Published research · Custom development · 8-inch production route

Piezoelectric MEMS Microphones & Speakers

Custom piezoelectric MEMS microphones, microphone arrays and micro-speakers for aeroacoustics, sensing, consumer systems, wearables and industrial applications.

Clear sound, wide bandwidth and compact piezoelectric acoustic devices.

10–100 kHz configurable acoustic range

Single and dual-frequency structures

High dynamic range and low-noise architectures

Wafer-level array manufacturing

Piezoelectric MEMS Microphones & Speakers

What We Supply

Single microphone and speaker chips
Dual-frequency and multi-band structures
Microphone arrays and acoustic sensing chips
Wafer-level devices and diced components
Engineering samples and pilot lots
Custom test structures and characterisation options

Configurable Parameters

Frequency response
Sensitivity and dynamic-range targets
Device and cantilever geometry
Array size and pitch
Electrical interface
Packaging and environmental constraints

Application Areas

Aeroacoustic and wind-tunnel testing
Industrial noise and condition monitoring
Wearable and compact acoustic systems
Ultrasonic transmission and reception
Research instrumentation
Custom OEM modules

Manufacturing Route

Engineering Samples

Pilot Production

Volume Production

Real Fabrication & Characterisation

Selected 25FAB and project fabrication images presented in a more commercial, customer-ready format.

Selected Publications

Representative publications related to this platform.

Dual frequency Aluminum scandium nitride piezoelectric microphones with wide bandwidth, large dynamic range and high sensitivity for wind tunnel testing

Transducers 2023 Oral presentation

Authors: Yanfen Zhai, Lixiang Wu
Journal / Conference: Transducers
Year: 2023
Type: Oral presentation

Contact

Piezoelectric MEMS Microphones & Speakers

office@25fab.ch