Invention Grant
- Patent Title: Multilayer printed circuit board and multilayer printed circuit board manufacturing method
- Patent Title (中): 多层印刷电路板和多层印刷电路板制造方法
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Application No.: US12103414Application Date: 2008-04-15
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Publication No.: US08186045B2Publication Date: 2012-05-29
- Inventor: Hajime Sakamoto , Tadashi Sugiyama , Dongdong Wang , Takashi Kariya
- Applicant: Hajime Sakamoto , Tadashi Sugiyama , Dongdong Wang , Takashi Kariya
- 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: JP2000-049121 20000225; JP2000-073558 20000316; JP2000-078206 20000321; JP2000-105212 20000406; JP2000-152973 20000524
- Main IPC: H05K3/30
- IPC: H05K3/30 ; H05K3/36 ; H05K3/20 ; H05K1/16 ; H05K1/11 ; H05K7/10 ; H05K7/12 ; H05K1/14

Abstract:
A method of manufacturing a multilayer printed circuit board, including providing a substrate, embedding an electronic component having a die pad on a surface of the component into the substrate such that the component has the surface and pad exposed from a surface of the substrate, forming a metallic layer including metallic film layers such that the surface of the substrate and the pad and surface of the component are covered with the metallic layer, providing a resist on the metallic layer such that a portion of the metallic layer on the pad is exposed from the resist, forming a thickening metallic layer on the portion of the metallic layer exposed, removing the resist from the substrate and surface of the component, and etching to remove the metallic layer such that a mediate layer including the portion of the metallic layer is formed between the pad and the thickening layer.
Public/Granted literature
- US20080201944A1 MULTILAYER PRINTED CIRCUIT BOARD AND MULTILAYER PRINTED CIRCUIT BOARD MANUFACTURING METHOD Public/Granted day:2008-08-28
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