POTTASIUM NIOBATE DEPOSIT AND ITS MANUFACTURING METHOD, SURFACE ACOUSTIC WAVE ELEMENT, FREQUENCY FILTER, OSCILLATOR, ELECTRONIC CIRCUIT, AND ELECTRONIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a potassium niobate deposit having a thin film of potassium niobate and its manufacturing method.

SOLUTION: The potassium niobate deposit 100 includes an R surface sapphire substrate 11, a buffer layer 12 formed on the R surface sapphire substrate 11 and consisting of a metal oxide, a lead zirconate titanate niobate (PZTN) layer 13 formed on the buffer layer 12, and a potassium niobate layer 14 or a potassium niobate solid solution layer formed on the lead zirconate titanate niobate (PZTN) layer 13.

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