发明名称 IC card having a mica film for stable resonance frequency and enhanced antenna properties
摘要 An IC card 10A has a mica capacitor that comprises a mica film 1 and electrodes 6a, 6b formed on both sides thereof, where the mica film 1 serves as a mounting substrate for an antenna coil 2 and an IC chip 3, thereby reducing profile of an IC card and also reducing its cost of manufacture and to stabilize its resonance frequency.
申请公布号 US2004124983(A1) 申请公布日期 2004.07.01
申请号 US20030736603 申请日期 2003.12.17
申请人 SONY CHEMICALS CORP. 发明人 KURODA NOBUKAZU;SUZUKI KAZUAKI
分类号 G06K19/00;B42D15/10;G06K19/07;G06K19/077;H05K1/03;H05K1/16;(IPC1-7):G08B13/14 主分类号 G06K19/00
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