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Voice-enabled devices are shapingpeople’s everyday lives; smartphones,smart speakers and wireless EarPodsintegrate both microphones to captureour voices and microspeakers to createsound. The legacy electrodynamic andbalanced-armature microspeaker markethas reached almost $9B and is expectedto grow to more than $10.5B in 2024.Good sound quality, low powerconsumption and lower physical volumeare the main drivers of the microspeakerconsumer market.
In this context, System Plus Consultingconducted a full reverse costing study ofthe USound UT-P 2016, the first mass-produced MEMS speaker. It is smallerthan the classical speaker, with a volumeof only 49mm3, and has been developedfor in-ear audio systems. USound hasdeveloped the technology to bringtogether several MEMS speakers, up to80, to increase the output sound powerand give better spatial sound distribution.
The piezoelectric speaker is manufacturedby STMicroelectronics which hasdeveloped piezoelectric (PZT) technologyto add it to its MEMS portfoliotechnologies. But the PZT actuator is notthe only innovative MEMS process. Theactuators are manufactured on thinmembranes etched by micromachining onSOI substrates, another specialty ofSTMicroelectronics.
The secret of the first MEMS speaker isnot only in the silicon. The package is veryimportant because the acousticmembrane is fixed onto the package, witha consequent impact on the soundquality. All package structures aredesigned to enhance sound quality andprotect the silicon MEMS, as shown onthe cross-section and disassemblypictures.
This report includes technology and costanalysis of the UT-P 2016 MEMS Speaker.These analyses provide the technicalintelligence necessary to understand thistechnology.
COMPLETE TEARDOWN WITH
• Detailed photos
• Precise measurements
• Piezoelectric actuator cross-sections
• Materials analysis
• Manufacturing process flow
• Supply chain evaluation
• Manufacturing cost analysis
• Selling Price estimation
First mass-produced MEMS speaker based on SOI and PZT thin film technology.
REVERSE COSTING® – STRUCTURE, PROCESS & COST REPORT
Title: USoundAchelous UT-P 2016 MEMS Speaker
Pages: 88
Date: October 2019
Format: PDF & Excel file
Price: EUR 3,990
USound Achelous UT-P 2016 MEMS Speaker
IC – LED – RF – MEMS – IMAGING – PACKAGING – SYSTEM – POWER - DISPLAY
TABLE OF CONTENTS
Overview/Introduction
• Executive Summary
• Reverse Costing Methodology
• Glossary
Company Profile
• USound, STMicroelectronics
Market Analysis
• Piezoelectric-Based Device Market
Piezoelectric material: Function and Integration
• Physical Analysis Methodology
• Package
o Package views, dimensions and marking
o Package opening and cross-section
• MEMS Speaker Die
o Views, dimensions and marking
o MEMS opening and cross-section
o Process characteristics
Manufacturing Process Flow
• Global Overview
• MEMS Front-End Process
• MEMS Wafer Fabrication Unit
• Package Assembly Unit
• Back-End: Final test
Cost analysis
• Yield Explanations and Hypotheses
• MEMS Speaker
o Front-end cost
o Wafer and die cost
• Component
o Back-end: Packaging and final test cost
o Component cost
Estimated Price Analysis
• Manufacturer Financial ratios
• Estimated Manufacturer price
USOUND ACHELOUS UT-P 2016 MEMS SPEAKER
RELATED REPORTS
AUTHORS
Piezoelectric Material From Bulk to Thin Film –Comparison 2019Unique technical and cost review of 16 piezoelectric modules from market pioneers, including transducers, inkjet dies, MEMS gyroscopes, RF filters, etc.September 2019 - EUR 6,490*
Apple iPhone X: MEMS Microphones from Goertek, Knowles, and AAC TechnologiesAnalysis and comparison of the design and process evolution used by Apple’s three MEMS microphone suppliers.March 2018 - EUR 4,490*
Vesper VM1000 Piezoelectric MicrophoneFirst piezoelectric MEMS microphone could disrupt consumer applications.February 2017 - EUR 3,490*
Sylvain Hallereau is in charge ofcosting analyses for IC, powerand MEMS. He has more than10 years of experience in powerdevice manufacturing costanalysis and has studied a widerange of technologies.
Guillaume Chevalier has joinedSystem Plus Consulting in early2018 to perform physical analyses.He holds a two-year universitydegree in technology of physicalmeasurements and instru-mentation technics.
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![USound MEMS speakers Adap UT-P 2017...with IEC noise (60268-1) @ 60 dB [mW] 33 *Power consumption test conditions can be found in page 6. SPECIFICATIONS USound GmbH | Datasheet Adap](https://img.pdfslide.net/doc/110x75/6138040d0ad5d2067648ffd6/usound-mems-speakers-adap-ut-p-2017-with-iec-noise-60268-1-60-db-mw-33.jpg)
