A substrate that includes a film-shaped member that has a first main surface and a second main surface; a first electrode that has a third main surface and a fourth main surface, the third main surface facing the second main surface of the film-shaped member, the first electrode having a first patterning region with a first part where the film-shaped member is exposed from the first electrode and a second part where the film-shaped member is not exposed from the first electrode; and an adhesive tape facing the fourth main surface of the first electrode and the second main surface of the film-shaped member such that the adhesive tape is disposed across the first part and the second part in the first patterning region.

Technologies for acoustoelectronic manipulation of micro/nano particles include a system having a piezoelectric substrate coupled to one or more acoustic transducers and a fluid layer positioned above the substrate. Micro/nano particles are introduced to the fluid, which can be in the form of a droplet or in a confined channel, and a signal is applied to the acoustic transducer. One or more parameters of the signal are varied after introducing the micro/nano particles into the fluid. The parameters may include amplitude, frequency, or phase of the signal. The system may include one or more acoustic transducers. Multiple signals may be applied to the acoustic transducers. Wave superposition of acoustic waves in the substrate manipulates micro/nano particles in the fluid. The nanoparticles may include carbon nanotubes, nanowires, nanofibers, graphene flakes, quantum dots, SERS probes, exosomes, vesicles, DNA, RNA, antibodies, antigens, macromolecules, or proteins.

A magnetoelectric (“ME”) device is disclosed. In one aspect, the ME device includes a first piezoelectric substrate portion and a second piezoelectric substrate portion; a magnetostrictive body with a magnetization oriented in a first direction, the magnetostrictive body arranged on and extending between the first and second portions; a pair of input electrodes arranged on the first portion; and a pair of output electrodes arranged on the second portion. The input electrodes are configured to induce a fringing electric field extending between the input electrodes via the first portion, thereby causing a deformation of the first portion which in turn causes a deformation of the magnetostrictive body such that the magnetization thereof is re-oriented to a second direction due to a reverse magnetostriction. An output voltage is induced between the output electrodes by a deformation of the second portion caused by the re-orientation of the magnetization of the magnetostrictive body.

A piezoelectric cooling system and method for driving the cooling system are described. The piezoelectric cooling system includes a first piezoelectric cooling element and a second piezoelectric cooling element. The first piezoelectric cooling element is configured to direct a fluid toward a surface of a heat-generating structure. The second piezoelectric cooling element is configured to direct the fluid to an outlet area after heat has been transferred to the fluid by the heat-generating structure.

A piezoelectric cooling system and method for driving the cooling system are described. The piezoelectric cooling system includes a first piezoelectric cooling element and a second piezoelectric cooling element. The first piezoelectric cooling element is configured to direct a fluid toward a surface of a heat-generating structure. The second piezoelectric cooling element is configured to direct the fluid to an outlet area after heat has been transferred to the fluid by the heat-generating structure.

A thin, flexible computerized sensing platform which can be affixed to a structure to be sensed, which has excellent mechanical coupling between the sensors and the object to be sensed, which can be self-powered and rechargeable, and which can be environmentally sealed, and a method for assembling and utilizing the same.

A thin, flexible computerized sensing platform which can be affixed to a structure to be sensed, which has excellent mechanical coupling between the sensors and the object to be sensed, which can be self-powered and rechargeable, and which can be environmentally sealed, and a method for assembling and utilizing the same.

An imaging device includes a two dimensional array of piezoelectric elements. Each piezoelectric element includes: a piezoelectric layer; a bottom electrode disposed on a bottom side of the piezoelectric layer and configured to receive a transmit signal during a transmit mode and develop an electrical charge during a receive mode; and a first top electrode disposed on a top side of the piezoelectric layer; and a first conductor, wherein the first top electrodes of a portion of the piezoelectric elements in a first column of the two dimensional array are electrically coupled to the first conductor.

A transducer includes a first piezoelectric layer; and a second piezoelectric layer that is above the first piezoelectric layer; wherein the second piezoelectric layer is a more compressive layer with an average stress that is less than or more compressive than an average stress of the first piezoelectric layer.

An electronic device may include a first electrode, a first piezoelectric layer electrically coupled to the first electrode, a first magnetostrictive layer above the first piezoelectric layer, a first tunnel barrier layer above the first magnetostrictive layer, and a ferromagnetic layer above the first ferroelectric layer. The electronic device may further include a second electrode electrically coupled to the ferromagnetic layer a second tunnel barrier layer above the ferromagnetic layer, a second magnetostrictive layer above the second tunnel barrier layer, a second piezoelectric layer above the second magnetostrictive layer, and a third electrode electrically coupled to the second piezoelectric layer. The first piezoelectric layer may be strained responsive to voltage applied across the first and second electrodes, and the second piezoelectric layer may be strained responsive to voltage applied across the second and third electrodes.