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COTS components

Radiation characterization and functional verification of COTS components

  • Posted by Michael Steffens
  • On December 3, 2019
  • 0

overview

 

Nuclear Effects in Electronics and Optics (NEO)
Main areas of activity

Investigation and application of the effects of ionizing radiation on optical and electronic components and systems

neo

 

The RACOCO project

    • Radiation characterization and functional verification of COTS components for
      space applications 
    • ESA contract 4000127569/19/NL/FE
    • GSTP activity supported by Germany (DLR)
    • Awarded to Fraunhofer INT (represented by the Fraunhofer Gesellschaft)
    • Technical officer: Gianluca Furano
    • Budget 1.2 M€
    • Timeline: 2019-2022 

 

Aim of RACOCO

  • Identify available COTS components 
    • Functionality or properties should greatly benefit the space community
      • Call for participation!
    • Will make use of spin-in approach (e.g. AEC-Q)

 

 

  • Preliminary assessment and radiation testing of a “long” list of components
  • In-depth radiation testing on smaller but comprehensive subset
  • Assess test methods and methodology for COTS components in general
    • Data and experience on the specific parts/lots can serve as input to guidelines for future COTS testing.

 

timelineTimeline of RACOCO

  • The project is currently in the first phase of test candidate identification. 
  • The basic suitability is then checked in a preliminary screening campaign
  • Components that pass this will be subjected to in-depth testing. 
  • Suitable devices will be recommended for further qualification tests beyond radiation to enable use in space.

 

 

 

 

 

Candidate identification

  • Build a „long“ list of candidate devices
    • Functionality or properties should greatly benefit the space community
    • Focus on high integration / high performance / reduced power?
    • Call for participation! http://s.fhg.de/racoco-survey

 

 

  • Why a „long“ list? Examples encountered:
    • Target 100 krad(Si) Failing at < 10 krad(Si)
    • Target no SEL for LET < 60 MeVcm2/mg failing with low LET to SEL
    • Decapsulation issues etc.

identification

 

screeningPreliminary screening

  • The „long“ list of test candidates will be preliminary screened
    • focusing on SEL and TID to identify components which allow for a full characterization
    • If possible using evaluation boards and reference designs 

„short“ list of components with proven feasibility for further testing

 

 

 

 

 

 

Radiation testing campaign

  • All parts passing the preliminary screening will be subjected to in-depth testing
    • Baseline: SEE, TID according to ECSS 25100 / 22900, DD, ….
  • Some components will be subjected to additional tests:
    • Board level or assembly tests: How do component effects scale to a board level test?
    • Array of SEE test campaigns: Could a proton test be enough? 
      • What would the reliability be? (e.g. How applicable is the figure of merit?)
    • TID: Statistics on large data sets
      • Lot to lot, part to part variations, (hopefully pre- and post- a process change)

 

Output of RACOCO

  • Data and experience on an array of COTS components for space
  • Eligible COTS Components that have passed all comprehensive radiation and functional tests shall be proposed for further reliability screening and possibly qualification
    • Radiation is the focus of this project, but not the only issue with COTS
  • Experiences gained during testing shall be submitted to the CTB Radiation working Group in the form of guidelines
    • for possible inclusion in European Radiation Hardness Assurance standards

 

What we also want to learn from RACOCO

  • How can we apply „cheap and easy“ preliminary test methods to first assess radiation hardness on unknown components?
    • Avoid „trial and error“ full-scale tests up to standards
  • How representative and reliable can these preliminary test methods be?
    • Can they replace „full scale tests“ for „high-risk“ missions?
  • How representative are radiation tests for samples from another lot/date code?
    • Links heavily to the use of heritage information and/or COTS databases

 

Summary

  • In RACOCO we will put both COTS components and COTS test strategies to a test (http://s.fhg.de/racoco)
  • The project is currently in its initial phase of device selection
    • Call for participation! http://s.fhg.de/racoco-survey

 

 

  • Test preparations and preliminary screening in 2020
  • „Short“ list of components assembled in Q3/2020
  • In-depth testing from Q4/2020 to Q1/2022
  • Final report and Guidelines Q2/2022
  • Author
  • Recent Posts
Michael Steffens
Michael Steffens
Scientist at the Group “Nuclear Effects in Electronics and Optics (NEO)” of the Fraunhofer INT, Euskirchen, Germany.

Research Fields:

Radiation effects in semiconductor devices: total ionising dose effects, displacement damage effects and single-event effects
Effects of space environments on satellites and materials (shielding)
Modelling Interactions of heavy ions, protons or gamma radiation with matter
Data analysis and evaluation
Previously: Point defects in wide band gap semiconductors
Michael Steffens
Latest posts by Michael Steffens (see all)
  • Radiation characterization and functional verification of COTS components - December 3, 2019
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