H01L41/22

Electricity generator comprising a magneto-electric converter and method of production

A magneto-electric converter capable of converting a variation in magnetic field into a potential difference between two electrical terminals includes a support layer comprising two electrical terminals; a stack disposed on the support layer of a first layer made from a magnetostrictive material defining the reference plane and of a second layer made from a piezoelectric material having a polarization axis in the plane defined by the second layer, parallel to the reference plane; the second layer comprising electrodes; and a means for electrical connection of the electrodes to the electrical terminals.

Embedded MRAM device formation with self-aligned dielectric cap

Methods for forming an integrated circuit are provided. Aspects include providing a wafer substrate having an embedded memory area interconnect structure and an embedded non-memory area interconnect structure, the memory area interconnect structure comprising metal interconnects formed within a first interlayer dielectric, recessing a portion of the memory area interconnect structure, forming a bottom electrode contact on the recessed portion of the memory area interconnect structure, forming a bottom electrode over the bottom electrode contact, forming a protective dielectric layer over the non-memory area interconnect structure, and forming memory element stack layers on a portion of the bottom electrode.

PRESSURE VISUALIZATION DEVICE, MANUFACTURING METHOD THEREOF, AND DETECTION DEVICE
20210356345 · 2021-11-18 ·

A pressure visualization device includes a flexible substrate, a piezoelectric module and an electrochromic module disposed on a surface of the flexible substrate and adjacent to each other, a first attachment layer on a surface of the piezoelectric module facing away from the flexible substrate, and a second attachment layer on the other surface of the flexible substrate; the piezoelectric module includes a plurality of piezoelectric units each including a first electrode, a second electrode, and a piezoelectric layer between the first electrode and the second electrode; the electrochromic module includes a plurality of electrochromic units each including a third electrode, a fourth electrode, an electrochromic layer between the third electrode and the fourth electrode; wherein the second electrode is electrically connected to the third electrode, and the fourth electrode is a transparent electrode.

Wireless transmission system, control method, and storage medium
11533083 · 2022-12-20 · ·

A second transmission path coupler has such a size that a signal width of a first signal that is generated by the second transmission path coupler at timings corresponding to a rising edge and a falling edge of an input signal to be input to a first transmission path coupler in a case where the input signal is transmitted to a position at which the first transmission path coupler and the second transmission path coupler perform an electric field and/or magnetic field coupling is substantially equal to or greater than a difference in a transmission delay amount corresponding to a gap of the first transmission path coupler.

Wireless transmission system
11528057 · 2022-12-13 · ·

A wireless transmission system includes a first transmission line coupler including a pair of signal lines for differential signal transmission with a first end of each signal line connected to a reception unit and another end of each signal line connected to a termination resistor; a second transmission line coupler being shorter than the first transmission line coupler and contactlessly facing the first transmission line coupler to communicate an electric signal with the first transmission line coupler using electric field and/or magnetic field coupling; and a metal plate covering at least a part of a portion of the first transmission line coupler that does not face the second transmission line coupler.

MEMS PIEZOELECTRIC DEVICE AND CORRESPONDING MANUFACTURING PROCESS

A MEMS piezoelectric device includes a monolithic semiconductor body having first and second main surfaces extending parallel to a horizontal plane formed by first and second horizontal axes. A housing cavity is arranged within the monolithic semiconductor body. A membrane is suspended above the housing cavity at the first main surface. A piezoelectric material layer is arranged above a first surface of the membrane with a proof mass coupled to a second surface, opposite to the first surface, along the vertical axis. An electrode arrangement is provided in contact with the piezoelectric material layer. The proof mass causes deformation of the piezoelectric material layer in response to environmental mechanical vibrations. The proof mass is coupled to the membrane by a connection element arranged, in a central position, between the membrane and the proof mass in the direction of the vertical axis.

MEMS piezoelectric device and corresponding manufacturing process

A MEMS piezoelectric device includes a monolithic semiconductor body having first and second main surfaces extending parallel to a horizontal plane formed by first and second horizontal axes. A housing cavity is arranged within the monolithic semiconductor body. A membrane is suspended above the housing cavity at the first main surface. A piezoelectric material layer is arranged above a first surface of the membrane with a proof mass coupled to a second surface, opposite to the first surface, along the vertical axis. An electrode arrangement is provided in contact with the piezoelectric material layer. The proof mass causes deformation of the piezoelectric material layer in response to environmental mechanical vibrations. The proof mass is coupled to the membrane by a connection element arranged, in a central position, between the membrane and the proof mass in the direction of the vertical axis.

ACOUSTIC WAVE PROPAGATION DEVICE HAVING MEDIUM FOR ACOUSTIC WAVE PROPAGATION AND THE MAKING METHOD OF THE MEDIUM FOR ACOUSTIC WAVE PROPAGATION
20220116011 · 2022-04-14 ·

The present invention relates to an acoustic wave transmission device for moving a fluid or fine particles inside the fluid to a desired position using acoustic waves, and more particularly, to an acoustic wave transmission device including an acoustic wave transmission medium that minimizes acoustic wave interference due to the acoustic wave transmission medium by reducing reflection and refraction that may be generated when acoustic waves pass through the acoustic wave transmission medium in which a fluid is accommodated, and a manufacturing method of the acoustic wave transmission medium.

PIEZOELECTRIC DEVICE WITH PIEZOELECTRIC ELONGATE NANO-OBJECTS

The piezoelectric device includes a first electrode, a second electrode, piezoelectric elongate nano-objects in contact with the first electrode, and extending between the first electrode and the second electrode, a first layer of an electrically-insulating first material, the first layer surrounding a first longitudinal portion of each of the piezoelectric elongate nano-objects, a second layer of an electrically-insulating second material, the second layer surrounding a second longitudinal portion of each of the piezoelectric elongate nano-objects. The first layer is arranged between the first electrode and the second layer. The thickness of the first layer is strictly smaller than the thickness of the second layer. The first material has a Young's modulus strictly higher than the Young's modulus of the second material.

PIEZO ACTUATOR AND PIEZO ACTUATOR ARRAY
20210328128 · 2021-10-21 ·

A piezo actuator for carrying out an actuating movement is disclosed, with a piezo bending transducer made of a carrier layer which is at least partially covered on one or two sides with a piezo lamella, with a movable end and with a housing, with a reference stop connected to the housing for determining a reference position for the actuating movement, with a first bearing region which comprises regions of the piezo actuator and the housing and which allows for twists ϕ1 of the piezo bending transducer, with a second bearing region having a surface on the side of the bending transducer and a surface on the side of the housing, and an intermediate layer between the surfaces, which connects them and which can be liquefied, and with a pressure element for generating a bias torque on the piezo bending transducer around the first bearing region against the reference stop.