| 摘要 |
<p>In devices comprising closely spaced metallised regions deposited upon a dielectric substrate, in particular acoustic wave devices, electric fields may arise between the regions due to pyroelectric effects or acquired static charges during production or subsequently. These fields can cause damage by arcing or cracking of the substrate. The present method overcomes this problem by providing resistive links between such regions so that the fields do not arise. Preferably the links are of metallising formed simultaneously with the metallised regions. Application to a SAW convolver is described in which the links are strips of metallising (7, 8, 9).</p> |
