Yole Développement is proud to publish the reverse costing report on the MP45DT01 microphone from ST Microelectronics, using a MEMS die manufactured by Omron.
The MP45DT01 is a digital MEMS Microphone using a free-floating diaphragm, and a capacitive sensing.
It offers a full integration of a MEMS microphone provided by Omron and an amplification ASIC in 6-pin LGA package.
This microphone is for high-end consumer applications: notebook, tablets.. .

This report provides complete teardown of the microphone MEMS with:

•  Detailed photos
•  Material analysis
•  Schematic assembly description
•  Manufacturing Process Flow
•  In-depth economical analysis
•  Manufacturing cost breakdown
•  Selling price estimation

TABLE OF CONTENTS

• Overview / Introduction p.4
  • Executive Summary
  • Reverse Costing Methodology

• Company Profiles p.6
  • ST Microelectronics   
  • Omron   
• Physical Analysis p.11
  • Package Characteristics & Markings
  • Package X-Ray
  • Package Top Cover
  • Package Opening & Bonding Number
  • ASIC Dimensions
  • ASIC Minimal Dimension and Metal Layers
  • ASIC Transistor Details
  • ASIC Process Characteristics
  • Microphone Details
  • Microphone Dimensions
  • Microphone Structure
  • Microphone Cross-Section
  • Microphone process characteristics
• Manufacturing Process Flow p.51
  • ASIC Process Flow
  • Microphone Process Flow
  • Package Process Flow
  • Description of the Wafer Fabrication Units   
• Cost Analysis p.65
  • Supply Chain Analysis
  • ASIC Wafer Cost
  • ASIC Die Cost
  • Microphone Wafer Cost Hypothesis
  • Microphone Wafer Cost
  • Microphone Die cost
  • MP45DT01 Packaging Process Flow
  • MP45DT01 Packaging Cost Details
  • MP45DT01 Final Test Cost
  • MP45DT01 Component Manufacturing Cost
  • Yield Synthesis
• Estimated Manufacturer Price Analysis p.94
  • Manufacturers ratios   
  • Estimated manufacturer Price