发明名称 ACOUSTIC-WAVE FILTER
摘要 Digital structures of a surface wave filter are manufactured in a photolithographic method with a lift-off or with an etching technique. The surface wave filter comprises at least one resonator structure, this resonator structure having auxiliary coatings of the substrate surface allocated to it. These auxiliary coatings are continuations of existing, neighboring pads which compensate during an exposure step associated with manufacture of the digital structures.
申请公布号 EP0189123(B1) 申请公布日期 1991.06.12
申请号 EP19860100516 申请日期 1986.01.16
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 BULST, WOLF-ECKHART, DIPL.-PHYS.;LINDEMANN, GERTRUD;ZIBIS, PETER, DIPL.-ING.
分类号 H03H3/08;H03H9/02;H03H9/145;H03H9/64 主分类号 H03H3/08
代理机构 代理人
主权项
地址