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mCube Single-Chip 3-Axis Accelerometer

cover mcube
2 990 €

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flyer mcubeThe first 3D Single-Chip MEMS Accelerometer for Consumer Applications
Low manufacturing cost architecture with good performance level

New player mCube, mainly active on the Chinese market, is getting traction with new technologies allowing very low manufacturing cost without decreasing performance. mCube managed to design a smart integration and is the only provider of single-chip accelerometers for consumer electronics.

mCube 3D MEMS process consists in MEMS elements fabricated on top of the drive IC and connected using through silicon vias (TSV). To protect the MEMS elements, a cap is sealed with an eutectic alloy bonding process.
The mCube accelerometer is assembled in a standard LGA 2x2mm package.

With this clever integration, mCube is positioned one step ahead of STMicroelectronics and Bosch Sensortec related to size and manufacturing cost.

emv mcube
This report will provides a complete teardown of the MEMS accelerometer with:

  • Detailed photos
  • Material analysis
  • Schematic assembly description
  • Manufacturing Process Flow
  • In-depth manufacturing cost analysis
  • Supply chain evaluation
  • Selling price estimation

Table of contents



Executive Summary
Reverse Costing Methodology

mCube Company Profile

Physical Analysis

  • Physical Analysis Methodology
  • Package
    • Package Characteristics & Markings
    • Package Opening
    • Package Cross-Section
  • Die
    • Dimensions & Markings
    • Bond Pad Opening
    • MEMS Cap Removed
    • MEMS Cap Details
    • MEMS Sensing Area
    • MEMS Sensing Area Removed
    • Delayering (Metal Layers Removed)
    • IC Process
    • Die Cross-Section
Comparison with Accelerometers from Bosch & STMicroelectronics

Manufacturing Process Flow
  • Global Overview
  • IC Front-End Process
  • MEMS Process Flow
  • Wafer Fabrication Unit
  • Packaging Process Flow
  • Package Assembly Unit

Cost Analysis
  • Main steps of economic analysis
  • Yields Hypotheses
  • CMOS Front-End Cost
  • MEMS Front-End Cost per process steps
  • Total Front-end Cost
  • Back-End 0 : Probe Test & Dicing
  • Wafer & Die Cost
  • Back-End : Packaging Cost
  • Back-End : Packaging Cost per Process Steps
  • Back-End : Final Test & Calibration Cost
  • Accelero Component Cost & Price
  • Cost & Price Comparison with Bosch and ST



Across the Enterprise, from marketing to purchasing and R&D, product manufacturing cost is a major factor which has to be measured and then optimized. Since 1993, System Plus Consulting’s mission has been to develop and sell the right tools and services to meet these costing requirements.

System Plus Consulting utilizes an engineering approach to cost. Cost models and technology expertise are combined to provide customers with an accurate and objective estimation of manufacturing costs and selling prices.

Headquartered in Nantes, France, System Plus Consulting is specialized in technology and cost analysis of electronic components and systems. During our 20 years in business, we have built and refined detailed cost models as the primary tools for hundreds of analyses. The highly qualified System Plus cost engineers combine broad and deep skills in semiconductor and electronics technologies with years of experience in cost modeling.

We offer:
− Custom reverse costing analyses: technology analysis followed by cost evaluation
− Standard reverse costing reports: regular publications on innovative products (available from our catalogue)
− Costing tools: software tools combining models and data to perform cost analysis

System Plus Consulting analyzes any type of electronic devices and systems, with a special focus on semiconductor technologies. Major fields of technology and cost expertise are:
− Integrated Circuits
− Power Devices and Modules
− MEMS & Sensors
− Photonics: LED, Image Sensors
− Packaging including wafer level
− Electronic Boards and Systems

Our analyses are used by Purchasing Departments to measure their suppliers’ cost structure, R&D Departments to confirm technological choices depending on their impact on costs, and Benchmarking/Marketing Departments to monitor the products on the market.

System Plus Consulting is committed to provide a high level of service:
− Delivery of reports and custom analyses with a minimum lead time.
− Results presentation and online Q&A sessions when support is needed.
− Open methodology and full confidentiality in order to maintain a trustful collaboration.

Since 2008, our partnership with YOLE Développement has allowed us to stay at the forefront of technologies and has added a market view to our reports.

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