发明名称 HIGH-FREQUENCY MODULE FOR SHIELDING INTER-ELEMENT RADIO WAVE INTERFERENCE
摘要 PROBLEM TO BE SOLVED: To provide a high-frequency module for shielding inter-element radio wave interference equipped with chips which are mounted on an MCM circuit board and simply sealed and restrained from radio wave interference from each other. SOLUTION: Discrete active element chips 3 mounted on a circuit board 1 where wiring 2 is provided are coated with an electromagnetic wave absorbing layer 6, which is composed of an insulating resin of resistance 10<SP>10</SP>Ωcm or above and metal particles that are dispersed in it, through the intermediary of a coating resin layer 5. COPYRIGHT: (C)2003,JPO
申请公布号 JP2003273571(A) 申请公布日期 2003.09.26
申请号 JP20020074253 申请日期 2002.03.18
申请人 FUJITSU LTD 发明人 IIJIMA SHINYA;YAMAGISHI YASUO
分类号 H01L23/29;H01L23/31;H05K9/00;(IPC1-7):H05K9/00 主分类号 H01L23/29
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