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STMicroelectronics LSM6DS3 6-Axis MEMS IMU
Jun.2015

st lsm6ds3 icn
2 990 €

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Description

ST LSM6DS3 flyerST’s extra small 6mm3 and sub-mA IMU named 2014 MEMS device of the year
50% footprint reduction, many process & design innovations


Combo sensors, and particularly 6-axis IMU, will represent the majority of the inertial MEMS market in the coming years according to Yole. This large adoption has not profited much to STMicroelectronics so far, but their latest innovation in the field could be a game changer. Indeed, the LSM6DS3 has been named “MEMS sensor device of the Year” in 2014 and ST had a big design win with a 6-axis IMU in the Apple Watch this year. Targeting the promising market of wearable, ST has done things right to be competitive in here…

By achieving 50% footprint reduction and decreasing considerably the power consumption compared to ST’s previous generation IMU, the LSM6DS3 is ready to attack the mobile market where the competition on price is stronger than ever. In order to obtain this size of only 2.5x3x0.85mm, STMicroelectronics introduced many new features to its device. Indeed, the classical LGA 2-layer PCB has been replaced by an uncommon 3-layers PCB, the MEMS gyro and accelerometer have also been redesigned to be able to shrink the die size. On the processes side, new techniques borrowed from competitors products has been introduced in the MEMS fabrication and also a whole new process for the ASIC is now used allowing to embed 8KB of FIFO memory. The LSM6DS3 is targeted for battery-powered smart sensor systems to be embedded in mobile and wearable devices and innovative objects for the Internet of Things (IoT). The report includes a detailed technology and cost comparison with ST’s previous generation LSM6DS0 and with leading edge 6-Axis IMUs from Bosch Sensortec (BMI160) and InvenSense (MPU-6500).
SC RS218 ST LSM6DS3 img
COMPLETE TEARDOWN WITH:

  •  Detailed Photos
  •  Precise Measurements
  •  Material Analysis
  •  Manufacturing Process Flow
  •  Supply Chain Evaluation
  •  Manufacturing Cost Analysis
  •  Selling Price Estimation
  •  Comparison of LSM6DS3 vs. LSM6DS0
  •  Comparison of ST LSM6DS3 vs. Bosch BMI160 & InvenSense MPU-6500
 

Table of contents

Overview / Introduction


STMicroelectronics Company Profile

> Physical Analysis
> Physical Analysis Methodology
  • Package
  • Package Characteristics Marking & Pin-out
  • Package Opening & Wire Bonding Process
  • Package Cross-Section
> ASIC Die
  • View, Dimensions & Marking
  • Delayering & Main Blocks Identification
  • Process Identification
  • Cross-Section
> MEMS Die
  • View, Dimensions & Marking
  • Bond Pad Opening & Bond Pads Details
  • Cap Removed & Cap Details
  • Sensing Areas Details
  • Cross-Section (Sensor, Cap & Sealing)
  • Process Characteristics

Technology comparison with STMicroelectronics LSM6DS0, Bosch Sensortec BMI160 and InvenSense MPU-6500

Manufacturing Process Flow
Global Overview ASIC

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

Cost Analysis Yields Hypotheses

> Yields Hypotheses
> ASIC Front-End Cost
> ASIC Back-End : Probe Test & Dicing Cost
> ASIC Wafer & Die Cost
> MEMS Front-End Cost
> MEMS Front-End Cost per process steps
> MEMS Back-End : Probe Test & Dicing Cost
> MEMS Wafer & Die Cost
> Back-End : Packaging Cost
> Back-End : Final Test & Calibration Cost
> LSM6DS3 Component Cost

Price Analysis


> ST Financial Results
> LSM6DS3 Selling Price Estimation

 

 


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