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Bosch BME680 Environmental Sensor with Integrated Gas Sensor
Jul.2017

bosch_bme680_environmental_sensor_gaz_overview_system_plus_consulting
3 490 €

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Description

Yole Bosch BME680 environmental sensor gaz cover flyer System Plus Consulting

The world's first environmental sensor combining gas, pressure, humidity and temperature sensing functions in a 3mm x 3mm footprint package

The market for environmental MEMS is set to grow at a Compound Annual Growth Rate of 16% between 2017 and 2022. In 2016, it was worth $65 million and is due to reach $148 million in 2022, according to Yole Développement.

Bosch’s BME680 environmental sensor is the evolution of its BME280 environmental sensor, adding gas sensor functionality. Assembled in an 8-pin, metal-lid 3.0mm x 3.0mm x 0.95mm land grid array package, this System-in-Package (SiP) integrates a digital humidity, pressure, temperature sensor and a separate gas sensor. It is equipped with only two MEMS dies and an amplification application-specific integrated circuit, the same number of dies as the previous BME280 device, but with an additional feature.


Bosch has integrated humidity, pressure and temperature sensors on one single MEMS die, using a new technology for the humidity sensor. The BME680 can detect a broad range of gases, including volatile organic compounds, using a smaller gas sensor die compared to competitors like ams. 

Yole Bosch BME680 environmental sensor gaz overview System Plus Consulting

 

This ‘combo’ sensor shows Bosch's control of sensor integration, with technologies 100% internally developed and manufactured. The MEMS pressure sensor is manufactured with Bosch’s Advanced Porous Silicon Membrane process, integrating the flexible pressure membrane and temperature diodes on a silicon substrate with the humidity sensor.

Yole Bosch BME680 environmental sensor gaz System Plus Consulting

The device is a real SiP, with a combination of four sensors in one small package, mixing wire bonding and flip-chip connections. An exhaustive package analysis is performed in the report.

The report includes deep technological and cost analyses of the BME680, and a technical comparison with Bosch’s environmental sensors, the BMP280 and BME280 devices. Also, it features a comparison with the ams/Cambridge CMOS Sensors gas sensor.

 

      Yole Bosch BME680 environmental sensor gaz cross section System Plus Consulting

 

 

 

 

 

Table of contents

Overview / Introduction


> Company Profile
- Bosch Sensortec
- BME680 Characteristics

 

 

Physical Analysis


> Package
- Package views, dimensions and pin out
- Package opening
- Package cross-section

> ASIC
- View, dimensions and marking
- Delayering
- Main blocks identification
- Process identification
- Cross-section 
- Process characteristics

>  MEMS Humidity and Pressure
- View, dimensions and marking, sensing area details, cross-section, process characteristics

 > MEMS Gas Sensor
- View, dimensions and marking, sensing area details, cross-section, process characteristics

 

 

Bosch Environmental Sensor Evolution and Comparison


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manufacturing Process Flow


> Overview
> ASIC Process Flow/Fab Unit
> MEMS Humidity and Pressure Process Flow/Fab Unit
> MEMS Gas Sensor Process Flow/Fab Unit
> Packaging Process Flow and Assembly Unit

 

 

Cost Analysis


> Summary of the Cost Analysis
> Main Steps of the Economic Analysis
> Yield Hypotheses
> ASIC
- ASIC front-end cost and die cost

> MEMS Pressure and Humidity
- MEMS front-end cost, front-end cost per process step, probe test and dicing cost, wafer and die cost

> MEMS Gas Sensors
- MEMS front-end cost, front-end cost per process step, probe test and dicing cost, wafer and die cost

> Packaging Cost
- Back-end: final test and calibration cost
- BME680 component cost             

 

 

Estimated Price Analysis


> Manufacturer Financial Ratios
> Estimated Selling Price

 

 

 

 

 

 

 

  

 

 

 

 


About the authors



ABOUT SYSTEM PLUS CONSULTING

System Plus Consulting specializes in the cost analysis of electronics, from semiconductor devices to electronic systems.

 

Created more than 20 years ago, System Plus Consulting has developed a complete range of services, costing tools and reports to deliver in-depth production cost studies and estimate the objective selling price of a product.

 

System Plus Consulting engineers are experts in:

  • Integrated Circuits 
  • Power Devices & Modules 
  • MEMS & Sensors
  • Photonics 
  • LED 
  • Imaging 
  • Display 
  • Packaging 
  • Electronic Boards & Systems.

Through hundreds of analyses performed each year, System Plus Consulting offers deep added-value reports to help its customers understand their production processes and determine production costs. Based on System Plus Consulting’s results, manufacturers are able to compare their production costs to those of competitors.

System Plus Consulting is a sister company of Yole Développement.

 

More info at www.systemplus.fr 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REVERSE COSTING WITH

  • Detailed photos

  • Precise measurements

  • Material analysis

  • Manufacturing process flow

  • Supply chain evaluation

  • Manufacturing cost analysis

  • Estimated sales price

  • Comparison between BMP280, BME280 and BME680

  • Comparison between ams/CCMOSS and Bosch gas sensors