发明授权
- 专利标题： Dispersion compensated acoustic surface waveguides using diffused substrates
- 专利标题（中）： 使用扩散衬底的色散补偿声表面波导
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申请号： US192962申请日： 1980-10-02
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公开(公告)号： US4330768A公开(公告)日： 1982-05-18
- 发明人: Peter H. C. Huang , Joseph F. Weller , Thomas G. Giallorenzi
- 申请人： Peter H. C. Huang , Joseph F. Weller , Thomas G. Giallorenzi
- 申请人地址： DC Washington
- 专利权人： The United States of America as represented by the Secretary of the Navy
- 当前专利权人： The United States of America as represented by the Secretary of the Navy
- 当前专利权人地址： DC Washington
- 主分类号： H03H9/02
- IPC分类号： H03H9/02 ; H03H9/42 ; H01L41/22 ; H03H9/68 ; H03H9/70
摘要：
A surface acoustical wave (SAW) waveguide device which compensates for dispersion by utilizing diffused substrates. Various embodiments have in-diffused or out-diffused core regions in which the ray is channeled that are topped by a thin metallic film overlay. Partially surrounding each core region are cladding portions which are also selectively in-diffused or out-diffused and may be covered by the metal overlay. By varying the amounts of in-diffusion or out-diffusion for the particular application, the effects of dispersion are minimized.
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