I-Micronews - View Report Bosch Sensortec BMA250

MEMS : Bosch Sensortec BMA250

Teardown & Reverse Costing Analysis of Bosch Sensortec BMA250, Triple-Axis MEMS Accelerometer

Price : 2290 €

Publication date : 1 January 2012

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1. Overview / Introduction……………………….…........…4
- Executive Summary
- Reverse Costing Methodology

2. Bosch Sensortec Company Profile…………....……...6
- Bosch Sensortec
- BMA250 Specifications & Block Diagram

3. Physical Analysis………………………………......…...12
- Package Characteristics & Markings
- Package Opening & Bonding Number
- Device Structure
- ASIC – Dimensions
- ASIC – Markings & Bond Pads
- ASIC – Functions
- ASIC Synthesis
- MEMS Sensor – Dimensions and Marking
- MEMS Sensor – X-Axis SEM Views
- MEMS Sensor – Y-Axis SEM Views
- MEMS Sensor – Z-Axis SEM Views
- MEMS Sensor – Capacitances electrodes
- Component Cross-Section
- MEMS Cross-Section AA‘
- MEMS Cross-Section BB
- Physical Data Summary
- MEMS process characteristics
- Comparisons with Previous Generation

4. Manufacturing Process Flow…………………………..….49
- Global Overview
- ASIC Process Flow
- Description of the ASIC Wafer Fabrication Unit
- MEMS Process Flow
- Description of the MEMS Wafer Fabrication Unit

5. Cost Analysis……………………………………………..…..64
- Yields Explanation
- Die per wafer & Probe Test
- ASIC Wafer Front-End Cost
- ASIC Die Cost
- MEMS Wafer Front-End Cost
- MEMS Front-End Cost per Process Steps
- MEMS Front-End : Equipment Cost per Family
- MEMS Front-End : Material Cost per Family
- MEMS Back-End 0 : Probe Test & dicing
- MEMS Die Cost
- Back-End 1 : Packaging, Final test, calibration
- BMA250 Component Cost (FE + BE 0 + BE 1)
- Yields Synthesis

6. Estimated Manufacturer Price Analysis ………………...87
- Supply Chain Analysis
- Manufacturers financial ratios
- Estimated Manufacturer Price

Conclusion ……………………………………………………....91

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