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mCube MC3635: The Smallest MEMS Accelerometer for Wearables
Apr.2016

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3 290 €

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Description

mCube flyer 3436

Ultra-low power 3D TSV MEMS Single-Chip 3-axis Accelerometer

With its market share increasing every year, mCube is seeking to become a leader in the MEMS accelerometer business using its monolithic single-chip MEMS design approach. With the MC3635, mCube has released the industry’s smallest ultra-low power accelerometer for wearables, enabling significantly extended battery life and very small form factors.

Unlike its main competitors, Bosch Sensortec and STMicroelectronics, mCube provides monolithic sensor integration for consumer electronics – the only company to do this for accelerometers.

mCube’s approach fabricates MEMS sensors directly on top of IC electronics, connected using Through-Silicon Vias (TSVs), in a standard CMOS fabrication facility. 

TSV tilted SEM View

The MC3635 is shipped in 1.6x1.6mm LGA packaging, which is a 36% footprint reduction compared to traditional 2x2mm LGA packages. Among the third generation of mCube accelerometers, the MC3635’s package is smaller than the MC3400 series, but the die size is slightly larger due to the ultra-low power capability. 

The MC3635 is targeted at the ultra-low power and the high-resolution marketplace for applications requiring up to 14-bit resolution.

The report includes a complete overview of mCube’s MEMS accelerometer evolution since its second generation. It also features a detailed technology and cost comparison with leading edge accelerometers from Bosch Sensortec and STMicroelectronics.

 

Package Opening

  Package Optical View

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table of contents

Overview / Introduction


 

Company profile


 

Physical Analysis


> Package

- Package Characteristics Marking & Pin-out
- Package Opening & Wire Bonding Process
- 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

 

mCube MEMS Accelerometer Evolution


 

Technology comparison with Bosch Sensortec and STMicroelectronics 3-Axis Accelerometers


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Technology comparison with Analog Devices Ultra-Low Power 3-Axis Accelerometers


 

 

Manufacturing Process Flow


> Global Overview
> IC Front-End Process
> MEMS Process Flow
> Wafer Fabrication Unit
> Packaging Process Flow & Assembly Unit

 

 

Cost Analysis


> Main steps of economic analysis
> Yield Hypotheses
> CMOS Front-End Cost
> MEMS 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 Cost
> MC3635 Component Cost & Price

         

                                    

Cost & Price comparison with Bosch Sensortec and STMicroelectronics 3-Axis Accelerometers


 

 


About the authors



ABOUT SYSTEM PLUS CONSULTING

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, standard reverse costing reports and costing tools within the following fields: integrated circuits, power devices and modules, MEMS & sensors, photonics (LED, Image Sensors), packaging and electronic boards and systems. www.systemplus.fr.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REVERSE COSTING WITH

  • Detailed Photos

  • Precise Measurements

  • Material Analysis

  • Manufacturing Process Flow

  • Supply Chain Evaluation

  • Manufacturing Cost Analysis

  • Estimated Sales Price

  • Evolution of mCube accelerometers

  • Comparison of MC3635 against Bosch and STMicroelectronics accelerometers

  • mCube MEMS Accelerometer Evolution Technology comparison with Bosch Sensortec and STMicroelectronics 3-Axis Accelerometers

  • Technology comparison with Analog Devices Ultra-Low Power 3-Axis Accelerometers Manufacturing Process Flow