SiC layer 44. Preferably it is.
- the depth of the recess 41 and the thickness of each SiC layer are not particularly limited, but the thickness of the SiC layer 42 is preferably 30 nm or less, and more preferably 5 nm or less. Further, the upper surface of SiC layer 44 may be at the same height as the interface between silicon substrate 11 and gate insulating film 35.
- the concentration of impurities in the SiC layer is not particularly limited, but in the SiC layer 44 having a high C content, the impurity concentration is lowered, and the impurity concentrations of the SiC layers 43 and 45 sandwiching the impurity concentration are 2 ⁇ 10 20 cm ⁇ 3. It is preferable to increase it to ⁇ 1 ⁇ 10 21 cm ⁇ 3 , particularly 5 ⁇ 10 20 cm -3 to 1 ⁇ 10 21 cm -3 .
- impurities include P (phosphorus) and As (arsenic).
- a film for applying a lateral tensile stress to the channel region is formed in the nMOS region 1, and the channel region is formed in the pMOS region 2.
- a film that applies a compressive stress in the lateral direction may be formed.
- An example of such a film is a silicon nitride film.
- FIG. 10 shows an example of SoC.
- SoC System-on-Chip
- FIG. 10 shows an example of SoC.
- the logic circuit unit 111 includes the MOS transistors of the first embodiment and the second embodiment.
- FIG. 11 shows an example of a mobile phone.
- the cellular phone 120 is provided with an antenna 121 that transmits and receives radio waves to and from the outside, a speaker 125 that outputs sound to the outside, and a microphone 126 that inputs sound from the outside.
- a transmission / reception processing unit 122 that performs conversion between input / output signals of the antenna 121 and input / output signals of the speaker 125 and the microphone 126, a control unit 123 that performs this control, a memory that stores programs executed by the control unit 123, and the like 124 is provided.
- a display unit 127 for displaying an operation state and the like, and an operation unit 128 such as a numeric keypad operated by the user are provided.
- the control unit 123 is composed of a high-frequency LSI.
- This high-frequency LSI includes the MOS transistors of the first and second embodiments.
- the first semiconductor layer having a higher Ge or C content than the second semiconductor layer is formed so as to cover the bottom and side surfaces of the groove, The distortion of the region directly under the gate insulating film caused by the semiconductor layer can be effectively increased.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Recrystallisation Techniques (AREA)
Abstract
Description
先ず、本発明に関連する参考例について説明する。本願発明者らは、pチャネルMOSトランジスタの形成に当たり、SiGe層中のGe含有率に変化をつけることにより、深いリセスを用いながら、転位の発生を抑制することができることを見出した。このような構造のpチャネルMOSトランジスタを図1に示す。
次に、第1の実施形態について、添付の図面を参照して具体的に説明する。但し、便宜上、半導体装置の構造については、その製造方法と共に説明する。第1の実施形態は、主にpチャネルMOSトランジスタに関する。図3A乃至図3Mは、第1の実施形態に係る半導体装置の製造方法を工程順に示す断面図である。
Isolation)法により、nMOS領域1及びpMOS領域2を画定する素子分離絶縁膜12を形成する。nMOS領域1は、nチャネルMOSトランジスタが形成される予定の領域であり、pMOS領域2は、pチャネルMOSトランジスタが形成される予定の領域である。素子分離絶縁膜12の形成に当たっては、先ず、ドライ酸化により、900℃にて厚さが10nmのシリコン酸化膜を形成し、次いで、例えばSiH2Cl2及びNH3を用いたCVD法により、750℃にて厚さが112nm程度のシリコン窒化膜を形成する。その後、シリコン酸化膜及びシリコン窒化膜の、素子分離絶縁膜12を形成する予定の領域上に位置する部分をエッチングにより除去する。続いて、シリコン酸化膜及びシリコン窒化膜の残存している部分をハードマスクとして用いてシリコン基板11のエッチングを行うことにより、溝を形成する。次いで、プラズマCVD法により、溝内及びシリコン窒化膜上にシリコン酸化膜を形成する。その後、CMP法により、シリコン窒化膜が露出するまで、その上のシリコン酸化膜を除去する。続いて、シリコン窒化膜を例えば150℃の熱燐酸を用いたウェット処理により除去する。更に、シリコン窒化膜の下に位置していたシリコン酸化膜を、フッ化水素酸を用いたウェット処理により除去する。このようにして素子分離絶縁膜12が形成される。
次に、第2の実施形態について、添付の図面を参照して具体的に説明する。但し、便宜上、半導体装置の構造については、その製造方法と共に説明する。第2の実施形態は、主にnチャネルMOSトランジスタに関する。nチャネルMOSトランジスタでは、チャネル領域に横方向の引張歪を生じさせる必要である。このためには、例えば、リセス内にSiC層を形成すればよい。そして、SiC層の形成に当たり、そのC含有率を適切に制御することにより、nチャネルMOSトランジスタにおいても、第1の実施形態と同様の効果が得られる。図9A乃至図9Eは、第2の実施形態に係る半導体装置の製造方法を工程順に示す断面図である。
Claims (20)
- シリコン基板と、
前記シリコン基板上に形成されたゲート絶縁膜と、
前記ゲート絶縁膜上に形成されたゲート電極と、
前記ゲート電極の両側であって、前記シリコン基板の表面に形成された溝と、
前記溝の底面及び側面を覆うように形成されたGeを含む第1の半導体層と、
前記第1の半導体層上に形成され、前記第1の半導体層のGe含有率より低い含有率で量のGeを含む第2の半導体層と、
前記第2の半導体層上に形成されたGeを含む第3の半導体層と、
を有することを特徴とする半導体装置。 - 前記第3の半導体層のGe含有率が、前記第2の半導体層のGe含有率よりも高いことを特徴とする請求項1に記載の半導体装置。
- 前記第1の半導体層のGe含有率が、25%乃至35%であることを特徴とする請求項2に記載の半導体装置。
- 前記第2の半導体層のGe含有率が、20%以下であることを特徴とする請求項2に記載の半導体装置。
- 前記第3の半導体層の表面は、前記シリコン基板と前記ゲート絶縁膜との界面と同一の高さ又は該界面よりも上方に位置することを特徴とする請求項2に記載の半導体装置。
- 前記第1乃至第3の半導体層が、SiGe層であることを特徴とする請求項3に記載の半導体装置。
- 前記第1の半導体層の膜厚が、30nm以下であることを特徴とする請求項6に記載の半導体装置。
- 前記第1乃至3の半導体層に不純物が導入されており、前記第1及び第3の半導体層の不純物濃度が、前記第2の半導体層の不純物濃度よりも高いことを特徴とする請求項1に記載の半導体装置。
- 前記第2の半導体層の不純物濃度が、5×1020cm-3~1×1021cm-3であることを特徴とする請求項8に記載の半導体装置。
- シリコン基板と、
前記シリコン基板上に形成されたゲート絶縁膜と、
前記ゲート絶縁膜上に形成されたゲート電極と、
前記ゲート電極の両側であって、前記シリコン基板の表面に形成された溝と、
前記溝の底面及び側面を覆うように形成されたCを含む第1の半導体層と、
前記第1の半導体層上に形成され、前記第1の半導体層のC含有率より低い含有率でCを含む第2の半導体層と、
前記第2の半導体層上に形成されたCを含む第3の半導体層と、
を有することを特徴とする半導体装置。 - 前記第3の半導体層のC含有率が、前記第2の半導体層のC含有率よりも高いことを特徴とする請求項10に記載の半導体装置。
- 前記第1の半導体層のC含有率が、1%乃至2.5%であることを特徴とする請求項11に記載の半導体装置。
- 前記第2の半導体層のC含有率が、1%以下であることを特徴とする請求項11に記載の半導体装置。
- 前記第3の半導体層の表面は、前記シリコン基板と前記ゲート絶縁膜との界面と同一の高さ又は該界面よりも上方に位置することを特徴とする請求項11に記載の半導体装置。
- 前記第1乃至第3の半導体層が、SiC層であることを特徴とする請求項12に記載の半導体装置。
- 前記第1の半導体層の膜厚が、30nm以下であることを特徴とする請求項15に記載の半導体装置。
- 前記第1乃至3の半導体層に不純物が導入されており、前記第1及び第3の半導体層の不純物濃度が、前記第2の半導体層の不純物濃度よりも高いことを特徴とする請求項10に記載の半導体装置。
- 前記第2の半導体層の不純物濃度が、5×1020cm-3~1×1021cm-3であることを特徴とする請求項17に記載の半導体装置。
- シリコン基板上にゲート絶縁膜を形成する工程と、
前記ゲート絶縁膜上にゲート電極を形成する工程と、
前記ゲート電極の両側であって、前記シリコン基板の表面に溝を形成する工程と、
前記溝の底面及び側面を覆うようにGeを含む第1の半導体層を形成する工程と、
前記第1の半導体層上に、前記第1の半導体層のGeの含有率より低い含有率でGeを含む第2の半導体層を形成する工程と
前記第2の半導体層上に、Geを含む第3の半導体層を順に形成する工程と、
を有することを特徴とする半導体装置の製造方法。 - シリコン基板上にゲート絶縁膜を形成する工程と、
前記ゲート絶縁膜上にゲート電極を形成する工程と、
前記ゲート電極の両側であって、前記シリコン基板の表面に溝を形成する工程と、
前記溝の底面及び側面を覆うようにCを含む第1の半導体層を形成する工程と、
前記第1の半導体層上に、前記第1の半導体層のCの含有率より低い含有率でCを含む第2の半導体層を形成する工程と
前記第2の半導体層上に、Cを含む第3の半導体層を順に形成する工程と、
を有することを特徴とする半導体装置の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009550406A JP5168287B2 (ja) | 2008-01-25 | 2008-01-25 | 半導体装置及びその製造方法 |
CN2008801254046A CN101925986B (zh) | 2008-01-25 | 2008-01-25 | 半导体器件及其制造方法 |
PCT/JP2008/051071 WO2009093328A1 (ja) | 2008-01-25 | 2008-01-25 | 半導体装置及びその製造方法 |
US12/826,002 US8338831B2 (en) | 2008-01-25 | 2010-06-29 | Semiconductor device and manufacturing method thereof |
US13/412,967 US8586438B2 (en) | 2008-01-25 | 2012-03-06 | Semiconductor device and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2008/051071 WO2009093328A1 (ja) | 2008-01-25 | 2008-01-25 | 半導体装置及びその製造方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/826,002 Continuation US8338831B2 (en) | 2008-01-25 | 2010-06-29 | Semiconductor device and manufacturing method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009093328A1 true WO2009093328A1 (ja) | 2009-07-30 |
Family
ID=40900846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/051071 WO2009093328A1 (ja) | 2008-01-25 | 2008-01-25 | 半導体装置及びその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (2) | US8338831B2 (ja) |
JP (1) | JP5168287B2 (ja) |
CN (1) | CN101925986B (ja) |
WO (1) | WO2009093328A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011040641A (ja) * | 2009-08-14 | 2011-02-24 | Renesas Electronics Corp | 半導体装置およびその製造方法 |
JP2011061042A (ja) * | 2009-09-10 | 2011-03-24 | Fujitsu Semiconductor Ltd | 半導体装置 |
US20160133748A1 (en) * | 2010-09-07 | 2016-05-12 | Samsung Electronics Co., Ltd. | Semiconductor devices including silicide regions and methods of fabricating the same |
KR101734665B1 (ko) * | 2015-03-30 | 2017-05-11 | 타이완 세미콘덕터 매뉴팩쳐링 컴퍼니 리미티드 | 반도체 장치 구조체 및 반도체 장치 구조체 형성 방법 |
KR101811796B1 (ko) * | 2010-10-06 | 2018-01-25 | 삼성전자주식회사 | 급경사 접합 프로파일을 갖는 소스/드레인 영역들을 구비하는 반도체 소자 및 그 제조방법 |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5381382B2 (ja) * | 2009-06-19 | 2014-01-08 | 富士通セミコンダクター株式会社 | 半導体装置及びその製造方法 |
US8021950B1 (en) * | 2010-10-26 | 2011-09-20 | International Business Machines Corporation | Semiconductor wafer processing method that allows device regions to be selectively annealed following back end of the line (BEOL) metal wiring layer formation |
CN102709183B (zh) * | 2011-03-28 | 2016-08-03 | 中芯国际集成电路制造(上海)有限公司 | 用于制造半导体器件的方法 |
US9537004B2 (en) * | 2011-05-24 | 2017-01-03 | Taiwan Semiconductor Manufacturing Company, Ltd. | Source/drain formation and structure |
CN102956445A (zh) * | 2011-08-24 | 2013-03-06 | 中芯国际集成电路制造(上海)有限公司 | 一种锗硅外延层生长方法 |
CN103000499B (zh) * | 2011-09-14 | 2015-12-16 | 中芯国际集成电路制造(上海)有限公司 | 一种锗硅硼外延层生长方法 |
US9263337B2 (en) * | 2011-11-02 | 2016-02-16 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device and method of manufacture |
KR20130074353A (ko) * | 2011-12-26 | 2013-07-04 | 삼성전자주식회사 | 트랜지스터를 포함하는 반도체 소자 |
US10535735B2 (en) * | 2012-06-29 | 2020-01-14 | Intel Corporation | Contact resistance reduced P-MOS transistors employing Ge-rich contact layer |
CN105789114B (zh) * | 2012-09-24 | 2019-05-03 | 中芯国际集成电路制造(上海)有限公司 | 半导体器件及其制造方法 |
CN103715090B (zh) * | 2012-09-29 | 2018-05-01 | 中芯国际集成电路制造(上海)有限公司 | 晶体管及其形成方法 |
US8853752B2 (en) * | 2012-10-26 | 2014-10-07 | Globalfoundries Inc. | Performance enhancement in transistors by providing a graded embedded strain-inducing semiconductor region with adapted angles with respect to the substrate surface |
KR102059526B1 (ko) * | 2012-11-22 | 2019-12-26 | 삼성전자주식회사 | 내장 스트레서를 갖는 반도체 소자 형성 방법 및 관련된 소자 |
US9831345B2 (en) | 2013-03-11 | 2017-11-28 | Taiwan Semiconductor Manufacturing Company, Ltd. | FinFET with rounded source/drain profile |
US9029226B2 (en) | 2013-03-13 | 2015-05-12 | Taiwan Semiconductor Manufacturing Company, Ltd. | Mechanisms for doping lightly-doped-drain (LDD) regions of finFET devices |
CN104143511B (zh) * | 2013-05-09 | 2016-12-28 | 中芯国际集成电路制造(上海)有限公司 | Pmos晶体管的制作方法 |
US9196542B2 (en) * | 2013-05-22 | 2015-11-24 | United Microelectronics Corp. | Method for manufacturing semiconductor devices |
US9293534B2 (en) | 2014-03-21 | 2016-03-22 | Taiwan Semiconductor Manufacturing Company, Ltd. | Formation of dislocations in source and drain regions of FinFET devices |
US9601619B2 (en) * | 2013-07-16 | 2017-03-21 | Taiwan Semiconductor Manufacturing Company, Ltd. | MOS devices with non-uniform P-type impurity profile |
US9401274B2 (en) * | 2013-08-09 | 2016-07-26 | Taiwan Semiconductor Manufacturing Company Limited | Methods and systems for dopant activation using microwave radiation |
US9012964B2 (en) * | 2013-08-09 | 2015-04-21 | Taiwan Semiconductor Manufacturing Company, Ltd. | Modulating germanium percentage in MOS devices |
US9337337B2 (en) * | 2013-08-16 | 2016-05-10 | Taiwan Semiconductor Manufacturing Company, Ltd. | MOS device having source and drain regions with embedded germanium-containing diffusion barrier |
US9064961B2 (en) * | 2013-09-18 | 2015-06-23 | Global Foundries Inc. | Integrated circuits including epitaxially grown strain-inducing fills doped with boron for improved robustness from delimination and methods for fabricating the same |
CN104576391B (zh) * | 2013-10-18 | 2018-02-06 | 中芯国际集成电路制造(上海)有限公司 | 一种pmos器件及其制备方法 |
CN103872118A (zh) * | 2014-02-21 | 2014-06-18 | 上海华力微电子有限公司 | 场效应晶体管及其制备方法 |
US9941388B2 (en) * | 2014-06-19 | 2018-04-10 | Globalfoundries Inc. | Method and structure for protecting gates during epitaxial growth |
CN105448991B (zh) * | 2014-09-01 | 2019-05-28 | 中芯国际集成电路制造(上海)有限公司 | 晶体管及其形成方法 |
KR102259328B1 (ko) | 2014-10-10 | 2021-06-02 | 삼성전자주식회사 | 반도체 장치 및 그 제조 방법 |
US9543438B2 (en) | 2014-10-15 | 2017-01-10 | Taiwan Semiconductor Manufacturing Company, Ltd. | Contact resistance reduction technique |
CN105702727B (zh) * | 2014-11-28 | 2020-06-16 | 联华电子股份有限公司 | 金属氧化物半导体装置与其形成方法 |
KR102192571B1 (ko) * | 2014-12-04 | 2020-12-17 | 삼성전자주식회사 | 버퍼 층을 갖는 반도체 소자 및 그 형성 방법 |
US9991384B2 (en) * | 2015-01-15 | 2018-06-05 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device including fin structures and manufacturing method thereof |
US9680014B2 (en) * | 2015-04-17 | 2017-06-13 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device including Fin structures and manufacturing method thereof |
FR3050315B1 (fr) * | 2016-04-19 | 2019-06-21 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Transistor a overlap des regions d'acces maitrise |
CN107369712A (zh) * | 2016-05-13 | 2017-11-21 | 上海新昇半导体科技有限公司 | 半导体结构及其形成方法 |
US9997631B2 (en) * | 2016-06-03 | 2018-06-12 | Taiwan Semiconductor Manufacturing Company | Methods for reducing contact resistance in semiconductors manufacturing process |
CN109817713B (zh) * | 2017-11-22 | 2022-04-15 | 中芯国际集成电路制造(上海)有限公司 | 半导体器件及其形成方法 |
US20220271162A1 (en) * | 2021-02-19 | 2022-08-25 | Qualcomm Incorporated | P-type field effect transistor (pfet) on a silicon germanium (ge) buffer layer to increase ge in the pfet source and drain to increase compression of the pfet channel and method of fabrication |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005033137A (ja) * | 2003-07-11 | 2005-02-03 | Toshiba Corp | 半導体装置およびその製造方法 |
JP2007294780A (ja) * | 2006-04-27 | 2007-11-08 | Sony Corp | 半導体装置の製造方法および半導体装置 |
JP2007537601A (ja) * | 2004-05-14 | 2007-12-20 | アプライド マテリアルズ インコーポレイテッド | 選択的堆積プロセスを使用したmosfetデバイスの作製方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6921913B2 (en) * | 2003-03-04 | 2005-07-26 | Taiwan Semiconductor Manufacturing Co., Ltd. | Strained-channel transistor structure with lattice-mismatched zone |
US7105393B2 (en) * | 2004-01-30 | 2006-09-12 | Taiwan Semiconductor Manufacturing Co., Ltd. | Strained silicon layer fabrication with reduced dislocation defect density |
JP4369359B2 (ja) * | 2004-12-28 | 2009-11-18 | 富士通マイクロエレクトロニクス株式会社 | 半導体装置 |
JP4369379B2 (ja) * | 2005-02-18 | 2009-11-18 | 富士通マイクロエレクトロニクス株式会社 | 半導体装置 |
JP4515305B2 (ja) * | 2005-03-29 | 2010-07-28 | 富士通セミコンダクター株式会社 | pチャネルMOSトランジスタおよびその製造方法、半導体集積回路装置の製造方法 |
JP4630728B2 (ja) | 2005-05-26 | 2011-02-09 | 株式会社東芝 | 半導体装置及びその製造方法 |
US7579617B2 (en) * | 2005-06-22 | 2009-08-25 | Fujitsu Microelectronics Limited | Semiconductor device and production method thereof |
JP4345774B2 (ja) * | 2006-04-26 | 2009-10-14 | ソニー株式会社 | 半導体装置の製造方法 |
JP5076388B2 (ja) * | 2006-07-28 | 2012-11-21 | 富士通セミコンダクター株式会社 | 半導体装置及びその製造方法 |
US7750338B2 (en) * | 2006-12-05 | 2010-07-06 | Taiwan Semiconductor Manufacturing Company, Ltd. | Dual-SiGe epitaxy for MOS devices |
JP2009043916A (ja) * | 2007-08-08 | 2009-02-26 | Toshiba Corp | 半導体装置及びその製造方法 |
-
2008
- 2008-01-25 JP JP2009550406A patent/JP5168287B2/ja not_active Expired - Fee Related
- 2008-01-25 WO PCT/JP2008/051071 patent/WO2009093328A1/ja active Application Filing
- 2008-01-25 CN CN2008801254046A patent/CN101925986B/zh not_active Expired - Fee Related
-
2010
- 2010-06-29 US US12/826,002 patent/US8338831B2/en active Active
-
2012
- 2012-03-06 US US13/412,967 patent/US8586438B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005033137A (ja) * | 2003-07-11 | 2005-02-03 | Toshiba Corp | 半導体装置およびその製造方法 |
JP2007537601A (ja) * | 2004-05-14 | 2007-12-20 | アプライド マテリアルズ インコーポレイテッド | 選択的堆積プロセスを使用したmosfetデバイスの作製方法 |
JP2007294780A (ja) * | 2006-04-27 | 2007-11-08 | Sony Corp | 半導体装置の製造方法および半導体装置 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011040641A (ja) * | 2009-08-14 | 2011-02-24 | Renesas Electronics Corp | 半導体装置およびその製造方法 |
JP2011061042A (ja) * | 2009-09-10 | 2011-03-24 | Fujitsu Semiconductor Ltd | 半導体装置 |
US8563382B2 (en) | 2009-09-10 | 2013-10-22 | Fujitsu Semiconductor Limited | Semiconductor device |
US20160133748A1 (en) * | 2010-09-07 | 2016-05-12 | Samsung Electronics Co., Ltd. | Semiconductor devices including silicide regions and methods of fabricating the same |
US10170622B2 (en) | 2010-09-07 | 2019-01-01 | Samsung Electronics Co., Ltd. | Semiconductor device including MOS transistor having silicided source/drain region and method of fabricating the same |
US10263109B2 (en) * | 2010-09-07 | 2019-04-16 | Samsung Electronics Co., Ltd. | Semiconductor devices including silicide regions and methods of fabricating the same |
US11004976B2 (en) | 2010-09-07 | 2021-05-11 | Samsung Electronics Co., Ltd. | Semiconductor device including MOS transistor having silicided source/drain region and method of fabricating the same |
KR101811796B1 (ko) * | 2010-10-06 | 2018-01-25 | 삼성전자주식회사 | 급경사 접합 프로파일을 갖는 소스/드레인 영역들을 구비하는 반도체 소자 및 그 제조방법 |
KR101734665B1 (ko) * | 2015-03-30 | 2017-05-11 | 타이완 세미콘덕터 매뉴팩쳐링 컴퍼니 리미티드 | 반도체 장치 구조체 및 반도체 장치 구조체 형성 방법 |
US10008568B2 (en) | 2015-03-30 | 2018-06-26 | Taiwan Semiconductor Manufacturing Co., Ltd. | Structure and formation method of semiconductor device structure |
Also Published As
Publication number | Publication date |
---|---|
CN101925986B (zh) | 2012-09-05 |
US8586438B2 (en) | 2013-11-19 |
US8338831B2 (en) | 2012-12-25 |
CN101925986A (zh) | 2010-12-22 |
JPWO2009093328A1 (ja) | 2011-05-26 |
US20120171829A1 (en) | 2012-07-05 |
JP5168287B2 (ja) | 2013-03-21 |
US20100301350A1 (en) | 2010-12-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5168287B2 (ja) | 半導体装置及びその製造方法 | |
US8450775B2 (en) | Method to control source/drain stressor profiles for stress engineering | |
US8114727B2 (en) | Disposable spacer integration with stress memorization technique and silicon-germanium | |
US7902008B2 (en) | Methods for fabricating a stressed MOS device | |
JP5091403B2 (ja) | 半導体装置およびその製造方法 | |
JP4847152B2 (ja) | 半導体装置とその製造方法 | |
US7592214B2 (en) | Method of manufacturing a semiconductor device including epitaxially growing semiconductor epitaxial layers on a surface of semiconductor substrate | |
US20160254259A1 (en) | Semiconductor Device and Method of Manufacturing the Same | |
US20060234455A1 (en) | Structures and methods for forming a locally strained transistor | |
JP5559639B2 (ja) | 半導体装置およびその製造方法 | |
US20060292783A1 (en) | CMOS transistor and method of manufacturing the same | |
US20050156274A1 (en) | Strained channel transistor and methods of manufacture | |
JP2006253317A (ja) | 半導体集積回路装置およびpチャネルMOSトランジスタ | |
US6849527B1 (en) | Strained silicon MOSFET having improved carrier mobility, strained silicon CMOS device, and methods of their formation | |
KR20110123733A (ko) | 에피택셜 성장된 스트레스-유도 소오스 및 드레인 영역들을 가지는 mos 디바이스들의 제조 방법 | |
US20120058610A1 (en) | Method of manufacturing semiconductor device | |
JP5120448B2 (ja) | 半導体装置及びその製造方法 | |
JP2009094300A (ja) | 半導体装置及びその製造方法 | |
US20110306170A1 (en) | Novel Method to Improve Performance by Enhancing Poly Gate Doping Concentration in an Embedded SiGe PMOS Process | |
JP2007005627A (ja) | 半導体装置の製造方法 | |
JPWO2006030505A1 (ja) | Mos型電界効果トランジスタ及びその製造方法 | |
US8198633B2 (en) | Stress transfer enhancement in transistors by a late gate re-crystallization | |
JP2005209980A (ja) | 半導体装置の製造方法および半導体装置 | |
KR100760912B1 (ko) | 반도체 소자 및 그 제조 방법 | |
JP2009164222A (ja) | 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: 200880125404.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08703898 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009550406 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 08703898 Country of ref document: EP Kind code of ref document: A1 |