发明名称 LAMINATING CIRCUIT WITH TRIMMING CAPACITOR
摘要 PROBLEM TO BE SOLVED: To provide a laminating circuit with a trimming capacitor having excellent versatility with a widened regulating range of an inner capacitor capacity. SOLUTION: In a resonance capacitor for setting a resonance frequency, a fourth insulating layer Z4 and third, fourth electrode patterns P3, P4 are provided, a third insulating layer Z3 and second electrode pattern P2 are provided on its upper surface, and a roughly regulating capacitor having the layer Z3 and patterns P2, P3 is provided. Further, a second insulating layer Z2 and a first electrode pattern P1 are provided on its upper surface, and a finely regulating capacitor having the layer Z2 and the patterns P1, P2 is provided. The pattern P2 having a large area is trimmed to alter a capacitor capacity in a wide range, and the pattern P1 having a small area is trimmed to finely regulate the capacitor capacity, thereby altering a resonance frequency.
申请公布号 JPH10241990(A) 申请公布日期 1998.09.11
申请号 JP19970042343 申请日期 1997.02.26
申请人 NGK SPARK PLUG CO LTD 发明人 ISHII TETSUYA;KATAGIRI HIROYUKI;ARAGAKI TADASHI;TAKEMURA TATSUYA
分类号 H01G4/255;H01G4/30;H01P7/00;H03H5/02;H03H7/01;H03H7/09;H03H7/12;(IPC1-7):H01G4/255 主分类号 H01G4/255
代理机构 代理人
主权项
地址