Invention Grant
- Patent Title: Method for manufacturing printed circuit board
- Patent Title (中): 印刷电路板制造方法
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Application No.: US12255699Application Date: 2008-10-22
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Publication No.: US08108990B2Publication Date: 2012-02-07
- Inventor: Takashi Kariya , Hironori Tanaka
- Applicant: Takashi Kariya , Hironori Tanaka
- Applicant Address: JP Ogaki-shi
- Assignee: Ibiden Co., Ltd.
- Current Assignee: Ibiden Co., Ltd.
- Current Assignee Address: JP Ogaki-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2005-300320 20051014
- Main IPC: H05K3/00
- IPC: H05K3/00

Abstract:
A printed circuit board including a conductor portion, an insulating layer formed over the conductor portion, a thin-film capacitor formed over the insulating layer and including a first electrode, a second electrode and a high-dielectric layer interposed between the first electrode and the second electrode, and a via-hole conductor structure formed through the second electrode and insulating layer and electrically connecting the second electrode and the conductor portion. The via-hole conductor structure has a first portion in the second electrode and a second portion in the insulating layer. The first portion of the via-hole conductor structure has a truncated-cone shape tapering toward the conductor portion.
Public/Granted literature
- US20090064493A1 PRINTED CIRCUIT BOARD Public/Granted day:2009-03-12
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