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STMicroelectronics HTS221 Humidity and Temperature Sensor
Apr.2015

stm hts221 humidity icon
2 990 €

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Description

stm HTS221 humidity flyerHigh performances humidity sensor based on STMicroelectronics capacitive digital sensor in a tiny compact package

The HTS221 humidity sensor is the first environmental sensor from STMicroelectronics which follows the trend of new open cavity combos. Assembled in a 6-pins LGA 2 x 2 x 0.9mm package; the HTS221 is a digital humidity and temperature sensor equipped with a sensor die and an ASIC. It has operating ranges of -40…+125°C, 0…100 % relative humidity for 16bit output data for temperature and humidity.

The relative humidity sensor uses a polymer dielectric planar capacitor digital measurement technology which allows a precise response in very compact size. The integrated heater allows a high ODR.

This device uses a new type of package built around an original holed cap developed by STMicroelectronics for mobile phones and for industrial application with a temperature range from -40 °C to +120 °C.

The report presents a deep technology and cost analysis of HTS221 with an exhaustive package analysis. It also includes a technology and production cost comparison with Bosch BME280 humidity and pressure sensor and with Sensirion SHTC1 humidity MEMS.
stm HTS221 humidity imgCOMPLETE TEARDOWN WITH:

  • Detailed Photos
  • Precise Measurements
  • Material Analysis
  • Manufacturing Process Flow
  • Supply Chain Evaluation
  • Manufacturing Cost Analysis
  • Selling Price Estimation
  • Comparison of HTS221 vs. Bosch BME280 and Sensirion SHTC1
 

Table of contents

Overview / Introduction

Companies Profile


Physical Analysis


> Physical Analysis Methodology

> Package
  • Package Views & Dimensions
  • Package Opening
  • Wire bonding Process
  • Package Cross-Section

> ASIC Die
  • View, Dimensions & Marking
  • ASIC Delayering 
  • ASIC main blocks identification
  • ASIC Process
  • ASIC Die Cross-Section

> Pressure & Humidity Die

  • View, Dimensions & Marking
  • MEMS Humidity Sensing Area
  • Cap 
  • MEMS Humidity Cross-Section
  • MEMS processes


Comparison with Bosch BME280 and Sensirion SCHTC1 pressure sensor

Manufacturing Process Flow

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

Cost Analysis

> Main steps of economic analysis
> Yields Hypotheses
> ASIC Front-End Cost
> ASIC Back-End 0 : Probe Test & Dicing
> ASIC Front-End Cost
> MEMS Humidity Wafer & Die Cost
> MEMS Humidity Front-End Cost
> MEMS Humidity Back-End 0 : Probe Test & Dicing
> Back-End : Packaging Cost
>  Back-End : Packaging Cost per Process Steps
> Back-End : Final Test Cost
> BME280 Component Cost

Price Estimation 


 


SYSTEM PLUS CONSULTING


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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