Piezoelectric/Electrostrictive Devices TRIZ Cases

A microelectromechanical sensor structure detects contaminant deposits through external mechanical excitation and signal conversion.

Patterned electrodes on composite shells correct wavefront errors, reducing mirror weight and manufacturing complexity.

Circular mirror drive coils eliminate corner mass to reduce moment of inertia while maintaining orthogonal coil sides for efficient Lorentz force generation.

Segmenting actuators into folded cantilevers increases deflection angles while maintaining high resonance frequencies and resisting disturbance vibrations.

Bonding a piezoelectric element and wiring board to a diaphragm via resin-covered conductors reduces mechanical load on connection points.

Piezoelectric actuators dynamically adjust plate curvature to resolve planarity errors and image distortions caused by residual stresses.

Segmented contacts expand surface area to prevent voltage drops while maintaining structural simplicity.

Compliant stop mechanisms cushion excessive force on flexible piezoelectric cantilevers, preventing material cracking while maintaining high sensitivity output.

Piezoelectric photonic crystals adjust resonant cavity lengths via voltage to eliminate afterimages and improve display contrast.

Integrates a thin film magnet on supports to drive MEMS mirrors, eliminating bulky external magnets for compact optical scanners.

Potassium sodium niobate films reduce Young's modulus below 100 GPa to eliminate cracks and boost dielectric voltage in lead-free devices.

A piezoelectric element uses a platinum lower electrode with controlled grain size to form stable perovskite ferroelectric thin films.

A single-material proof mass design minimizes thermal expansion differences in CMOS MEMS devices.

Periodic excitation combines multi-axis displacement into composite signals, improving measurement speed without increasing current consumption.

Magnetic actuation displaces a micromechanical mirror around two inclined axes, eliminating electrostatic drive combs and reducing damping.

Split layer deposition combines thin conductive and thick reinforcing layers to reduce gradient stress curvature in MEMS cantilever switches.

A tiltable microelectromechanical structure rotates about two axes via piezoelectrically driven lever elements.

A vibrating mirror element uses a metal substrate and vibration suppression part to abut against beams, stabilizing the mirror swing.

An open-end tubular mirror support post enables complete sacrificial layer extraction, preventing gas generation that degrades mirror reflectance.

Tortuous beam structures and specific drive signal frequencies minimize resonance modes, reducing image distortions in optical scanning.

Relief springs at cantilever beam bases allow longitudinal translation, reducing mechanical stresses and image distortion in MEMS scanning micromirrors.

A hinged microelectromechanical device separates torsional and compression functions into distinct blade components to enable out-of-plane rotation.

A multi-layer piezoelectric ceramic component uses side grooves to expose internal electrodes for independent region control.

A driver circuit provides phase-shifted signals to transducer segments for ultrasonic lens cleaning.

A sensor chip micro-inductor layer deforms under external physical quantities to generate measurable inductance variations.

A PZT film forms on a stacked ZrO2 and Y2O3 template to induce c-axis crystal orientation.

A single proof mass suspended by an elastic arrangement detects motion components along multiple axes via capacitive sensing electrodes.

Lithium niobate piezoelectric membranes activate multiple flexural vibration modes to expand bandwidth and output pressure beyond aluminum nitride limits.

Rough movable element surfaces increase contact area for uniform anti-stiction layer deposition, resolving stiction issues from flat surface minimal contact.

Parallel crystalline grain orientation in multi-layer membranes eliminates crack initiation points, improving reliability and production yield.

Obliquely aligned interdigitated electrodes induce torsional deformation in piezoelectric beams and spiral structures.

A flexible stopper shares an anchor with the main suspension to reduce inertial impact on the proof mass.

Inverse voltage on a compensation piezo element cancels crosstalk-induced voltages, preserving stack rigidity and control bandwidth.

A deformable element anchored on a substrate converts out-of-plane bending into in-plane translation via guide means.

A MEMS hinge layer integrates a spring within its cantilever portion to facilitate easier release of the electrode structure.

A MEMS actuator element uses deflectable electrode structures with optimized edge spacing to minimize parasitic overlap and reduce signal interference.

Opposite current polarization in actuating beams aligns thermal expansion forces, eliminating opposing strain and energy dissipation.

An angled electrical conductor detects breakages in micromirrors by routing stress toward the sensor, preventing undetected failures.

A figure eight reinforcement rib on an optical mirror rear surface increases structural rigidity and moment of inertia.

A lead-free piezoelectric thin-film multilayer body uses a non-crystalline oxide adhesive layer to ensure optimal crystal orientation.

Side surface grooves on the piezoelectric ceramic body anchor insulating films, resolving adhesion deterioration while preserving displacement performance.

Insulated mirror driving wire prevents resonance frequency changes in compact variable focus mirror scanners.

A piezoelectric drive beam incorporates a stress counter film to generate compressive force.

Segmented elastic elements with buried cavities distribute mechanical stress evenly, keeping conductive track stress below the plastic deformation threshold.

A piezoelectric film uses an antiferroelectric layer and a ferroelectric layer to enable bipolar driving at higher voltages.

Partial sacrificial layer etching and chemical transformation create anti-sticking abutments without roughening device surfaces for direct sealing.