> Teardowns & Reverse Costing Analysis
MEMS : Epcos T4000 MEMS microphone
 Teardown & reverse costing analysis of the latest Epcos microphone.
PRICE (Multi user license) : 3690 €
Publication date : 23 January 2012
Epcos T4000
MEMS microphone
Physical Analysis of the Device
Step by Step Reconstruction of the Process Flow
Cost of Manufacturing and Estimation of Selling Price
Yole Développement is proud to publish the reverse costing report on the T4000 microphone from Epcos.
The T4000 is an analog MEMS Microphone using a free-floating diaphragm, and a capacitive sensing. It offers a full integration of a MEMS microphone and an amplification ASIC in a tiny 4-pin LGA package (2,8 x 2,02 x 0,92 mm3).
This MEMS is using Infineon technology adapted by Epcos, now part of TDK-EPC corporation.
This microphone is for high-end consumer applications: notebooks, bluetooth headsets.
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
1. Overview / Introduction p.4
- Executive Summary
- Reverse Costing Methodology
2. Company Profile p.6
3. Physical Analysis p.10
- Package Characteristics & Markings
- Package X-Ray
- Package Composition
- Package Opening & Bonding Number
- Package Cross-Section
- ASIC Dimensions
- ASIC Minimal Dimension and Metal Layers
- ASIC Transistor Details
- ASIC Process Characteristics
- Microphone Dimensions
- Microphone Details
- Microphone Structure
- Microphone Cross-Section
- Microphone Process Characteristics
4. Manufacturing Process Flow p.58
- ASIC Process Flow
- Microphone Process Flow
- Package Process Flow
- Wafer Fabrication Units
5. Cost Analysis p.71
- Supply Chain Analysis
- ASIC Wafer Cost
- ASIC Die Cost
- Microphone Wafer Cost Hypothesis
- Microphone Wafer Cost
- Microphone Die cost
- T4000 Packaging Process Flow
- T4000 Packaging Cost Details
- T4000 Final Test Cost
- T4000 Component Manufacturing Cost
- Yield Synthesis
6. Estimated Manufacturer Price Analysis p.96
- Manufacturers ratios
- Estimated manufacturer Price
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