Flexible Stacked Piezoelectric Device with Insulating Barrier Layers

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a piezoelectric device composed of layered non-conductive, non-piezoelectric substrates, sandwiching multiple piezoelectric units with electrode layers and insulating layers between them. The patent also covers a stack-like configuration (resembling a book) and a method for manufacturing such a device.

Use CasesContent extracted from patent full text and abstract with AI.

• Flexible sensors for wearable electronics
• Energy harvesting devices for portable electronics
• Flexible or foldable keyboards and human-machine interfaces
• Actuators in robotics or biomedical devices
• Tactile feedback systems for touchscreens

BenefitsContent extracted from patent full text and abstract with AI.

• Lightweight and flexible design due to the use of non-rigid substrates
• Electrically insulated layers enhance device safety and reliability
• Stacked structure allows for higher output or sensitivity in a compact form
• Broad applicability in fields where flexible, sensitive, and efficient piezoelectric devices are required
• Potentially lower cost due to simple materials and manufacturing process

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The present invention comprises a piezoelectric device having a stacked arrangement of two mutually opposing cover layers or cover layer regions, each of which is formed from at least one planar, non-rigid substrate made of electrically non-conductive and non-piezoelectric material; at least two piezoelectric units arranged between the cover layers or cover layer regions and stacked one above the other, each of which is formed from an inner electrode layer and an outer electrode layer and at least one piezoelectric layer located between the respective inner and outer electrode layer; and an electrically insulating barrier layer located between the piezoelectric units, a book formed therewith, and a method for its manufacture.