JP6263093B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP6263093B2 JP6263093B2 JP2014130052A JP2014130052A JP6263093B2 JP 6263093 B2 JP6263093 B2 JP 6263093B2 JP 2014130052 A JP2014130052 A JP 2014130052A JP 2014130052 A JP2014130052 A JP 2014130052A JP 6263093 B2 JP6263093 B2 JP 6263093B2
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- 239000004065 semiconductor Substances 0.000 title claims description 47
- 239000011229 interlayer Substances 0.000 claims description 112
- 239000003990 capacitor Substances 0.000 claims description 89
- 239000000758 substrate Substances 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000010937 tungsten Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 77
- 102100033934 DNA repair protein RAD51 homolog 2 Human genes 0.000 description 65
- 101001132307 Homo sapiens DNA repair protein RAD51 homolog 2 Proteins 0.000 description 65
- 239000013256 coordination polymer Substances 0.000 description 60
- 230000004048 modification Effects 0.000 description 38
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- 102100031437 Cell cycle checkpoint protein RAD1 Human genes 0.000 description 35
- 101001130384 Homo sapiens Cell cycle checkpoint protein RAD1 Proteins 0.000 description 35
- 208000036971 interstitial lung disease 2 Diseases 0.000 description 30
- 208000036252 interstitial lung disease 1 Diseases 0.000 description 27
- 238000005530 etching Methods 0.000 description 26
- 208000029523 Interstitial Lung disease Diseases 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000009792 diffusion process Methods 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 101100420776 Arabidopsis thaliana SYN1 gene Proteins 0.000 description 9
- VUDQSRFCCHQIIU-UHFFFAOYSA-N DIF1 Natural products CCCCCC(=O)C1=C(O)C(Cl)=C(OC)C(Cl)=C1O VUDQSRFCCHQIIU-UHFFFAOYSA-N 0.000 description 9
- 101150001108 DIF1 gene Proteins 0.000 description 9
- 101000837443 Homo sapiens T-complex protein 1 subunit beta Proteins 0.000 description 9
- 102100028679 T-complex protein 1 subunit beta Human genes 0.000 description 9
- 238000010828 elution Methods 0.000 description 9
- 102100026413 Branched-chain-amino-acid aminotransferase, mitochondrial Human genes 0.000 description 8
- 101000766294 Homo sapiens Branched-chain-amino-acid aminotransferase, mitochondrial Proteins 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 238000001020 plasma etching Methods 0.000 description 8
- 101000666730 Homo sapiens T-complex protein 1 subunit alpha Proteins 0.000 description 7
- 102100038410 T-complex protein 1 subunit alpha Human genes 0.000 description 7
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 102100026437 Branched-chain-amino-acid aminotransferase, cytosolic Human genes 0.000 description 6
- 101000766268 Homo sapiens Branched-chain-amino-acid aminotransferase, cytosolic Proteins 0.000 description 6
- 238000004380 ashing Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000001459 lithography Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 101100396286 Homo sapiens IER3 gene Proteins 0.000 description 3
- 102100036900 Radiation-inducible immediate-early gene IEX-1 Human genes 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- 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
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- 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
- H01L23/5226—Via connections in a multilevel interconnection structure
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- 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
- H01L27/06—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 a plurality of individual components in a non-repetitive configuration
- H01L27/0611—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 a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region
- H01L27/0617—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 a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region comprising components of the field-effect type
- H01L27/0629—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 a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region comprising components of the field-effect type in combination with diodes, or resistors, or capacitors
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- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
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- 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
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- H01L28/60—Electrodes
- H01L28/82—Electrodes with an enlarged surface, e.g. formed by texturisation
- H01L28/90—Electrodes with an enlarged surface, e.g. formed by texturisation having vertical extensions
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- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/03—Making the capacitor or connections thereto
- H10B12/033—Making the capacitor or connections thereto the capacitor extending over the transistor
- H10B12/0335—Making a connection between the transistor and the capacitor, e.g. plug
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/31—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor
- H10B12/315—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor with the capacitor higher than a bit line
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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
- H01L23/5329—Insulating materials
- H01L23/53295—Stacked insulating layers
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- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Semiconductor Memories (AREA)
- Semiconductor Integrated Circuits (AREA)
- Ceramic Engineering (AREA)
Description
C/A≦1.98[nF/μm2] (1)
C/A≦1.98[nF/μm2] (1)
C=C1+C2+・・・+Cn[nF] (2)
A=A1+A2+・・・+Am[μm2] (3)
図16は、図1の変形例を示す平面図である。本変形例は、凹部REC2の平面形状を除いて、実施形態と同様である。詳細には、本変形例では、凹部REC2の平面形状が矩形となっている。そして実施形態と同様にして、第2電極EL2は、複数の接続孔CHが位置する出隅を構成する第1辺及び第2辺を平面視で有している。そして複数の凹部REC2が、同一の平面形状を有し、かつ上記した第1辺及び第2辺に沿った2次元マトリクス状に配置されている。なお、凹部REC2の平面形状は矩形に限定されるものではなく、例えば、楕円、円、又は八角形であってもよい。
図17は、図3の変形例を示す断面図である。本変形例は、キャパシタCPの形状を除いて、実施形態と同様である。
図18は、図3の変形例を示す断面図である。本変形例は、キャパシタCPの形状を除いて、実施形態と同様である。
図19は、キャパシタCPの変形例を示す断面図である。本変形例は、以下の点を除いて、実施形態と同様である。本変形例では、キャパシタCPは、第1電極EL1(下部電極)及び第2電極EL2(上部電極)が平板状である。そしてキャパシタCPは、例えば図3に示した半導体装置SDの配線層ILに形成されている。なお、第1電極EL1及び第2電極EL2の平面形状は、例えば矩形である。さらに本変形例では、第1電極EL1は、平面視で第2電極EL2を内側に含んでいる。
図21は、キャパシタCPの変形例を示す断面図である。本変形例は、キャパシタCPが層間絶縁膜ILDを容量絶縁膜CDLとして用いている点を除いて、実施形態と同様である。なお、本変形例に係るキャパシタCPは、変形例4と同様、図20に示したアナログ回路ANCに適用してもよい。
図22は、キャパシタCPの変形例を示す平面図である。本変形例は、キャパシタCPの形状を除いて、実施形態と同様である。具体的には、キャパシタCPは、第1電極EL1及び第2電極EL2を有している。そして第1電極EL1及び第2電極EL2は櫛形状に交互に設けられている。そして第1電極EL1及び第2電極EL2の間には容量絶縁膜CDLが位置している。そして第1電極EL1は、実施形態と同様にして、トランジスタ(本図には不図示)と電気的に接続している。一方、第2電極EL2上には、実施形態と同様にして接続孔CHが形成されている。接続孔CHは、下端が第2電極EL2に接している。
ANC アナログ回路
APT 電力供給端子
AR 活性領域
BCT1 コンタクト
BCT2 コンタクト
BDL 絶縁膜
BEST エッチングストップ層
BL ビット線
BP 底部
CCT1 コンタクト
CCT2 コンタクト
CDL 容量絶縁膜
CH 接続孔
CL 洗浄液
CP キャパシタ
CWR 配線
DGC デジタル回路
DGT 接地端子
DIF1 拡散層
DIF2 拡散層
DL1 絶縁膜
DL2 絶縁膜
DPT 電極供給端子
EL1 第1電極
EL2 第2電極
EST エッチングストップ層
FOX フィールド酸化膜
GE1 ゲート電極
GE2 ゲート電極
GI1 ゲート絶縁膜
GI2 ゲート絶縁膜
IHM 絶縁ハードマスク
IL 配線層
ILD 層間絶縁膜
ILD1 層間絶縁膜
ILD2 層間絶縁膜
ILD3 層間絶縁膜
ILD4 層間絶縁膜
IOP 開口
LCF 導電膜
LCT1 コンタクト
LCT2 コンタクト
LDL 絶縁膜
LR ロジック領域
LWR 配線
LWR1 配線
MHM 金属ハードマスク
MOP 開口
MR メモリ領域
PL プレート
REC1 凹部
REC2 凹部
RF1 レジスト膜
RF2 レジスト膜
RF3 レジスト膜
ROP 開口
SD 半導体装置
SUB 基板
SW 側壁部
SW1 サイドウォール
SW2 サイドウォール
TR1 トランジスタ
TR2 トランジスタ
TRE 溝
UCF1 導電膜
UCF2 導電膜
UDL 絶縁膜
VA1 ビア
VA2 ビア
WL ワード線
WR1 配線
WR3 配線
Claims (6)
- 基板と、
前記基板に形成されたトランジスタと、
前記トランジスタと電気的に接続されたキャパシタと、
を備え、
前記キャパシタは、
前記トランジスタと電気的に接続した第1電極と、
前記第1電極から分離している第2電極と、
前記第1電極と前記第2電極の間に位置する容量絶縁膜と、
を含み、
前記第2電極を覆う被覆絶縁膜と、
前記被覆絶縁膜に形成され、下端が前記第2電極に接している複数の接続孔と、
前記複数の接続孔それぞれに埋め込まれたビアと、
をさらに備え、
前記第2電極のキャパシタンスをC[nF]、前記複数の接続孔の下端の面積の合計をA[μm2]としたとき、下記式(1)を満たす半導体装置。
C/A≦1.98[nF/μm2] (1) - 請求項1に記載の半導体装置において、
前記第2電極は、25℃における電気抵抗率が1.68μΩ・cm以上28.00μΩ・cm以下である金属により形成されている半導体装置。 - 請求項2に記載の半導体装置において、
前記金属はタングステンである半導体装置。 - 請求項2に記載の半導体装置において、
前記金属は銅である半導体装置。 - 請求項1に記載の半導体装置において、
前記基板上に位置する層間絶縁膜をさらに備え、
前記キャパシタは、前記層間絶縁膜に形成された凹部を用いて形成されている半導体装置。 - 請求項5に記載の半導体装置において、
前記接続孔の上端の幅が45nm以下である半導体装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014130052A JP6263093B2 (ja) | 2014-06-25 | 2014-06-25 | 半導体装置 |
TW104120061A TWI654741B (zh) | 2014-06-25 | 2015-06-23 | 半導體裝置 |
US14/747,891 US9312327B2 (en) | 2014-06-25 | 2015-06-23 | Semiconductor device |
CN201510349734.5A CN105226060A (zh) | 2014-06-25 | 2015-06-23 | 半导体器件 |
KR1020150089681A KR20160000867A (ko) | 2014-06-25 | 2015-06-24 | 반도체 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014130052A JP6263093B2 (ja) | 2014-06-25 | 2014-06-25 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
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JP2016009781A JP2016009781A (ja) | 2016-01-18 |
JP6263093B2 true JP6263093B2 (ja) | 2018-01-17 |
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JP2014130052A Expired - Fee Related JP6263093B2 (ja) | 2014-06-25 | 2014-06-25 | 半導体装置 |
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US (1) | US9312327B2 (ja) |
JP (1) | JP6263093B2 (ja) |
KR (1) | KR20160000867A (ja) |
CN (1) | CN105226060A (ja) |
TW (1) | TWI654741B (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US10084035B2 (en) * | 2015-12-30 | 2018-09-25 | Teledyne Scientific & Imaging, Llc | Vertical capacitor contact arrangement |
JP6602698B2 (ja) * | 2016-03-11 | 2019-11-06 | ルネサスエレクトロニクス株式会社 | 半導体装置及びその製造方法 |
JP2019121640A (ja) | 2017-12-28 | 2019-07-22 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
CN111656511B (zh) | 2018-04-04 | 2024-08-27 | 松下知识产权经营株式会社 | 电子设备 |
US11139367B2 (en) | 2018-10-30 | 2021-10-05 | Taiwan Semiconductor Manufacturing Company, Ltd. | High density MIM capacitor structure |
US10896873B2 (en) * | 2018-11-16 | 2021-01-19 | Google Llc | Massive deep trench capacitor die fill for high performance application specific integrated circuit (ASIC) applications |
TWI710820B (zh) * | 2019-03-28 | 2020-11-21 | 友達光電股份有限公司 | 顯示裝置 |
TWI710823B (zh) * | 2019-03-28 | 2020-11-21 | 友達光電股份有限公司 | 顯示裝置 |
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