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Vesper VM1000 Piezoelectric Microphone
Feb.2017

vesper_vm100_microphone_bw_system_plus_consulting_yole
3 490 €

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Description

Vesper microphone

Tiny MEMS digital barometer for smartphones and wearables

Vesper has developed the first piezoelectric MEMS technology microphone. This breaks new ground in the MEMS microphone world, which has been exclusively composed of capacitive silicon MEMS for more than ten years. It is a very robust technology. The VM1000 is an IP68 microphone, meaning it is water- and dustproof, taking a step towards the waterproof smartphone.

This piezoelectric microphone targets consumer applications: smartphones, wearables and the Internet of Things (IoT). It also positions Vesper to compete with Knowles, Goertek, STMicroelectronics and others for applications in harsh environments.

Vesper microphone

Vesper’s VM1000 microphone device is manufactured using a proprietary MEMS technology based on recent innovations in piezoelectric material for semiconductors and more precisely for the latest BAW filters.

The sensing element in the VM1000 is based on a flexible piezoelectric material membrane formed above a cavity. Sound moves the membrane, which generates an electric current. The VM1000 has a very complex design to optimize signal to noise ratio.

The VM1000 is naturally immune to water and dust, which qualifies it for the IP68 ingress protection rating. It is very stable over time and in harsh environments.

Vesper microphone

This report presents a detailed analysis of sensor structure and cost. It also compares characteristics with the Knowles and Goertek capacitive microphones for the iPhone 7, highlighting differences in technical choices made by the companies.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table of contents

Overview / Introduction


Company profile & Supply Chain


Physical Analysis


> Package
- Package views and dimensions
- Package opening
- Package cross-section
> ASIC die
- View, dimensions, and marking
- Delayering and process
- Cross-section
> MEMS Die
- View, dimensions and marking
- Sensing area details
- Cavity
- Cantilever cross-section 
- Cross-section
- Process characteristics

> Comparison

  

Manufacturing Process Flow


> ASIC front-end process
> ASIC wafer fabrication unit
> MEMS process flow
> MEMS wafer fabrication unit
> Packaging process flow
> Package assembly unit


Cost Analysis


> Yield hypotheses
> ASIC front-end cost
> ASIC back-end 0: probe test and dicing
> ASIC wafer and die cost
> MEMS front-end cost
> MEMS back-end 0: probe test and dicing
> MEMS front-end cost per process step
> MEMS wafer and die cost
> Back-end: packaging cost
> Back-end: packaging cost per process step
> Back-end: final test cost
> Microphone component cost

                                              

Estimated Price Analysis


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


About the authors

ABOUT SYSTEM PLUS CONSULTING

System Plus Consulting specializes in the cost analysis of electronics, from semiconductor devices to electronic systems.

Created more than 20 years ago, System Plus Consulting has developed a complete range of services, costing tools and reports to deliver in-depth production cost studies and estimate the objective selling price of a product.

System Plus Consulting engineers are experts in:

  • Integrated Circuits 
  • Power Devices & Modules 
  • MEMS & Sensors
  • Photonics 
  • LED 
  • Imaging 
  • Display 
  • Packaging 
  • Electronic Boards & Systems.

Through hundreds of analyses performed each year, System Plus Consulting offers deep added-value reports to help its customers understand their production processes and determine production costs. Based on System Plus Consulting’s results, manufacturers are able to compare their production costs to those of competitors.

System Plus Consulting is a sister company of Yole Développement.

More info at www.systemplus.fr 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REVERSE COSTING WITH

  • Detailed photos

  • Precise measurements

  • Material analysis

  • Manufacturing process flow

  • Supply chain evaluation

  • Manufacturing cost analysis

  • Estimated sales price

  • Comparison with Knowles and Goertek / Infineon iPhone 7 microphones