60-GHz Band Copper Ball Vertical Interconnection for MMW 3-D System-in-Package Front-End Modules
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概要
- 論文の詳細を見る
In order to realize millimeter-wave (MMW) 3-D system-in-package (SiP) front-end modules, we propose a 60-GHz band copper ball vertical interconnection structure, which interconnects between vertically stacked substrates. The structure enables ICs to be placed between the vertically stacked substrates. Since the diameter of the copper balls must exceed the thickness of the ICs, the distance between the substrates in the modules is larger than that of the flip-chip interconnection widely used in the MMW-band. Therefore, the conventional flip-chip interconnection does not scale for the interconnection between the substrates in MMW 3-D SiP front-end modules. The layout of grounded copper balls and the patterns of inner ground layers in the upper/lower substrates are designed using 3-D electromagnetic field simulation. The designed structure allows less than 1dB transmission loss up to 71.1GHz, compared with a through transmission line. The result is verified with fabrication and measurement and confirms the feasibility of MMW 3-D SiP front-end modules.
- 2012-07-01
著者
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Kameda Suguru
Research Institute Of Electrical Communication Tohoku University
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TSUBOUCHI Kazuo
Research Institute of Electrical Communication, Tohoku University
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Yoshida Satoshi
Research Centre For Radiation Protection National Institute Of Radiological Sciences
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Takagi Tadashi
Research Institute Of Electrical Communication Tohoku University
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Tsubouchi Kazuo
Research Institute Of Electrical Communicaiton Tohoku University
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SUEMATSU Noriharu
Research Institute of Electrical Communication, Tohoku University
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SUEMATSU Noriharu
Research Institute of Electric Communication (RIEC), Tohoku University
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TANIFUJI Shoichi
Research Institute of Electrical Communication, Tohoku University
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TANIFUJI Shoichi
Research Institute of Electric Communication (RIEC), Tohoku University
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TSUBOUCHI Kazuo
Research Institute of Electric Communication (RIEC), Tohoku University
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TAKAGI Tadashi
Research Institute of Electric Communication (RIEC), Tohoku University
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KAMEDA Suguru
Research Institute of Electric Communication (RIEC), Tohoku University
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