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1. (WO2007094177) STAINLESS STEEL SUBSTRATE WITH CONDUCTIVE METAL LAYER, HARD DISK SUSPENSION MATERIAL AND HARD DISK SUSPENSION MANUFACTURED BY USING THE MATERIAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/094177    International Application No.:    PCT/JP2007/051751
Publication Date: 23.08.2007 International Filing Date: 26.01.2007
IPC:
B32B 15/01 (2006.01), B21B 1/22 (2006.01), B32B 15/088 (2006.01), C23C 28/00 (2006.01), C25D 5/26 (2006.01), G11B 21/21 (2006.01), H05K 1/05 (2006.01)
Applicants: NIPPON STEEL MATERIALS CO., LTD. [JP/JP]; 6-3, Otemachi 2-chome, Chiyoda-ku, Tokyo, 1008071 (JP) (For All Designated States Except US).
YAMASAKI, Yoshito [JP/JP]; (JP) (For US Only).
NAKATSUKA, Jun [JP/JP]; (JP) (For US Only).
NAGASAKI, Shuji [JP/JP]; (JP) (For US Only).
INAGUMA, Tooru [JP/JP]; (JP) (For US Only).
KUBO, Yuji [JP/JP]; (JP) (For US Only).
SUGIURA, Tsutomu [JP/JP]; (JP) (For US Only)
Inventors: YAMASAKI, Yoshito; (JP).
NAKATSUKA, Jun; (JP).
NAGASAKI, Shuji; (JP).
INAGUMA, Tooru; (JP).
KUBO, Yuji; (JP).
SUGIURA, Tsutomu; (JP)
Agent: USHIKI, Mamoru; 3rd Fl., Yusei Fukushi Kotohira Bldg., 14-1, Toranomon 1-chome, Minato-ku, Tokyo 1050001 (JP)
Priority Data:
2006-037808 15.02.2006 JP
Title (EN) STAINLESS STEEL SUBSTRATE WITH CONDUCTIVE METAL LAYER, HARD DISK SUSPENSION MATERIAL AND HARD DISK SUSPENSION MANUFACTURED BY USING THE MATERIAL
(FR) SUBSTRAT EN ACIER INOXYDABLE AVEC COUCHE METALLIQUE CONDUCTRICE, MATERIAU POUR SUSPENSION DE DISQUE DUR ET SUSPENSION POUR DISQUE DUR FABRIQUEE A PARTIR DUDIT MATERIAU
Abstract: front page image
(EN)ABSTRACT A stainless steel substrate with one or more conductive metal layers, a method for manufacturing the same, and a hard disk drive suspension material using the same that are excellent in etching accuracy and does not involve the use of any substances casing environmental burdens, while ensuring stable adhesion between the conductive metal layers on the stainless steel substrate and the polyimide-based resin layer. The conductive metal layers are formed to have a total thickness ranging from 0.1 to 10µm, a centerline average surface roughness Ra from 0.05 to 1µm, and a ten-point average surface roughness Rz from 1 to 5µm, respectively.
(FR)La présente invention concerne un substrat en acier inoxydable comportant une ou plusieurs couches métalliques conductrices, un procédé pour fabriquer ledit substrat et un matériau de suspension de disque dur utilisant ledit substrat. Ledit substrat offre une précision de gravure excellente et il ne fait appel à aucune substance nocive pour l'environnement, tout en assurant une adhérence stable entre les couches métalliques conductrices sur le substrat en acier inoxydable et la couche de résine polyimide. Les couches métalliques conductrices sont formées de manière à ce que leur épaisseur totale s'inscrive sur une plage allant de 0,1 à 10 µm, leur rugosité de surface moyenne sur ligne centrale (Ra) s'inscrive sur une plage allant de 0,05 à 1 µm, et leur rugosité de surface moyenne sur 10 points (Rz) s'inscrive sur une plage allant de 1 à 5 µm, respectivement.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)