Our lithium tantalate wafer production combines high quality wafer fabrication with the cost advantages of Chinese boule growth to add attractively priced lithium tantalate wafers to the quartz wafers already in our SAW product line. We modified the same high volume semiconductor based production line previously installed for quartz to the processing of lithium tantalate for SAW wafer applications.
We offer lithium tantalate wafers with typical specifications
- 3-inch or 100-mm diameter
- 0.25 – 0.50 mm thickness (thinner wafers under development)
- 36o, 42o and X-cut orientations
- fine-lapped back side
- standard “white” wafers and “black” wafers with reduced pyroelectricity
We can accommodate a wide range of Curie temperature specifications (600oC – 610oC) as well as non-standard orientations and smaller diameter wafers. Also the degree to which the pyroelectric effect is reduced in “black” lithium tantalate can be varied to meet customer-specific needs. Wafers in the 0.18 – 0.20 mm thickness range and 150-mm diameter wafers are under development.
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