发明名称 FOERFARANDE FOER FRAMSTAELLNING AV EN ELEKTRONISK TANGENT ELLER ETT TANGENTBORD OCH PRODUKT ENLIGT FOERFARANDET
摘要 <p>A method of manufacturing a pressure-sensitive electronic key or keyboard by providing a base layer (1;21) having at least one first electrically conductive area (2;241); applying at least one thin layer of a fluid piezoelectric precursor material onto the first electrically conductive area; transforming the thin layer of precursor material into an essentially coherent and uniform solid film (3) of a composite piezoelectric material firmly adhering to the electrically conductive area; forming a second electrically conductive (4;242) area spaced from the first electrically conductive area (2;241) and firmly adhering to the solid composite piezoelectric material (3) which bridges the space between the electrically conductive areas (2,4;241,242) for providing at least one essentially monolithic piezoelectric element which firmly adheres to the base layer (1) and comprises the solid composite piezoelectric material (3) with the first and second electrically conductive areas (2,4;241,242); and polarizing the composite piezoelectric material (3) with respect to the first and electrically conductive areas (2,4;241,242). <IMAGE> <IMAGE></p>
申请公布号 FI932893(A) 申请公布日期 1993.12.25
申请号 FI19930002893 申请日期 1993.06.22
申请人 ALGRA HOLDING AG 发明人 BUEHLMANN, ALBERT;SCHENK, HANS
分类号 H01H13/00;H01H13/70;H01H13/712;H01L41/08;H01L41/113;H01L41/257;H01L41/317;H03K17/96 主分类号 H01H13/00
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