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The Bosch Sensortec BMP380: a digital barometric pressure sensor
Nov.2017

yole_bosch_bmp380_pressure_sensor_system_plus_consulting_2
3 290 €

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Description

Digital barometric pressure sensor, Bosch BMP380 coverSmaller package and improved accuracy in a pressure sensor for wearables!

With its wide 300hPa - 1250hPa measurement-covering range and a low power consumption of only 2.0µA, Bosch’s BMP380 pressure sensor is more accurate than the previous BMP280 pressure sensor. Assembled in a 10-pin, metal-lid 2.0mm x 2.0mm x 0.75mm land-grid array package, the BMP380 integrates a digital pressure sensor and a temperature sensor.

It is equipped with only one MEMS die and an amplification application-specific integrated circuit - the same number of dies as the BMP280, but with smaller dimensions.

The pressure sensor is manufactured with Bosch’s “Advanced Porous Silicon Membrane” process, integrating a flexible pressure membrane and temperature diodes on a silicon substrate.

This System-in-Package consists of two sensors in one small package, mixing wire bonding and flip-chip connections. A thorough package analysis is included in this report, which also describes and compares MEMS and ASIC technology evolutions.

Bosch BMP380 Pressure Sensor, Digital barometric pressure sensor

 

This report also offers deep technological and cost analyses of the BMP380, along with a technical and price comparison with Bosch’s BMP280 pressure sensor, a competing pressure sensor from STMicroelectronics (the LPS22HB), and Bosch’s two environmental sensors, the BME280 and the BME680.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table of contents

Overview / Introduction


 

Company Profile and Supply Chain


> Bosch Sensortec
> BMP380

 

 

Physical Analysis


> Synthesis of the Physical Analysis

> Package
- View and dimensions
- Opening
- Wire bonding process
- Cross-section

> ASIC Die
- View and dimensions, delayering and main blocs, process, cross-section, process characteristics

> MEMS Pressure Die
- MEMS die view and dimensions, cross-section
- MEMS pressure and temperature process
- MEMS pressure and temperature characteristics

> Physical Comparison
- Bosch environmental sensor evolution
- Comparison with STMicroelectronics’ LPS22HB




 

 

 

 

 

 

Sensor Manufacturing Process


> ASIC Die -Front-End Process and Fabrication Unit
> MEMS Process and Fabrication Unit
> Final Test and Packaging Fabrication Unit

 

 

Cost Analysis 


> Synthesis of the Cost Analysis


> Yields Explanation and Hypotheses


> ASIC Component
- Die front-end cost / probe test, thinning and dicing
- ASIC component cost


> MEMS Pressure Die
- Die front-end cost / probe test, thinning and dicing
- Sensor die cost


> LGA Packaged Component
- LGA packaging cost
- Back end: final test
- Component cost

 

 

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, BME680, and BMP380

  • Comparison with STMicroelectronics’ LPS22HB