WO2013027274A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- WO2013027274A1 WO2013027274A1 PCT/JP2011/069018 JP2011069018W WO2013027274A1 WO 2013027274 A1 WO2013027274 A1 WO 2013027274A1 JP 2011069018 W JP2011069018 W JP 2011069018W WO 2013027274 A1 WO2013027274 A1 WO 2013027274A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mca
- semiconductor device
- mim capacitor
- film
- mim
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 90
- 239000003990 capacitor Substances 0.000 claims abstract description 148
- 229910052751 metal Inorganic materials 0.000 claims description 93
- 239000002184 metal Substances 0.000 claims description 93
- 239000011229 interlayer Substances 0.000 claims description 29
- 239000000758 substrate Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 description 32
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 17
- 230000002093 peripheral effect Effects 0.000 description 15
- 229910000838 Al alloy Inorganic materials 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 10
- 239000010936 titanium Substances 0.000 description 10
- 229910052719 titanium Inorganic materials 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 238000002161 passivation Methods 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- XJCLWVXTCRQIDI-UHFFFAOYSA-N Sulfallate Chemical compound CCN(CC)C(=S)SCC(Cl)=C XJCLWVXTCRQIDI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L23/5222—Capacitive arrangements or effects of, or between wiring layers
- H01L23/5223—Capacitor integral with wiring layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L23/5222—Capacitive arrangements or effects of, or between wiring layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L23/528—Geometry or layout of the interconnection structure
- H01L23/5286—Arrangements of power or ground buses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
- H01L23/585—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries comprising conductive layers or plates or strips or rods or rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/01—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate comprising only passive thin-film or thick-film elements formed on a common insulating substrate
- H01L27/016—Thin-film circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/0203—Particular design considerations for integrated circuits
- H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/04—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 a semiconductor body
- H01L27/08—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 a semiconductor body including only semiconductor components of a single kind
- H01L27/0805—Capacitors only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/75—Electrodes comprising two or more layers, e.g. comprising a barrier layer and a metal layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/82—Electrodes with an enlarged surface, e.g. formed by texturisation
- H01L28/86—Electrodes with an enlarged surface, e.g. formed by texturisation having horizontal extensions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/82—Electrodes with an enlarged surface, e.g. formed by texturisation
-
- 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, and more particularly to a semiconductor device including an MIM capacitor.
- a semiconductor device including an analog front end (AFE) circuit is applied to process an analog signal of an image received by a solid-state imaging device or the like.
- AFE analog front end
- a parallel plate type MIM (Metal Insulator Metal) capacitor is formed to convert an analog signal into a digital signal.
- a parallel plate type MIM capacitor a plurality of plate-like upper electrodes are formed with a dielectric film interposed on a plate-like lower electrode.
- a guard ring is disposed between one upper electrode and another upper electrode adjacent to each other so as to surround the individual upper electrodes.
- Patent Documents 1 and 2 are examples of documents disclosing semiconductor devices having such MIM capacitors.
- the conventional semiconductor device has the following problems. As described above, in the conventional semiconductor device, the guard ring is disposed so as to surround the individual upper electrodes constituting the MIM capacitor. For this reason, there is a problem in that a leakage current is generated due to a difference in height between the potential of the MIM capacitor and the potential of the guard ring.
- an analog unit that processes an analog signal occupies a relatively large area in the semiconductor device (chip), and an MIM capacitor is relatively small in such an analog unit. Since it occupies a large area, it is one of the factors that hinder downsizing of semiconductor devices.
- the present invention has been made as part of its development, and an object thereof is to provide a semiconductor device capable of reducing leakage current and occupying an area of an MIM capacitor.
- a semiconductor device includes a semiconductor substrate having a main surface, a plurality of MIM capacitors, and a guard ring.
- the plurality of MIM capacitors are arranged in a predetermined region on the main surface side of the semiconductor substrate, and each include a lower electrode, a dielectric film, and an upper electrode.
- the guard ring is disposed so as to surround the plurality of MIM capacitors.
- one MIM capacitor and another MIM capacitor adjacent to each other are arranged with a predetermined interval between one MIM capacitor and another MIM capacitor without interposing a guard ring.
- the guard ring is arranged outside the MIM capacitor located on the outermost side among the plurality of arranged MIM capacitors at the same interval as the predetermined interval.
- the semiconductor device According to the semiconductor device according to the embodiment of the present invention, it is possible to reduce the leakage current and the area occupied by the MIM capacitor.
- FIG. 4 is a partial plan view showing a part of the layout of the semiconductor device to which the MIM capacitor is applied in the embodiment.
- FIG. FIG. 3 is a partially enlarged plan view showing an MIM capacitor in a dotted frame A shown in FIG. 2 in the same embodiment.
- FIG. 3 is a partial cross-sectional perspective view schematically showing the basic structure of an MIM capacitor in the same embodiment.
- FIG. 5 is a cross-sectional view taken along a cross-sectional line corresponding to the cross-sectional line VV shown in FIG. 4 in the embodiment.
- FIG. 10 is a cross-sectional view showing a step of the method of manufacturing a semiconductor device in the embodiment.
- FIG. 10 is a cross-sectional view showing a step performed after the step shown in FIG. 9 in the same embodiment.
- FIG. 11 is a cross-sectional view showing a step performed after the step shown in FIG. 10 in the same embodiment.
- FIG. 12 is a cross-sectional view showing a step performed after the step shown in FIG. 11 in the same embodiment.
- FIG. 13 is a cross-sectional view showing a step performed after the step shown in FIG. 12 in the same embodiment.
- FIG. 14 is a cross-sectional view showing a step performed after the step shown in FIG. 13 in the same embodiment.
- FIG. 15 is a cross-sectional view showing a step performed after the step shown in FIG. 14 in the same embodiment.
- FIG. 16 is a cross-sectional view showing a step performed after the step shown in FIG. 15 in the same embodiment.
- It is sectional drawing of the semiconductor device which concerns on a comparative example. It is a top view which shows the upper electrode of the MIM capacitor of the semiconductor device which concerns on a comparative example. It is a top view which shows the lower electrode of the MIM capacitor of the semiconductor device which concerns on a comparative example.
- FIG. 23 is a cross sectional view taken along a cross sectional line corresponding to a cross sectional line XXIII-XXIII shown in FIG. 22 in the embodiment.
- FIG. 23 is a fragmentary top view which shows the plane pattern of a lower electrode.
- it is a fragmentary top view which shows the plane pattern of an upper electrode.
- it is a fragmentary top view which shows the plane pattern of a metal film.
- it is a top view which shows the plane pattern of the MIM capacitor of the semiconductor device which concerns on a 1st modification.
- it is a top view which shows the plane pattern of the MIM capacitor of the semiconductor device which concerns on a 2nd modification.
- it is a top view which shows the lower electrode of the semiconductor device which concerns on a 2nd modification.
- it is a top view which shows the metal film of the semiconductor device which concerns on a 2nd modification.
- it is a top view which shows the planar pattern of the MIM capacitor of the semiconductor device which concerns on a 3rd modification.
- Embodiment 1 A semiconductor device including the MIM capacitor according to the first embodiment of the present invention will be described. First, a digital camera will be briefly described as an example of an electronic apparatus to which the semiconductor device is applied.
- the light of the subject collected by the lens LEZ is received by an image sensor RL such as a CCD (Charge Coupled Device), for example, and a predetermined analog signal is provided for each pixel. It is converted into an electrical signal. The converted electrical signal is input to the analog front end circuit AFE as image information and converted into a digital signal.
- an image sensor RL such as a CCD (Charge Coupled Device), for example
- a predetermined analog signal is provided for each pixel. It is converted into an electrical signal.
- the converted electrical signal is input to the analog front end circuit AFE as image information and converted into a digital signal.
- the image information converted into the digital signal is input to the image sensor processor ISP and subjected to predetermined image processing, for example, processing such as recording on a designated recording medium, It is displayed on a display (not shown).
- the digital camera DC is provided with a power supply circuit that operates the digital camera DC, a circuit that controls a motor that drives a lens and the like, and a circuit that controls the strobe to emit light (all not shown).
- FIG. 2 shows a part of a planar layout of the semiconductor device SD including the MIM capacitor MCA
- FIG. 3 shows a partly enlarged plan view of a part of the MMI capacitor MCA and its periphery.
- the MIM capacitor MCA is used in, for example, a 16-bit analog-digital conversion circuit unit. In the analog-digital conversion circuit section, the area ratio occupied by the MIM capacitor MCA is relatively high.
- an MIM capacitor used in a semiconductor device having a multilayer wiring structure for example, a parallel plate type MIM capacitor disposed between a third-layer metal wiring and a fourth-layer metal wiring is taken as an example. I will give you a description.
- the metal film ME3 made of the same layer as the metal film M3 that becomes the third-layer metal wiring becomes the flat lower electrode LEL.
- a flat upper electrode UEL is formed on the lower electrode LEL with a dielectric film DEC interposed therebetween.
- the lower electrode LEL, the dielectric film DEC, and the upper electrode UEL constitute an MIM capacitor MCA.
- An interlayer insulating film IL2 is formed so as to cover the MIM capacitor MCA, and a metal film ME4 made of the same layer as the metal film M4 serving as the fourth-layer metal wiring is formed on the interlayer insulating film IL2.
- FIG. 6 shows a planar pattern of the lower electrode LEL.
- the lower electrode LEL is arranged so as to be opposed to a plurality of patterns of the upper electrode UEL described later by one pattern.
- a titanium nitride film TN1 having a thickness of about 20 nm is formed.
- An aluminum alloy film AC1 containing about 300 nm of aluminum and copper is formed so as to be in contact with the surface of the titanium nitride film TN1.
- a titanium film T1 having a thickness of about 2.5 nm is formed so as to be in contact with the surface of the aluminum alloy film AC1.
- a titanium nitride film TN2 having a thickness of about 60 nm is formed so as to be in contact with the surface of the titanium film T1.
- the titanium film T1 and the titanium nitride film TN2 are shown as one layer (film) for simplification.
- a dielectric film DEC is formed so as to be in contact with the surface of the titanium nitride film TN2.
- the dielectric film DEC is formed of a plasma nitride film having a film thickness of about 50 nm, for example.
- the planar pattern of the dielectric film DEC is formed in the same pattern as the planar pattern of the lower electrode ELE.
- the upper electrode UEL is formed so as to be in contact with the surface of the dielectric film DEC.
- the upper electrode UEL is made of, for example, a titanium nitride film having a thickness of about 50 nm.
- FIG. 7 shows a planar pattern of the upper electrode UEL. As shown in FIG. 7, a plurality of upper electrodes UEL patterned in a square are arranged in a matrix (array) so as to face the lower electrode LEL.
- the length of one side of one upper electrode UEL is, for example, 10 ⁇ m, and a capacitor having a capacitance of about 0.14 pF is configured by one upper electrode UEL and a portion of the lower electrode LEL facing the upper electrode UEL. Is done.
- a predetermined number of square upper electrodes UEL are arranged so as to have a required capacity in the design circuit.
- planar pattern of the MIM capacitor MCA corresponds to the planar pattern of the upper electrode UEL. That the planar pattern of the upper electrode UEL is a square does not intend a geometrical (mathematical) square, but includes a manufacturing error. Further, as the upper electrode UEL, in addition to the titanium nitride film, for example, an aluminum alloy film or the like may be used similarly to the metal layer ME3.
- a guard ring GR is arranged outside the upper electrode UEL located on the outermost periphery so as to surround the upper electrode UEL arranged in a matrix.
- the guard ring GR is formed from a titanium nitride film made of the same layer as the upper electrode UEL.
- One upper electrode UEL and the other upper electrode UEL adjacent to each other have the same distance D1 (for example, about 1) without interposing a guard ring between the one upper electrode UEL and the other upper electrode UEL. .About 6 .mu.m).
- the upper electrode UEL located on the outermost periphery and the guard ring GR located on the outer side thereof are arranged at the same interval as the interval D1. That is, each of the plurality of upper electrodes UEL including the upper electrode UEL located at the outermost periphery is set to the same distance D1 from the adjacent pattern (upper electrode UEL or guard ring GR).
- an interlayer insulating film IL2 is formed so as to cover the MIM capacitor MCA.
- a metal film ME4 made of the same layer as the metal film M4 to be the fourth-layer metal wiring is formed so as to be in contact with the surface of the interlayer insulating film IL2.
- a titanium nitride film TN1 having a film thickness of about 50 nm is formed.
- An aluminum alloy film AC1 containing about 1000 nm of aluminum and copper is formed so as to be in contact with the surface of the titanium nitride film TN1.
- a titanium film T1 having a thickness of about 5 nm is formed in contact with the surface of the aluminum alloy film AC1.
- a titanium nitride film TN2 having a thickness of about 20 nm is formed so as to be in contact with the surface of the titanium film T1.
- the titanium film T1 and the titanium nitride film TN2 are shown as one layer (film) for simplification.
- FIG. 8 shows a planar pattern of the metal film ME4.
- a plurality of metal films ME4 patterned in a substantially square shape are arranged to face each of the plurality of upper electrodes UEL of the MIM capacitor MCA (see FIG. 4).
- Each metal film ME4 is electrically connected to the adjacent metal film ME4 at the center of each side.
- an outer peripheral metal film MG4 made of the same layer as the metal film M4 serving as the fourth-layer metal wiring is formed so as to surround the plurality of metal films ME4.
- the outer peripheral metal film MG4 and the metal film ME4 are electrically separated.
- a via hole VHU reaching the upper electrode UEL is formed in the interlayer insulating film IL2, and a via VU is formed in the via hole VHU.
- the upper electrode UEL and the metal film ME4 facing each other are electrically connected via the via VU, and a plurality of MIM capacitors MCA are connected in parallel via the metal film ME4, so that the MIM capacitor MCA having a desired capacity is obtained. Is configured.
- a via hole VHG reaching the guard ring GR is formed, and a via VG is formed in the via hole VHG.
- the guard ring GR is electrically connected to the outer peripheral metal film MG4 through the via VG.
- a via hole VHL reaching the lower electrode LEL is formed in the interlayer insulating film IL2, and the via VL is formed in the via hole VHL.
- the lower electrode LEL is electrically connected to the outer peripheral metal film MG4 through the via VL.
- An insulating film SOH such as a silicon oxide film is formed so as to cover the metal film ME4 and the outer peripheral metal film MG4.
- a passivation film PAP such as a silicon nitride film is formed in contact with the surface of the insulating film SOH.
- the main part of the semiconductor device including the MIM capacitor MCA is configured as described above.
- a method for manufacturing a semiconductor device including the above-described MIM capacitor will be described.
- a predetermined semiconductor element such as a transistor is formed in a predetermined element formation region on the main surface of the semiconductor substrate.
- An interlayer insulating film is formed so as to cover the semiconductor element, and metal wiring is formed on the interlayer insulating film.
- the third-layer interlayer insulating film covering the second-layer metal wiring is thus formed, as shown in FIG. 9, the third-layer metal is in contact with the surface of the interlayer insulating film IL1.
- a metal film M3 to be a wiring is formed.
- a titanium nitride film TN1 (film thickness of about 20 nm), an aluminum alloy film AC1 (film thickness of about 300 nm), a titanium film T1 (film thickness of about 2.5 nm), and a titanium nitride film TN2 (film thickness of about 60 nm). ) are sequentially formed.
- a dielectric film DEC (thickness: about 50 nm) made of a plasma nitride film is formed by, for example, a plasma CVD method so as to be in contact with the surface of the metal film M3.
- a titanium nitride film UTN (film thickness of about 50 nm) serving as an upper electrode is formed so as to be in contact with the surface of the dielectric film DEC.
- a predetermined photolithography process is performed to form a resist pattern (not shown) for patterning the upper electrode and guard ring of the MIM capacitor on the titanium nitride film UTN.
- the titanium nitride film UTN is etched using the resist pattern as a mask. Thereafter, the resist pattern is removed.
- the upper electrode UEL and the guard ring GR are formed as shown in FIG.
- each of the plurality of upper electrodes UEL is set to the same distance D1 from the adjacent pattern (upper electrode UEL or guard ring GR), so that the cross-sectional shape is tapered.
- the formation of the upper electrode UEL is suppressed.
- the cross-sectional shape of each of the plurality of upper electrodes UEL becomes a desired cross-sectional shape, and variation in capacitance as an MIM capacitor is suppressed.
- a silicon oxynitride film (not shown) having a film thickness of about 50 nm is formed as an antireflection film (BARL: Bottom Anti Reflective Layer) so as to cover the metal film M3 and the like.
- BARL Bottom Anti Reflective Layer
- a predetermined photolithography process is performed to form a resist pattern (not shown) for patterning the lower electrode on the metal film M3.
- the metal film M3 is etched using the resist pattern as a mask. Thereafter, the resist pattern is removed.
- the lower electrode LEL is formed as shown in FIG.
- One MIM capacitor MCA is formed by one upper electrode UEL, a portion of the dielectric film DEC and a portion of the lower electrode LEL that are respectively located immediately below the upper electrode UEL.
- a fourth-layer interlayer insulating film IL2 is formed so as to cover the MIM capacitor MCA.
- a resist pattern (not shown) for forming vias in the interlayer insulating film IL2 is formed.
- the interlayer insulating film IL2 is etched to form a via hole VHU reaching the upper electrode UEL, a via hole VG reaching the guard ring GR, and a via hole VHL reaching the lower electrode LEL (See FIG. 14).
- a titanium film, a titanium nitride film, and a tungsten film are formed on the surface of the interlayer insulating film IL2 so as to fill the via holes VHU, VHG, and VHL.
- CMP chemical mechanical polishing
- a via VU electrically connected to the upper electrode UEL is formed in the via hole VHU.
- a via VG electrically connected to the guard ring GR is formed in the via hole VHG.
- a via VL that is electrically connected to the lower electrode LEL is formed in the via hole VHL.
- a metal film M4 serving as a fourth-layer metal wiring is formed so as to be in contact with the surface of the interlayer insulating film IL2.
- a titanium nitride film TN1 film thickness of about 20 nm
- an aluminum alloy film AC1 film thickness of about 300 nm
- a titanium film T1 film thickness of about 2.5 nm
- a titanium nitride film TN2 film thickness of about 60 nm).
- a silicon oxynitride film (not shown) having a film thickness of about 50 nm is formed as BARL so as to cover the metal film M4 and the like.
- a resist pattern (not shown) for patterning a metal film electrically connected to the MIM capacitor MCA or the guard ring GR is formed on the metal film M4.
- the metal film M4 is etched using the resist pattern as a mask. Thereafter, the resist pattern is removed.
- a metal film ME4 electrically connected to the upper electrode UEL of the MIM capacitor MCA via the via VU is formed.
- an outer peripheral metal film MG4 that is electrically connected to the guard ring GR through the via VG is formed.
- the outer peripheral metal film MG4 is electrically connected to the lower electrode LEL of the MIM capacitor MCA via the via VL.
- an insulating film SOH such as a silicon oxide film (see FIG. 4) is formed so as to cover the metal film ME4 and the outer peripheral metal film MG4 by, for example, a high-density plasma method.
- a passivation film PAP such as a silicon nitride film (see FIG. 4) is formed so as to cover the insulating film.
- the main part of the semiconductor device including the MIM capacitor is formed.
- the guard ring GR is disposed only outside the upper electrode UEL located on the outermost periphery so as to surround the plurality of upper electrodes UEL, so that the guard ring surrounds each upper electrode UEL.
- the leakage current can be reduced and the area occupied by the MIM capacitor can be reduced. This will be described.
- the upper electrode CUEL is formed on the lower electrode CLEL with the dielectric film CDEC interposed therebetween.
- the lower electrode CLEL, the dielectric film CDEC, and the upper electrode CUEL constitute an MIM capacitor CMCA.
- An interlayer insulating film CIL2 is formed so as to cover the MIM capacitor CMCA, and a metal film CME4 is formed on the interlayer insulating film CIL2.
- a planar pattern of the upper electrode CUEL is shown in FIG. 18, and a planar pattern of the lower electrode CLEL is shown in FIG. Further, a planar pattern of the metal film CME4 is shown in FIG.
- a guard ring CGR is arranged so as to surround each of the plurality of square upper electrodes CUEL arranged in a matrix.
- the lower electrode CLEL shown in FIG. 19 is arranged so as to face the pattern of the upper electrode CUEL and the guard ring CGR by one pattern.
- the upper metal film CME4 shown in FIG. 20 is disposed so as to oppose each of the MIM capacitor CMCA upper electrode CUEL, and the outer peripheral metal film CMG4 is disposed so as to oppose the guard ring CGR.
- the guard ring CGR In order to suppress noise from the outside, the guard ring CGR is fixed at a constant potential. If there is a potential difference between the potential of the guard ring CGR and the potential of the MIM capacitor CMCA, a leakage current is generated. For example, when the guard ring CGR is fixed to the ground potential and the potential of the MIM capacitor CMCA is higher than the ground potential, a leakage current is generated from the MIM capacitor CMCA to the guard ring CGR.
- the guard ring CGR is disposed so as to surround each of the plurality of upper electrodes CUEL, for example, a leakage current (line component leakage) easily flows from the MIM capacitor CMCA to the guard ring CGR. Current) is assumed. Further, since such a guard ring CGR is arranged, there is a problem that the occupied area of the MIM capacitor CMCA cannot be easily reduced.
- the guard ring GR is not arranged so as to surround each upper electrode UEL, but so as to surround a plurality of upper electrodes UEL.
- the outermost electrode UEL located on the outermost periphery is disposed only outside.
- the total extension of the guard ring GR is significantly shortened as compared with the semiconductor device according to the comparative example. That is, the line component is reduced as the guard ring GR.
- the leakage current between the MIM capacitor and the guard ring GR such as the leakage current from the MIM capacitor to the guard ring GR, can be greatly reduced, and the time-dependent dielectric breakdown (TDDB: Time Dependent Dielectric Breakdown), etc. Can be ensured.
- TDDB Time Dependent Dielectric Breakdown
- the guard ring is not disposed so as to surround the individual upper electrodes UEL, the distance between the individual upper electrodes UEL can be reduced accordingly. As a result, the area occupied by the MIM capacitor MCA can be reduced.
- a guard ring GR is disposed outside the upper electrode UEL located on the outermost periphery. Moreover, the gap between the guard ring GR and the upper electrode UEL located on the outermost periphery is set to be the same as the gap between the upper electrodes UEL located inside and adjacent to each other.
- the upper electrode when the upper electrode is patterned by a predetermined photoengraving process and etching process, it is suppressed that the finished cross-sectional shape of the upper electrode located on the outermost periphery becomes a tapered shape, and the upper part located on the outermost periphery.
- An upper electrode having a desired dimension is formed by the electrode UEL and the upper electrode UEL located inside. As a result, variation in capacitance as the MIM capacitor MCA is suppressed, and a highly accurate MIM capacitor can be obtained.
- FIG. 21 is a graph showing the evaluation results of leakage current with the horizontal axis representing leakage current and the vertical axis representing cumulative frequency.
- a graph S1 is an evaluation result of the semiconductor device according to the above-described embodiment
- a graph S2 is an evaluation result of the semiconductor device according to the above-described comparative example.
- Graph S3 is an evaluation result of a semiconductor device in which a guard ring is arranged so as to surround each upper electrode UEL and a dielectric film is patterned corresponding to the pattern of the upper electrode as another comparative example. .
- the semiconductor device (graph S1) according to the present embodiment has a leakage component that is smaller than that of the semiconductor device according to the comparative example (graph S2) because the line component due to the internal guard ring is eliminated. It was found that the current was reduced by about one third. Further, when comparing the graph S1 and the graph S3, the semiconductor device (graph S1) according to the present embodiment has a leakage compared to the semiconductor device (graph S3) according to another comparative example in which the dielectric film is patterned. It has been found that the current is reduced to about an order of magnitude. Further, it was found that the semiconductor device (graph S3) according to another comparative example does not satisfy the target specification. As described above, it has been proved that the leakage current of the MIM capacitor can be significantly reduced in the semiconductor device according to the present embodiment as compared with the semiconductor device according to the comparative example or another comparative example.
- Embodiment 2 In the semiconductor device described above, the MIM capacitor including the square upper electrode having a side length of about 10 ⁇ m as the upper electrode of one MIM capacitor has been described as an example. In this case, the capacitance per MIM capacitor is, for example, 0.14 pF. Depending on the electronic device to which the semiconductor device is applied, a device having a larger capacity may be required.
- an MIM capacitor having a capacitance (1.4 pF) that is 10 times the capacitance per MIM capacitor an MIM capacitor having a square upper electrode with a side length of about 32 ⁇ m will be described as an example. .
- the lower electrode LEL is formed by the metal film ME3.
- An upper electrode UEL and a guard ring GR are formed on the lower electrode LEL with a dielectric film DEC interposed therebetween.
- the lower electrode LEL, the dielectric film DEC, and the upper electrode UEL constitute an MIM capacitor MCA.
- An interlayer insulating film IL2 is formed so as to cover the MIM capacitor MCA, and a metal film ME4 and an outer peripheral metal film MG4 are formed on the interlayer insulating film IL2.
- a planar pattern of the lower electrode LEL is shown in FIG.
- a planar pattern of the upper electrode UEL and the guard ring GR is shown in FIG.
- FIG. 26 shows a planar pattern of the metal film ME4 and the outer peripheral metal film.
- the structure is the same as that of the semiconductor device manufacturing method (see FIGS. 9 to 16) described above. For this reason, the same reference numerals are given to the same members as those of the semiconductor device described above, and the description thereof will not be repeated.
- the guard ring GR is disposed only outside the upper electrode UEL located on the outermost periphery so as to surround the plurality of upper electrodes UEL.
- the leakage current is reduced as compared with the case of the semiconductor device (comparative example) in which the guard ring is arranged so as to surround each upper electrode UEL.
- the area occupied by the MIM capacitor can be reduced.
- an MIM capacitor having a capacitance (1.4 pF) that is ten times the capacitance (0.14 pF) of one MIM capacitor described in the first embodiment is taken as an example.
- the length of one side of one MIM capacitor may be a square upper electrode of about 100 ⁇ m.
- the via is formed by performing a chemical mechanical polishing process on a tungsten film or the like formed on the surface of the interlayer insulating film so as to fill the via hole. For this reason, the flatness by the chemical mechanical polishing process is required for the flattening of the interlayer insulating film.
- an MIM capacitor formed in one semiconductor device for example, an MIM capacitor having an upper electrode size of 10 ⁇ m ⁇ 10 ⁇ m is formed in a certain circuit block, and an upper electrode is formed in another circuit block. MIM capacitors having a size of 100 ⁇ m ⁇ 100 ⁇ m may be formed. In a single semiconductor device, MIM capacitors (of different sizes) (if the required specifications (leakage current, circuit block area, etc.) are satisfied for each circuit) Upper electrode) may be mixed.
- the guard ring GR is disposed outside the MIM capacitor MCA located on the outermost periphery so as to surround the plurality of MIM capacitors MCA (FIGS. 7 and 25, etc.). reference). From the viewpoint of suppressing the leakage current (line component) caused by the potential difference between the MIM capacitor MCA and the guard ring GR, it is desirable that the guard ring GR has a shorter length.
- the upper electrode UEL is arranged in a matrix (or array) so that the number of rows and the number of columns are the same. It is desirable to make it.
- the overall planar pattern (contour pattern) of the plurality of upper electrodes UEL arranged substantially square the length of the guard ring GR surrounding the plurality of upper electrodes UEL can be minimized. .
- the planar pattern of the upper electrode of one MIM capacitor is rectangular, it is desirable to arrange the entire planar pattern of the plurality of upper electrodes to be close to a square.
- the number of MIM capacitors arranged with the long sides facing each other is made larger than the number of MIM capacitors arranged with the short sides facing each other.
- the entire planar pattern of the plurality of upper electrodes UEL can be made closer to a square.
- the length of the guard ring GR can be further shortened by bringing the entire planar pattern closer to a square.
- FIG. 29 shows a plane pattern of the lower electrode LEL in the case of this MIM capacitor
- FIG. 30 shows a plane pattern of the metal film ME4 and the outer peripheral metal film MG4.
- the lower electrode LEL shown in FIG. 29 is arranged to face the plurality of upper electrodes UEL by one pattern.
- the metal film ME4 illustrated in FIG. 30 is disposed to face each of the plurality of upper electrodes UEL
- the outer peripheral metal film MG4 is disposed to face the guard ring GR.
- the overall planar pattern of the lower electrode may be an annular (or donut-shaped) planar pattern as shown in FIG.
- the guard ring GR is also arranged inside the upper electrode UEL in order to ensure the patterning accuracy of the upper electrode.
- the length of the guard ring can be somewhat shortened compared to the case where the upper electrodes UEL are arranged in a row, which can contribute to the reduction of leakage current.
- the case where the MIM capacitor is disposed between the third-layer metal wiring and the fourth-layer metal wiring has been described as an example, but the position where the MIM capacitor is disposed is described. Is not limited to between the third-layer metal wiring and the fourth-layer metal wiring.
- a NIN capacitor may be disposed between the fifth-layer metal wiring and the fourth-layer metal wiring below it.
- an MIM capacitor may be disposed between the sixth-layer metal wiring and the fifth-layer metal wiring therebelow.
- the aluminum alloy film AC1 when forming the aluminum alloy film AC1 to be a part of the lower electrode, the aluminum alloy film AC1 may be reflowed by holding the semiconductor substrate on which the aluminum alloy film is formed at a predetermined temperature. Good. By reflowing the aluminum alloy film AC1, the surface of the aluminum alloy film AC1 is flattened, thereby suppressing variations in film thickness of each predetermined film constituting each MIM capacitor MCA, and consequently, variations in capacitance of the MIM capacitor MCA. can do.
- an electronic device to which a semiconductor device including a MIM capacitor is applied a digital camera is given as an example.
- an electronic device to which the semiconductor device is applied is not limited to a digital camera, and may be another electronic device.
- the present invention is effectively used for a semiconductor device provided with an MIM capacitor.
- SUB semiconductor substrate IL1 interlayer insulation film, M3 metal film, ME3 metal film, TN1 titanium nitride film, AC1 aluminum alloy film, T1 titanium film, TN2 titanium nitride film, LEL lower electrode, DEC dielectric film, UEL upper electrode , UTN titanium nitride film, GR guard ring, IL2 interlayer insulating film, VHU via hole, VHG via hole, VHL via hole, VU via, VG via, VL via, M4 metal film, ME4 metal film, MG4 outer metal film, SOH insulating film, PAP passivation film, MCA MIM capacitor, DC digital camera, LEZ lens, RL image sensor, AFE analog front end circuit, ISP image sensor processor, SD Conductor device.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Semiconductor Integrated Circuits (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
本発明の実施の形態1に係るMIMキャパシタを備えた半導体装置について説明する。はじめに、本半導体装置が適用される電子機器の一例として、デジタルカメラについて簡単に説明する。
前述した半導体装置では、一つのMIMキャパシタの上部電極として、一辺の長さが約10μmの正方形の上部電極を備えたMIMキャパシタを例に挙げて説明した。この場合のMIMキャパシタ一つあたりの容量は、たとえば0.14pFとなる。半導体装置が適用される電子機器によっては、容量のより大きなものが求められることがある。
上述した各実施の形態では、一つのMIMキャパシタの上部電極の平面パターン(MIMキャパシタの平面パターン)として、正方形の上部電極を例に挙げて説明した。複数の上部電極が配置されるMIMキャパシタMCAでは、最外周に位置するMIMキャパシタMCAの外側に、複数のMIMキャパシタMCAの全体を取り囲むようにガードリングGRが配置される(図7および図25等参照)。MIMキャパシタMCAとガードリングGRとの電位差に起因するリーク電流(線成分)を抑制する観点からは、ガードリングGRの長さは短い方が望ましい。
Claims (8)
- 主表面を有する半導体基板と、
前記半導体基板の前記主表面側の所定の領域に配置され、下部電極(LEL)、誘電体膜(DEC)および上部電極(UEL)をそれぞれ含む複数のMIMキャパシタ(MCA)と、
複数の前記MIMキャパシタ(MCA)の全体を取り囲むように配置されたガードリング(GR)と
を備え、
複数の前記MIMキャパシタ(MCA)では、互いに隣り合う一のMIMキャパシタ(MCA)と他のMIMキャパシタ(MCA)とは、前記一のMIMキャパシタ(MCA)と前記他のMIMキャパシタ(MCA)との間に、前記ガードリング(GR)を介在させることなく所定の間隔(D1)を隔てて配置され、
前記ガードリング(GR)は、配置された複数の前記MIMキャパシタ(MCA)のうち、最も外側に位置するMIMキャパシタ(MCA)の外側に、前記所定の間隔(D1)と同じ間隔を隔てて配置された、半導体装置。 - 複数の前記MIMキャパシタ(MCA)のそれぞれの平面パターンは正方形である、請求項1記載の半導体装置。
- 正方形の前記MIMキャパシタ(MCA)の一辺の長さは、5μm~1000μmである、請求項2記載の半導体装置。
- 複数の前記MIMキャパシタ(MCA)では、
第1方向に沿って少なくとも2つの前記MIMキャパシタ(MCA)が配置され、
前記第1方向と交差する第2方向に沿って少なくとも2つの前記MIMキャパシタ(MCA)が配置された、請求項2記載の半導体装置。 - 複数の前記MIMキャパシタ(MCA)では、第1方向に沿って配置される前記MIMキャパシタ(MCA)の数と、前記第1方向と交差する第2方向に沿って配置される前記MIMキャパシタ(MCA)の数とが同じ数になるように配置された、請求項2記載の半導体装置。
- 複数の前記MIMキャパシタ(MCA)のそれぞれの平面パターンは長方形であり、
複数の前記MIMキャパシタ(MCA)では、
前記長方形の短辺に対応する側同士が対向するとともに、前記長方形の長辺に対応する側同士が対向するように配置され、
前記長辺に対応する側同士を対向させて配置される前記MIMキャパシタ(MCA)の数が、前記短辺に対応する側同士を対向させて配置される前記MIMキャパシタ(MCA)の数よりも多くなるように配置された、請求項1記載の半導体装置。 - 複数の前記MIMキャパシタ(MCA)は、環状に配置され、
前記ガードリング(GR)は、配置された複数の前記MIMキャパシタ(MCA)のうち、最も内側に位置するMIMキャパシタ(MCA)の内側に、前記所定の間隔(D1)と同じ間隔を隔てて配置された、請求項1記載の半導体装置。 - 前記MIMキャパシタ(MCA)を覆うように、前記半導体基板上に形成された層間絶縁膜(IL2)と、
前記層間絶縁膜(IL2)の表面に接するように形成され、複数の前記MIMキャパシタ(MCA)の前記上部電極(UEL)のそれぞれに電気的に接続された金属膜と
を備えた、請求項1記載の半導体装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/069018 WO2013027274A1 (ja) | 2011-08-24 | 2011-08-24 | 半導体装置 |
JP2013529811A JP5774708B2 (ja) | 2011-08-24 | 2011-08-24 | 半導体装置 |
CN201180073006.6A CN103765574B (zh) | 2011-08-24 | 2011-08-24 | 半导体装置 |
US14/238,474 US9478601B2 (en) | 2011-08-24 | 2011-08-24 | Semiconductor device |
TW101124035A TWI569412B (zh) | 2011-08-24 | 2012-07-04 | Semiconductor device |
US15/270,497 US9929086B2 (en) | 2011-08-24 | 2016-09-20 | Semiconductor device |
US15/897,357 US10043742B2 (en) | 2011-08-24 | 2018-02-15 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/069018 WO2013027274A1 (ja) | 2011-08-24 | 2011-08-24 | 半導体装置 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/238,474 A-371-Of-International US9478601B2 (en) | 2011-08-24 | 2011-08-24 | Semiconductor device |
US15/270,497 Continuation US9929086B2 (en) | 2011-08-24 | 2016-09-20 | Semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013027274A1 true WO2013027274A1 (ja) | 2013-02-28 |
Family
ID=47746056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/069018 WO2013027274A1 (ja) | 2011-08-24 | 2011-08-24 | 半導体装置 |
Country Status (5)
Country | Link |
---|---|
US (3) | US9478601B2 (ja) |
JP (1) | JP5774708B2 (ja) |
CN (1) | CN103765574B (ja) |
TW (1) | TWI569412B (ja) |
WO (1) | WO2013027274A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6547926B1 (ja) * | 2018-05-22 | 2019-07-24 | 株式会社村田製作所 | キャパシタ |
CN110268524A (zh) * | 2017-01-27 | 2019-09-20 | 芬兰探测技术股份有限公司 | 不对称定位的防护环接触 |
WO2019225043A1 (ja) * | 2018-05-22 | 2019-11-28 | 株式会社村田製作所 | キャパシタ |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5774708B2 (ja) * | 2011-08-24 | 2015-09-09 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP6347091B2 (ja) * | 2013-03-11 | 2018-06-27 | セイコーエプソン株式会社 | センサーユニット、電子機器および運動体 |
CN110556357B (zh) * | 2018-05-30 | 2021-07-30 | 世界先进积体电路股份有限公司 | 电容结构及其制造方法 |
CN112151494A (zh) * | 2019-06-28 | 2020-12-29 | 中芯国际集成电路制造(北京)有限公司 | 一种半导体器件及其形成方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6060751A (ja) * | 1983-09-14 | 1985-04-08 | Nec Corp | 半導体集積回路 |
JPH03138973A (ja) * | 1989-10-23 | 1991-06-13 | Nec Corp | 半導体集積回路 |
JPH03218063A (ja) * | 1990-01-23 | 1991-09-25 | Matsushita Electron Corp | 半導体集積回路装置 |
JPH0590489A (ja) * | 1991-09-30 | 1993-04-09 | Fujitsu Ltd | 半導体集積回路 |
JPH09289286A (ja) * | 1996-04-23 | 1997-11-04 | Sumitomo Metal Ind Ltd | 半導体装置の容量素子 |
JP2005038882A (ja) * | 2003-07-15 | 2005-02-10 | Sanyo Electric Co Ltd | 半導体装置、及び分圧回路 |
JP2006228803A (ja) * | 2005-02-15 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Mim型容量素子の配置構造 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6100155A (en) * | 1998-09-10 | 2000-08-08 | Chartered Semiconductor Manufacturing, Ltd. | Metal-oxide-metal capacitor for analog devices |
US6451664B1 (en) * | 2001-01-30 | 2002-09-17 | Infineon Technologies Ag | Method of making a MIM capacitor with self-passivating plates |
JP4536314B2 (ja) * | 2002-06-18 | 2010-09-01 | ルネサスエレクトロニクス株式会社 | 半導体記憶装置及び半導体記憶装置の製造方法 |
JP4353685B2 (ja) * | 2002-09-18 | 2009-10-28 | 株式会社ルネサステクノロジ | 半導体装置 |
CN100349296C (zh) * | 2003-02-27 | 2007-11-14 | 富士通株式会社 | 强电介质电容器的制造方法 |
JP4342854B2 (ja) | 2003-07-09 | 2009-10-14 | 株式会社東芝 | 半導体装置及びその製造方法 |
US7282757B2 (en) * | 2003-10-20 | 2007-10-16 | Taiwan Semiconductor Manufacturing Company, Ltd. | MIM capacitor structure and method of manufacture |
JP5065695B2 (ja) * | 2007-02-01 | 2012-11-07 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP2010093171A (ja) | 2008-10-10 | 2010-04-22 | Renesas Technology Corp | 半導体装置およびその製造方法 |
US9460840B2 (en) * | 2011-03-03 | 2016-10-04 | Skyworks Solutions, Inc. | Seal ring inductor and method of forming the same |
JP5774708B2 (ja) * | 2011-08-24 | 2015-09-09 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
-
2011
- 2011-08-24 JP JP2013529811A patent/JP5774708B2/ja active Active
- 2011-08-24 WO PCT/JP2011/069018 patent/WO2013027274A1/ja active Application Filing
- 2011-08-24 CN CN201180073006.6A patent/CN103765574B/zh active Active
- 2011-08-24 US US14/238,474 patent/US9478601B2/en active Active
-
2012
- 2012-07-04 TW TW101124035A patent/TWI569412B/zh active
-
2016
- 2016-09-20 US US15/270,497 patent/US9929086B2/en active Active
-
2018
- 2018-02-15 US US15/897,357 patent/US10043742B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6060751A (ja) * | 1983-09-14 | 1985-04-08 | Nec Corp | 半導体集積回路 |
JPH03138973A (ja) * | 1989-10-23 | 1991-06-13 | Nec Corp | 半導体集積回路 |
JPH03218063A (ja) * | 1990-01-23 | 1991-09-25 | Matsushita Electron Corp | 半導体集積回路装置 |
JPH0590489A (ja) * | 1991-09-30 | 1993-04-09 | Fujitsu Ltd | 半導体集積回路 |
JPH09289286A (ja) * | 1996-04-23 | 1997-11-04 | Sumitomo Metal Ind Ltd | 半導体装置の容量素子 |
JP2005038882A (ja) * | 2003-07-15 | 2005-02-10 | Sanyo Electric Co Ltd | 半導体装置、及び分圧回路 |
JP2006228803A (ja) * | 2005-02-15 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Mim型容量素子の配置構造 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110268524A (zh) * | 2017-01-27 | 2019-09-20 | 芬兰探测技术股份有限公司 | 不对称定位的防护环接触 |
CN110268524B (zh) * | 2017-01-27 | 2023-06-27 | 芬兰探测技术股份有限公司 | 不对称定位的防护环接触 |
JP6547926B1 (ja) * | 2018-05-22 | 2019-07-24 | 株式会社村田製作所 | キャパシタ |
WO2019225043A1 (ja) * | 2018-05-22 | 2019-11-28 | 株式会社村田製作所 | キャパシタ |
Also Published As
Publication number | Publication date |
---|---|
US10043742B2 (en) | 2018-08-07 |
JP5774708B2 (ja) | 2015-09-09 |
TWI569412B (zh) | 2017-02-01 |
US9929086B2 (en) | 2018-03-27 |
TW201310616A (zh) | 2013-03-01 |
US20180175014A1 (en) | 2018-06-21 |
US9478601B2 (en) | 2016-10-25 |
CN103765574A (zh) | 2014-04-30 |
CN103765574B (zh) | 2017-06-30 |
JPWO2013027274A1 (ja) | 2015-03-05 |
US20150123243A1 (en) | 2015-05-07 |
US20170012032A1 (en) | 2017-01-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5774708B2 (ja) | 半導体装置 | |
JP4805600B2 (ja) | 半導体装置 | |
JP5357441B2 (ja) | 固体撮像装置の製造方法 | |
US9171799B2 (en) | Photoelectric conversion apparatus, image pickup system, and manufacturing method therefor | |
US10084035B2 (en) | Vertical capacitor contact arrangement | |
US20100270648A1 (en) | Semiconductor integrated circuit, d-a converter device, and a-d converter device | |
JP2011216865A (ja) | 固体撮像装置 | |
US7977140B2 (en) | Methods for producing solid-state imaging device and electronic device | |
US8350300B2 (en) | Semiconductor device having air gaps in multilayer wiring structure | |
US9496175B2 (en) | Semiconductor device, method of manufacturing the same and camera | |
JP2004146632A (ja) | 半導体装置およびその製造方法 | |
US9769401B2 (en) | Solid-state imaging apparatus, method of manufacturing the same, and camera | |
JP2006013460A (ja) | 固体撮像素子の製造方法および固体撮像素子 | |
US20040043556A1 (en) | Capacitor formed in a multilayer wiring structure of a semiconductor device | |
JP2010212635A (ja) | 固体撮像装置 | |
JP4470862B2 (ja) | 固体撮像素子及び固体撮像装置 | |
JP2016012641A (ja) | 固体撮像素子の製造方法および電子情報機器 | |
JP2008153486A (ja) | 半導体素子、半導体素子の製造方法 | |
JP2005333089A (ja) | 半導体装置、固体撮像素子、半導体装置の製造方法、固体撮像素子の製造方法 | |
JPH0697410A (ja) | 固体撮像装置およびその製造方法 | |
JP2006108572A (ja) | 固体撮像素子およびその製造方法 | |
JP2005209713A (ja) | 半導体装置およびその製造方法 | |
JPH10242446A (ja) | 固体撮像素子及びその製造方法 | |
JP2006237160A (ja) | 固体撮像素子の製造方法 | |
JP2010109155A (ja) | 固体撮像装置およびその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11871346 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013529811 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11871346 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14238474 Country of ref document: US |