US Patent 7557440 Wiring board and ceramic chip to be embedded
Patent 7557440 was granted and assigned to NGK SPARK PLUG CO on July, 2009 by the United States Patent and Trademark Office.
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A wiring board includes a substrate core and a ceramic chip to be embedded therein. The substrate core has a housing opening portion opening at a core main surface. The ceramic chip is accommodated in the housing opening portion so that the core main surface and a chip first main surface face the same way. The ceramic chip includes a plurality of second terminal electrodes comprised of a metallized layer and formed on the chip second main surface so as to protrude therefrom. A projecting portion, disposed on the second main surface side so as to surround a plurality of the second terminal electrodes, is formed on the chip second main surface so as to protrude therefrom.
US Patent 07557440 Wiring board and ceramic chip to be embedded US Patent 7557440 Wiring board and ceramic chip to be embedded
US Patent 07557440 Wiring board and ceramic chip to be embedded
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