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1. (WO2018179495) APPARATUS FOR PRODUCING TREATED WATER
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2018/179495 International Application No.: PCT/JP2017/032800
Publication Date: 04.10.2018 International Filing Date: 12.09.2017
IPC:
C02F 1/68 (2006.01) ,B01D 19/00 (2006.01) ,C02F 1/20 (2006.01) ,H01L 21/304 (2006.01)
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
68
by addition of specified substances, e.g. trace elements, for ameliorating potable water
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
19
Degasification of liquids
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
20
by degassing, i.e. liberation of dissolved gases
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
304
Mechanical treatment, e.g. grinding, polishing, cutting
Applicants:
栗田工業株式会社 KURITA WATER INDUSTRIES LTD. [JP/JP]; 東京都中野区中野四丁目10番1号 10-1, Nakano 4-chome, Nakano-ku, Tokyo 1640001, JP
Inventors:
正岡 融 MASAOKA, Tooru; JP
Agent:
重野 剛 SHIGENO, Tsuyoshi; JP
重野 隆之 SHIGENO, Takayuki; JP
Priority Data:
2017-06809230.03.2017JP
Title (EN) APPARATUS FOR PRODUCING TREATED WATER
(FR) APPAREIL POUR PRODUIRE DE L'EAU TRAITÉE
(JA) 水質調整水製造装置
Abstract:
(EN) An apparatus for producing treated water by adding a pH-adjusting agent and/or an ORP-adjusting agent to ultrapure water, provided with: a chemical solution tank 1 for storing a chemical solution comprising a pH-adjusting agent and/or an ORP-adjusting agent; a chemical injection piping 3 for chemical injection of the chemical solution in the chemical solution tank 1 into the ultrapure water; and a deaeration means 6 for deaerating the chemical solution injected into the ultrapure water. When producing treated water, which is useful as rinsing water, etc. for semiconductor wafers, by adding a pH-adjusting agent and/or an ORP-adjusting agent to ultrapure water, the present invention solves the problem of DO being introduced from the chemical solution and the problem of faulty chemical injection and faulty flow meter measurement due to foaming of the chemical solution, making it possible to produce treated water of low DO concentration and high water quality in a stable manner.
(FR) L'invention concerne un appareil pour produire de l'eau traitée par ajout d'un agent régulateur de pH et/ou d'un agent régulateur du potentiel d'oxydo-réduction (P.O.R) à de l'eau ultra-pure, comprenant : un réservoir de solution chimique 1 pour stocker une solution chimique comprenant un agent régulateur de pH et/ou un agent régulateur du P.O.R ; une tuyauterie d'injection chimique 3 pour l'injection chimique de la solution chimique, présente dans le réservoir de solution chimique 1, dans l'eau ultrapure ; et un moyen de désaération 6 pour désaérer la solution chimique injectée dans l'eau ultrapure. Lors de la production d'eau traitée, qui est utile comme eau de rinçage, etc. pour des tranches de semi-conducteur, en ajoutant un agent régulateur de pH et/ou un agent régulateur du P.O.R à de l'eau ultra-pure, la présente invention résout le problème lié à l'introduction d'oxygène dissous (O.D) à partir de la solution chimique et le problème lié à une injection chimique défectueuse et à une mesure de débitmètre défectueuse en raison du moussage de la solution chimique, ce qui permet de produire de l'eau traitée ayant une faible concentration d'O.D et une haute qualité d'eau d'une manière stable.
(JA) 超純水にpH調整剤及び/又は酸化還元電位調整剤を添加して水質調整水を製造する装置であって、pH調整剤及び/又は酸化還元電位調整剤を含む薬液を貯留する薬液タンク1と、該薬液タンク1内の薬液を超純水に薬注する薬注配管3と、該超純水に薬注される薬液を脱気処理する脱気手段6とを備える水質調整水製造装置。超純水にpH調整剤及び/又は酸化還元電位調整剤を添加して、半導体ウェハの洗浄水等として有用な水質調整水を製造するに当たり、薬液からのDOの混入、薬液の発泡による薬注不良や流量計の計測不良といった問題を解決して、DO濃度の低い高水質の水質調整水を安定的に製造することができる。
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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)