Invention Grant
- Patent Title: Multilayer printed wiring board and method for manufacturing multilayer printed wiring board
- Patent Title (中): 多层印刷线路板及其制造方法
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Application No.: US13314689Application Date: 2011-12-08
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Publication No.: US09038266B2Publication Date: 2015-05-26
- Inventor: Sho Akai , Tatsuya Imai , Iku Tokihisa
- Applicant: Sho Akai , Tatsuya Imai , Iku Tokihisa
- Applicant Address: JP Ogaki-shi
- Assignee: IBIDEN CO., LTD.
- Current Assignee: IBIDEN CO., LTD.
- Current Assignee Address: JP Ogaki-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: H05K3/46
- IPC: H05K3/46 ; H05K3/38 ; H05K3/24 ; H05K3/42

Abstract:
A multilayer printed wiring board including a first interlayer resin insulation layer, a first conductive circuit formed on the first interlayer resin insulation layer, a second interlayer resin insulation layer formed on the first interlayer resin insulation layer and the first conductive circuit and having an opening portion exposing a portion of the first conductive circuit, a second conductive circuit formed on the second interlayer resin insulation layer, a via conductor formed in the opening portion of the second interlayer resin insulation layer and connecting the first conductive circuit and the second conductive circuit, and a coating layer having a metal layer and a coating film and formed between the first conductive circuit and the second interlayer resin insulation layer. The metal layer is formed on the surface of the first conductive circuit and the coating film is formed on the metal layer.
Public/Granted literature
- US20120082779A1 MULTILAYER PRINTED WIRING BOARD AND METHOD FOR MANUFACTURING MULTILAYER PRINTED WIRING BOARD Public/Granted day:2012-04-05
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