Impedence Networks TRIZ Cases

Through-holes in the base portion alleviate distortion concentrations to improve drive level dependency while maintaining manufacturing precision.

Aluminum nitride piezoelectric film with controlled lattice ratio enhances electromechanical coupling in acoustic wave devices.

Integrating sealing and mounting functions into a single gasket eliminates screw holes, reducing the footprint of small cell filter assemblies.

Laser ablation and grinding adjust piezoelectric layer thickness variability, resolving the trade-off between manufacturing precision and cost.

A longitudinally coupled resonator acoustic wave filter uses apodization weights to vary electrode finger overlap widths.

Unreleased plane acoustic wave resonators use integrated acoustic reflectors to confine energy while attached to the substrate.

Seed layer aligns piezoelectric crystals perpendicular to the surface, fixing random orientation issues in acoustic transducers.

A quartz crystal resonator element uses a notched base with specific X-axis geometry to form a tuning fork structure.

An integrated structure of acoustic wave devices and varactors on a compound semiconductor substrate.

Varying dielectric film thickness suppresses high-order transverse mode waves without requiring special IDT electrode finger shapes.

Segmenting quartz crystal substrate processing into dry and wet etching steps prevents material deposition inside recessed areas, improving yield rates.

An inserted film within a piezoelectric thin film resonator acts as a fixed end to constrain oscillating waves.

Asymmetric oxide raised frames surround the central active region of a bulk acoustic wave resonator to optimize acoustic impedance interfaces.

Fin bulk acoustic resonator arrays overcome single-frequency limitations by varying fin dimensions to achieve continuous tuning across UHF and SHF bands.

A piezoelectric MEMS resonator integrates phase change material switches to enable dynamic frequency reconfiguration.

Non-overlapping connection wires suppress interference with digital circuit blocks, enabling larger memory areas on smaller substrates.

Laminating a silicon oxide layer on degenerate semiconductor tuning fork arms reduces the temperature coefficient of resonant frequency to within ±5 ppm/°C.

Surface acoustic waves from piezoelectric transducers pump e-liquid uniformly, resolving nonuniform atomization and harmful byproduct formation.

A grating electrode on a Y-cut X-propagation lithium tantalate substrate excites SH-type oscillations to minimize spurious responses.

Vertical stacking of integrated circuit dies reduces parasitic capacitance and signal coupling in compact wireless modules.

An insulating film with a lower dielectric constant reduces capacitive coupling, preventing signal leakage outside the pass band.

Graded elastic modulus layers in the sealing resin distribute stress to prevent solder bump crushing under temperature cycling and external pressure.

A transfer board method stabilizes joining member shape during quartz crystal resonator assembly.

Adjusting comb electrode pitch positions suppresses low-frequency ripples and improves return loss without reducing IDT-reflector spacing.

Hermetic packaging and conductive cement secure crystal resonators on substrates, improving frequency stability while maintaining manufacturing scalability.

Transient data processing identifies inverter admittance models without harmonic injection, reducing measurement complexity and hardware requirements.

A mechanical self-reciprocating oscillator generates regular back-and-forth movement using an electrothermal actuator and micromachined switch.

Nested sealing members protect the crystal resonator vibrating part from temperature and pressure variations, maintaining characteristic stability.

An intermediary temperature control element reduces heat transfer between a resonator and base substrate, stabilizing the oscillator's thermal environment.

A 5G common filter reduces passive intermodulation distortion by varying coupling methods based on frequency band signals.

A circuit module design segments sealing resin to cover component side surfaces while avoiding upper regions corresponding to empty portions.

Optimized interdigital transducer geometry maintains high Q-values and reduces bulk radiation loss without requiring bulky reflectors.

Offsetting crystal orientations in monocrystalline silicon reduces temperature coefficient of frequency while maintaining high quality factors.

A dummy chip with a lower thermal expansion coefficient buffers resin stress on the SAW chip, stabilizing electrical characteristics.

Independent sealing of the quartz crystal and thermistor prevents internal contamination, maintaining frequency stability while lowering production costs.

Ground wiring patterns block radiation noise between signal pads, maintaining oscillation frequency during miniaturization.

A resonator-type antenna filter integrates a Wilkinson divider circuit to reduce dielectric losses in radio receiver signal paths.

Segmenting the cavity with a pillar member prevents resin molding pressure from collapsing the protective space around the surface acoustic wave element.

A three-layer amorphous interface containing 3 to 14 atomic percent argon prevents peeling during high-temperature processing.

A piezoelectric resonator device uses a nickel-gold layer and metallic braze material to bond the base and lid, preventing casing damage during fabrication.

Strategic edge alignment and sacrificial mandrels control gap geometry, reducing dip size and stress points from abrupt vertical steps.

Inclined excitation electrode portions confine vibration energy to reduce unnecessary vibrations in piezoelectric vibrating pieces.

An intermediary base structure disperses torsional moments from out-of-plane bending vibrations to suppress resonant frequency shift in MEMS devices.

Anisotropically etched protective layer shields topology edges, preventing corrosion and crystal growth defects in piezo-electric thin films.

Homogeneous cap and device wafers eliminate thermal expansion mismatches while integrated metal lines remove wire bonding complexity.

An auxiliary layer with a lower removal rate protects the electrode structure during chemical mechanical polishing to form a planar surface.

Shear mode crystals clamp the magnetostrictive wire, reducing noise sensitivity and eliminating complex circular arrays.

Segmented cover members isolate the resonator filter and three-dimensional wiring, preventing electrode contact while maintaining sealing performance.

Leaving wiring electrodes exposed prevents current obstruction that causes intermodulation distortion in communication terminals.

A duplexer integrated circuit couples separate transmit and receive filter matching circuits to a single antenna matching structure.