Invention Grant
- Patent Title: Multilayer printed circuit board
- Patent Title (中): 多层印刷电路板
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Application No.: US12920426Application Date: 2009-03-24
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Publication No.: US08304667B2Publication Date: 2012-11-06
- Inventor: Takashi Yoshinaga , Kenji Kataoka , Michihito Otsuki
- Applicant: Takashi Yoshinaga , Kenji Kataoka , Michihito Otsuki
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2008-086209 20080328
- International Application: PCT/JP2009/055789 WO 20090324
- International Announcement: WO2009/119562 WO 20091001
- Main IPC: H05K1/11
- IPC: H05K1/11

Abstract:
A multilayer printed circuit board, including: a signal interconnection which transmits and receives an electrical signal between electronic components; a ground interconnection connected to a ground of a circuit; a power interconnection connected to a power layer to supply power to electronic components; at least one ground layer installed in an inner layer; at least one clearance which passes through the ground layer; and a ground via which connects the ground interconnection with the ground layer. The signal interconnection and the ground interconnection or the signal interconnection and the power interconnection are installed in a pair, and a pair of interconnection vias for interlayer connection are inserted through the clearance installed in the ground layer so that one of the pair of interconnection vias is connected to the ground layer by the ground interconnection.
Public/Granted literature
- US20110011637A1 MULTILAYER PRINTED CIRCUIT BOARD Public/Granted day:2011-01-20
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