Patent ID: 7163874

Claim:
A ferroelectric element manufacturing method comprising: forming a buffer layer, which also functions as a sacrificial layer, on a single crystal substrate; forming a ferroelectric element on the buffer layer; separating the ferroelectric element and the single crystal substrate; and arranging the ferroelectric element that was separated from the single crystal substrate on any substrates, wherein the separating of the ferroelectric element and the single crystal substrate includes: pasting a supportable material for supporting the ferroelectric element over a top face of the ferroelectric element; and separating the ferroelectric element from the single crystal substrate by etching the buffer layer, after the supportable material has been pasted, and the arranging of the ferroelectric element that was separated from the single crystal substrate on any substrates includes: applying adhesive over a top face of any substrates and a bottom face of the ferroelectric element, and joining the separated ferroelectric element to any substrates; and removing the supportable material that was pasted on the top face of the ferroelectric element.