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1. (WO2018128078) ETCHING METHOD AND ETCHING DEVICE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2018/128078 International Application No.: PCT/JP2017/045708
Publication Date: 12.07.2018 International Filing Date: 20.12.2017
IPC:
H01L 21/3065 (2006.01) ,H01L 21/3205 (2006.01) ,H01L 21/3213 (2006.01) ,H01L 21/768 (2006.01) ,H01L 23/532 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21
Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02
Manufacture or treatment of semiconductor devices or of parts thereof
04
the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer, carrier concentration layer
18
the devices having semiconductor bodies comprising elements of the fourth group of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
30
Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20-H01L21/26142
302
to change the physical characteristics of their surfaces, or to change their shape, e.g. etching, polishing, cutting
306
Chemical or electrical treatment, e.g. electrolytic etching
3065
Plasma etching; Reactive-ion etching
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21
Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02
Manufacture or treatment of semiconductor devices or of parts thereof
04
the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer, carrier concentration layer
18
the devices having semiconductor bodies comprising elements of the fourth group of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
30
Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20-H01L21/26142
31
to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After-treatment of these layers; Selection of materials for these layers
3205
Deposition of non-insulating-, e.g. conductive- or resistive-, layers, on insulating layers; After-treatment of these layers
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21
Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02
Manufacture or treatment of semiconductor devices or of parts thereof
04
the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer, carrier concentration layer
18
the devices having semiconductor bodies comprising elements of the fourth group of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
30
Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20-H01L21/26142
31
to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After-treatment of these layers; Selection of materials for these layers
3205
Deposition of non-insulating-, e.g. conductive- or resistive-, layers, on insulating layers; After-treatment of these layers
321
After-treatment
3213
Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21
Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
70
Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in or on a common substrate or of specific parts thereof; Manufacture of integrated circuit devices or of specific parts thereof
71
Manufacture of specific parts of devices defined in group H01L21/7086
768
Applying interconnections to be used for carrying current between separate components within a device
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23
Details of semiconductor or other solid state devices
52
Arrangements for conducting electric current within the device in operation from one component to another
522
including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
532
characterised by the materials
Applicants:
セントラル硝子株式会社 CENTRAL GLASS COMPANY, LIMITED [JP/JP]; 山口県宇部市大字沖宇部5253番地 5253, Oaza Okiube, Ube-shi, Yamaguchi 7550001, JP
Inventors:
山内 邦裕 YAMAUCHI, Kunihiro; JP
増田 隆司 MASUDA, Takashi; JP
八尾 章史 YAO, Akifumi; JP
Agent:
小林 博通 KOBAYASHI, Hiromichi; JP
富岡 潔 TOMIOKA, Kiyoshi; JP
山口 幸二 YAMAGUCHI, Koji; JP
Priority Data:
2017-00014104.01.2017JP
Title (EN) ETCHING METHOD AND ETCHING DEVICE
(FR) PROCÉDÉ DE GRAVURE ET DISPOSITIF DE GRAVURE
(JA) ドライエッチング方法及びエッチング装置
Abstract:
(EN) A dry etching method for etching a metal film on a substrate using an etching gas, said method characterized in that: the etching gas contains a β-diketone, a first additive gas and a second additive gas; the metal film includes a metal element capable of forming a complex with the β-diketone; the first additive gas is at least one type of gas selected from the group consisting of NO, N2O, O2, and O3; the second additive gas is at least one type of gas selected from the group consisting of H2O and H22; the amount of the β-diketone contained in the etching gas is 10 vol% to 90 vol% with respect to the etching gas; and the amount of the second additive gas contained in the etching gas is 0.1 vol% to 15 vol% with respect to the etching gas. This method makes it possible to improve the etching speed with respect to a metal film.
(FR) L’invention concerne un procédé de gravure sèche permettant de graver un film métallique sur un substrat à l'aide d'un gaz de gravure, ledit procédé étant caractérisé en ce que : le gaz de gravure contient une β-dicétone, un premier gaz additif et un second gaz additif ; le film métallique comprend un élément métallique capable de former un complexe avec la β-dicétone ; le premier gaz additif est au moins un type de gaz choisi dans le groupe constitué par NO, N2O, O2 et O3 ; le second gaz additif est au moins un type de gaz choisi dans le groupe constitué par H2O et H22 ; la quantité de β-dicétone dans le gaz de gravure, rapportée au gaz de gravure, est comprise entre 10 % en volume et 90 % en volume ; et la quantité du second gaz additif dans le gaz de gravure, rapportée au gaz de gravure, est comprise entre 0,1 % en volume et 15 % en volume. Ce procédé permet d'améliorer la vitesse de gravure par rapport à un film métallique.
(JA) 基板上の金属膜を、エッチングガスを用いてエッチングするドライエッチング方法であって、前記エッチングガスが、β-ジケトンと第一添加ガスと第二添加ガスを含み、前記金属膜が、前記β-ジケトンと錯体を形成可能な金属元素を含み、前記第一添加ガスが、NO、N2O、O2及びO3からなる群から選ばれる少なくとも1種のガスであり、前記第二添加ガスが、H2O及びH22からなる群から選ばれる少なくとも1種のガスであり、前記エッチングガスに含まれる前記β-ジケトンの量が、前記エッチングガスに対して10体積%以上90体積%以下であり、前記エッチングガスに含まれる前記第二添加ガスの量が、前記エッチングガスに対して0.1体積%以上15体積%以下であることを特徴とする。この方法により、金属膜のエッチング速度を向上させることができる。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)