Invention Grant
- Patent Title: Printed-circuit board and manufacturing method thereof
- Patent Title (中): 印刷电路板及其制造方法
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Application No.: US12923997Application Date: 2010-10-20
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Publication No.: US08536463B2Publication Date: 2013-09-17
- Inventor: Mitsuharu Shoji , Kiwamu Adachi
- Applicant: Mitsuharu Shoji , Kiwamu Adachi
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2009-259811 20091113; JP2010-161864 20100716
- Main IPC: H05K3/02
- IPC: H05K3/02 ; H05K3/10 ; H05K1/16

Abstract:
A method for manufacturing a printed-circuit board including: a capacitive element forming step of embedding a capacitive element in a substrate resin layer inside a substrate that includes a plurality of wiring layers laminated with the substrate resin layer interposed in between, the capacitive element forming step including forming a lower electrode using a conductive layer on one of the plurality of wiring layers, or using one of the plurality of wiring layers; forming a crystalline metal oxide-containing capacitor dielectric film at a temperature at or below a heat-resistant temperature of the substrate resin layer, and at or above room temperature; and forming an upper electrode on an upper surface of the capacitor dielectric film on the side opposite to the lower electrode.
Public/Granted literature
- US20110114376A1 Printed-circuit board and manufacturing method thereof Public/Granted day:2011-05-19
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