Invention Grant
- Patent Title: Multilayer printed circuit board
- Patent Title (中): 多层印刷电路板
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Application No.: US12034581Application Date: 2008-02-20
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Publication No.: US07888606B2Publication Date: 2011-02-15
- 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: H05K1/16
- IPC: H05K1/16

Abstract:
A multilayer printed circuit board has an IC chip included in a core substrate in advance and a mediate layer provided on a pad of the IC chip. Due to this, it is possible to electronically connect the IC chip to the multilayer printed circuit board without using lead members and a sealing resin. Also, by providing the mediate layer made of copper on the die pad, it is possible to prevent resin residues on the pad and to improve connection characteristics between the pad and a via hole and reliability.
Public/Granted literature
- US20080151520A1 MULTILAYER PRINTED CIRCUIT BOARD AND MULTILAYER PRINTED CIRCUIT BOARD MANUFACTURING METHOD Public/Granted day:2008-06-26
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