| 摘要 |
A SAW filter includes a substrate, an upper bus bar arranged on the substrate, a lower bus bar arranged on the substrate so as to face the upper bus bar, a first finger IDT arranged so as to be connected to the upper bus bar at one end, a second finger TOT arranged so as to be connected to the lower bus bar at one end, passivation part formed on the first finger IDT and the second finger IDT, a first metal part formed on the passivation part and including all area of the upper bus bar and a partial area of the first finger IDT, and a second metal part formed on the passivation part and including all area of the lower bus bar and a partial area of the second finger IDT. |
