WO2005038931A1 - 半導体装置及び半導体装置の製造方法 - Google Patents
半導体装置及び半導体装置の製造方法 Download PDFInfo
- Publication number
- WO2005038931A1 WO2005038931A1 PCT/JP2004/015405 JP2004015405W WO2005038931A1 WO 2005038931 A1 WO2005038931 A1 WO 2005038931A1 JP 2004015405 W JP2004015405 W JP 2004015405W WO 2005038931 A1 WO2005038931 A1 WO 2005038931A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- source
- semiconductor
- semiconductor device
- drain region
- region
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 445
- 238000000034 method Methods 0.000 title claims description 112
- 238000004519 manufacturing process Methods 0.000 title claims description 100
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 56
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000010410 layer Substances 0.000 claims description 54
- 239000000758 substrate Substances 0.000 claims description 50
- 238000005530 etching Methods 0.000 claims description 34
- 239000013078 crystal Substances 0.000 claims description 20
- 230000005669 field effect Effects 0.000 claims description 16
- 239000011229 interlayer Substances 0.000 claims description 12
- 238000001039 wet etching Methods 0.000 claims description 8
- 238000000407 epitaxy Methods 0.000 claims description 3
- 239000010408 film Substances 0.000 description 123
- 238000010586 diagram Methods 0.000 description 92
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000002184 metal Substances 0.000 description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 14
- 229910052710 silicon Inorganic materials 0.000 description 14
- 239000010703 silicon Substances 0.000 description 14
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 13
- 239000012535 impurity Substances 0.000 description 10
- 238000000137 annealing Methods 0.000 description 9
- 230000003071 parasitic effect Effects 0.000 description 9
- 238000001312 dry etching Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 229910005883 NiSi Inorganic materials 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 229910052735 hafnium Inorganic materials 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 229910004129 HfSiO Inorganic materials 0.000 description 2
- 229910008484 TiSi Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- ZXEYZECDXFPJRJ-UHFFFAOYSA-N $l^{3}-silane;platinum Chemical compound [SiH3].[Pt] ZXEYZECDXFPJRJ-UHFFFAOYSA-N 0.000 description 1
- 241000652704 Balta Species 0.000 description 1
- 229910019001 CoSi Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- -1 O film Chemical class 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910006501 ZrSiO Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910021334 nickel silicide Inorganic materials 0.000 description 1
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229910021339 platinum silicide Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- H01L29/785—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
- H01L29/7853—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET the body having a non-rectangular crossection
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42384—Gate electrodes for field effect devices for field-effect transistors with insulated gate for thin film field effect transistors, e.g. characterised by the thickness or the shape of the insulator or the dimensions, the shape or the lay-out of the conductor
- H01L29/42392—Gate electrodes for field effect devices for field-effect transistors with insulated gate for thin film field effect transistors, e.g. characterised by the thickness or the shape of the insulator or the dimensions, the shape or the lay-out of the conductor fully surrounding the channel, e.g. gate-all-around
-
- 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
- H01L29/66787—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel
- H01L29/66795—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
-
- 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
- H01L29/785—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
- H01L29/7853—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET the body having a non-rectangular crossection
- H01L29/7854—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET the body having a non-rectangular crossection with rounded corners
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the present invention relates to a semiconductor device having a fin-type field-effect transistor that facilitates alignment of a contact hole and has low contact resistance.
- MISFET fin-type MIS field-effect transistor
- a fin-type MISFET having a projection formed of a semiconductor region and forming a main channel on a plane (projection side surface) substantially perpendicular to a substrate.
- fin-type MISFETs are known to be advantageous for improving cutoff characteristics, carrier mobility, reducing short channel effects and punch-through, and improving various characteristics such as V. Being done.
- JP-A-64-8670 discloses a fin-type MISFET in which a part of a rectangular semiconductor is a part of a silicon wafer substrate, and a single crystal silicon layer of a SOI substrate in a part of a rectangular semiconductor. Discloses a fin-type MISFET which is a part of the MISFET.
- the structure of the former will be described with reference to FIG. 1 (a), and the structure of the latter will be described with reference to FIG. 1 (b).
- a part of the silicon wafer substrate 101 becomes a rectangular parallelepiped portion 103, and the gate electrodes 105 extend on both sides beyond the top of the rectangular parallelepiped portion 103. Then, in the rectangular parallelepiped portion 103, a channel is formed in a portion below the insulating film 104 below the gate electrode.
- the channel width corresponds to twice the height h of the rectangular parallelepiped portion 103, and the gate length corresponds to the width L of the gate electrode 105.
- the gate electrode 105 is provided on the insulating film 102 formed in the groove so as to straddle the rectangular parallelepiped portion 103.
- an SOI substrate including a silicon wafer substrate 111, an insulating film 112, and a silicon single crystal layer is prepared, and the silicon single crystal layer is patterned to form a rectangular parallelepiped portion 113.
- a gate electrode 115 is provided on the exposed insulating layer 112 so as to straddle the rectangular parallelepiped portion 113.
- a source region and a drain region are formed on both sides of the gate electrode, and a channel is formed on a portion (the upper surface and side surfaces of the protrusion 113) under the insulating film 114 below the gate electrode.
- Channel width is rectangular semiconductor
- the gate length corresponds to the width L of the gate electrode 115, which corresponds to the sum of twice the height a of the region 113 and its width b.
- Japanese Patent Application Laid-Open No. 2002-118255 discloses a multi-structure fin type having a plurality of rectangular parallelepiped semiconductor protrusions (convex semiconductor layers 213) as shown in FIGS. 2 (a) to 2 (c), for example.
- MOSF ET has been disclosed.
- 2 (b) is a cross-sectional view taken along line BB of FIG. 2 (a)
- FIG. 2 (c) is a cross-sectional view taken along line CC of FIG. 2 (a).
- This fin-type MOSFET has a plurality of convex semiconductor layers 213 formed by a part of the core layer 211 of the silicon substrate 210, these are arranged in parallel with each other, and the convex semiconductor layers A gate electrode 216 is provided across the center. In the gate electrode 216, the upper surface force of the insulating film 214 is also formed along the side surface of each convex semiconductor layer 213. An insulating film 218 is interposed between each convex semiconductor layer and the gate electrode, and a channel 215 is formed in the convex semiconductor layer below the gate electrode.
- a source Z drain region is formed in each of the convex semiconductor layers, and a high concentration impurity layer (punch through stopper layer) is provided in a region 212 below the source Z drain region 217. Further, upper wirings 229 and 230 are provided via an interlayer insulating film 226, and each upper wiring is connected to the source / drain region 217 and the gate electrode 216 by each contact plug 228. Each source Z drain region is connected to a common source Z drain electrode 229.
- Japanese Patent Application Laid-Open No. 2001-298194 discloses, for example, a fin-type MOSFET as shown in FIGS. 3 (a) and 3 (b).
- This fin-type MOSFET is formed using an SOI substrate including a silicon substrate 301, an insulating layer 302 and a semiconductor layer (single-crystal silicon layer) 303, and a patterned semiconductor layer 303 is provided on the insulating layer 302. ing.
- a plurality of openings 310 are provided so as to cross the semiconductor layer 303 in a row. These openings 310 are formed so that the insulating layer 302 is exposed when the semiconductor layer 303 is patterned.
- the gate electrode 305 is formed along the arrangement direction of the openings so as to straddle the center of these openings 310.
- An insulating film is interposed between each of the semiconductor layers (conductive paths) 332 between the openings 310, and a channel is formed in a conductive path below the gate electrode.
- the insulating film on the upper surface of the conduction path 332 is a gate insulating film as thin as the insulating film on the side surface, a channel is formed on both sides and the upper surface of the semiconductor layer 332 under the gate electrode.
- both sides of the row of the opening 310 are the source / drain regions. Constructs area 304.
- the source Z drain region 304 connected to each conduction path is shared and forms a pair of source Z drain regions 304 as a whole.
- the silicide film is formed by sputtering.
- the source Z drain region has a substantially rectangular parallelepiped shape, and the side surface of the source Z drain region is formed mainly perpendicular to the substrate. It was difficult to form a silicide film thereon. Further, when a silicide film is formed on the side surface by using a CVD method or the like, abnormal growth such as facet formation may occur, or the entire source Z drain region may be silicide.
- the present invention has been made in view of the above situation, and in a semiconductor device having a fin-type MISFET, the width of the source Z drain region is such that the width of the channel is formed in a protruding semiconductor.
- the source Z drain region has an inclined portion that is larger than the width of the region and the width of the source Z drain region continuously increases toward the base side, or has an uneven portion with a continuously increasing cross-sectional area. It is characterized by. Since the semiconductor device of the present invention has the inclined portion or the uneven portion, the silicide film can be formed in a wider area than the conventional fin-type MISFET.
- the present invention facilitates alignment when forming a contact hole on a source Z drain region by having the above configuration, and reduces the contact resistance by reducing the parasitic resistance of the source Z drain region.
- the purpose is to aim. It is another object of the present invention to provide a method for manufacturing such a semiconductor device.
- the present invention has the following configurations. That is, the present invention provides a semiconductor device comprising: a projecting semiconductor region provided on a base; a projecting source z drain region formed on both sides of the semiconductor region; and at least a side surface of the semiconductor region via an insulating film.
- a semiconductor device comprising a provided gate electrode,
- the source Z drain region has a width that is larger than the semiconductor region at least in a portion where the width is the largest, and that the uppermost side force of the source Z drain region continuously increases toward the base body.
- the present invention relates to a semiconductor device having an inclined portion, and a silicide film formed on the surface of the inclined portion.
- a plurality of projecting semiconductor regions provided on a base, a plurality of source Z drain regions formed with the semiconductor region interposed therebetween, and a small number of the semiconductor regions via an insulating film are provided.
- a gate electrode provided on the side surface
- the plurality of semiconductor regions are arranged so as to be parallel to each other in a direction perpendicular to the direction in which the channel current flows, and the gate electrode extends in a direction perpendicular to the direction in which the channel current flows across the plurality of semiconductor regions.
- the source Z drain region has a width that is at least the largest, partially larger than the width of the semiconductor region, and continuously increases toward the uppermost side of the source Z drain region toward the base.
- the present invention relates to a semiconductor device having an inclined portion, and a silicide film formed on the surface of the inclined portion.
- the present invention relates to a plurality of protruding semiconductor regions provided on a base, and a pair of protruding source Z drains commonly formed in the plurality of semiconductor regions with the plurality of semiconductor regions interposed therebetween.
- the plurality of semiconductor regions are arranged so as to be parallel to each other in a direction perpendicular to the direction in which the channel current flows, and the gate electrode extends in a direction perpendicular to the direction in which the channel current flows across the plurality of semiconductor regions.
- the source Z drain region force has an uneven portion whose cross-sectional area continuously increases in caloric force also directed toward the base, and a silicide film is formed on the surface of the uneven portion.
- the uneven portion may be formed in such a manner that the semiconductor region and the uneven portion are arranged in parallel at equal intervals with the plurality of semiconductor regions so as to be directed in an arrangement direction of the plurality of semiconductor regions. It is preferred that in the present invention, it is preferable that an uppermost side of the source Z drain region is a surface parallel to the plane of the base, and a silicide film is formed on the surface.
- all of the source Z drain regions are formed by inclined portions having a silicide film formed on a surface thereof.
- the width of the inclined portion of the source Z drain region is increased at a fixed rate from the uppermost side toward the base.
- the cross-sectional area of the concave-convex portion increases at a fixed rate with respect to the uppermost side force toward the base.
- the present invention is a method for manufacturing a semiconductor device provided with a field-effect transistor having a protruding semiconductor region forming a channel on a side surface,
- a protruding source Z drain region provided with a protruding semiconductor region having a gate electrode formed therebetween is selectively epitaxially grown, and the width of the source Z drain region is larger than the width of the semiconductor region.
- the present invention is a method for manufacturing a semiconductor device provided with a field-effect transistor having a plurality of projecting semiconductor regions forming a channel on a side surface,
- the plurality of protruding source Z drain regions provided across the plurality of semiconductor regions are selectively epitaxially grown. Forming an inclined portion in which the width of the source Z drain region is larger than the width of the semiconductor region and the uppermost side force of the source Z drain region is continuously increased toward the substrate side; And (b) a step of forming a silicide film on the surface of the inclined portion.
- the present invention is a method for manufacturing a semiconductor device provided with a field-effect transistor having a plurality of projecting semiconductor regions forming a channel on a side surface,
- the present invention further provides that the inclined portion is substantially parallel to the width direction of the source Z drain region and the direction from the uppermost side to the base side and crosses the uppermost portion. It is preferred to have selective epitaxial growth so that up to eight crystal planes are formed.
- the present invention further provides that the uneven portion has substantially eight cross sections parallel to the width direction of the source Z drain region and the direction from the uppermost side to the base side and crossing the uppermost portion. It is preferable to allow selective epitaxial growth to be formed on the crystal plane.
- the present invention further provides that the inclined portion is substantially parallel to the width direction of the source Z drain region and the direction from the uppermost side to the base side and crosses the uppermost portion.
- Bay It is preferable to make the epitaxial growth so that the curved shape force also becomes.
- the uneven portion may have a substantially curved shape when viewed in a cross section parallel to the width direction of the source Z drain region and the direction from the uppermost side to the base side and crossing the uppermost portion. It is preferable to grow the epitaxy so that the power is also strong.
- the present invention is a method for manufacturing a semiconductor device provided with a field-effect transistor having a protruding semiconductor region forming a channel on a side surface,
- a protruding source Z drain region provided to have a width larger than the width of the semiconductor region with the semiconductor region interposed therebetween is etched.
- An inclined portion is provided in which the width of the source Z drain region is larger than the width of the semiconductor region and the uppermost force of the source Z drain region continuously increases toward the base toward the base.
- a step of forming a silicide film on the surface of the inclined portion is provided.
- the present invention is a method for manufacturing a semiconductor device including a field-effect transistor having a plurality of projecting semiconductor regions forming a channel on a side surface,
- a gate electrode is provided across a plurality of protruding semiconductor regions, and a pair of protruding source Z drain regions are provided with the plurality of semiconductor regions interposed therebetween.
- the source Z drain region is a plurality of source Z drain regions separated from each other with the plurality of semiconductor regions interposed therebetween, and the width of the source Z drain region is larger than the width of the semiconductor region and the width of the source Z drain region during the etching.
- Providing an inclined portion whose width is continuously increased from the uppermost side toward the substrate side, and (C) forming a silicide film on the inclined portion.
- the present invention relates to a method for manufacturing a semiconductor device.
- the present invention is a method for manufacturing a semiconductor device including a field-effect transistor having a plurality of projecting semiconductor regions forming a channel on a side surface,
- the etching is a wet etching method.
- the base is an insulating film layer, and the protruding semiconductor region and the protruding source Z drain region are formed on the insulating film layer.
- the substrate may be an interlayer insulating film,
- a part of a semiconductor layer provided below the interlayer insulating film penetrates the interlayer insulating film and is located above the interlayer insulating film. It is preferable that it is a protrusion.
- the semiconductor device of the present invention preferably further includes a planar type field effect transistor having a semiconductor region in which a main channel is formed on the upper surface and a source Z drain region having a raised portion.
- a semiconductor device including a fin type MISFET, wherein the source Z drain
- the source Z drain By providing a sloped portion or an uneven portion in the contact region, it is possible to provide a semiconductor device in which the contact resistance is reduced and the alignment of the contact hole is facilitated, and a method of manufacturing the same.
- a silicide film By providing an inclined portion or an uneven portion having a silicide film formed on the entire surface of the source Z drain region, a silicide film can be formed over a wide area. As a result, the alignment of the contact holes becomes easier, and the parasitic resistance can be more effectively reduced.
- the uppermost side of the source Z drain region has a plane parallel to the base plane, so that a thicker silicide film can be provided, and the parasitic resistance can be more effectively reduced.
- a silicide film in a multi-structure MISFET, by providing a source / drain region having an inclined portion or an uneven portion, a silicide film can be formed over a wide area and the position of a contact hole can be adjusted more than in a single-structure MISFET. Becomes easier.
- FIG. 1 (a) is an explanatory view of a conventional single-structure fin-type MISFET.
- FIG. 1B is an explanatory diagram of a conventional fin type MISFET having a single structure.
- FIG. 2 (a) is an explanatory view of a conventional multi-structure fin-type MISFET.
- FIG. 2B is an explanatory diagram of a conventional multi-structure fin-type MISFET.
- FIG. 2 (c) is an explanatory view of a conventional multi-structure fin-type MISFET.
- FIG. 3 (a) is an explanatory view of a conventional multi-structure fin-type MISFET.
- FIG. 3B is an explanatory view of a conventional multi-structure fin-type MISFET.
- FIG. 4 (a) is an explanatory diagram of one example of a semiconductor device of the present invention.
- FIG. 4B is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 5 (a) is an explanatory diagram of one example of a semiconductor device of the present invention.
- FIG. 5B is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 5C is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 6 (a) is an explanatory diagram of one example of a semiconductor device of the present invention.
- FIG. 6B is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 6C is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 6D is an explanatory diagram of an example of the semiconductor device of the present invention.
- Figure 6 (e) shows the book
- FIG. 3 is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 6 (f) is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 7 (a) is an explanatory diagram of one example of a semiconductor device of the present invention.
- FIG. 7B is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 7C is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 7D is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 8 (a) is an explanatory diagram of one example of a semiconductor device of the present invention.
- FIG. 8B is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 8C is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 8D is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 9 (a) is an explanatory diagram of one example of a semiconductor device of the present invention.
- FIG. 9B is an explanatory diagram of one example of the semiconductor device of the present invention.
- FIG. 9C is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 10 (a) is an explanatory diagram of one example of a semiconductor device of the present invention.
- FIG. 10B is an explanatory diagram of an example of the semiconductor device of the present invention.
- FIG. 10 (c) is an explanatory diagram of one example of the semiconductor device of the present invention.
- FIG. 11 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 11B is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 11C is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 11D is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 11E is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. Ll (f) is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 12 (a) is an explanatory diagram of a method for manufacturing a semiconductor device according to the present invention.
- FIG. 12B is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 12 (c) is an illustration of the method for manufacturing a semiconductor device of the present invention.
- FIG. 12D is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 13 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 13B is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 13 (c) is an illustration of the method for manufacturing a semiconductor device of the present invention.
- FIG. 13 (d) is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 14 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- Figure 14 (b) FIG. 4 is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 14 (c) is an illustration of the method for manufacturing a semiconductor device of the present invention.
- FIG. 14D is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 15 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 15B is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 15 (c) is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 15D is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 15E is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 15F is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 15 (g) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 15H is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 16 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 16B is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 16 (c) is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 16D is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 16E is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 16F is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 16 (g) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 17 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 17B is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 17 (c) is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 17D is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 18 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 18B is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 18 (c) is an illustration of the method for manufacturing a semiconductor device of the present invention.
- FIG. 18D is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 19 (a) is an explanatory diagram of a method for manufacturing a semiconductor device according to the present invention.
- FIG. 19B is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 19 (c) is an illustration of the method for manufacturing a semiconductor device of the present invention.
- FIG. 19D is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 19E is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- Figure 19 (f () Is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 19 (g) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 19H is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 20 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 20B is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 21 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 21B is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 21C is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 22 (a) is an explanatory diagram of a semiconductor device of the present invention.
- FIG. 22 (b) is an explanatory diagram of the semiconductor device of the present invention.
- FIG. 22C is an explanatory diagram of the semiconductor device of the present invention.
- FIG. 22 (d) is an explanatory diagram of the semiconductor device of the present invention.
- FIG. 23 (a) is an explanatory diagram of a semiconductor device of the present invention.
- FIG. 23 (b) is an explanatory diagram of the semiconductor device of the present invention.
- FIG. 23 (c) is an explanatory diagram of the semiconductor device of the present invention.
- FIG. 23D is an explanatory diagram of the semiconductor device of the present invention.
- FIG. 24 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 24B is an explanatory diagram of the method for manufacturing the semiconductor device of the present invention.
- FIG. 24 (c) is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 25 (a) is an explanatory diagram of a method for manufacturing a semiconductor device of the present invention.
- FIG. 25B is an explanatory diagram of the method for manufacturing a semiconductor device according to the present invention.
- FIG. 25 (c) is an explanatory diagram of the method for manufacturing a semiconductor device of the present invention.
- FIG. 4 (b) shows an example of the semiconductor device of the present invention.
- FIG. 4A shows a protruding semiconductor region in which a source Z drain region and a channel are formed, which are included in the semiconductor device of FIG. 4B.
- the semiconductor device of the present invention has a projecting semiconductor region 403 and a projecting source Z drain region 406 formed so as to sandwich the semiconductor region.
- a gate electrode 405 is provided on a side surface of the protruding semiconductor region 403 via a gate insulating film.
- the source / drain region 40 A silicide film 409 is provided on 6.
- the protruding semiconductor region 403 has an upper surface 410 parallel to the base plane (arbitrary plane parallel to the substrate) and a side surface 407 perpendicular to the base plane. A channel is formed on the side surface 407, and channel current flows in the direction of arrow 404.
- the protruding semiconductor region may be a rectangular parallelepiped or a shape deformed from the rectangular parallelepiped as long as processing accuracy and desired element characteristics can be obtained.
- the width of the source Z drain region 406 of the MISFET of the present invention is larger than the width of the protruding semiconductor region 403 where the channel is formed, and the source Z drain region is continuously moved from the uppermost side toward the base side. Has an inclined portion having a larger width.
- the fin-type MISFET of the present invention can provide a silicide film over a larger area on the source Z drain region than the conventional fin-type MISFET. As a result, the alignment of the contact hole on the source Z drain region becomes easy and the parasitic resistance of the MISFET can be reduced, reducing the contact resistance.
- the width of the projecting semiconductor region refers to the width of the projecting semiconductor region 403 in a direction perpendicular to the channel current flowing direction 404 and parallel to the substrate plane (insulating film) 402 (FIG. 4A).
- the width of the source Z drain region refers to the width in a direction perpendicular to the channel current flowing direction 404 of the source Z drain region and parallel to the substrate plane (insulating film) 402 (c in FIG. 4).
- the MISFET of the present invention can be of a double-gate type in which the gate insulating film formed on the upper surface 410 of the protruding semiconductor region 403 is thickened and a channel is formed only on the side surface 407. . Further, the gate insulating film formed on the upper surface 410 can be thinned to be a tri-gate type in which a channel is also formed on the upper surface 410.
- FIGS. 22 and 23 show examples of the MISFET of the present invention in which the gate electrode has various structures.
- FIGS. 22 and 23 correspond to cross-sectional views taken along the line BB of FIG. 5A, respectively.
- FIG. 22 is a cross-sectional view of a semiconductor device having no cap insulating film
- FIG. 23 is a cross-sectional view of a semiconductor device having a cap insulating film.
- FIGS. 22A and 23A are cross-sectional views of a semiconductor device in which a semiconductor region 1003 is provided over an insulator 1002.
- FIGS. 22 (b) and 23 (b) show the lower part of the lower end of the semiconductor region 1003. Shows a structure in which the lower end of the gate electrode 1005 is located. This structure is called “ ⁇ gate structure” because it resembles the Greek letter “ ⁇ ”.
- ⁇ gate structure because it resembles the Greek letter “ ⁇ ”.
- FIGS. 22 (c) and 23 (c) show a structure in which the gate electrode 1005 is wound around a part of the lower surface side of the semiconductor region 1003. (A structure extending so as to cover a part) is shown. This structure is called “ ⁇ gate structure” because the gate electrode resembles the Greek letter “ ⁇ ”. According to this structure, the control of the channel by the gate electrode is further strengthened, and the lower surface of the semiconductor region can be used as the channel, so that the driving capability can be improved.
- FIGS. 22 (d) and 23 (d) show a structure in which the gate electrode 1005 completely extends to the lower surface side of the semiconductor region 1003.
- the semiconductor region floats in the air below the gate with respect to the plane of the base under the gate, and is called a “gate-all-around” (GAA) structure.
- GAA gate-all-around
- the lower surface of the semiconductor region can also be used as a channel, so that driving capability can be improved and short channel characteristics can be improved.
- the upper corner of the semiconductor region may be rounded.
- a conductor having a desired conductivity and work function can be used as a material for the gate electrode.
- a conductor having a desired conductivity and work function can be used.
- a stacked structure of a stacked film of a semiconductor and a metal film, a stacked film of metal films, a stacked film of a semiconductor and a silicide film, and the like can be used in addition to a single crystal film.
- an SiO film or a SiON film can be used as the gate insulating film.
- a body insulating film may be used.
- the High-K film for example, TaO film, A1
- Metal oxides such as O film, La O film, HfO film, ZrO film, HfSiO, ZrSiO, HfA10, Zr
- a composite metal oxide film represented by a composition formula such as AIO can be given. Also gate insulation
- the film may have a laminated structure.For example, SiO or HfSiO
- a laminated film in which a silicon-containing oxide film such as No. 2 is formed and a High-K film is provided thereon may be used.
- the semiconductor region and the source Z drain region of the fin-type MISFET in the present invention have a structure protruding from the plane of the base.
- the semiconductor device of the present invention may be formed using an SOI substrate.
- the base is the insulating film layer of the SOI substrate, and the protruding semiconductor region and the protruding source Z drain region are formed from the silicon layer of the SOI substrate.
- SiO silicon 'on' sapphire
- a structure in which the insulator under the semiconductor region itself serves as a supporting substrate, such as silicon and silicon 'on' spinel, can be used.
- the insulating support substrate include quartz and A1N substrates in addition to the above SOS.
- a semiconductor region can be provided on these supporting substrates by a SOI manufacturing technique (a bonding step and a thin film forming step).
- the semiconductor device of the present invention may be formed using a notch substrate. That is, in this semiconductor device, an interlayer insulating film is provided on the semiconductor layer, and a part of the semiconductor layer penetrates through the interlayer insulating film and protrudes upward from the semiconductor layer, and a projecting semiconductor region and a projecting source Z drain region.
- FIG. 24 shows an example of a semiconductor device using a Balta substrate.
- FIG. 24A is a diagram illustrating a state in which a part of the semiconductor layer 1011 penetrates the interlayer insulating film 1012 and protrudes upward to form a protruding semiconductor region 1013.
- FIG. 24 (b) and 24 (c) are diagrams showing a state in which the protruding semiconductor region 1013 is selectively epitaxially grown.
- FIG. 24 (b) is a cross-sectional view (A--A in FIG. 5 (a)).
- a semiconductor device having a source Z drain region having a curved cross section (corresponding to the direction) is shown.
- FIG. 24C shows a semiconductor device having a source Z drain region having a tapered cross section. Whether the cross section has a curved shape or a tapered shape depends on the conditions of selective epitaxial growth.
- the fin-type MISFET of the present invention is preferably one in which main channels are formed on both side surfaces of a protruding semiconductor region, and the width W of the protruding semiconductor region below the gate electrode is It is preferable that the width is such that it is completely depleted by depletion layers formed from both side surfaces of the protruding semiconductor region during operation.
- the width W of the protruding semiconductor region below the gate electrode is preferably set to 5 nm or more from the viewpoint of processing accuracy and strength, and more preferably set to lOnm or more. Good.
- the thickness is preferably set to 60 nm or less, more preferably 30 nm or more, from the viewpoint of setting the channel formed on the side surface of the protruding semiconductor region as a dominant channel and obtaining a fully depleted structure. .
- the specific dimensions and the like of the fin-type MISFET having the protruding semiconductor region in the present invention can be appropriately set, for example, in the following range.
- the width W of the protruding semiconductor region is 5 to 100 nm
- Gate insulating film thickness 11-5nm (for SiO)
- Impurity concentration of channel forming region 0—1 X 10 19 cm 1-3 ,
- the impurity concentration in the source / drain regions 1 ⁇ 10 19 —1 ⁇ 10 21 cm— 3 .
- the height H of the protruding semiconductor region indicates the length in the direction perpendicular to the substrate plane of the semiconductor portion protruding from the base insulating film.
- the channel formation region refers to a portion below the gate electrode of the semiconductor region having a projection shape.
- the silicide film preferably has at least one selected from the group consisting of Ti, Co, Ni, Pt, Pd, Mo, W, Zr, Hf, Ta, Ir, Al, V and Cr.
- the thickness of the silicide film is preferably 10 to 50 nm. When the thickness is lOnm or more, the parasitic resistance can be effectively reduced. If the thickness is 50 nm or less, the silicidation reaction proceeds excessively during the annealing treatment, and there is no problem such as impairing the device characteristics of the source Z drain region.
- the first embodiment of the present invention relates to a semiconductor device having a fin type MISFET having a single structure.
- a single-structure MISFET has one protruding semiconductor region and a pair of source Z drain regions in one transistor.
- the shape of the source Z drain region of the present embodiment is at least a portion having the largest width.
- the width of the source Z drain region is larger than the width of the protruding semiconductor region where the channel is formed, and the width of the source Z drain region continuously increases with the uppermost side force also directed toward the base.
- Various shapes can be given as the shape of the inclined portion, which is good if it has the inclined portion.
- the inclined portion of the source Z drain region has, for example, a curved shape in which the rate of increase in width from the top to the base side is not constant, or a tapered shape in which the rate of increase in width is constant. May be.
- FIG. 5A is a top view of a semiconductor device provided with an MISFET having a source Z drain region having a tapered shape.
- FIG. 5B is a cross-sectional view of the semiconductor device of FIG. 5A in the A-A direction
- FIG. 5C is a cross-sectional view of the semiconductor device of FIG. 5A in the B-B direction.
- the semiconductor region 506 immediately below the gate electrode 501 has a projection shape (typically, a rectangular parallelepiped shape) and has a width a.
- a thick gate insulating film 505 is provided on the upper surface 514 of the protruding semiconductor region 506, and a channel is formed on the side surface 515 of the protruding semiconductor region 506.
- the width c of the source Z drain region is larger than the width a of the protruding semiconductor region 506 and is directed from the uppermost side 521 of the source Z drain region to the base (insulating film) 509 side.
- the width c is increasing.
- a taper shape is formed in which the width of the source Z drain region increases at a constant rate in the direction of arrow 511.
- a silicide film 504 is formed on the taper shape 510 and the upper surface 520.
- FIG. 6-8 shows a modification of the semiconductor device of FIG. 5, and shows only the cross-sectional shape of the source Z drain region.
- FIG. 6-8 shows a cross-sectional shape of the source Z drain region in a direction corresponding to line AA in FIG. 5 (a).
- FIG. 6 shows a case where the source Z drain region has a curved shape.
- the cross section of the source Z drain region is elliptical, and the major axis of the ellipse coincides with the normal direction of the base (insulating film) 509.
- the cross section of the source Z drain region is elliptical, and the minor axis of the ellipse coincides with the normal direction of the base 509.
- the cross section of the source Z drain region is a perfect circle.
- the source Z The in-region can have a variety of curved shapes.
- the width force of the source Z drain region at all portions of the source Z drain region also increases toward the substrate side (in the direction of arrow 511). I'm familiar. In this case, since the silicide film can be formed on all the portions on the source Z drain region, the alignment of the contact holes becomes easy, and the parasitic resistance can be reduced more effectively.
- the width of the source Z drain region becomes larger (in the direction of arrow 511) as the force on the uppermost side also increases toward the base. It has a shape, and its width decreases as it approaches the base. Even with such a shape, the silicide film 504 can be formed in the upper curved portion. Further, the source Z drain region may have a concave shape instead of a convex shape.
- FIG. 7 shows a modification of FIG.
- the upper surface 520 of the source Z drain region forms a plane parallel to the plane of the base 509, and has a curved shape 516 on both sides thereof.
- a part of the source Z drain region has a curved shape 516, and has a tapered shape 510 on both sides thereof.
- the source Z drain region has three curved shapes 516.
- the source Z drain region has a curved shape 516 and a side surface 513 perpendicular to the substrate.
- the source Z drain region may have a plurality of different curved shapes.
- a plurality of types of curved shapes and tapered shapes may be used, and a part of the source Z drain region may have a plane parallel to the base or a plane perpendicular to the base.
- a silicide film 504 is formed on the tapered shape 510, the upper surface 520, and the curved shape 516.
- FIG. 8 shows a case where the source Z drain region has a tapered shape in which the uppermost force is directed toward the substrate (in the direction of arrow 511) and the width thereof is increased at a constant rate. You.
- the source Z drain region has a tapered shape 510 with a gentle inclination angle.
- the source Z drain region has a tapered shape 510 with a steep inclination angle.
- the inclination angle is preferably 10-80 °, more preferably 20-60 °, and even more preferably 40-50 °.
- the inclination angle is small, the silicide film can be formed thick by sputtering.
- the tilt angle is large, the source Z The area occupied by the substrate region on the substrate can be reduced. Therefore, when the inclination angle of the tapered shape is within these ranges, the semiconductor device can be optimized in terms of the contact resistance and the planar area of the element.
- the tilt angle represents an angle based on the plane of the base (insulating film) 509, and is defined as an angle of 90 ° or less.
- a taper shape having an inclination angle of 25, 2 °, 54.7 °, or these two kinds of inclination angles is exemplified.
- the source Z drain region has a plurality of types of tapered shapes 510 having different inclination angles.
- the source Z drain region has a tapered shape 510 and a side surface 513 perpendicular to the base.
- a silicide film 504 is formed on the tapered shape 510 and the upper surface 520.
- the source Z drain region may have an upper surface 520 parallel to the base.
- a thick silicide film can be formed at the time of sputtering on the plane parallel to the plane of the base, and the parasitic resistance can be reduced.
- the width of the plane parallel to the upper substrate is
- the width may be smaller than the width of the protruding semiconductor region.
- the source Z drain region may have a plurality of types of tapered shapes having different inclination angles. Further, it may have a plurality of types of concave curved shapes and convex curved shapes. Further, a part of the source Z drain region may have a plane parallel to the base or a plane perpendicular to the base.
- the source Z drain region of the MISFET of the present invention may not have a symmetric shape with respect to a predetermined plane parallel to the side surface of the protruding semiconductor region.
- one source Z drain region has a curved shape as shown in FIG. 6 and the other source Z drain region is a It may have a tapered shape as shown.
- the semiconductor device of the present invention is characterized in that the width increases from the uppermost side of the source Z drain region toward the base, and the width refers to the base (insulating film) in the source Z drain region.
- the width at a predetermined cross section perpendicular to the plane of 509 and perpendicular to the direction in which the channel current flows is specified.
- the width only needs to increase from the uppermost side toward the substrate side in any cross section in the source Z drain region.
- the cross-sectional shapes at different positions of the source Z drain region may be the same or different.
- the width as described above has a shape in which the uppermost side force also increases toward the base, and the second cross section 805 may have a rectangular cross section.
- the second embodiment of the present invention relates to a semiconductor device having a multi-structure MISFET.
- a multi-structure MISFET a plurality of protruding semiconductor regions are arranged in a single transistor in parallel in a row in a direction perpendicular to the direction in which channel current flows, and extend over the plurality of protruding semiconductor regions.
- the gate electrode 501 is constituted by the provided conductor wiring.
- FIGS. 9A and 10A are top views of a semiconductor device having an MISFET.
- 9 (b) and 10 (b) are cross-sectional views of the semiconductor device of FIGS. 9 (a) and 10 (a) taken along the line BB.
- 9 (c) and 10 (c) are cross-sectional views of the semiconductor device of FIGS. 9 (a) and 10 (a) taken along the line AA.
- a plurality of (only two are shown in the figure) protruding semiconductor regions 506 are provided in a direction 517 perpendicular to the direction in which the channel current flows, and the plurality of protruding semiconductor regions 506 are provided.
- a plurality of pairs (only two pairs are shown in the figure) of source Z drain regions 503 are provided.
- Each source Z drain region has a tapered shape 510.
- a plurality of (only two are shown in the figure) protruding semiconductor regions 506 are provided in a row, and these protruding semiconductor regions 506 are sandwiched therebetween.
- the source Z drain region 503 thus formed is shared, and a pair of source Z drain regions 503 are formed in one MISFET.
- the source Z drain region 503 has a plurality of convex portions 519.
- Each of the protrusions 519 also has a cross-sectional area that increases toward the base (in the direction of arrow 511) on the uppermost side of the source Z drain region.
- the cross-sectional area indicates the cross-sectional area of the source Z drain region on a predetermined plane parallel to the plane of the base (insulating film) 509.
- a plurality of convex portions 519 in the source Z drain region 503 are formed at equal intervals with the semiconductor region 506 in the arrangement direction 517 of the semiconductor region 506, and the arrangement direction force of the semiconductor region 506 is also increased.
- one convex portion 519 and one semiconductor region 506 are formed in parallel.
- Each concavo-convex portion 519 in the source Z drain region is a single-structure MISFE It has a shape corresponding to the tapered shape 510 of the source Z drain region of T.
- each source Z drain region is a single type. MISFET can have the same shape. Further, even in a multi-structure MISFET in which the source Z drain region formed so as to sandwich the protruding semiconductor region as shown in FIG. 10, the uneven portion forming the source Z drain region has It can have a shape corresponding to a single MISFET. The uneven portions may have the same shape or may have different shapes. The uneven portions may be in contact with each other on the insulating film 509.
- the source Z drain region or the concavo-convex portions in the source Z drain region of these multi-structure MISFETs may each have a plurality of types of curved shapes or tapered shapes. Further, a part thereof may have a plane parallel to the base and a plane perpendicular to the base.
- one protruding semiconductor region has an individual source Z drain region or a common large source Z drain region, and a large surface area is silicided. Therefore, the parasitic resistance of the MISFET is reduced, and the contact resistance is reduced. In addition, it is easy to position the contact hole on the source Z drain region.
- a multi-structure MISFET has a plurality of protruding semiconductor regions that use the side surface in a direction perpendicular to the base plane as a channel width, so that the required planar area per channel width can be reduced. This is advantageous for miniaturization of elements.
- This multi-structure can control the channel width by changing the number of protruding semiconductor regions even when a plurality of types of transistors having different channel widths are formed in one chip. As a result, the heights of the projecting semiconductor regions can be made uniform to ensure uniformity of element characteristics.
- the width of a portion under a gate electrode of a plurality of convex semiconductor regions of one transistor (width in a direction parallel to a substrate plane and perpendicular to a channel length direction). are equal to each other, and are preferred! / ,.
- the source Z drain region is formed into a curved shape It is characterized in that it has a process for processing into a shape such as a par shape.
- the typical methods are described in detail in (1) Selective epitaxial growth method and (2) Etching method.
- FIG. 11 shows a manufacturing process of a semiconductor device including a multi-structure fin-type MISFET.
- silicon wafer substrate 601 by shell divination or SIMOX, SiO oxidation
- FIG. 11 (a) is a cross-sectional view of this substrate.
- impurities for the channel formation region are ion-implanted through the SiO film 604.
- the SiO film 604 is removed by etching.
- FIG. 11 (b) shows this cross section.
- the resist mask 605 is used as an etching mask, the single crystal silicon film 603 is subjected to anisotropic dry etching. After that, the resist mask 605 is removed, and a predetermined
- a protruding semiconductor region 606 having a height of is formed.
- the upper surface or side surface of the semiconductor region 606 in the form of a protrusion may not be flat and may have fine protrusions.
- FIG. 21A the boundary between the semiconductor region 911 and the base (SiO film) 907 is shown.
- a fine ⁇ 111 ⁇ plane 903 is formed on the top. This fine surface may affect the shape of the source Z drain region when performing selective epitaxial growth.
- FIG. 11 (c) is a top view of the protruding semiconductor region.
- FIG. 11D is a cross-sectional view of the protruding semiconductor region 606 in FIG.
- a thin SiO film (gate insulating film 6) is formed on the surface (side surface) of the semiconductor region 606 having a projection of single crystal silicon by a thermal oxidation method.
- a polysilicon film is formed on the SiO film 611 by a CVD method.
- FIG. 11E is a top view of the semiconductor device.
- FIG. 11F is a cross-sectional view of the protruding semiconductor region 606 in FIG.
- FIG. 12A is a top view of the semiconductor device.
- FIG. 12B is a cross-sectional view of the source Z drain region 612 in FIG. Thereafter, the source Z drain region 612 is selectively epitaxially grown.
- the cross section of the source Z drain region 612 before the selective epitaxial growth and the protruding semiconductor region where the channel is formed may be the same or different.
- the cross section is a plane perpendicular to the base (insulating film) 602 and a direction perpendicular to the direction in which the channel current flows.
- FIG. 12 (c) shows an example of a manufacturing process in which the source Z drain region of FIG. 12 (a) is selectively epitaxially grown so that the inclined portion does not have a specific crystal plane on the surface. Things.
- the “specific crystal plane” is neither parallel nor perpendicular to the base (SiO film) 602.
- FIG. 12C is a top view of the semiconductor device.
- the selective epitaxial growth is completed in a short time, the adjacent source Z drain regions are not in contact with each other, and the source Z drain regions are individually formed on both sides of each protruding semiconductor region 606. An area is provided.
- the inclined portion does not have a specific crystal plane on the surface, and has a structure having a curved shape.
- FIG. 12D is a cross-sectional view of the source Z drain region 612 in FIG.
- FIG. 13A is a top view of the semiconductor device.
- FIG. 13B is a cross-sectional view of the source Z drain region 612 in FIG.
- the metal layer 609 can be deposited on a wide portion.
- the metal at least one selected from the group consisting of Ti, Co, Ni, Pt, Pd, Mo, W, Zr, Hf, Ta, Ir, Al, V and Cr It is preferably one type.
- the metal reacts with the silicon, and a stable silicide 610 is formed. Thereafter, wet etching is performed to remove the unreacted metal layer.
- FIG. 13C is a top view of the semiconductor device after wet etching.
- the annealing temperature can be set to a desired temperature according to the type of the metal layer. For example, when Ni is used as the metal layer, the temperature is preferably 400 to 600 ° C, and when Co is used, the temperature is preferably 600 to 800 ° C.
- the annealing process may be performed in several stages, or a wet etching process may be provided between the annealing processes.
- FIG. 12 (a) shows an example of a manufacturing process in which the source Z drain region 612 is selectively epitaxially grown for a long time.
- FIG. 14A is a top view of the semiconductor device.
- FIG. 14 (a) since the selective epitaxial growth is performed for a long time, a source Z drain region having an uneven portion common to the plurality of semiconductor regions is provided across the plurality of semiconductor regions. I have. Each uneven portion does not have a specific crystal plane on the surface. Therefore, in the example of FIG. 14A, the source Z drain region 612 has a curved shape.
- FIG. 14B is a cross-sectional view of the source Z drain region 612 in FIG.
- FIG. 14 (c) shows the semiconductor device of FIG. 14 (a) implanted with an impurity, depositing a metal layer, annealing, and removing unreacted metal. Finally, a silicide film 610 is formed on the source Z drain region 612.
- FIG. 14D is a cross-sectional view in the AA direction of the source Z drain region 612 in FIG. 14C.
- the time for performing selective epitaxial growth in order to obtain a semiconductor device having a common source Z drain region depends on operating conditions such as temperature and flow rate of source gas, and may be set to a desired condition.
- FIG. 15 (a) shows an example of a manufacturing process in which the semiconductor device of FIG. 12 (a) is selectively epitaxially grown so that the inclined portion has at least a specific crystal plane on the surface.
- FIG. 15A is a top view of the semiconductor device after selective epitaxial growth is performed for a short time.
- a specific crystal plane grows preferentially, resulting in a tapered shape.
- the fine ⁇ 111 ⁇ plane 90 3 is a priority growth.
- a specific crystal plane is preferentially grown, as shown in Figs. 21 (b) and (c)
- the force be formed so that four (two on one side) surfaces 510 are formed, or that only eight (four on one side) surfaces are formed. More preferred are two (one on one side) or four (two on one side) surfaces.
- FIG. 21 shows a semiconductor device having a single-structure Ml SFET! /, But also in a multi-structure MISFET! And the top force defines the direction 902 on the base side.
- FIG. 15B is a cross-sectional view of the source Z drain region 612 in FIG.
- impurity implantation, metal layer deposition, annealing treatment, and removal of unreacted metal are performed on the semiconductor device of FIG. 15A.
- FIG. 15C is a top view of the semiconductor device after removing the unreacted metal layer.
- FIG. 15D is a cross-sectional view of the source Z drain region 612 in FIG.
- FIG. 15E is a top view of the semiconductor device in the case where the selective epitaxial growth is performed for a long time when the selective epitaxial growth is performed.
- FIG. 15F is a cross-sectional view of the source Z drain region 612 in FIG.
- the source Z drain region has an uneven portion common to the plurality of semiconductor regions with the plurality of semiconductor regions interposed therebetween. .
- a certain crystal plane is preferentially grown, and thus has a tapered shape.
- FIG. 15 (g) is a top view of the semiconductor device shown in FIG. 15 (e) after impurity implantation, metal layer deposition, annealing, and removal of unreacted metal.
- FIG. 15 (h) is a cross-sectional view in the AA direction of the source Z drain region 612 of FIG. 15 (g).
- Selective epitaxial growth can be performed using a CVD apparatus.
- main source gas Can be used disilane gas (Si H) or monosilane gas (SiH). Also, Phosphy
- the doping may be performed using a gas such as hydrogen (PH) and diborane (BH).
- a gas such as hydrogen (PH) and diborane (BH).
- a protruding semiconductor region 701 and a protruding semiconductor region 702 are formed.
- FIG. 16 (a) is a top view showing these semiconductor regions. Note that the protruding semiconductor region 702 protrudes from the base, and is not limited to a rectangular parallelepiped as long as the shape sandwiches all of the semiconductor region 701.
- a gate electrode 703 is formed, implantation ions are implanted, and a gate sidewall 704 is formed in the same manner as in the selective epitaxial growth method (FIG. 16B).
- a resist mask 705 is formed on the entire surface, an opening 710 is provided at a position on the source / drain region 708, which is alternated with the semiconductor region 701, by photolithography in a direction 712 of arrangement of the semiconductor regions 701.
- a mask layer 705 is provided.
- a mask layer 713 is provided on the source Z drain region extending along the direction 714 in which the channel current flows in the semiconductor region 701, and a mask is provided between the mask layers 713.
- An opening 710 is provided.
- the opening may be formed from one end to the other end on the source Z drain region in the direction 714 in which the channel current flows (FIGS. 16 (c) and (e)). It does not need to be formed over the end.
- the shape of the opening can be various shapes such as rectangle, square, circle, ellipse, curved surface, and polygon.
- FIG. 16C is a top view of the semiconductor device.
- FIG. 16D is a cross-sectional view of the source Z drain region 708 in FIG. 16C taken along the line AA.
- FIG. 16E is a top view of the semiconductor device after the etching. As the etching, a wet etching method and a dry etching method can be used.
- a solution such as a KOH solution or a TMAH solution is used.
- Known conditions can be used for the temperature, solution concentration, time and the like at the time of etching.
- wet etching is performed on a semiconductor region whose plane orientation parallel to the base (SiO oxide film) 706 is (100) plane.
- the (111) plane has an extremely low etching rate with respect to other crystal planes. Therefore, a source Z drain region 708 having a tapered shape of 54.7 ° is finally formed.
- isotropic dry etching and anisotropic dry etching are sequentially performed using a resist mask as an etching mask to form a source Z drain region 708 having a tapered shape with a predetermined inclination angle.
- a resist mask as an etching mask
- the inclination angle of the tapered shape can be adjusted by adjusting the etching amount ratio between isotropic dry etching and anisotropic dry etching.
- the conditions for dry etching can be set to known conditions.
- the etching By performing the etching for a long time, it is possible to obtain an MISFET in which the source Z drain regions 708 are individually provided on both sides of each protruding semiconductor region as shown in FIG. 16 (g). .
- the etching is completed in a short time, as shown in FIG. 16F, an MISFET having a common source Z drain region sandwiching each protruding semiconductor region can be obtained.
- the time for performing the etching process to obtain the former semiconductor device differs depending on operating conditions such as temperature and source gas flow rate, and may be set to a desired condition.
- FIGS. 17 (a) and 18 (a) are top views showing the semiconductor device of FIGS. 16 (f) and 16 (g) with the etching mask removed.
- FIGS. 17 (b) and 18 (b) are cross-sectional views of the source Z drain region 708 of FIGS. 17 (a) and 18 (a) in the AA direction, respectively.
- the width of the source Z drain region after the etching should be at least as large as the width of the semiconductor region 701 at least in the largest portion.
- the width of the upper surface 715 of the source Z drain region is smaller than the width of the semiconductor region 701. May be.
- FIG. 19A is a top view of the semiconductor device in which a silicide film 709 is provided in the source Z drain region 708 of FIG. 7A and FIG. 18A.
- FIGS. 17D and 18D are cross-sectional views taken along the line AA of the source Z drain region 708 in FIGS. 17C and 18C, respectively.
- a semiconductor device having a single-structure MISFET can also be manufactured by the same method as that for a semiconductor device having a multi-structure MISFET. However, it differs from the method of manufacturing a semiconductor device having a multi-structure MISFET in that only one protruding semiconductor region is first provided on the base.
- FIG. 19 shows a method of manufacturing a semiconductor device having a single-structure MISFET. First, a protruding semiconductor region is formed. When an inclined portion is formed in the source Z drain region by the etching method, the width of the semiconductor region serving as the source Z drain region is set to be larger than that of the protruding semiconductor region where the channel is formed. Formed.
- FIG. 19A is a top view of the semiconductor device.
- FIG. 19B is a cross-sectional view of the protruding semiconductor region 708 in FIG. 19A taken in the AA direction.
- the source Z drain region 708 is grown by anisotropic selective epitaxial growth.
- FIG. 19C is a top view of the semiconductor device.
- FIG. 19D is a cross-sectional view of the source Z drain region 708 in FIG.
- a metal layer 711 is deposited on the semiconductor device.
- FIG. 19E is a top view of the semiconductor device.
- FIG. 19F is a cross-sectional view of the source Z drain region 708 in FIG.
- FIG. 19G is a top view of the semiconductor device.
- FIG. 19H is a cross-sectional view of the source Z drain region 708 in FIG.
- FIG. 25 shows an example of the manufacturing process of this semiconductor device.
- FIG. 25 (a) shows a state in which a projecting semiconductor region for a fin type MISFET and a source Z drain region (1017, 1018) for a planar type MISFET have been formed.
- FIG. 25 (b) is obtained by selectively epitaxially growing the protruding semiconductor region and the source / drain regions 1017 and 1018 of FIG. 25 (a).
- FIG. 25 (c) shows a state in which a silicide film 1015 is formed on the source Z drain region 1014 and the raised portion 1020 of the semiconductor device of FIG. 25 (b).
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005514825A JP4865331B2 (ja) | 2003-10-20 | 2004-10-19 | 半導体装置及び半導体装置の製造方法 |
US10/576,412 US20070075372A1 (en) | 2003-10-20 | 2004-10-19 | Semiconductor device and manufacturing process therefor |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003359262 | 2003-10-20 | ||
JP2003-359262 | 2003-10-20 | ||
JP2004-294133 | 2004-10-06 | ||
JP2004294133 | 2004-10-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005038931A1 true WO2005038931A1 (ja) | 2005-04-28 |
Family
ID=34467782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/015405 WO2005038931A1 (ja) | 2003-10-20 | 2004-10-19 | 半導体装置及び半導体装置の製造方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070075372A1 (ja) |
JP (2) | JP4865331B2 (ja) |
WO (1) | WO2005038931A1 (ja) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006191109A (ja) * | 2005-01-04 | 2006-07-20 | Samsung Electronics Co Ltd | ファセットチャンネルを有する半導体素子及びその製造方法 |
JP2006310718A (ja) * | 2005-04-29 | 2006-11-09 | Hynix Semiconductor Inc | メモリ素子のトランジスタ構造及びその製造方法 |
JP2006351683A (ja) * | 2005-06-14 | 2006-12-28 | Toshiba Corp | 半導体装置および半導体装置の製造方法 |
JP2007329474A (ja) * | 2006-06-06 | 2007-12-20 | Internatl Business Mach Corp <Ibm> | ハイブリッド・チャネル配向を有するcmosデバイスおよびファセット形成エピタキシを用いてハイブリッド・チャネル配向を有するcmosデバイを作製するための方法 |
JP2009512996A (ja) * | 2005-07-27 | 2009-03-26 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 仮想ボディ・コンタクト型トライゲート |
US7701018B2 (en) | 2004-03-19 | 2010-04-20 | Nec Corporation | Semiconductor device and method for manufacturing same |
US7859065B2 (en) | 2005-06-07 | 2010-12-28 | Nec Corporation | Fin-type field effect transistor and semiconductor device |
US7989855B2 (en) | 2004-06-10 | 2011-08-02 | Nec Corporation | Semiconductor device including a deflected part |
TWI420573B (zh) * | 2010-02-26 | 2013-12-21 | Taiwan Semiconductor Mfg | 積體電路結構的形成方法 |
JP2015035590A (ja) * | 2013-07-12 | 2015-02-19 | 株式会社半導体エネルギー研究所 | 半導体装置 |
CN104425264A (zh) * | 2013-08-20 | 2015-03-18 | 中芯国际集成电路制造(上海)有限公司 | 半导体结构的形成方法 |
JP5982055B1 (ja) * | 2015-12-18 | 2016-08-31 | 株式会社フローディア | メモリセル、不揮発性半導体記憶装置、および不揮発性半導体記憶装置の製造方法 |
JP6069569B1 (ja) * | 2016-08-24 | 2017-02-01 | 株式会社フローディア | メモリセル、および不揮発性半導体記憶装置 |
WO2017104505A1 (ja) * | 2015-12-18 | 2017-06-22 | 株式会社フローディア | メモリセル、不揮発性半導体記憶装置、および不揮発性半導体記憶装置の製造方法 |
JP2017130667A (ja) * | 2008-11-07 | 2017-07-27 | 株式会社半導体エネルギー研究所 | トランジスタ |
US9806202B2 (en) | 2014-11-21 | 2017-10-31 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and memory device |
US9842909B2 (en) | 2013-01-24 | 2017-12-12 | Samsung Electronics Co. Ltd. | Semiconductor device and fabricating method thereof |
JP2018160704A (ja) * | 2018-07-18 | 2018-10-11 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2022042639A (ja) * | 2020-09-03 | 2022-03-15 | 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 |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100855834B1 (ko) * | 2007-05-25 | 2008-09-01 | 주식회사 하이닉스반도체 | 반도체 소자 및 그 제조 방법 |
JP2009032955A (ja) * | 2007-07-27 | 2009-02-12 | Toshiba Corp | 半導体装置、およびその製造方法 |
US7884390B2 (en) * | 2007-10-02 | 2011-02-08 | Fairchild Semiconductor Corporation | Structure and method of forming a topside contact to a backside terminal of a semiconductor device |
US8048723B2 (en) | 2008-12-05 | 2011-11-01 | Taiwan Semiconductor Manufacturing Company, Ltd. | Germanium FinFETs having dielectric punch-through stoppers |
US8106459B2 (en) | 2008-05-06 | 2012-01-31 | Taiwan Semiconductor Manufacturing Company, Ltd. | FinFETs having dielectric punch-through stoppers |
US8263462B2 (en) | 2008-12-31 | 2012-09-11 | Taiwan Semiconductor Manufacturing Company, Ltd. | Dielectric punch-through stoppers for forming FinFETs having dual fin heights |
US8293616B2 (en) | 2009-02-24 | 2012-10-23 | Taiwan Semiconductor Manufacturing Company, Ltd. | Methods of fabrication of semiconductor devices with low capacitance |
JP2010206112A (ja) * | 2009-03-05 | 2010-09-16 | Renesas Electronics Corp | 半導体装置 |
US8362575B2 (en) * | 2009-09-29 | 2013-01-29 | Taiwan Semiconductor Manufacturing Company, Ltd. | Controlling the shape of source/drain regions in FinFETs |
CN101719501B (zh) * | 2009-12-01 | 2011-07-20 | 中国科学院上海微系统与信息技术研究所 | 混合晶向反型模式全包围栅cmos场效应晶体管 |
CN101719500B (zh) * | 2009-12-01 | 2011-09-21 | 中国科学院上海微系统与信息技术研究所 | 混合材料反型模式全包围栅cmos场效应晶体管 |
WO2011067821A1 (ja) * | 2009-12-04 | 2011-06-09 | 株式会社 東芝 | 半導体装置の製造方法 |
US8420455B2 (en) | 2010-05-12 | 2013-04-16 | International Business Machines Corporation | Generation of multiple diameter nanowire field effect transistors |
US8997136B2 (en) | 2010-07-22 | 2015-03-31 | Time Warner Cable Enterprises Llc | Apparatus and methods for packetized content delivery over a bandwidth-efficient network |
KR101835655B1 (ko) * | 2012-03-06 | 2018-03-07 | 삼성전자주식회사 | 핀 전계 효과 트랜지스터 및 이의 제조 방법 |
US8629512B2 (en) | 2012-03-28 | 2014-01-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Gate stack of fin field effect transistor with slanted sidewalls |
CN103383961A (zh) * | 2012-05-03 | 2013-11-06 | 中芯国际集成电路制造(上海)有限公司 | FinFET结构及其制造方法 |
CN102945807B (zh) * | 2012-11-15 | 2015-11-25 | 京东方科技集团股份有限公司 | 一种薄膜晶体管的制备方法及薄膜晶体管 |
KR102017616B1 (ko) | 2013-01-02 | 2019-09-03 | 삼성전자주식회사 | 전계 효과 트랜지스터 |
US9831345B2 (en) | 2013-03-11 | 2017-11-28 | Taiwan Semiconductor Manufacturing Company, Ltd. | FinFET with rounded source/drain profile |
TWI644433B (zh) | 2013-03-13 | 2018-12-11 | 半導體能源研究所股份有限公司 | 半導體裝置 |
US8900934B2 (en) * | 2013-04-18 | 2014-12-02 | International Business Machines Corporation | FinFET devices containing merged epitaxial Fin-containing contact regions |
CN105531797A (zh) * | 2013-06-28 | 2016-04-27 | 英特尔公司 | 具有用于III-N外延的Si(100)晶片上的Si(111)平面的纳米结构和纳米特征 |
JP6570817B2 (ja) * | 2013-09-23 | 2019-09-04 | 株式会社半導体エネルギー研究所 | 半導体装置 |
WO2015047341A1 (en) * | 2013-09-27 | 2015-04-02 | Intel Corporation | Non-planar semiconductor devices having multi-layered compliant substrates |
TWI642186B (zh) * | 2013-12-18 | 2018-11-21 | 日商半導體能源研究所股份有限公司 | 半導體裝置 |
JPWO2016143653A1 (ja) * | 2015-03-06 | 2018-01-18 | スタンレー電気株式会社 | Iii族窒化物積層体、及び該積層体を有する発光素子 |
KR102310082B1 (ko) | 2015-04-27 | 2021-10-08 | 삼성전자주식회사 | 핀 바디 및 에피택시얼 막을 포함하는 반도체 소자 |
US10164097B2 (en) * | 2015-09-11 | 2018-12-25 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device and manufacturing method thereof |
US10411013B2 (en) | 2016-01-22 | 2019-09-10 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and memory device |
CN107026084B (zh) * | 2016-02-02 | 2020-03-31 | 中芯国际集成电路制造(上海)有限公司 | 半导体装置及其制造方法 |
JP2019050314A (ja) * | 2017-09-11 | 2019-03-28 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
US11145564B2 (en) * | 2018-06-29 | 2021-10-12 | Taiwan Semiconductor Manufacturing Co., Ltd. | Multi-layer passivation structure and method |
US10749036B2 (en) * | 2018-08-03 | 2020-08-18 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Oxide semiconductor thin film transistor having spaced channel and barrier strips and manufacturing method thereof |
US11367783B2 (en) | 2018-08-17 | 2022-06-21 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method of manufacturing a semiconductor device |
US10665590B2 (en) * | 2018-10-16 | 2020-05-26 | Globalfoundries Inc. | Wrap-around contact surrounding epitaxial regions of integrated circuit structures and method of forming same |
WO2024004431A1 (ja) * | 2022-06-29 | 2024-01-04 | ソニーセミコンダクタソリューションズ株式会社 | 半導体装置及びその製造方法、並びに電子機器 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0379081A (ja) * | 1989-08-22 | 1991-04-04 | Seiko Epson Corp | 薄膜トランジスタ |
JPH0685256A (ja) * | 1992-03-30 | 1994-03-25 | Samsung Electron Co Ltd | 三次元マルチチャンネル構造を有する薄膜トランジスタおよびその製造方法 |
JPH0878692A (ja) * | 1994-09-01 | 1996-03-22 | Nec Corp | Soi型半導体装置およびその製造方法 |
JPH1197691A (ja) * | 1997-09-18 | 1999-04-09 | Toshiba Corp | 薄膜トランジスタおよび接合構造 |
JP2003243415A (ja) * | 2002-02-18 | 2003-08-29 | Nec Corp | 半導体装置およびその製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0215675A (ja) * | 1988-07-01 | 1990-01-19 | Fujitsu Ltd | 電界効果トランジスタ及びその製造方法 |
US4946799A (en) * | 1988-07-08 | 1990-08-07 | Texas Instruments, Incorporated | Process for making high performance silicon-on-insulator transistor with body node to source node connection |
US20020011612A1 (en) * | 2000-07-31 | 2002-01-31 | Kabushiki Kaisha Toshiba | Semiconductor device and method for manufacturing the same |
US7358121B2 (en) * | 2002-08-23 | 2008-04-15 | Intel Corporation | Tri-gate devices and methods of fabrication |
US6720619B1 (en) * | 2002-12-13 | 2004-04-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor-on-insulator chip incorporating partially-depleted, fully-depleted, and multiple-gate devices |
US6867433B2 (en) * | 2003-04-30 | 2005-03-15 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor-on-insulator chip incorporating strained-channel partially-depleted, fully-depleted, and multiple-gate transistors |
US6909151B2 (en) * | 2003-06-27 | 2005-06-21 | Intel Corporation | Nonplanar device with stress incorporation layer and method of fabrication |
-
2004
- 2004-10-19 WO PCT/JP2004/015405 patent/WO2005038931A1/ja active Application Filing
- 2004-10-19 JP JP2005514825A patent/JP4865331B2/ja not_active Expired - Fee Related
- 2004-10-19 US US10/576,412 patent/US20070075372A1/en not_active Abandoned
-
2011
- 2011-10-13 JP JP2011225497A patent/JP5416186B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0379081A (ja) * | 1989-08-22 | 1991-04-04 | Seiko Epson Corp | 薄膜トランジスタ |
JPH0685256A (ja) * | 1992-03-30 | 1994-03-25 | Samsung Electron Co Ltd | 三次元マルチチャンネル構造を有する薄膜トランジスタおよびその製造方法 |
JPH0878692A (ja) * | 1994-09-01 | 1996-03-22 | Nec Corp | Soi型半導体装置およびその製造方法 |
JPH1197691A (ja) * | 1997-09-18 | 1999-04-09 | Toshiba Corp | 薄膜トランジスタおよび接合構造 |
JP2003243415A (ja) * | 2002-02-18 | 2003-08-29 | Nec Corp | 半導体装置およびその製造方法 |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7701018B2 (en) | 2004-03-19 | 2010-04-20 | Nec Corporation | Semiconductor device and method for manufacturing same |
US7989855B2 (en) | 2004-06-10 | 2011-08-02 | Nec Corporation | Semiconductor device including a deflected part |
US8486811B2 (en) | 2004-06-10 | 2013-07-16 | Nec Corporation | Semiconductor device and manufacturing process therefor |
JP2006191109A (ja) * | 2005-01-04 | 2006-07-20 | Samsung Electronics Co Ltd | ファセットチャンネルを有する半導体素子及びその製造方法 |
JP2006310718A (ja) * | 2005-04-29 | 2006-11-09 | Hynix Semiconductor Inc | メモリ素子のトランジスタ構造及びその製造方法 |
JP2012209572A (ja) * | 2005-04-29 | 2012-10-25 | Sk Hynix Inc | Dramメモリ素子のトランジスタ構造及びその製造方法 |
US8247294B2 (en) | 2005-06-07 | 2012-08-21 | Nec Corporation | Manufacturing process of fin-type field effect transistor and semiconductor |
US7859065B2 (en) | 2005-06-07 | 2010-12-28 | Nec Corporation | Fin-type field effect transistor and semiconductor device |
JP4718908B2 (ja) * | 2005-06-14 | 2011-07-06 | 株式会社東芝 | 半導体装置および半導体装置の製造方法 |
US8138031B2 (en) | 2005-06-14 | 2012-03-20 | Kabushiki Kaisha Toshiba | Semiconductor device and method of manufacturing semiconductor device |
JP2006351683A (ja) * | 2005-06-14 | 2006-12-28 | Toshiba Corp | 半導体装置および半導体装置の製造方法 |
JP2009512996A (ja) * | 2005-07-27 | 2009-03-26 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 仮想ボディ・コンタクト型トライゲート |
JP2007329474A (ja) * | 2006-06-06 | 2007-12-20 | Internatl Business Mach Corp <Ibm> | ハイブリッド・チャネル配向を有するcmosデバイスおよびファセット形成エピタキシを用いてハイブリッド・チャネル配向を有するcmosデバイを作製するための方法 |
US11239332B2 (en) | 2008-11-07 | 2022-02-01 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
US10665684B2 (en) | 2008-11-07 | 2020-05-26 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
US10411102B2 (en) | 2008-11-07 | 2019-09-10 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
JP2017130667A (ja) * | 2008-11-07 | 2017-07-27 | 株式会社半導体エネルギー研究所 | トランジスタ |
TWI420573B (zh) * | 2010-02-26 | 2013-12-21 | Taiwan Semiconductor Mfg | 積體電路結構的形成方法 |
US9666691B2 (en) | 2010-02-26 | 2017-05-30 | Taiwan Semiconductor Manufacturing Company, Ltd. | Epitaxy profile engineering for FinFETs |
US9842909B2 (en) | 2013-01-24 | 2017-12-12 | Samsung Electronics Co. Ltd. | Semiconductor device and fabricating method thereof |
JP2015035590A (ja) * | 2013-07-12 | 2015-02-19 | 株式会社半導体エネルギー研究所 | 半導体装置 |
US9691904B2 (en) | 2013-07-12 | 2017-06-27 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
US9419145B2 (en) | 2013-07-12 | 2016-08-16 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
CN104425264B (zh) * | 2013-08-20 | 2017-06-13 | 中芯国际集成电路制造(上海)有限公司 | 半导体结构的形成方法 |
CN104425264A (zh) * | 2013-08-20 | 2015-03-18 | 中芯国际集成电路制造(上海)有限公司 | 半导体结构的形成方法 |
US9806202B2 (en) | 2014-11-21 | 2017-10-31 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and memory device |
WO2017104505A1 (ja) * | 2015-12-18 | 2017-06-22 | 株式会社フローディア | メモリセル、不揮発性半導体記憶装置、および不揮発性半導体記憶装置の製造方法 |
JP2017112331A (ja) * | 2015-12-18 | 2017-06-22 | 株式会社フローディア | メモリセル、不揮発性半導体記憶装置、および不揮発性半導体記憶装置の製造方法 |
JP5982055B1 (ja) * | 2015-12-18 | 2016-08-31 | 株式会社フローディア | メモリセル、不揮発性半導体記憶装置、および不揮発性半導体記憶装置の製造方法 |
US11011530B2 (en) | 2015-12-18 | 2021-05-18 | Floadia Corporation | Memory cell, nonvolatile semiconductor storage device, and method for manufacturing nonvolatile semiconductor storage device |
US10373967B2 (en) | 2015-12-18 | 2019-08-06 | Floadia Corporation | Memory cell, nonvolatile semiconductor storage device, and method for manufacturing nonvolatile semiconductor storage device |
JP6069569B1 (ja) * | 2016-08-24 | 2017-02-01 | 株式会社フローディア | メモリセル、および不揮発性半導体記憶装置 |
JP2018032743A (ja) * | 2016-08-24 | 2018-03-01 | 株式会社フローディア | メモリセル、および不揮発性半導体記憶装置 |
JP2018160704A (ja) * | 2018-07-18 | 2018-10-11 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2022042639A (ja) * | 2020-09-03 | 2022-03-15 | 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 |
JP7385540B2 (ja) | 2020-09-03 | 2023-11-22 | 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 |
Also Published As
Publication number | Publication date |
---|---|
JP5416186B2 (ja) | 2014-02-12 |
JPWO2005038931A1 (ja) | 2007-02-08 |
US20070075372A1 (en) | 2007-04-05 |
JP4865331B2 (ja) | 2012-02-01 |
JP2012089841A (ja) | 2012-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4865331B2 (ja) | 半導体装置及び半導体装置の製造方法 | |
JP6211673B2 (ja) | トリゲート・デバイス及び製造方法 | |
EP2270868B1 (en) | Methods of fabrication of a nonplanar semiconductor device with partially or fully wrapped around gate electrode | |
US7714397B2 (en) | Tri-gate transistor device with stress incorporation layer and method of fabrication | |
US20080237655A1 (en) | Semiconductor apparatus and method for manufacturing same | |
WO2005022637A1 (ja) | フィン型電界効果トランジスタを有する半導体装置 | |
JP2009032955A (ja) | 半導体装置、およびその製造方法 | |
US20070069254A1 (en) | Multiple-gate MOS transistor using Si substrate and method of manufacturing the same | |
JP2005332911A (ja) | 半導体装置及びその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL 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): BW GH 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 IT 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 |
|
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: 2005514825 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007075372 Country of ref document: US Ref document number: 10576412 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10576412 Country of ref document: US |