Patent ID: 9324932
Filing Date: 2016-04-26
CPC Classification: H01L

Claim Text:
1. A piezoelectric device made by the following steps of: (a) providing a coating material including a ferroelectric polymer; (b) applying said coating material onto a lower substrate unit to obtain a coated film in which said ferroelectric polymer has a first conformation state; (c) heating said coated film at a heating temperature between a Curie point (Tc) and a melting point (Tm) of said ferroelectric polymer to cause a change in conformation of said ferroelectric polymer from the first conformation state to a second conformation state; and (d) subjecting said heat-treated coated film to a nanoimprinting process at an imprinting temperature lower than Tc to cause a change in conformation of said ferroelectric polymer from the second conformation state to a third conformation state that is different from the first conformation state, thereby obtaining a nanoimprinted film.