Invention Grant
- Patent Title: Multilayer printed wiring board for semiconductor devices and method for manufacturing the board
- Patent Title (中): 用于半导体器件的多层印刷线路板及其制造方法
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Application No.: US13114693Application Date: 2011-05-24
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Publication No.: US08624121B2Publication Date: 2014-01-07
- Inventor: Ayao Niki
- Applicant: Ayao Niki
- Applicant Address: JP Ogaki
- Assignee: Ibiden Co., Ltd.
- Current Assignee: Ibiden Co., Ltd.
- Current Assignee Address: JP Ogaki
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2005-319432 20051102
- Main IPC: H05K1/00
- IPC: H05K1/00

Abstract:
A multilayer printed wiring board includes one or more resin layers having via-holes and a core layer having via-holes. The via-holes formed in the one or more resin layers are open in the direction opposite to the direction in which the via-holes formed in the core layer are open. A method for manufacturing a multilayer printed wiring board includes a step of preparing a single- or double-sided copper-clad laminate; a step of forming lands by processing the copper-clad laminate; a step of forming a resin layer on the upper surface of the copper-clad laminate, forming openings for via-holes in the resin layer, and then forming the via-holes; and a step of forming openings for via-holes in the lower surface of the copper-clad laminate and then forming the via-holes.
Public/Granted literature
- US20110220399A1 MULTILAYER PRINTED WIRING BOARD FOR SEMICONDUCTOR DEVICES AND METHOD FOR MANUFACTURING THE BOARD Public/Granted day:2011-09-15
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