JP5824330B2 - 半導体装置及び半導体装置の製造方法 - Google Patents
半導体装置及び半導体装置の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 81
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 239000010410 layer Substances 0.000 claims description 356
- 229910004200 TaSiN Inorganic materials 0.000 claims description 108
- 239000011229 interlayer Substances 0.000 claims description 53
- 239000000203 mixture Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 33
- 229910000077 silane Inorganic materials 0.000 claims description 31
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 28
- 239000002344 surface layer Substances 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 22
- 230000001678 irradiating effect Effects 0.000 claims description 14
- 238000000059 patterning Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 29
- 239000010408 film Substances 0.000 description 28
- 239000000758 substrate Substances 0.000 description 20
- 239000010409 thin film Substances 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 9
- 238000002955 isolation Methods 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000005530 etching Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 4
- 238000005546 reactive sputtering Methods 0.000 description 4
- 150000004756 silanes Chemical class 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910004541 SiN Inorganic materials 0.000 description 1
- 229910020177 SiOF Inorganic materials 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 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
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910002058 ternary alloy Inorganic materials 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- H01L28/20—Resistors
- H01L28/24—Resistors with an active material comprising a refractory, transition or noble metal, metal compound or metal alloy, e.g. silicides, oxides, nitrides
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- 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
- H01L23/5228—Resistive arrangements or effects of, or between, wiring layers
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- 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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- H—ELECTRICITY
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- 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
- H01L27/0802—Resistors only
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- Y10S257/00—Active solid-state devices, e.g. transistors, solid-state diodes
- Y10S257/903—FET configuration adapted for use as static memory cell
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- General Physics & Mathematics (AREA)
- Semiconductor Integrated Circuits (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
第1絶縁層と、
前記第1絶縁層上に設けられ、少なくとも表層がTaSiN層である抵抗素子と、
前記第1絶縁層および前記抵抗素子上に設けられた層間絶縁層と、
前記層間絶縁層に設けられ、一端が前記TaSiN層と接続する複数のビアと、
を備える半導体装置が提供される。
第1絶縁層上にTaN層を形成する工程と、
Si含有ガスを照射することにより、前記TaN層のうち、少なくとも表層をTaSiN層に変化させるシラン照射工程と、
前記第1絶縁層および前記抵抗素子上に層間絶縁層を形成する工程と、
前記層間絶縁層に、一端が前記TaSiN層と接続する複数のビアを形成する工程と、
を備える半導体装置の製造方法が提供される。
図1および図2を用い、第1の実施形態に係る半導体装置10について説明する。この半導体装置10は、以下のような構成を備えている。第1絶縁層(層間絶縁層340)と、第1絶縁層(層間絶縁層340)上に設けられ、少なくとも表層がTaSiN層440である抵抗素子400と、第1絶縁層(層間絶縁層340)および抵抗素子400上に設けられた層間絶縁層360と、層間絶縁層360に設けられ、一端がTaSiN層440と接続する複数のビア500と、を備えている。以下、詳細を説明する。
図8は、第2の実施形態に係る抵抗素子400の構成を示す図である。第2の実施形態は、以下の点を除いて、第1の実施形態と同様である。TaSiN層440は、表層側のSi濃度が大きい方向に組成が傾斜している。以下、詳細を説明する。
図9は、第3の実施形態に係る抵抗素子400の構成を示す図である。第3の実施形態は、TaSiN層440は、全体が同一組成比である点を除いて、第1の実施形態と同様である。以下、詳細を説明する。
図10は、第4の実施形態に係る半導体装置10の構成を示す図である。第4の実施形態は、以下の点を除いて、第1の実施形態と同様である。抵抗素子400は、平面視で複数回屈曲している。以下、詳細を説明する。
図11は、第5の実施形態に係る半導体装置10の構成を示す断面図である。第5の実施形態は、第1絶縁層が素子分離領域120である点を除いて、第1の実施形態と同様である。以下、詳細を説明する。
100 半導体基板
120 素子分離領域
140 拡散領域
160 エクステンション領域
220 ゲート絶縁層
240 ゲート電極
260 側壁絶縁膜
320 ライナー絶縁層
340 層間絶縁層
360 層間絶縁層
400 抵抗素子
402 コンタクト部
404 抵抗部
420 TaN層
440 TaSiN層
460 SiN層
500 ビア
502 ビアホール
520 金属
540 バリア層
Claims (11)
- 第1絶縁層と、
前記第1絶縁層上に設けられ、少なくとも表層がTaSiN層である抵抗素子と、
前記第1絶縁層および前記抵抗素子上に設けられた層間絶縁層と、
前記層間絶縁層に設けられ、一端が前記TaSiN層と接続する複数のビアと、
を備え、
前記TaSiN層は、表層側のSi濃度が大きい方向に組成が傾斜している半導体装置。 - 請求項1に記載の半導体装置において、
前記抵抗素子の抵抗温度係数の絶対値は、0ppm/℃以上50ppm/℃以下である半導体装置。 - 請求項1又は2に記載の半導体装置において、
前記抵抗素子は、TaN層をさらに備え、
前記TaSiN層は、前記TaN層の表層に設けられている半導体装置。 - 請求項1〜3のいずれか一項に記載の半導体装置において、
前記抵抗素子の上に位置するSiN層をさらに備える半導体装置。 - 請求項1〜4のいずれか一項に記載の半導体装置において、
前記TaSiN層は、アモルファスである半導体装置。 - 請求項1〜5のいずれか一項に記載の半導体装置において、
前記TaSiN層のシート抵抗は、102Ω/sq以上107Ω/sq以下である半導体装置。 - 請求項1〜6のいずれか一項に記載の半導体装置において、
前記抵抗素子は、平面視で複数回屈曲している半導体装置。 - 請求項1〜7のいずれか一項に記載の半導体装置において、
前記抵抗素子は、基準電圧回路の一部を構成している半導体装置。 - 第1絶縁層上にTaN層を形成する工程と、
Si含有ガスを照射することにより、前記TaN層のうち、少なくとも表層をTaSiN層に変化させるシラン照射工程と、
前記第1絶縁層および前記TaSiN層上に層間絶縁層を形成する工程と、
前記層間絶縁層に、一端が前記TaSiN層と接続する複数のビアを形成する工程と、
を備え、
前記シラン照射工程において、前記TaN層の表層側のSi濃度が大きい方向に組成が傾斜するように前記TaSiN層を形成する半導体装置の製造方法。 - 請求項9に記載の半導体装置の製造方法において、
前記シラン照射工程において、前記TaN層上にSiN層を形成し、前記SiN層と前記TaN層との界面に前記TaSiN層を形成する半導体装置の製造方法。 - 請求項10に記載の半導体装置の製造方法において、
前記TaN層を形成する工程において、第1絶縁層上の全面に前記TaN層を形成し、
前記シラン照射工程において、前記TaN層上の全面に前記SiN層を形成し、
前記シラン照射工程の後において、前記TaSiN層を、前記SiN層と同一工程でパターニングする工程を備える半導体装置の製造方法。
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US13/670,138 US8829649B2 (en) | 2011-11-07 | 2012-11-06 | Semiconductor device having a resistive element including a TaSiN layer |
US14/458,976 US20140357047A1 (en) | 2011-11-07 | 2014-08-13 | Semiconductor device and method for manufacturing the same |
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US9178152B2 (en) * | 2013-12-23 | 2015-11-03 | Intermolecular, Inc. | Metal organic chemical vapor deposition of embedded resistors for ReRAM cells |
US9224950B2 (en) * | 2013-12-27 | 2015-12-29 | Intermolecular, Inc. | Methods, systems, and apparatus for improving thin film resistor reliability |
JP6519417B2 (ja) | 2014-10-07 | 2019-05-29 | 株式会社デンソー | 半導体装置およびその製造方法 |
JP6551842B2 (ja) * | 2015-10-20 | 2019-07-31 | 新日本無線株式会社 | 半導体装置 |
US10026422B1 (en) * | 2016-05-31 | 2018-07-17 | Seagate Technology Llc | Write pole with low wall angle |
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2011
- 2011-11-07 JP JP2011243266A patent/JP5824330B2/ja not_active Expired - Fee Related
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2012
- 2012-11-06 US US13/670,138 patent/US8829649B2/en active Active
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US20140357047A1 (en) | 2014-12-04 |
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US20130168817A1 (en) | 2013-07-04 |
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