WO2011024770A1 - 半導体装置、半導体装置を有する液晶表示装置、半導体装置の製造方法 - Google Patents
半導体装置、半導体装置を有する液晶表示装置、半導体装置の製造方法 Download PDFInfo
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- WO2011024770A1 WO2011024770A1 PCT/JP2010/064208 JP2010064208W WO2011024770A1 WO 2011024770 A1 WO2011024770 A1 WO 2011024770A1 JP 2010064208 W JP2010064208 W JP 2010064208W WO 2011024770 A1 WO2011024770 A1 WO 2011024770A1
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- electrode layer
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- oxide semiconductor
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 107
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 11
- 239000010408 film Substances 0.000 claims abstract description 152
- 239000010409 thin film Substances 0.000 claims abstract description 98
- 230000004888 barrier function Effects 0.000 claims abstract description 77
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000010949 copper Substances 0.000 claims abstract description 71
- 229910052802 copper Inorganic materials 0.000 claims abstract description 67
- 239000011777 magnesium Substances 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 19
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910003023 Mg-Al Inorganic materials 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 186
- 238000005530 etching Methods 0.000 description 15
- 239000000758 substrate Substances 0.000 description 15
- 239000011521 glass Substances 0.000 description 13
- 229910004298 SiO 2 Inorganic materials 0.000 description 10
- 239000011229 interlayer Substances 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910004205 SiNX Inorganic materials 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910020177 SiOF Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000002438 flame photometric detection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
- H01L23/53238—Additional layers associated with copper layers, e.g. adhesion, barrier, cladding layers
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- 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
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/45—Ohmic electrodes
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- 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
- H01L29/66742—Thin film unipolar transistors
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- 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
- H01L29/66969—Multistep manufacturing processes of devices having semiconductor bodies not comprising group 14 or group 13/15 materials
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- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78606—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device
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- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
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- G02F2201/501—Blocking layers, e.g. against migration of ions
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1222—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or crystalline structure of the active layer
- H01L27/1225—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or crystalline structure of the active layer with semiconductor materials not belonging to the group IV of the periodic table, e.g. InGaZnO
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- 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 the field of wiring films used for minute semiconductor devices, and more particularly to the technical field of electrode layers in contact with oxide semiconductors.
- Amorphous silicon can be formed at low temperatures and does not adversely affect other materials, but has the disadvantage of low mobility, and oxide semiconductors that can form high-mobility thin films on large-area substrates by low-temperature formation attract attention Has been.
- auxiliary film having a barrier property against diffusion and an adhesion property that increases the adhesion strength of the copper wiring between the copper thin film and the semiconductor or insulating film in contact with the copper thin film.
- the auxiliary film include a TiN film and a W film.
- the copper thin film is difficult to dry etch, and the wet etching method is generally used.
- the copper thin film etchant and the auxiliary film etchant are different, a wiring film having a two-layer structure of the auxiliary film and the copper thin film is used. It cannot be etched in a single etching step. Therefore, an auxiliary film that has barrier properties and adhesion and can be etched with the same etching solution as the copper thin film is required.
- the present invention was created to solve the above-mentioned disadvantages of the prior art, and an object of the present invention is to provide an electrode film having high adhesion and preventing copper atoms from diffusing into an oxide semiconductor or an oxide thin film. .
- the present invention provides a semiconductor element having an oxide semiconductor layer and an electrode layer in contact with the oxide semiconductor layer, wherein the electrode layer is in contact with the oxide semiconductor layer. It consists of a high adhesion barrier film and a copper thin film in contact with the high adhesion barrier film, and the high adhesion barrier film contains copper, magnesium, and aluminum, and contains copper, magnesium, and aluminum.
- the total number of atoms is 100 at%, magnesium is in the range of 0.5 at% to 5 at% and aluminum is in the range of 5 at% to 15 at%.
- the electrode layer has a source electrode layer and a drain electrode layer separated from each other, and the source electrode layer and the drain electrode layer are in contact with the source region and the drain region of the oxide semiconductor layer, respectively.
- the semiconductor device is a transistor in which a gate electrode layer is disposed in a channel region between the source region and the drain region with a gate insulating film interposed therebetween.
- an insulating film made of an oxide is disposed on the oxide semiconductor layer, and the source electrode layer and the drain electrode layer are disposed on a surface of the insulating film, and are formed on the source region and the drain region.
- a high adhesion barrier film of the source electrode layer and the drain electrode layer is disposed on an inner peripheral surface of a connection hole of the insulating film formed on the upper side.
- the present invention includes a semiconductor device, a pixel electrode, a liquid crystal disposed on the pixel electrode, and an upper electrode positioned on the liquid crystal, and the pixel electrode is electrically connected to the electrode layer. It is a liquid crystal display device.
- the present invention is a semiconductor element having an oxide semiconductor layer and an electrode layer in contact with the oxide semiconductor layer, the electrode layer having a high adhesion barrier film in contact with the oxide semiconductor layer, A copper thin film in contact with the high adhesion barrier film, wherein the high adhesion barrier film contains copper, magnesium and aluminum, and the total number of atoms of copper, magnesium and aluminum is 100 at%.
- magnesium is in a range of 0.5 at% to 5 at% and aluminum is in a range of 5 at% to 15 at%, and an oxide thin film is formed on a surface of the oxide semiconductor layer.
- the oxide thin film is partially removed to form a stopper layer made of the oxide thin film, the oxide semiconductor layer is exposed in the portion where the oxide thin film is removed, and the strike Forming the high adhesion barrier film in contact with the exposed surface of the oxide semiconductor layer on the par layer, the source region, and the drain region; and forming the copper thin film on the high adhesion barrier film.
- a manufacturing method of a semiconductor device formed to form the electrode layer According to the present invention, a gate insulating film is formed on a channel region between the source region and the drain region of the oxide semiconductor layer, and a gate electrode layer is disposed on the gate insulating film. In the method of manufacturing a semiconductor device, the high adhesion barrier film of the electrode layer is formed in contact with the source region and the drain region in a state where the source region and the drain region of the layer are exposed.
- the electrode film can be used as a source electrode or a drain electrode. Even when an oxide stopper layer is provided as an etching stopper, the stopper layer and the insulating film made of oxide have high adhesion and barrier properties, so that etching using the stopper layer can be performed.
- the copper thin film is also in contact with the interlayer insulating film and the gate insulating film through the high adhesion barrier film on the inner peripheral surface of the connection hole formed in the interlayer insulating film and the gate insulating film. There is no diffusion of copper atoms into it.
- the copper thin film and the high adhesion barrier film can be etched with the same etching solution.
- FIG. 5 shows a liquid crystal display device according to an embodiment of the present invention, and a cross-sectional view of the transistor 11 of the first example of the present invention is shown together with a liquid crystal display section.
- the transistor 11 will be described.
- an elongated gate electrode layer 32 is disposed on the surface of a glass substrate 31.
- a gate insulating film 33 is disposed at least in the width direction. Has been.
- An oxide semiconductor layer 34 is disposed on the gate insulating film 33, and the source electrode layer 51 and the drain are disposed at both ends in the width direction of the gate insulating film 33 in the oxide semiconductor layer 34 positioned on the gate electrode layer 32.
- An electrode layer 52 is formed.
- a recess 55 is provided between the source electrode layer 51 and the drain electrode layer 52, and the source electrode layer 51 and the drain electrode layer 52 are separated by the recess 55 so that different voltages can be applied.
- Reference numeral 36 denotes a stopper layer.
- the stopper layer 36 prevents the etching solution from contacting the oxide semiconductor layer 34.
- a protective film 41 is formed on the source electrode layer 51, the drain electrode layer 52, and the recess 55 therebetween, but the stopper layer 36 is located between the oxide semiconductor layer 34 and the protective film 41. is doing.
- a gate voltage is applied to the gate electrode layer 32 with a voltage applied between the source electrode layer 51 and the drain electrode layer 52, and the gate electrode layer 32 in the oxide semiconductor layer 34 is interposed through the gate insulating film 33.
- a channel layer of a conductivity type opposite to the conductivity type of the oxide semiconductor layer 34 (or a low-resistance channel layer of the same conductivity type) is formed in the facing portion, the source electrode layer 51 of the oxide semiconductor layer 34 is formed.
- the portion in contact with the drain electrode layer 52 and the portion in contact with the drain electrode layer 52 are connected with a low resistance by the channel layer 73 (or low resistance layer), and as a result, the source electrode layer 51 and the drain electrode layer 52 are electrically connected.
- the transistor 11 becomes conductive.
- the channel layer 73 (or the low resistance layer) disappears, and the source electrode layer 51 and the drain electrode layer 52 have a high resistance and are electrically separated.
- a pixel electrode 82 is disposed in the liquid crystal display region 14, and a liquid crystal 83 is disposed on the pixel electrode 82.
- An upper electrode 81 is positioned on the liquid crystal 83.
- the pixel electrode 82 is electrically connected to the source electrode layer 51 and the drain electrode layer 52, and voltage application to the pixel electrode 82 is started and ended when the transistor 11 is turned ON / OFF.
- the pixel electrode 82 is composed of a part of the wiring layer 42 connected to the drain electrode layer 52.
- the wiring layer 42 is a transparent conductive layer made of ITO, and the wiring layer 42 is formed on the glass substrate 31 similarly to the gate electrode layer 32, and is a wiring layer made of the same thin film as the thin film constituting the gate electrode layer 32. 84.
- a first conductive thin film is formed on a glass substrate 31 by a vacuum thin film forming method such as sputtering or vapor deposition, and the first conductive thin film is patterned to form a gate electrode layer 32.
- a vacuum thin film forming method such as sputtering or vapor deposition
- the first conductive thin film is patterned to form a gate electrode layer 32.
- a thin film such as a metal or polysilicon having high adhesion to glass can be used.
- Reference numeral 32 in FIG. 1A denotes a gate electrode layer formed on the glass substrate 31.
- the gate electrode layer 32 is formed by patterning, the glass substrate surface is exposed except for the portion where the gate electrode layer 32 is located, and the surfaces of the glass substrate 31 and the gate electrode layer 32 as shown in FIG. Then, a gate insulating film 33 such as SiO 2 or SiNx is formed. The gate insulating film 33 is patterned as necessary.
- an oxide semiconductor thin film is formed on the gate insulating film 33 and patterned to form an oxide semiconductor layer 34 composed of the patterned oxide semiconductor thin film, as shown in FIG. .
- an oxide insulating thin film 35 is formed over the surface of the oxide semiconductor layer 34 and the surface of the gate insulating film 33 exposed between the oxide semiconductor layers 34.
- the oxide insulating thin film 35 is patterned to form a stopper layer 36 made of an oxide insulating thin film.
- the oxide semiconductor layer 34 is provided with a source region 71 and a drain region 72 that are spaced from each other at both ends in the width direction of the gate electrode layer 32, and the stopper layer 36 is a source on the surface of the oxide semiconductor layer 34.
- the region 71 and the drain region 72 are exposed so as to cover the surface of the other part.
- An adhesion barrier film 37 is formed, and then, as shown in FIG. 3A, a copper thin film 38 is formed on the surface of the high adhesion barrier film 37, and the high adhesion barrier film 37 and the copper thin film 38 are formed.
- the electrode layer 40 is formed.
- oxygen gas is not introduced into the sputtering atmosphere, and the copper thin film 38 does not contain copper oxide, so that a low resistance copper thin film 38 is obtained.
- the high adhesion barrier film is a thin film made of Cu—Mg—Al, and the process of forming this high adhesion barrier film will be described.
- the surface of the stopper layer 36 and the source region 71 of the oxide semiconductor layer 34 are described. 2B is exposed to the inside of the sputtering apparatus, and a target made of Cu—Mg—Al alloy is sputtered to form sputtered particles.
- a highly adhesive barrier film 37 that contacts the surface of the stopper layer 36 and the exposed portions of the source region 71 and drain region 72 of the oxide semiconductor layer 34 is formed.
- the high adhesion barrier film 37 has high adhesion to the oxide, and the electrode layer 40 does not peel from the oxide semiconductor thin film or the oxide thin film. In addition, since the adhesion between the high adhesion barrier film 37 and the copper thin film 38 is high, the copper thin film 38 does not peel from the high adhesion barrier film 37.
- the high adhesion barrier film 37 is formed on the surface of the stopper layer 36 which is an oxide made of SiO 2 and the oxide semiconductor layer 34, and the copper thin film 38 is formed on the surface of the high adhesion barrier film 37. Yes. Therefore, the copper thin film 38 does not peel from the stopper layer 36 or the oxide semiconductor layer 34.
- the high adhesion barrier film 37 has a barrier function against copper atoms, copper atoms do not diffuse from the high adhesion barrier film 37 into the oxide semiconductor layer 34, and the copper thin film 38 and the oxide Since the high adhesion barrier film 37 is located between the semiconductor layers 34, the copper atoms in the copper thin film 38 are prevented from diffusing by the high adhesion barrier film 37, and the copper atoms into the oxide semiconductor layer 34 are Diffusion is prevented.
- a resist film is formed on the surface of the copper thin film 38, and the resist film is patterned. As shown in FIG. The resist film 39 is disposed at a position above the source region 71 and a position above the drain region 72.
- the copper thin film 38 exposed between the resist films 39 and the high adhesion barrier film 37 located immediately below the exposed portion of the copper thin film 38 are etched. Only the portion on the source region 71 and the portion on the drain region 72 that are etched by the resist film 39 remain, and the high adhesion barrier film remaining on the source region 71 as shown in FIG. 37 and the copper thin film 38 form a source electrode layer 51, and the high adhesion barrier film 37 and the copper thin film 38 remaining on the drain region 72 form a drain electrode layer 52.
- the source electrode layer 51 and the drain electrode layer 52 are separated from each other.
- a part of the source electrode layer 51 is located on one end of the gate electrode layer 32 and a part of the drain electrode layer 52 is located on the other end. Yes.
- the edge portion of the source electrode layer 51 and the edge portion of the drain electrode layer 52 are on the stopper layer 36.
- the transistor 11 is composed of the gate insulating film 33 and the gate / source / drain electrode layers 32, 51 and 52.
- a protective film 41 made of an insulating film such as SiNx or SiO 2 is formed.
- a connection hole 43 such as a via hole or a contact hole is formed in the protective film 41, and a wiring layer 42 in which the source electrode layer 51 and the drain electrode layer 52 exposed on the bottom surface of the connection hole 43 and other electrode layers are patterned.
- the liquid crystal 83 and the upper electrode 81 are arranged in a later step.
- the stopper layer 36 prevents the etching solution from contacting the oxide semiconductor layer 34.
- the stopper layer 36 is unnecessary because the oxide semiconductor layer 34 can contact the etching solution.
- FIG. 6C shows the transistor 12 which is a part of the liquid crystal display device and does not have the stopper layer 36.
- the liquid crystal display area is omitted.
- a patterned oxide semiconductor layer 34 is formed on the gate insulating film 33, a high adhesion barrier film 37 and a copper thin film 38 are stacked in this order, and the source of the oxide semiconductor layer 34 is obtained.
- the resist film 39 is disposed on the surface of the copper thin film 38 on the region 71 and the surface of the copper thin film 38 on the drain region 72, and the oxide semiconductor layer 34 is immersed in an etching solution that does not erode, thereby being highly adhered to the copper thin film 38.
- a portion of the conductive barrier film 37 that is not covered with the resist film 39 is removed by etching.
- the oxide semiconductor layer 34 and the etching solution are in contact with each other, but the oxide semiconductor layer 34 is not eroded, and after the resist film 39 is removed, the connection hole 43 is formed in the protective film 41 as shown in FIG.
- the transistor 12 without the stopper layer 36 can be operated. From the glass substrate 31 side, the gate electrode layer 32, the gate insulating film 33, the oxide semiconductor layer 34, and the source / drain electrode layers 51 and 52 are positioned in this order, which is a bottom gate type transistor. 7 may be a top gate transistor 13 as shown in FIG.
- an oxide semiconductor layer 34 is partially formed on a glass substrate 31, and a gate insulating film 33 is formed on the glass substrate 31 exposed between the oxide semiconductor layer 34 and the oxide semiconductor layer 34. Is formed.
- a source region 71 and a drain region 72 are formed at both ends on each oxide semiconductor layer 34, and a channel region 73 in which a channel layer is formed is formed between the source region 71 and the drain region 72. ing.
- a gate electrode layer 32 is disposed on a portion of the gate insulating film 33 on the channel region 73, and the gate insulating film 33 is a thin film made of an oxide so as to cover the gate electrode layer 32.
- An interlayer insulating layer 61 is disposed.
- a connection hole 43 is formed in a portion on the source region 71 and a portion on the drain region 72 of the gate insulating film 33 and the interlayer insulating layer 61.
- the high adhesion barrier film 37 and the copper thin film 38 are laminated in this order with the surface of the source region 71 and the surface of the drain region 72 exposed at the bottom of the connection hole 43.
- a layered electrode layer is formed.
- This electrode layer is patterned, and the high-adhesion barrier film 37 is in contact with the surface of the source region 71 and the drain electrode layer 52 is in contact with the surface of the drain region 72 and separated from the source electrode layer 51.
- a transistor When a gate voltage is applied to the gate electrode layer 32 in a state where a voltage is applied to the source electrode layer 51 and the drain electrode layer 52, a low-resistance channel of the same conductivity type as that of the channel region 73 or the opposite conductivity type in the channel region 73.
- a layer is formed, and the source region 71 and the drain region 72 are conducted.
- a protective film 41 is formed on the source electrode layer 51, the drain electrode layer 52, and the interlayer insulating layer 61 exposed therebetween.
- the copper thin film 38 is not in direct contact with the insulating film made of an oxide such as the interlayer insulating layer 61 or the oxide semiconductor layer 34, but in contact with the high adhesion barrier film 37.
- the copper thin film 38 does not peel off due to the high adhesion of the high adhesion barrier film 37, and the copper in the copper thin film 38 or the high adhesion barrier film 37 depends on the barrier properties of the high adhesion barrier film 37. The atoms are prevented from diffusing into the insulating film or the semiconductor region.
- Cu (copper) as a main component, Mg (magnesium) and Al (aluminum) are contained in a desired ratio, a target is prepared, the target is sputtered, and an insulating thin film made of an oxide (here, a SiO 2 thin film) ) And an oxide semiconductor thin film (here, IGZO film: InGaZnO), a high adhesion barrier film made of Cu—Mg—Al having the same composition as the target is formed, and pure copper is formed on the formed high adhesion barrier film.
- a thin film was formed to form an electrode layer composed of a high adhesion barrier film and a pure copper thin film.
- the adhesion and barrier properties of high adhesion barrier films with different addition ratios of Mg and Al were evaluated.
- the evaluation results for the oxide semiconductor are shown in Table 1, and the evaluation results for the insulating thin film are shown in Table 2.
- the insulating thin film made of SiO 2 was formed on the glass substrate, but the “SiH 4 -based SiO 2 film” was formed on the glass substrate by the CVD method using SiH 4 gas and N 2 O gas as raw materials. It is a SiO 2 film, and the “TEOS-based SiO 2 film” is a SiO 2 film formed by a CVD method using TEOS and O 2 gas.
- Mg content and Al content in Tables 1 and 2 indicate that the total number of Cu atoms, Mg atoms, and Al atoms in the target or high adhesion barrier film is 100 at%.
- the Mg atom number ratio (Xat%) and the Al atom number ratio (Yat%) are shown, and “-” indicates that the content is zero.
- the case where Cu, Mg and Al materials could be formed on the target was classified as “ ⁇ ”, and the case where the target could not be formed was classified as “X”.
- the evaluation in the “adhesion” column is “ ⁇ ” when the adhesive tape is applied to the surface of the pure copper thin film, peeled off, and peeled off at the interface between the adhesive tape and the pure copper thin film. Or the case of peeling at the interface between the electrode layer and the insulating thin film or oxide semiconductor was classified as “x”.
- the barrier property the presence or absence of diffusion of Cu atoms into the oxide semiconductor thin film or the insulating thin film made of oxide in contact with the high adhesion barrier film was measured by Auger electron spectroscopy. The case where it was not detected was classified as “ ⁇ ”, and the case where it was detected was classified as “x”.
- the high adhesion barrier film 37 which is a thin film made of Cu—Mg—Al in each of the above embodiments of the present invention, has a total number of Cu atoms, Mg atoms, and Al atoms of 100 at%.
- the conductive thin film has an Mg content of 0.5 at% or more and 5 at% or less and an Al content of 5 at% or more and 15 at% or less.
- the copper thin film 38 formed on the high adhesion barrier film 37 in contact with the high adhesion barrier film 37 has a low resistance containing copper at a content exceeding 50 at% when the total number of atoms is 100 at%. It is a conductive thin film.
- oxide semiconductor is InGaZnO
- the present invention is not limited thereto, and includes oxide semiconductors such as ZnO and SnO 2 .
- the insulating film made of an oxide with which the high adhesion barrier film 37 contacts is an SiO 2 film
- the present invention is not limited to this, and the insulating film made of an oxide.
- the film includes a thin film containing an oxide.
- Insulating films of the present invention include, for example, SiON films, SiOC films, SiOF films, Al 2 O 3 films, Ta 2 O 5 films, HfO 2 films, and ZrO 2 films.
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Abstract
Description
アモルファスシリコンは低温で形成することができ、他の材料に悪影響を与えないが、移動度が低いという欠点があり、低温形成で高移動度の薄膜が大面積基板に形成できる酸化物半導体が注目されている。
しかしながら銅薄膜は、酸化物半導体や酸化物薄膜との密着性が悪く、また、銅薄膜の構成物質である銅原子は酸化物半導体中や酸化物薄膜中に拡散し、信頼性低下の原因になる場合がある。
この場合、銅薄膜と、銅薄膜と接触する半導体や絶縁膜等との間に、拡散に対するバリア性や、銅配線の付着強度を増大させる密着性を有する補助膜を設ける必要がある。補助膜には、例えば、TiN膜やW膜等がある。
そのため、バリア性、密着性を有し、銅薄膜と同じエッチング液によってエッチングできる補助膜が求められている。
本発明は、前記電極層は、互いに分離されたソース電極層とドレイン電極層を有し、前記ソース電極層と前記ドレイン電極層は、前記酸化物半導体層のソース領域とドレイン領域とにそれぞれ接触し、前記ソース領域と前記ドレイン領域との間のチャネル領域には、ゲート絶縁膜を間に挟んでゲート電極層が配置されたトランジスタである半導体装置である。
本発明は、前記酸化物半導体層上には酸化物から成る絶縁膜が配置され、前記ソース電極層と前記ドレイン電極層は、前記絶縁膜の表面に配置され、前記ソース領域上と前記ドレイン領域上とに形成された前記絶縁膜の接続孔の内周面には、前記ソース電極層と前記ドレイン電極層の高密着性バリア膜が配置された半導体装置である。
本発明は、半導体装置と、画素電極と、前記画素電極上に配置された液晶と、前記液晶上に位置する上部電極とを有し、前記画素電極は前記電極層に電気的に接続された液晶表示装置である。
本発明は、酸化物半導体層と、前記酸化物半導体層と接触する電極層とを有する半導体素子であって、前記電極層は、前記酸化物半導体層に接触する高密着性バリア膜と、前記高密着性バリア膜に接触する銅薄膜とから成り、前記高密着性バリア膜は、銅と、マグネシウムと、アルミニウムとを含有し、銅と、マグネシウムと、アルミニウムとの合計原子数を100at%としたとき、マグネシウムは0.5at%以上5at%以下、アルミニウムは5at%以上15at%以下の範囲にされた半導体装置の製造方法であって、前記酸化物半導体層の表面に酸化物薄膜を形成し、前記酸化物薄膜を部分的に除去して前記酸化物薄膜から成るストッパー層を形成し、前記酸化物薄膜が除去された部分に前記酸化物半導体層を露出させ、前記ストッパー層上と前記ソース領域上と前記ドレイン領域上に、露出された前記酸化物半導体層の表面に接触する前記高密着性バリア膜を形成し、前記高密着性バリア膜上に前記銅薄膜を形成して前記電極層を形成する半導体装置の製造方法である。
本発明は、前記酸化物半導体層の前記ソース領域と前記ドレイン領域の間のチャネル領域上にゲート絶縁膜を形成し、前記ゲート絶縁膜上にゲート電極層を配置しておき、前記酸化物半導体層の前記ソース領域と前記ドレイン領域とを露出させた状態で、前記電極層の前記高密着性バリア膜を、前記ソース領域と前記ドレイン領域に接触させて形成する半導体装置の製造方法である。
エッチングストッパーとして酸化物から成るストッパー層を設けた場合でも、ストッパー層と、酸化物から成る絶縁膜に対する密着性とバリア性とが高いので、ストッパー層を用いたエッチングを行うことができる。
銅薄膜と高密着性バリア膜は同じエッチング液でエッチングすることができる。
31……ガラス基板
32……ゲート電極層
33……ゲート絶縁膜
34……酸化物半導体層
36……ストッパー層
37……高密着性バリア膜
38……銅薄膜
43……接続孔
51……ソース電極層
52……ドレイン電極層
61……層間絶縁層
71……ソース領域
72……ドレイン領域
73……チャネル領域
81……上部電極
82……画素電極
83……液晶
このトランジスタ11を説明すると、該トランジスタ11は、ガラス基板31の表面に細長のゲート電極層32が配置されており、ゲート電極層32上には、少なくとも幅方向に亘ってゲート絶縁膜33が配置されている。
ソース電極層51上と、ドレイン電極層52上と、その間の凹部55上には、保護膜41が形成されているが、酸化物半導体層34と保護膜41の間にはストッパー層36が位置している。
ゲート電圧の印加を停止すると、チャネル層73(又は低抵抗層)は消滅し、ソース電極層51とドレイン電極層52との間は高抵抗になり、電気的に分離される。
画素電極82はソース電極層51やドレイン電極層52と電気的に接続されており、トランジスタ11がON・OFFすることで、画素電極82への電圧印加の開始・終了が行われる。
このトランジスタ11は、先ず、ガラス基板31上に、スパッタ法や蒸着法等の真空薄膜形成方法によって第一の導電性薄膜を形成し、第一の導電性薄膜をパターニングしてゲート電極層32を形成する。第一の導電性薄膜には、ガラスとの密着性が高い金属やポリシリコン等の薄膜等を用いることができる。
パターニングしてゲート電極層32を形成すると、ゲート電極層32が位置する部分以外はガラス基板表面が露出しており、図1(b)に示すように、ガラス基板31とゲート電極層32の表面に、SiO2、SiNx等のゲート絶縁膜33を形成する。このゲート絶縁膜33は、必要に応じてパターニングする。
次いで、図2(a)に示すように、酸化物半導体層34の表面と、酸化物半導体層34の間に露出するゲート絶縁膜33の表面に亘って酸化物絶縁薄膜35を形成し、図2(b)に示すように、その酸化物絶縁薄膜35をパターニングして、酸化物絶縁薄膜から成るストッパー層36を形成する。
銅薄膜38の形成の際、酸素ガスはスパッタリング雰囲気中に導入せず、銅薄膜38中に酸化銅を含有させていないので、低抵抗の銅薄膜38を得ている。
高密着性バリア膜37は、SiO2から成る酸化物であるストッパー層36や、酸化物半導体層34の表面に形成されており、銅薄膜38は高密着性バリア膜37の表面に形成されている。従って、銅薄膜38は、ストッパー層36や酸化物半導体層34から剥離することはない。
高密着性バリア膜37と銅薄膜38とが形成された後、銅薄膜38表面にレジスト膜を形成し、レジスト膜をパターニングして、図3(b)に示すように、銅薄膜38表面の、ソース領域上71の位置とドレイン領域72の上の位置とに、レジスト膜39を配置する。
以上は、酸化物半導体層34を浸食するエッチング液を用いて銅薄膜38と高密着性バリア膜37とをエッチングしたため、ストッパー層36によってエッチング液を酸化物半導体層34に接触させないようにしていたが、酸化物半導体層34を浸食しないエッチング液を用いる場合は、酸化物半導体層34はエッチング液に接触できるのでストッパー層36は不要である。
図6(a)は、ゲート絶縁膜33上にパターニングした酸化物半導体層34を形成した後、高密着性バリア膜37と銅薄膜38をこの順序で積層形成し、酸化物半導体層34のソース領域71上の銅薄膜38表面とドレイン領域72上の銅薄膜38表面とにレジスト膜39を配置した状態であり、酸化物半導体層34を浸食しないエッチング液に浸漬し、銅薄膜38と高密着性バリア膜37のうちのレジスト膜39で覆われていない部分をエッチング除去する。
各酸化物半導体層34上の両端部には、それぞれソース領域71とドレイン領域72とが形成されており、ソース領域71とドレイン領域72の間は、チャネル層が形成されるチャネル領域73にされている。
ゲート絶縁膜33と層間絶縁層61のソース領域71上の部分とドレイン領域72上の部分とには、接続孔43が形成されている。層間絶縁層61上には、接続孔43の底部にソース領域71表面とドレイン領域72表面とが露出された状態で、高密着性バリア膜37と銅薄膜38がこの順序で積層形成され、二層構造の電極層が構成されている。
ソース電極層51とドレイン電極層52に電圧を印加した状態でゲート電極層32にゲート電圧を印加すると、チャネル領域73内に、チャネル領域73と同じ導電型又は反対の導電型の低抵抗のチャネル層が形成され、ソース領域71とドレイン領域72が導通する。
なお、ソース電極層51とドレイン電極層52と、その間に露出された層間絶縁層61上には保護膜41が形成されている。
MgとAlの添加割合が異なる高密着性バリア膜の密着性とバリア性について評価した。
酸化物半導体に対する評価結果を表1に記載し、絶縁性薄膜に対する評価結果を表2に記載する。
「密着性」の欄の評価は、純銅薄膜の表面に粘着テープを貼付し、粘着テープを引き剥がし、粘着テープが、粘着テープと純銅薄膜の界面で剥離した場合を“○”、電極層内部の破壊、又は電極層と絶縁性薄膜や酸化物半導体との界面で剥離した場合を“×”として分類した。
バリア性については、オージェ電子分光分析法によって、高密着性バリア膜と接触した酸化物半導体の薄膜、又は、酸化物から成る絶縁性薄膜中へのCu原子の拡散の有無を測定し、Cuが検出されない場合を“○”、検出された場合を“×”として分類した。
なお、上記酸化物半導体はInGaZnOであったが、本発明はそれに限定されるものではなく、ZnOやSnO2等の酸化物半導体も含まれる。
Claims (6)
- 酸化物半導体層と、
前記酸化物半導体層と接触する電極層とを有する半導体素子であって、
前記電極層は、前記酸化物半導体層に接触する高密着性バリア膜と、前記高密着性バリア膜に接触する銅薄膜とから成り、
前記高密着性バリア膜は、銅と、マグネシウムと、アルミニウムとを含有し、銅と、マグネシウムと、アルミニウムとの合計原子数を100at%としたとき、マグネシウムは0.5at%以上5at%以下、アルミニウムは5at%以上15at%以下の範囲にされた半導体装置。 - 前記電極層は、互いに分離されたソース電極層とドレイン電極層を有し、
前記ソース電極層と前記ドレイン電極層は、前記酸化物半導体層のソース領域とドレイン領域とにそれぞれ接触し、
前記ソース領域と前記ドレイン領域との間のチャネル領域には、ゲート絶縁膜を間に挟んでゲート電極層が配置されたトランジスタである請求項1記載の半導体装置。 - 前記酸化物半導体層上には酸化物から成る絶縁膜が配置され、前記ソース電極層と前記ドレイン電極層は、前記絶縁膜の表面に配置され、前記ソース領域上と前記ドレイン領域上とに形成された前記絶縁膜の接続孔の内周面には、前記ソース電極層と前記ドレイン電極層の高密着性バリア膜が配置された請求項2記載の半導体装置。
- 請求項1乃至請求項3のいずれか1項記載の半導体装置と、画素電極と、前記画素電極上に配置された液晶と、前記液晶上に位置する上部電極とを有し、
前記画素電極は前記電極層に電気的に接続された液晶表示装置。 - 酸化物半導体層と、
前記酸化物半導体層と接触する電極層とを有する半導体素子であって、
前記電極層は、前記酸化物半導体層に接触する高密着性バリア膜と、前記高密着性バリア膜に接触する銅薄膜とから成り、
前記高密着性バリア膜は、銅と、マグネシウムと、アルミニウムとを含有し、銅と、マグネシウムと、アルミニウムとの合計原子数を100at%としたとき、マグネシウムは0.5at%以上5at%以下、アルミニウムは5at%以上15at%以下の範囲にされた半導体装置の製造方法であって、
前記酸化物半導体層の表面に酸化物薄膜を形成し、前記酸化物薄膜を部分的に除去して前記酸化物薄膜から成るストッパー層を形成し、前記酸化物薄膜が除去された部分に前記酸化物半導体層を露出させ、
前記ストッパー層上と前記ソース領域上と前記ドレイン領域上に、
露出された前記酸化物半導体層の表面に接触する前記高密着性バリア膜を形成し、前記高密着性バリア膜上に前記銅薄膜を形成して前記電極層を形成する半導体装置の製造方法。 - 前記酸化物半導体層の前記ソース領域と前記ドレイン領域の間のチャネル領域上にゲート絶縁膜を形成し、
前記ゲート絶縁膜上にゲート電極層を配置しておき、
前記酸化物半導体層の前記ソース領域と前記ドレイン領域とを露出させた状態で、前記電極層の前記高密着性バリア膜を、前記ソース領域と前記ドレイン領域に接触させて形成する請求項5記載の半導体装置の製造方法。
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Application Number | Priority Date | Filing Date | Title |
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CN201080038623.8A CN102484137B (zh) | 2009-08-26 | 2010-08-24 | 半导体装置、具有半导体装置的液晶显示装置、半导体装置的制造方法 |
JP2011528782A JP4970622B2 (ja) | 2009-08-26 | 2010-08-24 | 半導体装置、半導体装置を有する液晶表示装置、半導体装置の製造方法 |
KR1020127003038A KR101175085B1 (ko) | 2009-08-26 | 2010-08-24 | 반도체 장치, 반도체 장치를 갖는 액정 표시 장치, 반도체 장치의 제조 방법 |
US13/402,120 US20120206685A1 (en) | 2009-08-26 | 2012-02-22 | Semiconductor device, liquid crystal display device having semiconductor device, and method for producing semiconductor device |
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JP4913267B2 (ja) * | 2009-10-27 | 2012-04-11 | 株式会社アルバック | 配線層、半導体装置、半導体装置を有する液晶表示装置 |
KR20130015170A (ko) * | 2011-08-02 | 2013-02-13 | 삼성디스플레이 주식회사 | 박막 트랜지스터 표시판 및 그 제조 방법 |
KR20130092463A (ko) * | 2012-02-09 | 2013-08-20 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치, 반도체 장치를 갖는 표시 장치, 반도체 장치를 갖는 전자 기기, 및 반도체 장치의 제작 방법 |
KR101364361B1 (ko) | 2011-08-31 | 2014-02-18 | 가부시키가이샤 재팬 디스프레이 | 표시 장치 및 표시 장치의 제조 방법 |
JP6768180B1 (ja) * | 2019-04-09 | 2020-10-14 | 株式会社アルバック | Cu合金ターゲット、配線膜、半導体装置、液晶表示装置 |
WO2020208904A1 (ja) * | 2019-04-09 | 2020-10-15 | 株式会社アルバック | Cu合金ターゲット、配線膜、半導体装置、液晶表示装置 |
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WO2020208904A1 (ja) * | 2019-04-09 | 2020-10-15 | 株式会社アルバック | Cu合金ターゲット、配線膜、半導体装置、液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2011024770A1 (ja) | 2013-01-31 |
TWI377673B (en) | 2012-11-21 |
JP4970622B2 (ja) | 2012-07-11 |
KR101175085B1 (ko) | 2012-08-21 |
TW201125121A (en) | 2011-07-16 |
KR20120048597A (ko) | 2012-05-15 |
US20120206685A1 (en) | 2012-08-16 |
CN102484137B (zh) | 2015-06-17 |
CN102484137A (zh) | 2012-05-30 |
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