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Pub. No.:    WO/2008/102717    International Application No.:    PCT/JP2008/052613
Publication Date: 28.08.2008 International Filing Date: 18.02.2008
H05K 3/46 (2006.01)
Applicants: BUFFALO INC. [JP/JP]; 15, Shibata Hondori 4-chome, Minami-ku, Nagoya-shi, Aichi 4578520 (JP) (For All Designated States Except US).
KURASHIGE, Harunobu [JP/JP]; (JP) (For US Only)
Inventors: KURASHIGE, Harunobu; (JP)
Agent: KURUSU, Kazunori; KURUSU PATENT LAW OFFICE Room 403, MARUNOUCHI ESTATE BLDG. 2-17-12, Marunouchi Naka-ku, Nagoya-shi, Aichi 4600002 (JP)
Priority Data:
2007-042135 22.02.2007 JP
2007-043173 23.02.2007 JP
(JA) 多層プリント配線板
Abstract: front page image
(EN)Provided is a multilayer printed-circuit board (10), in which a plurality of power-source/ground layers (46 and 34) and a plurality of signal layers (30, 38, 42 and 50) are mutually laminated through insulating layers (32, 36, 40, 44 and 48). In such an idle region (62) of the signal layers confronting the power-source/ground layers through one insulating layer as has no signal line, auxiliary power-source/ground planes (80 and 82) are formed, thereby to constitute a pseudo condenser between those power-source/ground layers and the signal layers. According to the multilayer printed-circuit board, a conductor layer is commonly used to form the signal lines and to form the plain electrodes of the pseudo condenser.
(FR)L'invention propose une carte de circuits imprimés multicouche (10), dans laquelle une pluralité de couches de source d'alimentation/de terre (46 et 34) et une pluralité de couches de signal (30, 38, 42 et 50) sont mutuellement stratifiées à travers des couches isolantes (32, 36, 40, 44 et 48). Dans une région au repos (62) des couches de signal confrontant les couches de source d'alimentation/de terre à travers une couche isolante telle qu'elle n'a pas de ligne de signal, des plans de source d'alimentation/de terre auxiliaires (80 et 82) sont formés, pour ainsi constituer un pseudo-condensateur entre les couches de source d'alimentation/de terre et les couches de signal. Selon la carte de circuits imprimés multicouche, une couche de conducteur est couramment utilisée pour former des lignes de signal et pour former les électrodes nues du pseudo-condensateur.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, 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, LY, MA, MD, ME, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, 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: Japanese (JA)
Filing Language: Japanese (JA)