Patent ID: 9748469
Date: 2017-08-29
CPC Classifications: G06F,G09F,H01L,H05K

Claim:
1. A multilayer actuator comprising: a plurality of unit actuators disposed on each other, each actuator having a first electroactive layer, a lower electrode and an upper electrode facing the lower electrode, wherein the first electroactive layer comprises a ferroelectric polymer and is interposed between the lower electrode and the upper electrode; and a plurality of adhesive layers, each adhesive layer disposed between two adjacent unit actuators to bond a lower electrode of a unit actuator adjacent to an upper portion of the adhesive layer and an upper electrode of a unit actuator adjacent to a lower portion of the adhesive layer, wherein polarization directions of the first electroactive layers of the plurality of unit actuators are substantially the same, and the plurality of adhesive layers have a high permittivity to form second electroactive layers, such that each of the plurality of adhesive layers is deformed by an electric field applied by the two adjacent electrodes.